КЛАПАН, СИСТЕМА ДЛЯ ВВЕДЕНИЯ ЖИДКОСТЕЙ ПАЦИЕНТУ И ИСПОЛЬЗОВАНИЕ КЛАПАНА ДЛЯ ВВЕДЕНИЯ ПИТАТЕЛЬНОГО ВЕЩЕСТВА

Изобретения относятся к области медицины. Клапан обеспечивает питание пациента в клинических условиях. Клапан приемлем для использования совместно с роторным перистальтическим насосом и способен пропускать поток жидкости в одном направлении и предотвращать движение жидкости в другом (обратном) направлении, при этом клапан включает запорный элемент, давление срабатывания которого находится в интервале от 0.10 до 0.20 бар. Кроме того, раскрыта система для введения и использования клапана для обеспечения пациента питательными веществами. Технический результат заключается в предотвращении обратного течения жидкости при введении жидкости пациента и исключение ее свободного течения. 3 н. и 2 з.п. ф-лы, 1 ил.

НАПРАВЛЯЮЩИЙ ЭЛЕМЕНТ ДЛЯ ИСПОЛНИТЕЛЬНОГО МЕХАНИЗМА КЛАПАНА

Узел исполнительного механизма клапана включает в себя корпус, содержащий мембранную пластину и мембрану, размещенную внутри корпуса. Выступ для крепления штока проходит вниз от нижней поверхности мембранной пластины, причем выступ для крепления штока соединен со штоком исполнительного механизма, проходящим в направлении продольной оси. Направляющий элемент включает в себя верхнюю стенку и центральное отверстие, сквозь которое проходит выступ для крепления штока, и верхняя стенка в результате воздействия пружины прижимается к нижней поверхности мембранной пластины. Направляющий элемент дополнительно включает в себя боковую стенку, которая проходит от верхней стенки в направлении вниз, причем наружная поверхность боковой стенки взаимодействует с внутренней поверхностью кожуха пружины с целью ограничения смещения мембранной пластины и штока исполнительного механизма в направлении, перпендикулярном продольной оси. Выступ для крепления штока мембранной пластины, к тому же, проходит сквозь центральное ...

ТРУБА С ЗАЩИТОЙ ОТ ПЕРЕЛИВА

Настоящее изобретение относится к области трубной арматуры, и в частности относится к устройству с защитой от перелива. Труба с защитой от перелива содержит стенку трубы и клапан, при этом стенка трубы имеет эллиптическую форму, симметричную вдоль большей оси эллипса или асимметричную вдоль большой оси эллипса, при сечении по внутренней границе стенки трубы в плоскости, перпендикулярной продольному направлению стенки трубы, а сечение по внешней границе стенки трубы имеет форму замкнутого кольца. Клапан имеет V-образную конструкцию при сечении в плоскости, где расположена большая ось эллиптической формы по внутренней границе стенки и стенки трубы в ее продольном направлении, а клапан соединен с внутренней боковой поверхностью, кроме того, клапан снабжен зазором для однонаправленного прохождения текучей среды. Техническим результатом изобретения является предотвращение перерасход жидкости, а также ошпаривание и случайное обрызгивание пользователя, обеспечивая его личную безопасность, также ...

ОБРАТНЫЙ КЛАПАН ВАКУУМНОГО УСИЛИТЕЛЯ

Обратный клапан вакуумного усилителя, содержащий корпус, крышку с приливом, отличающийся тем, что корпус имеет перфорированную перегородку, на которой установлена эластичная мембрана.

Обратный клапан

Вентиль

Устройство для включения пневматических ковочных машин

SCHIEBERDURCHFLUSSREGLER MIT VERÄNDERLICHER KANALNUT

Ventil mit Ventilkörper und Kurbelgehäuseentlüftungsvorrichtung

Stopfbuechsenloses Ventil

MEMBRANVENTIL ZUR STEUERUNG EINES DRUCKMITTELSTROMES

Ventil mit nichtsteigender Spindel, insbesondere Membranventil, mit einer Anzeigevorrichtung

VENTIL ZUM STEUEREN DER VERBINDUNG ZU EINER ABZWEIGLEITUNG.

Diaphragm valve, particularly for fluid media, has valve body, diaphragm and connecting piece for impinging diaphragm, where connecting piece is actuated by drive

The diaphragm valve (10) has a valve body (20), a diaphragm (22) and a connecting piece (24) for impinging the diaphragm. The connecting piece is actuated by a drive (14). The valve body and the diaphragm consists of plastic. Two seals are provided outside for the fluid media. The seals are independent of each other. The valve body and the diaphragm are welded with each other. The diaphragm is mechanically sealed between the drive or an intermediate piece (18) and the valve body. The seals are clamp or pinch and are arranged circularly.

Manual drive for operation of pipeline flow control valve using handwheel and threaded spindle for axial movement of lifting element for valve element

The manual drive has a handwheel (1) coupled with a threaded spindle (5), which is blocked from movement in the axial direction and an axially displaced lifting element (4) for the valve element, the drive housing (2) provided with one or more threaded stops (3a,3z), which are adjustable relative to the threaded spindle, for limiting the movement of the lifting element in one or both directions.

Mit einer den Auslasskanal dichtenden, flexiblen Membrane versehene Auslassdüse für unter Druck gesetztes Fluid

Rückschlagventil

EXHALATIONSVENTIL

MEMBRANVENTILGEHAEUSE.

Membrane fuer Absperrorgane und Verfahren zur Herstellung derselben

Membranventil fuer aggressive Medien

Diaphragm valves

... 439,701. Diaphragm valves. SAUNDERS INVENTIONS Ltd., 98, Beresford House, P.O. Box 6508, Main Street, Johannesburg, South Africa, and SAUNDERS, P. K., 5, Tettenhall Road, Wolverhampton. Aug. 23, 1934, No. 24293 [Class 135] In a diaphragm valve, the diaphragm 20 is provided with a resilient headed projection 19 which is held in an undercut recess 21 in the actuator mem ber. The projection 19 may be forced into the recess when it is made of rubber or similar material, or the actuator member may be made in two parts 12 hinged together and to the spindle 17 by a pin 16 so that by removing the cover 15 and actuating mechanism and moving the actuator outwardly from the cover the members 12 may be moved apart to insert the head 19 in the recesses thereof. The outside surfaces of the members 12 are shaped so that when withdrawn into the cover 15 they are caused to move together by contact with the cover to grip and compress the head 19. Specifications 362,084 and 434,665 are referred to.

VALVES OF THE DIAPHRAGM TYPE

... 1352518 Valves CHARLES WINN & CO Ltd 20 Oct 1971 [23 Oct 1970] 50364/70 Heading F2V A valve having a flexible diaphragm 9 clamped between the body and a head 10 secured to the body, is provided with an annular projection 12 on the head so as to limit the compression of the diaphragm when the head and body are screened together and a split collar 16 locating the actuating means 17, 8 and the centre of the diaphragm 9. The diaphragm may be coated with p.t.f.e. and the body made of stainless steel. Alternatively it may have a glass lining.

Improvements in and relating to fluid controlling valves

... 541,828. Diaphragm valves. SAUNDERS VALVE CO., Ltd., ROGERS, V. C., and BARR, D. P. Oct. 25, 1940, No. 15699. [Class 135] A diaphragm valve has the head 5 of an attachment stud 4 embedded in the diaphragm and has a ring 6 of greater diameter than that of the stud shank and surrounding the shank also embedded in the diaphragm. The diaphragm is of moulded construction built up of alternate layers of rubber sheet 1 and rubber impregnated fabric reinforcement 2. The boss is built up of five plys of thin rubber sheet and reinforcement. The ring 6 is arranged between two of the reinforcing plys and the top reinforcing ply is of considerably greater diameter than the others and extends down into the body of the diaphragm. Specification 434,665 is referred to.

Valve

A diaphragm-type valve uses a multiple annular metal diaphragm (36) welded about its inner periphery to a valve operating stem (34). The diaphragm is sealingly clamped about its outer periphery to the valve body and is also clamped about its inner periphery at a location spaced outwardly of the weld to prevent the weld from being subjected to flexure stresses during valve actuation. The outer periphery of the diaphragm (36 min ) may be welded to the valve body (10 min ) outwardly of the outer clamp. The actuating assembly (20) is arranged to produce non-rotary, reciprocatory movement of the operating stem (34) through a bonnet mounted rotary actuator (116). A stem tip seal (16) comprises a metallic seal ring (152) backed by a PTFE ring (158) and surrounded by a harder plastics ring (160) held captive by a sleeve (166).

A method of manufacturing a valve, and a valve manufactured by the method

Method of mounting silicon chips on metallic mounting surfaces

A method of mounting a semiconductor wafer (10) on a metallic mounting surface, particularly during manufacture of valves with macromechanical valve bodies (20), features the steps of applying a metallization (11) to at least one major surface of the semiconductor wafer, and thereafter soldering the thus-metallized major surface, either wholly or in localized surface areas, to the metallic mounting surface.

ONE WAY DISC VALVE

Diaphragm valve and diaphragm therefor

... 1,061,129. Valves. GRINNELL CORPORATION. May 5, 1965 [May 14, 1964], No. 18909/65. Heading F2V. A diaphragm valve, Figs. 2 to 6 (not shown), is of the type in which the diaphragm seats on a cylindrical side wall of the flow passage in closed position. The diaphragm is moulded in such a shape that a layer of flexible reinforcement fabric 11 embedded therein takes up a position whereby stressing of this reinforcement in use is reduced. The diaphragm has an outer rim 82 of greater width than thickness, joined to a solid central portion 74 by an intermediate portion 81 of which the opposite sides are parallel. In the undeformed shape as shown, the intermediate portion turns sharply away from the surface 78 of the central portion at a juncture 100, turns abruptly back upon itself at a bend spaced radially outwardly from the juncture 100, and turns abruptly into the rim 82 at a juncture 96. The reinforcement fabric has taken up a position substantially closer to the top surface of the intermediate ...

One way valve

A one-way valve for dispensing fluid assures, after the fluid has been dispensed, that any flow of contaminants into the source of the fluid is prevented. The one-way valve has a disc shaped valve body enclosed about the circumferential edge by an elastomeric membrane. Separate passageways conduct the fluid through the valve body with the fluid flowing from one passageway to the other between the circumferential edge and the elastomeric membrane. The valve body has a greater diameter than axial length.

Diaphragm valve

... 909,468. Valves. LAGUILHARRE, P. R., CIBOIT, J. J., and DELBERGUE, M. Oct. 26, 1960 [Nov. 7, 1959], No. 36829/60. Class 135. A valve comprises a diaphragm 7, Fig. 1, the edge of which is clamped by a screwed ring 4 between the bonnet 5 and the body 1 and the central part of which surrounds a member 8 having a groove 8a into which is folded the intermediate deformable part of the diaphragm. The top of the member 8 has ribs 10 which are located in complementary recesses in the bonnet 5 so providing supporting surfaces for the deformable part of the diaphragm. In another example, Fig. 8, the edge of the diaphragm is clamped between the bonnet 21 and the body 17 and the deformable part is folded into a groove 24a of the member 24. The diaphragm may be centrally thickened so as to constitute almost the entire body of the closure member.

Diaphragm valves

... 951,369. Valves. GRINNELL CORPORATION. Sept. 28, 1962 [Oct. 10, 1961], No. 36841/62. Heading F2V. The moving closure member of a diaphragm valve is formed by a combination of a moulded rubber or rubber-like backing 28, Fig. 5, and a moulded diaphragm 30 of inert plastic material e.g. P.T.F.E. the sides of which extending from the central thickened portion 60 are thin enough to permit of flexing when the valve is in the open position shown, wherein the central parts of the backing 28 and diaphragm 30 are spaced. In the closed position the latter are in complete contact, the backing 28 being stretched by the actuating mechanism and squeezing but not stretching the diaphragm 30 against the seat. In its unstressed condition the diaphragm 30, Fig. 1, extends across the flow path to contact the seat. The actuating mechanism includes a lost-motion connection in which a stud 56, Fig. 5, has its head embedded in the central thickened portion 60 of the diaphragm 30 ; the shank 62 extends through ...

Liquid feed device and valve system

A liquid feed device comprising a support substrate 13 and an elastic intermediate member 12 wherein the intermediate member is provided on the support substrate. A valve 31 and a flow channel 34 are formed by the intermediate member wherein the valve communicates with the flow channel. The valve includes an outer edge portion 31a and a gap 31b. The gap is provided between the outer edge portion and the support substrate. The valve is capable of opening and closing the gap by the outer edge portion being pressed and released such that the elastic intermediate member deforms. A configuration of the outer edge portion when projected onto a plane perpendicular to a direction of the flow channel is a protruding configuration having a curved surface. The configuration of the outer edge portion is symmetric with respect to the direction of the flow channel.

Improvements in or relating to diaphragm valves

... 1,036,970. Valves. BURGOMASTER OF HAGUE MUNICIPALITY. June 30, 1964 [July 8, 1963], No. 26922/64. Heading F2V. With the valve in the open position shown, the threaded part of the stem 10 is fully screwed into a sleeve 12 whereby the latter is lifted together with a rubber diaphragm that forms a chamber 24 in which is a plastic diaphragm 5 embodying one or more downstream apertures 23. Pressure water in the inlet 19 lifts the diaphragm 5 away from the weir 21 so that the water flows to the outlet 20. Any reversal of flow causes the diaphragm 5 to reseat. Upon rotating the stem 10 the rubber diaphragm 4 abuts and forces the plastic diaphragm 5 on to the weir 21to close the valve.

Fluid-flow regulator

A flow regulator is disclosed having a body with a central bore and a dished shaped surface with a tapered groove from the bore to the periphery, a diaphragm is fastened to the periphery of the body with a passage extending around the periphery providing fluid communication between the upstream side of the diaphragm and the tapered groove, a spring is provided to bias the diaphragm towards the upstream side, the diaphragm is inelastically deformable against the dish shaped surface solely in accordance with the resistance to deformation of the spring and the fluid pressure on the upstream side of diaphragm to regulate the volume flow of fluid through the central bore.

Improvements in and relating to valves

... 552,944. Diaphragm valves TRUMP, A. L., and SUTTON, F. Feb. 5, 1942, No. 1535. [Class 135] The attachment face of a diaphragm. 6 for controlling high vacua or dangerous fluids is formed with a peripheral groove 17 connected with the exterior of the valve body means being provided for producing a pressure differential between the groove and the passage through the valve body. As shown, the connection is made through an annular space 23 in the joint with a pipe line, but it may be made to the interior of the bonnet 7, and the latter connected to the exterior by a pipe 29. Specification 516,526 is referred to.

Improvements in and relating to diaphragm valves

... 516,526. Diaphragm valves. SAUNDERS VALVE CO., Ltd., and SAUNDERS, P. K. June 2, 1938, No. 16521. [Class 135] In a diaphragm valve of the " weir " type such as is described in Specifications 321,892, [Class 135], 362,084, 434,664, 434,665, 434,684, 439,701, and 442,790, a screw-threaded spindle 14 rotated by a handwheel 18 is endwise located in the valve bonnet 4 and co-operates with a nut 13 loosely mounted in the diaphragm actuator 9. The spindle is formed with a collar 16 which abuts a thrust ring 17 beneath the bonnet 4 and its upper part 15 which passes through the bonnet has the handwheel secured thereto by means of ' a pin 19. The 'actuator 9, which is prevented from rotating, is secured to the diaphragm by a threaded stud 6 embedded in the latter and is formed with fingers 8 at its lower end. The actuator is formed with a cavity 10 charged with lubricant and has also a transverse slot 12 in which the nut 13 is loosely mounted.

Improvements in valves for fluids

... 853,631. Diaphragm valves. FORTUNE, R. Feb. 18, 1957 [Feb. 17, 1956], No. 5370/57. Class 135. A diaphragm valve assembly comprises a valve body A with inlet and outlet passages 1 both leading to a flow chamber 3 having opposed opening surrounded by flanges 4, dish-shaped flexible diaphragms 8 clamped between the flanges 4 and matching flanges 5 on valve bonnets C, and a central bridge member B arranged transversely in the chamber 3 and provided with transverse seats or weirs 12 curved towards one another for the diaphragms 8. The diaphragms may be operated simultaneously or independently and when both are fully raised from their seats, two flow paths of equal flow capacity are provided between the inlet and outlet passages. Each diaphragm 8 has on its outer side a boss with a rigid insert 17 connected by a screw 34 to a compressor 22 prevented from rotating by horns 31 in grooves 66. A threaded stem 26 with a head or flange 27 is secured to each compressor 22 by a flanged retaining cap ...

Improvements in and relating to diaphragm valves

... 749,330. Diaphragm valves. SAUNDERS VALVE CO., Ltd. Jan. 29, 1954 [Jan. 29, 1953], No. 2785/54. Class 135. A facing for the diaphragm of a diaphragm valve consists of a thin layer of flexible material more inert than that of which the diaphragm is made, the facing being of a shape to fit against the diaphragm in the free condition of the latter and of a size to be clamped round the margin simultaneously with the diaphragm so that a vacuum seal is formed between the facing and the diaphragm when the two are clamped in position. As shown, a diaphragm 1 of rubber or similar elastomer with a fabric reinforcement 2 has a moulded-in screw stud 3 for attachment of the usual actuator and a flat margin 4 for clamping with the facing between the valve body and bonnet. The facing has a flat margin 6 and a centrally domed portion 5. The facing is conveniently of a fully-substituted halogenated hydrocarbon such as tetrafluoroethylene, or monochlorotrifluoroethylene. A layer of a plastic heat-resisting ...

DIAPHRAGM VALVE

Improvements with the valves.

Sophisticated tap.

THRUST PIECE FOR A DIAPHRAGM VALVE

MEHRWEGEVENTIL FÜR EIN PNEUMATISCHES ODER HYDRAULISCHES DRUCKMITTEL

CLEAN-CASH HEATING VALVE

CONTROL VALVE TO FLOW RATE REGULATION OF AIR

DIAPHRAGM VALVE

COMPOUND DIAPHRAGM

STOP VALVE FOR LIQUID

DIAPHRAGM FOR DIAPHRAGM VALVE

Dental treatment unit with a suction flow valve

Saugstromventil (10) für einen zahnärztlichen Behandlungsplatz mit einem Einzugsbereich (31), einem Abzugsbereich (32) und einer dazwischen angeordneten Ventilkammer, wobei in der Ventilkammer eine flexible Membran (41) vorgesehen ist, die einen Arbeitsraum (22) von der Ventilkammer abtrennt, wobei die Membran (41) in einem geschlossenen Zustand des Ventils (10) dichtend an einer Sperrkontur (33) der Ventilkammer anliegt und so die Verbindung zwischen dem Einzugs- und dem Abzugsbereich (31, 32) unterbricht. Die Membran (41) ist im geöffneten Zustand des Ventils (10) von der Sperrkontur (33) abgehoben und gibt eine Durchgangsöffnung zwischen dem Einzugs- und Abzugsbereich (31, 32) frei. Der Abzugsbereich (32) ist rohrförmig ausgebildet und weist eine abschnittsweise Verengung (51) des Innenquerschnitts auf. Der Arbeitsraum (22) und der Abzugsbereich (32) sind durch eine Steuerleitung (43) verbunden, die in den verengten Abschnitt (51) des Abzugsbereichs (32) mündet. Ein Aktor ist vorgesehen ...

DEVICE FOR THE MONITORING OF THE RIVER RATE

DIAPHRAGM SINGLE SOLENOID VALVE

LOGIC ELEMENT, IN PARTICULAR SINGLE PILOTED VALVE

VALVE ARRANGEMENT FOR ATTACHING A HEAT EXCHANGER OF A WARM WATER WITHDRAWAL DEVICE TO A LONG-DISTANCE HEATING NET

PRECISION VALVE UNIT.

DIAPHRAGM VALVE.

REGULATING VALVES.

DIAPHRAGM VALVE FROM PLASTIC AND ITS USE

VALVE ARRANGEMENT

HOUSING FOR A BRANCH VALVE

AVERAGE PRINTING RELIEF VALVE

GAS PRESSURE AUTOMATIC CONTROLLER

Diaphragm valve

LOGIC ELEMENT, IN PARTICULAR SINGLE PILOTED VALVE

Diaphragm valve

THRUST PIECE FOR A DIAPHRAGM VALVE

THRUST PIECE FOR A DIAPHRAGM VALVE

THRUST PIECE FOR A DIAPHRAGM VALVE

THRUST PIECE FOR A DIAPHRAGM VALVE

THRUST PIECE FOR A DIAPHRAGM VALVE

THRUST PIECE FOR A DIAPHRAGM VALVE

THRUST PIECE FOR A DIAPHRAGM VALVE

THRUST PIECE FOR A DIAPHRAGM VALVE

THRUST PIECE FOR A DIAPHRAGM VALVE

THRUST PIECE FOR A DIAPHRAGM VALVE

DIAPHRAGM VALVE WITH EMERGENCY SHUT-OFF CHARACTERISTIC

Anti-overflow pipe

An anti-overflow pipe, comprising a pipe wall (1) and a valve (2); on a plane perpendicular to the lengthwise direction of the pipe wall (1), the cross section of the inner side wall of the pipe wall (1) is oval, and the cross section of the outer side wall of the pipe wall (1) has a closed ring shape; in a plane where the long axis of the oval of the inner side wall and the lengthwise direction of the pipe wall (1) are located, the cross section of the valve (2) has a V-shaped structure and is connected to the inner side wall; and the valve (2) is provided with a slit (3) for unidirectional communication of fluid. The valve (2) having a V-shaped structure is provided on the pipe wall (1) having an oval cross section, so that fluid is sucked out under the action of a suction force, preventing waste of fluid, and scalding and wetting of a user, ensuring personal safety of a user. In addition, the valve (2) can achieve a buffering effect on the flowing of fluid, avoiding the hidden danger ...

Balanced activation force and bistable valve system and method

Some embodiments include a valve assembly with a metering seal including a main channel including regions with a first diameter and regions with a second diameter, where the first diameter is smaller than the second diameter. Some embodiments include a stem positioned in the metering seal extending from at least a first end of the metering seal to a second end of the metering seal. In some embodiments, the stem has a fluted section positioned between two non-fluted sections, where the diameter of stem in the fluted section is smaller than the diameter of the stem in the non-fluted sections. Some embodiments include a first and second flow channel extending across at least a partial width of the metering seal, where the first flow channel is positioned at the first end of the metering seal, and the second flow channel is positioned at the second end of the metering seal.

Diaphragm valve

Medium cracking pressure valve arrangement

Blood treatment cassette having a film valve and an elastic spacer, and blood treatment device

The invention relates to a blood treatment cassette (1000), comprising a cassette body designed as a hard part (1) and comprising a film (3), wherein the film (3) is connected to the hard part (1) and covers the hard part (1) at least in some sections, wherein the hard part (1) has at least one valve seat or valve section or a valve base (226) for a valve (288), wherein the valve (288) is designed to assume, in addition to a first, open position of the valve (288), in which the valve base (226) and a section of the film (3) arranged above the valve base do not touch each other, a second, closed position of the valve (288) when a force is applied to the section of the film (3), in which second position of the valve the valve base (226) and the section of the film (3) touch each other, wherein the blood treatment cassette (1000) has at least one spacer resiliently or elastically supported on the hard part (1) or produced integrally with the hard part, wherein the spacer is arranged in order ...

DIAPHGRAM VALVE GUIDING ASSEMBLY

... - 14 The invention relates to a diaphragm valve and in particular to a guiding assembly for a diaphragm element within the valve and to a float type valve and in particular to a sealing arrangement for the valve. The guiding assembly of the invention comprises a guide pin and a guide bush of harder material than the soft diaphragm to reduce friction as the diaphragm moves up and down the pin to close and open the valve. The sealing arrangement of the invention comprises a rim about a hole in the valve body where the float arm seal opens and closes the valve for reducing or eliminating potential water hammer issues during wave action.

DIAPHRAM VALVE PLASTIC LINER

AIR ADMITTANCE VALVE

An air admittance valve configured when subjected to a negative pressure condition to vent a pipe system to an ambient environment. In general, the air admittance valve includes a main body, inner and outer valve seats, a flexible sealing element, and a lid. The inner and outer valve seats define at least one vent opening between valve seats that is configured, when open, to communicate with the ambient environment. The flexible sealing element is devoid of a rigidifying structure, is configured to move to and from a closed position and an open position, and defines an outer perimeter surface, an inner perimeter surface, and opposite top and bottom surfaces extending between the outer and inner perimeter surfaces. At least one of the lid or the main body further comprises one or more guiding elements that define one or more guiding surfaces configured to guide the sealing element to and from the closed position and the open position.

METHOD AND APPARATUS TO MONITOR DIAPHRAGM CONDITION

Methods and apparatus are disclosed that monitor a diaphragm condition. I n one example, a fluid control device includes a body (105) and a fluid pass age through the body, the fluid passage including an inlet (110) and an outl et (115). The example fluid control device also includes a diaphragm (135) w ithin the fluid control device to control the flow of fluid through the pass age, and a sensor (150) coupled to the diaphragm to monitor a condition asso ciated with wear of the diaphragm ...

INFLATABLE DEVICE WITH FLUID CONTROLLER AND SELF-SEALING VALVE

A self-sealing valve comprises a valve housing having a fluid conduit, a valve seat, and a retaining member, the valve housing being configured to pass fluid through the fluid conduit, and a flexible diaphragm comprising a flexible material having resiliency, wherein the retaining member and the flexible diaphragm are configured so that the retaining member retains a portion of the flexible diaphragm so as to use the resiliency of the flexible material to bias the flexible diaphragm against the valve seat to a closed position of the self-sealing valve to provide a self- seal of the fluid conduit, and to facilitate movement of the flexible diaphragm under a fluid bias against a first side of the flexible diaphragm in a first direction away from the valve seat to an open position, and wherein the retaining member and the flexible diaphragm are configured so that the self-sealing valve can be contacted to move a portion of the flexible diaphragm away from the valve seat to the open position ...

ANTI-OVERFLOW PIPE

An anti-overflow pipe, comprising a pipe wall (1) and a valve (2); on a plane perpendicular to the lengthwise direction of the pipe wall (1), the cross section of the inner side wall of the pipe wall (1) is oval, and the cross section of the outer side wall of the pipe wall (1) has a closed ring shape; in a plane where the long axis of the oval of the inner side wall and the lengthwise direction of the pipe wall (1) are located, the cross section of the valve (2) has a V-shaped structure and is connected to the inner side wall; and the valve (2) is provided with a slit (3) for unidirectional communication of fluid. The valve (2) having a V-shaped structure is provided on the pipe wall (1) having an oval cross section, so that fluid is sucked out under the action of a suction force, preventing waste of fluid, and scalding and wetting of a user, ensuring personal safety of a user. In addition, the valve (2) can achieve a buffering effect on the flowing of fluid, avoiding the hidden danger ...

DIAPHRAGM VALVES

DIAPHRAGM VALVES A diaphragm valve comprises a valve sub-assembly(1) including a diaphragm (5) secured to a valve body (2) by a clamping member (10). The clamping member (10) is provided with screw threads (16) on to which a drive assembly is screwed to complete the valve. The drive assembly may be a piston and cylinder drive assembly or a handwheel drive assembly. An indicator module to provide an indication of whether the valve is open or closed can be incorporated between the clamping member(10) and the drive assembly. The drive assembly can be removed for service or interchanged without disturbing the fluid seal between the diaphragm (5) and the valve body (2).

HIGH-FLOW FLUID VALVE BLOCK

An illustrative valve block includes a pressure plate, a fluid transfer block, and a diaphragm. The pressure plate includes a pressure channel configured to receive a pressurized first fluid and a recess in a surface of the pressure plate. The pressure channel and the recess are fluidly connected. The fluid transfer block includes an inlet connection configured to receive a second fluid and an outlet connection. The fluid transfer block also includes a plurality of valve inlet bores each fluidly connected to the inlet connection. The plurality of valve inlet bores are distributed along at least part of a first circular shape. The fluid transfer block further includes a plurality of valve outlet bores each fluidly connected to the outlet connection.

DISC TYPE CHECK VALVE

A check valve (10) including a housing formed by a base portion (12) and a cap portion (14) positioned in telescoping relation with each other. A disc shaped valve member (20) is positioned within the housing and is defined by opposing first and second planar sides. The valve member includes a spherical portion (82) located centrally thereon and which is captured between first and second valve supports (30, 66) supported on the base portion and cap portion, respectively. The valve supports hold the valve member in engagement with a valve seat (40) in response to a fluid pressure applied at a fluid inlet (16) in the base portion to permit forward fluid flow while preventing fluid flow in the reverse direction.

SANITARY DRAIN VALVE DESIGN

A valve for sampling a process from a tank or conduit includes an internal cavity in communication with at least one inlet and an outlet. A valve actuating rod includes a sealing tip attached to one end thereof. The valve actuating rod is movable to open and close the inlet to the internal cavity. Furthermore, a seal is provided to isolate the valve actuating rod and the outside environment from the process. The seal is formed on the process side of the bottom wall of the internal cavity in order to ensure that the process material, cleaning material, steam, etc. drains completely out of the internal cavity of the valve.

ASEPTIC FLOW CONTROL VALVE WITH OUTSIDE DIAMETER VALVE CLOSURE

An aseptic diaphragm valve in which a valve seat (37) is formed by a groove including a concave surface of engagement that positioned along an outer diameter of an upper end of an inlet tube (32), and a resilient valve member portion (41) that is annular in extent with a convex surface that moves into the groove to contact the concave surface (37) around the outer diameter of the inlet tube (32) to close the valve. The valve member portion (41) has at least a coating of polytetraf luoroethylene (47) or equivalent material.

Structure for Sealing an Inner Peripheral Portion of a Metallic Diaphragm

STRUCTURE FOR SEALING AN INNER PERIPHERAL PORTION OF A METALLIC DIAPHRAGM

An inner peripheral portion of a metallic diaphragm (11) having a mounting hole (11a) at a central portion is held between a metallic welding fitting (8, 8') and a metallic holding member (6, 17), each respectively having an annular flat portion (8a, 6a, 17a) to contact an inner peripheral portion. The inner peripheral portion of the metallic diaphragm and the portions of the metallic welding fitting and the metallic holding member contacting the inner peripheral portion of the foregoing metallic diaphragm are welded at W', W'' along entire peripheries thereof in order to secure these three components together as one body.

FLUSH VALVE REFILL RING

A flush valve has a body with an inlet and an outlet and a passage connect ed therebetween. There is a valve seat at one end of the passage and a valve assembly is positioned to close upon the valve seat. The valve assembly includes a diaphragm positioned to control the flow of water through the passage, a guide member attached to the underside of the diaphragm and positioned within the passage, and a refill ring attach ed to the exterior of the guide member. The refill ring has a discontinuous outer wall which includes a plurality of spaced wall segments extending toward the flush valve passage a nd providing yielding frictional resistance to movement of the valve assembly relative to the passage to thereby dampen vibrations of the valve assembly during closing portions of t he flush valve operating cycle.

METAL DIAPHRAGM TYPE VALVE

A metal diaphragm type valve includes a valve seat holder supported from a rotatable valve stem, a metal diaphragm and a deflection limiter. The valve seat holder has a shaft extending upwardly through central openings in the diaphragm and the deflection limiter. A diaphragm support step having an annular flat surface joining an arcuate shoulder is provided around the shaft of the valve seat holder and the inner peripheral edge of the diaphragm rests on the flat surface. The deflection limiter has a flat bottom surface facing the top surface of the diaphragm and an arcuate surface extends radially outwardly from the flat bottom surface. The deflection limiter, diaphragm and valve seat holder are welded together by a weld extending through the flat bottom portion of the deflection limiter and the inner peripheral edge of the diaphragm to the flat surface on the seat holder, the weld forming an air-tight seal between the valve chamber and the passage for the shaft. The radial dimensions of ...

Dispositif économiseur, permettant d'assurer un débit maximum de gaz approprié à la capacité de combustion des appareils d'utilisation.

MULTIPLE USE STRETCHING AND NON-PENETRATING BLOOD CONTROL VALVES

The current invention relates to infusion devices, specifically to peripheral intravenous (IV) catheters. In particular, the invention relates to peripheral IV catheter assemblies having features to enable selective and reversible activation of fluid flow through the catheter assembly. Some implementations of the present invention include various configurations of septum valves having a barrier surface that is stressed to bias the barrier surface and provide a pathway through the septum valve. 1. A septum , comprising a body having a first end comprising an opening and a second end forming a barrier , the barrier being capable of being deformed from a relaxed position to a stressed position , wherein the stressed position biases the barrier to provide a pathway through the septum.2. The septum of claim 1 , wherein the barrier further comprises a slit having a closed configuration and an opened configuration claim 1 , wherein the slit comprises the closed configuration when the barrier is in the relaxed position claim 1 , and the slit comprises the opened configuration when the barrier is in the stressed position.3. The septum of claim 1 , wherein the barrier comprises a distal end of the septum.4. The septum of claim 1 , wherein the barrier comprises a proximal end of the septum.5. The septum of claim 1 , wherein the barrier is mechanically deformed from the relaxed position to the stressed position.6. The septum of claim 2 , wherein the closed position is fluid tight.7. The septum of claim 1 , wherein the septum comprises an elastic material.8. The septum of claim 1 , wherein the septum is resilient.9. The septum of claim 1 , further comprising a septum actuator coupled to the barrier claim 1 , the septum actuator and the septum forming a single claim 1 , integrated component.10. A system for controlling fluid flow in a catheter assembly claim 1 , comprising:an intravenous catheter assembly having a catheter adapter comprising an inner lumen;a septum disposed ...

FLOW SHUT-OFF VALVE DEVICE

A valve assembly having a valve-seal on a valve member that moves between an open and a closed position within a valve support housing for controlling fluid flow, particularly for use as a shut-off valve. In many embodiments, advancing the valve member sealingly engages the valve-seal with a valve seating area of the housing to close the valve and shut-off fluid flow through the housing, while retracting the valve member moves the valve-seal away from the seating area to allow fluid flow around the valve-seal and through the valve-seating area. In many embodiments, the valve member includes a proximal handle and angled ramp that engage with a helical ramp of the housing to translate rotation of the handle into axial movement of the member between open and closed positions. 1. A shut-off valve assembly , comprising:a valve housing having a fluid flow conduit extending therethrough and a valve-seating surface in fluid communication with the valve-seating surface;a valve-seal sealingly engageable with the valve seating surface; anda valve member coupled to the valve-seal, the valve member having an open position and a closed position,wherein, in the closed position, the valve-seal is sealingly engaged with the valve-seating area and, in the open position, the valve-seal is positioned a distance away from the valve-seating surface.2. A shut-off valve assembly as in claim 1 , wherein the valve member is axially movable such that when in the open position claim 1 , the valve-seal is positioned an axial distance away from the valve-seating surface.3. A shut-off valve assembly as in claim 2 , wherein the valve-seal comprises a bulbous feature disposed near the distal end of the valve member.4. A shut-off valve assembly as in claim 3 , wherein the bulbous feature comprises a spherical or semi-spherical surface.5. A shut-off valve assembly as in claim 4 , wherein the spherical or semi-spherical surface is circumferentially engageable with the valve-seating surface.6. A shut- ...

TWO-WAY VALVE

A two-way valve includes a valve body made of a resilient member and connected to a lower end of a shaft. The valve body is made up from a main body portion having an axial member connected to the shaft, and a thin film skirt portion formed on an outer circumferential side of the main body portion. An outer edge of the skirt portion is sandwiched and gripped between a small diameter part of a housing and a connector of a body. Further, lips that project in a downward direction are formed in a central portion of the main body portion. The lips are seated on a top portion of a partition wall in the body, so that the two-way valve is placed in a valve-closed state. 1. A two-way valve comprising:a body including a pair of first and second ports through which a pressure fluid is supplied and discharged, flow passages connected to the first port and the second port, and a partition member formed midway in the flow passages and separating the first port and the second port;a diaphragm valve having a main body portion disposed displaceably in the body and which is seated on a valve seat formed on an end of the partition member, and a skirt portion formed as a thin film on an outer circumferential side of the main body portion and which is retained by the body, wherein communication between the flow passages is interrupted by seating of the main body portion on the valve seat; anda protective body made of a resilient member, which alleviates a load applied to the skirt portion by being disposed in intimate contact with the skirt portion,wherein the diaphragm valve is connected to one end of a shaft disposed displaceably in an axial direction, and a spring that urges the diaphragm valve toward the valve seat is disposed on a piston connected to another end of the shaft, and the main body portion includes, on a bottom portion thereof facing the valve seat, lips that cover a portion of the partition member when seated on the valve seat.2. The two-way valve according to claim 1 ...

DIAPHRAGM VALVE

Provided is a diaphragm valve that can improve durability when the diaphragm valve is downsized. In a pressing adaptor, a whole lower surface thereof has a taper shape at a predetermined inclination angle. A bottom surface of a depression of a body has a circular flat portion and a depression that is continued to an outer circumference of the flat portion and is depressed with respect to the flat portion. In a diaphragm, in a state where a fluid inflow channel is opened, an upper surface of an outer circumferential edge portion comes into surface contact with the taper-shaped lower surface of the pressing adaptor, and a lower surface of the outer circumferential edge portion comes into line contact with the outer circumference of the flat portion of the bottom surface of the depression of the body. 1. A diaphragm valve comprising:a body provided with a fluid channel and a depression opening upward;a seat arranged in a circumferential edge of the fluid channel formed in the body;an elastically-deformable, spherical shell-shaped diaphragm that opens and closes the fluid channel by being pressed against and separated from the seat;a pressing adaptor that retains an outer circumferential edge portion of the diaphragm between a bottom surface of the depression of the body and itself;a diaphragm presser that presses a central portion of the diaphragm; andup and down movement means for moving up and down the diaphragm presser, whereinin the pressing adaptor, a whole lower surface thereof has a taper shape at a predetermined inclination angle,the bottom surface of the depression of the body has a circular flat portion, and a depression that is continued to an outer circumference of the flat portion and is depressed with respect to the flat portion, andin the diaphragm, in a state where the fluid channel is opened, an upper surface of the outer circumferential edge portion comes into surface contact with the taper-shaped lower surface of the pressing adaptor, and a lower ...

Fluid Transfer Device

A fluid transfer device for transferring fluid into or out of a fluid vessel, such as a tank, and is particularly useful in transferring fluids with particulates or high viscosity in a substantially aseptic, hygienic, or sterile manner. The device has a body with an elongate passage extending through the body. The body has a proximal end and a distal end. A longitudinally displaceable shaft is disposed in and extends along the passage in the body. A plug sealing the passage is at a first location. A diaphragm sealing the passage is at a second location intermediate the plug and the distal end of the passage. The shaft extends through and is secured to the diaphragm. A fluid transfer opening is located in the passage between the diaphragm and the plug. Longitudinal displacement of the shaft causes the fluid transfer opening to be in fluid communication with a fluid vessel, the diaphragm stretching to accommodate the displacement of the shaft while maintaining an aseptic seal of the passage. 1. A fluid transfer device comprising:a body;an elongate passage extending through the body and having a proximal end and a distal end;a longitudinally displaceable shaft disposed in and extending along the passage, the shaft having a proximal end and distal end and having a first position displaced toward the proximal end of the passage and a second position displaced toward the distal end of the passage, the shaft axially biased toward the proximal end of the passage;a plug attached to the proximal end of the shaft and sealing the passage at the proximal end thereof when the shaft is in its first position;a diaphragm sealing the passage at a location intermediate the plug and the distal end of the passage;the shaft extending through and being sealingly secured to the diaphragm;a fluid transfer opening in the passage between the plug and the diaphragm;wherein longitudinal displacement of the shaft towards its second position moves the plug to open the passage, the diaphragm ...

DIAPHRAGM VALVE HAVING SPHERICALLY-SHAPED VALVE BODY AND DIAPHRAGM SEALING SURFACE

Apparatus, including a diaphragm valve, is provided featuring a valve body configured with at least one spherically-shaped valve body sealing surface and a diaphragm configured with at least one diaphragm sealing surface, and also configured to respond to an applied force and provide sealing contact between the at least one diaphragm sealing surface and the at least one spherically-shaped valve body sealing surface. The valve body is configured with a spherical weir having a spherical weir sealing surface configured with polish marks substantially perpendicular to a weir leak path. The valve body also has a circular rim having a spherically-shaped peripheral sealing surface configured with polish marks, many of which are substantially perpendicular to a shell leak path. 1. Apparatus , including a weft-type diaphragm valve , comprising:a valve body configured with at least one spherically-shaped valve body sealing surface: anda diaphragm configured with at least one diaphragm sealing surface, and also configured to respond to an applied force and provide sealing contact between the at least one diaphragm sealing surface and the at least one spherically-shaped valve body sealing surface.2. Apparatus according to claim 1 , wherein the valve body is configured with a spherical weir having a spherically-shaped weir sealing surface as the at least one spherically-shaped valve body sealing surface.3. Apparatus according to claim 2 , wherein the spherically-shaped weir sealing surface is configured with polish marks substantially perpendicular to a weir leak path.4. Apparatus according to claim 1 , wherein the valve body is configured with a circular rim having a spherically-shaped peripheral sealing surface as the at least one spherically-shaped valve body sealing surface.5. Apparatus according to claim 4 , wherein the spherically-shaped peripheral sealing surface is configured with polish marks claim 4 , many of which are substantially perpendicular to a shell leak path.6 ...

DIAPHRAGM VALVE

A fluid inflow passage is made up of an inner communication portion having an upper end opening that leads to a center portion of a bottom surface of a recess in a body and a lower end surface that is closed and an outer communication portion having one end that leads to the inner communication portion and the other end that forms a fluid inlet. The inner communication portion has a column-like protruding portion provided on the lower end surface so as to form a column-like non-passage portion in the inner communication portion and thereby forms a cylindrical-hollow passage. It thus becomes possible to provide a diaphragm valve with which a Cv value can be increased without increasing an outer shape. 2. The diaphragm valve according to claim 1 , wherein:an upper surface of the column-like protruding portion is a diaphragm support surface that prevents the diaphragm from undergoing a deflection excessively. The present invention relates to a diaphragm valve.There is a diaphragm valve using a diaphragm as a valve element and such a diaphragm valve is described, for example, in JP-A-2006-90386.shows a major portion of a diaphragm valve in the related art. Referring to , a diaphragm valve includes a body provided with a fluid inflow passage , a fluid outflow passage , and a recess opening upward, a ring-like sheet disposed on a bottom surface of the recess in the body , a diaphragm that opens and closes the fluid inflow passage , respectively, when pressed against and spaced apart from the sheet , an inlet-side joint portion , and an outlet-side joint portion .The fluid inflow passage has an L-shaped vertical cross section and is made up of a column-like inner communication portion having an upper end opening that leads to a center portion of the bottom surface of the recess in the body and a column-like outer communication portion having one end that leads to the inner communication portion and the other end that forms a fluid inlet.For the diaphragm valve in the ...

FLUID CONTROL VALVE SYSTEM AND METHODS

A diaphragm-type control valve having a diaphragm and a valve body is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. The diaphragm element and a port in the body together form an intermediate chamber that eliminates the need for a check-valve downstream of the valve. In one preferred embodiment, an inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member defining a groove in communication with the port. A diaphragm member having upper and lower surfaces is disposed within the chamber. The lower surface preferably includes a pair of spaced apart elongated members defining a channel therebetween. The diaphragm member engages the seat member placing the channel in communication with the groove to define an air seat in communication with the port. 1. A fluid control valve comprising:a valve body having a first inner surface defining a chamber having a first axis and a second axis substantially perpendicular to the first axis, the chamber including an inlet and an outlet in communication with the chamber and substantially aligned along the first axis, the inner surface including an elongated seat member substantially aligned along the second axis, the seat member defining a groove, a portion of the body further defining a port in communication with the groove; anda diaphragm member disposed within the chamber for controlling communication between the inlet and the outlet, the diaphragm member having an upper surface and a lower surface, the lower surface including at least a pair of spaced apart elongated members defining a channel therebetween, the diaphragm member having a first position permitting communication between the inlet and the outlet and a second position wherein the elongated members engage the seat member such that the channel is in communication with the groove to define an intermediate chamber in ...

FLUID CONTROL VALVE

In a fluid control valve, a valve part houses a diaphragm in a valve body including a valve seat, first and second ports, and a drive part includes a piston dividing a piston chamber in a cylinder body into first and second chambers, and a rubber sealing member attached to the outer peripheral surface of the piston. A constriction is provided between the piston chamber and the surface of the cylinder body contacting the valve body. The cylinder body is formed with an exhaust port communicating with the first chamber, an operation port communicating with the second chamber, and a purge port communicating with a fluid non-contact chamber. The piston is formed with a flow path which enables communication between the first chamber and the fluid non-contact chamber. Accordingly, a temperature increase of the drive part can be restricted, and degradation of internal parts can be prevented. 1. A fluid control valve including a valve section for controlling fluid and a drive section for imparting a drive force to the valve section , wherein a valve body formed with a first port and a second port;', 'a valve seat provided between the first port and the second port; and', 'a diaphragm movable into or out of contact with the valve seat, the drive section includes:', 'a cylinder body provided with a piston chamber and clamping the diaphragm with respect to the valve body;', 'a piston slidably mounted in the piston chamber to divide the piston chamber into a first chamber and a second chamber and connected to the diaphragm; and', 'a rubber sealing member mounted on sliding-contact surfaces of the piston and the cylinder body,, 'the valve section includesthe cylinder body includes a constriction to reduce a cross sectional area of a portion between the piston chamber and a surface contacting the valve body,the cylinder body is formed with an air exhaust port communicating with the first chamber, an operation port communicating with the second chamber to supply operation air to ...

SYSTEMS, APPARATUS, AND METHODS FOR FILTERING AIR FROM A FLUID LINE

In some embodiments, a housing can define a reservoir. A lower cap can be coupled to the housing and define an outlet, and an upper cap can be coupled to the housing and can define an inlet. The upper cap can include an extending portion extending laterally a distance beyond an outermost extending portion of the lower cap relative to a central axis of the housing such that, when the lower cap and the extending portion of the upper cap contact a horizontal surface, the central axis of the housing is transverse to the surface and a sealing member is configured to sealingly engage a sealing surface of a valve seat prior to a liquid fluid level within a reservoir decreasing below a minimum threshold fluid level. 1. An apparatus , comprising:a housing including a cylindrical sidewall, the cylindrical sidewall including an inner surface defining a reservoir and an outer surface, the housing having a first end and a second end, the cylindrical sidewall configured to be deformed between an undeformed and a deformed configuration;a first cap defining an inlet, the first cap coupled to the first end of the housing;a second cap defining an outlet, the second cap coupled to the second end of the housing;a deformable valve seat having a first end, a second end, and a sealing surface, the valve seat defining a through-hole from the first end to the second end, the through-hole having a central axis, the second end coupled to the second cap such that the through-hole is in fluid communication with the outlet of the second cap; anda sealing member configured to float at a liquid fluid level within the reservoir and to seal with the sealing surface of the valve seat prior to the liquid fluid level within the reservoir decreasing below a minimum threshold fluid level, the sealing member configured to transition from a sealed configuration in which the seal is engaged with the sealing surface to an unsealed configuration in which the sealing member floats at the liquid fluid level ...

Fluid control valve system and methods

A diaphragm-type control valve ( 10 ) having a valve body ( 12 ) holding a diaphragm ( 100 ) and an expansion member ( 150 ) is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. An inner surface of the valve body defines a chamber having an inlet ( 14 ) and an outlet ( 16 ) in communication with the chamber, and an elongated seat member ( 26 ). The expansion member ( 150 ) biases the diaphragm ( 100 ) to a seated position within the valve.

Three position check valves for use with vacuum jammed film envelopes

The present disclosure relates to a three-function check valve that in one embodiment is attached to a vacuum bladder full of media (foam beads). This three-function check valve is comprised of a selection piece, silicone membrane, and a mounting base all in one sub-assembly. Furthermore, this valve has three positions with three distinct functions. These functions are to create an airtight seal, allow for free flow in and out of the bladder, and restrict flow of air based on a differential pressure. 1. A check valve device comprising:a selection piece, a flexible membrane, and a mounting base, wherein the mounting base includes projections to prevent the internal jamming media from blocking the flow of air or other fluid through the check valve device, wherein the base defines a plurality of small holes and at least one larger hole in the center of the base, wherein the base also defines a plurality of semicircle grooves running the height of the wall of the base, wherein the base includes circular ridge,wherein the selection piece defines a plurality of detent positions of a stepped track, the plurality of detent positions of the stepped track configured to engage circular ridge to lock selection piece into three different positions relative to the base, wherein twisting the selection piece causes the circular ridge of the base to move within the stepped track, where the selection piece translates relative to the base until the circular ridge engages at least one of the plurality of detent positions,wherein the flexible membrane includes a wide, thin circular piece, a smaller cylindrical piece centered on the thin circular piece, and a short, trapezoidal top, wherein the smaller cylindrical piece is sized to fit within the center hole, wherein the wide, thin circular piece functions to aid in creating an airtight seal when the check valve device is in one of the three different positions.2. The check valve device of wherein the check valve device provides three ...

CAPSULE FOR A VALVE AND VALVE

The invention relates to a capsule for a valve as well as to a valve comprising such a capsule. The task of the present invention is to provide a valve in which tight tolerances for construction can be achieved and the assembly of the valve is simplified. According to the present invention the above task is solved by a capsule () for a valve comprising at least one diaphragm (), a valve seat (), a capsule inlet () and a capsule outlet (). The valve seat () is openable and closable to permit or stop a fluid flow from the capsule inlet () to the capsule outlet (). The above task is also solved by a capsule () for a valve that comprises at least one diaphragm (), a valve seat (), a capsule inlet () and a capsule outlet (), wherein the capsule () is structured and arranged to control the position of a pilot valve element external to the capsule (). The above task is also solved by a valve () comprising a valve housing (), wherein a capsule () of the above kind is arranged in the valve housing (). 117-. (canceled)18. A capsule for a valve wherein the capsule comprises at least one diaphragm , a valve seat , a capsule inlet , a capsule outlet , and a spring which is arranged in the capsule to load the valve element , wherein the spring is arranged on the side of the at least one diaphragm facing the capsule outlet.19. (canceled)20. The capsule according to wherein the capsule comprises a capsule top and a capsule bottom claim 18 , wherein at least one diaphragm is fixed at a radially outer end of the diaphragm between the capsule top and the capsule bottom.21. The capsule according to claim 18 , wherein the at least one diaphragm also has the function of a valve element to open or close the valve seat.22. The capsule according to claim 18 , wherein a valve element is arranged in the capsule in addition to the at least one diaphragm to open or close the valve seat.23. The capsule according to claim 18 , wherein the capsule comprises at least one thrust pad arranged at a ...

Diaphragm and method for the production thereof

A diaphragm is described, wherein the diaphragm includes at least two layers, wherein at least one of the two layers is made of an elastomer, and wherein an electric circuit is provided between the two layers. In at least one of the two layers of the diaphragm, a conductive insert is provided, by means of which an electrical connection of the electric circuit to or from the outside of the diaphragm can be achieved.

FLUID CONTROL VALVE

A fluid control valve includes: a valve housing in which a flow path having gas inlet and outlet is formed; a drive device attached to the valve housing; a valve shaft connected to an output shaft of the drive device and moving in an axial direction; and a valve body attached so as to radially extend to an axis of the valve shaft, and opening and closing the flow path by being moved with the valve shaft so that one side surface moves away from or comes into contact with a valve seat formed in the flow path, wherein the valve housing is attached to an attachment target member so that the valve shaft is tilted, and the valve body includes a wall portion corresponding to a portion where a liquid inside the flow path collects due to its weight, within a portion having the valve seat, and formed along an edge portion on the other side surface opposite to one side surface of the valve body. 1. A fluid control valve comprising:a valve housing in which a flow path having a fluid inlet and a fluid outlet is formed;a drive device attached to the valve housing;a valve shaft which is connected to an output shaft of the drive device and moves in an axial direction in the housing valve; anda valve body which is attached so as to radially extend to an axis of the valve shaft, and which opens and closes the flow path by being moved with the valve shaft so that one side surface moves away from or comes into contact with a valve seat formed in the flow path of the valve housing,wherein the valve housing is attached to an attachment target member so that the valve shaft is tilted to a horizontal plane, andwherein the valve body includes a wall portion which corresponds to a portion where a liquid inside the flow path collects due to the weight thereof, within a portion having the valve seat in the flow path of the valve housing, and which is formed along an edge portion on the other side surface opposite to one side surface of the valve body.2. The fluid control valve according to ...

PRELOADED PIEZO ACTUATOR AND GAS VALVE EMPLOYING THE ACTUATOR

A valve arrangement for controlling gas flow. A gas block includes a gas inlet, a gas outlet, and a gas cavity fluidly connecting the gas inlet to the gas outlet. A diaphragm is configured for controlling gas flow between the gas inlet and the gas outlet. An actuator is configured to vary the position of the diaphragm so as to control the gas flow. The actuator comprises a tubular housing; a plunger positioned inside the housing and having an actuating extension extending outside of the housing and coupled to the diaphragm, the plunger configured to be slidable inside the housing; a piezoelectric body positioned inside the plunger; and a pre-loader applying force to the plunger so as to press the plunger against the piezoelectric body.

DIAPHRAGM VALVE

A diaphragm valve having a movable diaphragm () configured as a closure element has a valve housing () and an actuator (), the diaphragm () being clamped between a flange () of the valve housing and a base () of the actuator () and being provided with a first identification means () in which data which are adapted to be read out wirelessly are stored. A further identification means () is also fastened to the flange () and/or the base (). The read-out surfaces of the further identification means () are substantially at right angles to the read-out surface of the identification means () on the diaphragm () 120682018610832. A diaphragm valve comprising a movable diaphragm () configured as a closure element , a valve housing () and an actuator () , the diaphragm () being clamped between a flange () of the valve housing () and a base () of the actuator () and being provided with a first identification means () in which data are stored which are adapted to be read out wirelessly , wherein{'b': 32', '48', '45', '32, 'the first identification means () has a read-out surface () at which a reading device () is adapted to be positioned to read out data from the first identification means (), wherein'} [{'b': 50', '18, 'a further identification means () is provided on the flange (), in which data adapted to be read out wirelessly are stored, and/or'}, {'b': 56', '10, 'a further identification means () is provided on the base (), in which data adapted to be read out wirelessly are stored,'}, {'b': 50', '56', '48', '32, 'and wherein the further identification means (, ) has/have a read-out surface extending substantially perpendicularly to the read-out surface () of the first identification means ().'}], 'additionally'}2202632. The diaphragm valve according to claim 1 , characterized in that the diaphragm () has a tab () which projects laterally outwards and at which the first identification means () is provided.326283028483228. The diaphragm valve according to claim 2 , ...

DIAPHRAGM FOR FLUID CONTROL VALVE AND METHODS OF FLUID CONTROL

A fluid control valve includes a cover portion and a body portion. Inner surfaces of the cover and the body portion define a chamber that includes an inlet and an outlet in communication with the chamber. The fluid control valve also includes a diaphragm disposed between the cover portion and the body portion. The diaphragm has a flexible member that is disposed within the chamber for controlling communication between the inlet and the outlet. The upper surface of the flexible member has a substantially smooth wall portion. The flexible member has an inverted position in which the upper surface conforms to at least a portion of the inner surface of the cover portion to define a passageway that permits communication between the inlet and the outlet. The diaphragm is configured such that the lower surface of the flexible member and a seat member on the body portion have corresponding radius of curvatures such that the flexible member conforms to and seals against the seat member when the flexible member is not in the inverted position. 1. A fluid control valve comprising:a cover portion with a first inner surface;a body portion with a second inner surface, the body portion including an elongated seat member substantially aligned along a plane perpendicular to a flow axis of the fluid control valve, the first and second inner surfaces defining a chamber when the cover portion and the body portion are joined, the chamber including an inlet and an outlet in communication with the chamber; anda diaphragm disposed between the cover portion and the body portion, the diaphragm including a flexible member disposed in the chamber and having a first position in which the flexible member is inverted to define a passageway to permit communication between the inlet and the outlet and a second position to prevent fluid communication between the inlet and the outlet,wherein an upper surface of the flexible member has a substantially smooth wall portion and, when the flexible member ...

Fluid Routing Device Having A Shape Memory Alloy Member

The subject invention provides a fluid routing device for directing the transportation of a fluid including a housing defining first and second corridors selectively fluidly coupled to one another, and a valve assembly capable of alternating between an open configuration fluidly coupling the first and second corridors and a closed configuration fluidly separating the first and second corridors. A shape memory alloy member alternates between a de-energized state and an energized state. A link is pivotably mounted to the housing and is coupled between the valve assembly and the shape memory alloy member. The link pivots between a first position when the shape memory alloy member is in the de-energized state and a second position when the shape memory alloy member is in the energized state which alternates the valve assembly between the closed configuration and the open configuration for selectively fluidly coupling the first and second corridors. 1. A fluid routing device for directing the transportation of a fluid ,said fluid routing device comprising:a housing defining an interior and further defining a first corridor and a second corridor selectively fluidly coupled to one another;a valve assembly disposed in said interior and capable of alternating between an open configuration and a closed configuration with said valve assembly fluidly coupling said first and second corridors to one another when in said open configuration and said valve assembly fluidly separating said first and second corridors from one another when in said closed configuration;a shape memory alloy member mounted to said housing within said interior and extending toward said valve assembly, said shape memory alloy member alternating between a first length in a de-energized state and a second length in an energized state; anda link disposed within said interior and pivotably mounted to said housing with said link coupled between said valve assembly and said shape memory alloy member, said link ...

METHOD OF OPERATING DRIPPAGE PREVENTION SYSTEM

A method of preventing drippage in a fluid dispensing system. The fluid dispensing system includes a first automatic control valve (ACV), an input of the first ACV connected to fluid-source of fluid, the first ACV having positions ranging from fully closed to fully open, and a second ACV, an input of the second ACV being connected to an output of the first ACV, and an output of the second ACV being connected to a nozzle, the second ACV having positions ranging from fully closed to fully open. The method includes generating a first proxy signal representing at least a first indirect measure of a position of the first ACV. The method includes recognizing, based on at least the first proxy signal that a failure state exists in which the first ACV has failed to close. The method includes causing the second ACV to close when the failure state exists. 1. A method of preventing drippage in a fluid dispensing system which has a first automatic control valve (ACV) , an input of the first ACV fluidically connected to fluid-source of fluid to be dispensed , the first ACV having positions ranging from fully closed to fully open , and a second ACV , an input of the second ACV being fluidically connected to an output of the first ACV , and an output of the second ACV being fluidically connected to a nozzle , the second ACV having positions ranging from fully closed to fully open , the method comprising:generating at least a first proxy signal representing at least a first indirect measure of a position of the first ACV,recognizing, based on at least the first proxy signal, that a failure state exists in which the first ACV has failed to close; andcausing the second ACV to close when the failure state exists.2. The method of claim 1 , wherein: 'generating a first pressure signal representing air pressure at a first port of the first ACV; and', 'the generating at least a first proxy signal includesthe first proxy signal is the first pressure signal.3. The method of claim 2 , ...

ONE WAY VALVE ASSEMBLY

A one way valve assembly including a base, a cover, and a valve member is provided. The base includes a first and a second lower hollows and an inlet connected through the first lower hollow. The cover includes a first and a second upper hollows, a connecting path, an outlet, and an exhaust nozzle. Positions of the first and the second upper hollows correspond to positions of the first and the second lower hollows. The first upper hollow is connected through the second upper hollow via the connecting path. The outlet is connected through the second upper hollow. The valve member is disposed between the base and the cover. The valve member has a first zone, a second zone, and a third zone corresponding to the first and the second upper hollows and the connecting path, and includes a valve nozzle between the second lower hollow and the second upper hollow. The first zone can deform towards the first lower hollow or the first upper hollow. The second zone can deform towards the second lower hollow or the second upper hollow. The third zone can deform towards the connecting path. 1. A one way valve assembly , comprising:a base, comprising a base inner surface, a first lower hollow and a second lower hollow which are recessed at the base inner surface, and an inlet connected through the first lower hollow;a cover, comprising a cover inner surface, a first upper hollow, a second upper hollow and a connecting path which are recessed at the cover inner surface, an outlet, and an exhaust nozzle located in the first upper hollow, wherein positions of the first upper hollow and the second upper hollow respectively correspond to positions of the first lower hollow and the second lower hollow, the first upper hollow is connected through the second upper hollow via the connecting path, and the outlet is connected through the second upper hollow; anda valve member, disposed between the base and the cover, the valve member having a first zone, a second zone, and a third zone ...

CHECK VALVE ASSEMBLY

An infusion set check valve assembly includes a self-contained housing that defines inlet ports and an outlet port. The assembly also includes at least one check valve disposed within the self-contained housing between the outlet channel and at least one of the inlet ports. The at least one check valve is configured to open for a first fluid to flow from a first inlet to a patient line via an outlet channel while a second fluid also flows from a second inlet to the patient line via the outlet channel. The at least one check valve closes to prevent the first fluid from flowing to the patient line via the outlet channel while the second fluid flows to the patient line. 1. An infusion set check valve assembly comprising:a self-contained housing that defines at least a first inlet port, a second inlet port, and a fluid outlet port, the first inlet port defining a first inlet channel through which a first fluid is received from a first container that retains the first fluid, the second inlet port defining a second inlet channel through which a second fluid is received from a second container that retains the second fluid, the outlet port defining an outlet channel through which one or more of the first fluid or the second fluid received into the self-contained housing via one or more of the first inlet port or the second inlet port is directed to a patient line; andat least one check valve disposed within the self-contained housing between the outlet channel and at least one of the first inlet channel or the second inlet channel,wherein the at least one check valve is configured to open for the first fluid to flow from the first inlet channel to the patient line via the outlet channel while the second fluid also flows from the second inlet channel to the patient line via the outlet channel,wherein the at least one check valve is configured to close to prevent the first fluid from flowing from the first inlet channel to the patient line via the outlet channel while the ...

VALVE

A valve includes a valve mechanism capable of switching a communication state between a first port and a second port of a body. A diaphragm is held between a valve plug and a holder member, at a central portion of the valve mechanism. An outer marginal portion of the diaphragm is held between the body and the bonnet. A pilot channel through which a communication chamber in the body and a pilot chamber in the bonnet communicate with each other is formed in the valve plug. A first hole communicating with the pilot channel is formed at a central portion of the diaphragm. Pressurized fluid in the communication chamber flows into the pilot chamber through the pilot channel and the first hole to thereby bias the valve plug toward a valve seat, by the pressure of the pressurized fluid in combination with an elastic force of a spring. 1. A valve comprising:a body having a passage through which a pressurized fluid flows;a bonnet configured to cover an opening of the body; anda valve mechanism provided inside the body and the bonnet, and configured to switch a communication state of the passage,the valve mechanism comprising:a valve plug;a diaphragm in a form of a flexible sheet, a central portion of the diaphragm being held against the valve plug, and an outer marginal portion of the diaphragm being held between the body and the bonnet; anda holder configured to hold the central portion of the diaphragm between the valve plug and the holder,wherein a pilot hole configured to allow the passage and a pilot chamber of the bonnet to communicate with each other is formed adjacent the central portion of the diaphragm; andcentral portions of the valve plug, the diaphragm, and the holder are stacked together, and fixed to each other by a tightening member.2. A valve comprising:a body having a passage through which a pressurized fluid flows;a bonnet configured to cover an opening of the body; anda valve plug provided inside the body and the bonnet, and configured to switch a ...

DIAPHRAGM, VALVE DEVICE, AND METHOD FOR MANUFACTURING DIAPHRAGM

A diaphragm includes: a metal thin plate; and a thin film layer formed over an entirety of a surface on one side of the thin plate. 1. A diaphragm comprising:a metal thin plate; anda thin film layer formed over an entirety of a surface on one side of the thin plate.2. The diaphragm according to claim 1 , wherein a maximum height Rmax of a surface roughness of the thin film layer is less than 0.1 μm.3. The diaphragm according to claim 2 , wherein the maximum height Rmax of the surface roughness of the thin film layer is less than 0.02 μm.4. The diaphragm according to claim 3 , wherein the maximum height Rmax of the surface roughness of the thin film layer is less than 0.01 μm.5. The diaphragm according to claim 1 , wherein the thin film layer is a carbon film or a fluorine resin film.6. The diaphragm according to claim 5 , wherein the carbon film is constituted by DLC.7. A valve device comprising:a body in which a fluid passage is formed;a valve seat provided in the body; and{'claim-ref': {'@idref': 'CLM-00001', '#text': 'claim 1'}, '#text': 'the diaphragm according to , which is configured to open and close the fluid passage by abutting the valve seat and separating from the valve seat,'}wherein the thin film layer of the diaphragm is positioned on the valve seat side.8. A method for manufacturing a diaphragm having a metal thin plate and a thin film layer claim 5 , the method comprising:molding the thin plate into a spherical shell shape; andforming the thin film layer, which has a surface roughness with a maximum height Rmax of less than 0.1 μm, over an entirety of a concave surface of the thin plate. This application is a continuation under 35 U.S.C. § 120 of PCT/JP2020/015584, filed Apr. 6, 2020, which is incorporated herein reference and which claimed priority to Japanese Patent Application No. 2019-086334, filed Apr. 26, 2019. The present application likewise claims priority under 35 U. S. C. § 119 to Japanese Application No. 2019-086334, filed Apr. 26, 2019, ...

PILOT TYPE SOLENOID VALVE

A pilot type solenoid valve includes a pilot valve unit and a passage block unit. The passage block unit has a rectangular parallelepiped shape including a pair of wide opposite surfaces, and four side surfaces surrounding the wide opposite surfaces. The four side surfaces include a first surface on which the pilot valve unit is attached, and a second surface formed with at least either an input port or an output port. A valve element is a diaphragm valve and arranged in parallel to the pair of wide opposite surfaces. The passage block unit includes a block body forming a valve chamber around a valve seat, and a flat cover. The flat cover includes a recess forming the back chamber of the diaphragm valve, and the flat cover has a flat cover communication path formed to provide communication between the recess and a common path of the pilot valve unit. 1. A pilot type solenoid valve including:a pilot valve unit having a fixed core and a movable core; anda passage block unit formed with a valve seat with which a valve element will come into or out of contact;wherein the passage block unit has a rectangular parallelepiped shape including a pair of wide opposite surfaces and four side surfaces surrounding the wide opposite surfaces,the four side surfaces include a first surface on which the pilot valve unit is attached, and a second surface formed with at least either an input port or an output port,the valve element is a diaphragm valve and arranged in parallel to the pair of wide opposite surfaces,the passage block unit includes a block body forming a valve chamber around the valve seat, and a flat cover of a flat plate shape,the flat cover includes a recess forming a back chamber of the diaphragm valve, andthe flat cover has a flat cover communication path formed to provide communication between the recess and a common port of the pilot valve unit.2. The pilot type solenoid valve according to claim 1 , a through path having an open end at a side surface of the flat ...

Diaphragm Valve

A diaphragm valve has a valve housing and a valve member movable relative to said housing. The valve member includes a diaphragm carrier that can be driven to execute a switchover motion having a sealing diaphragm mounted thereon, which delimits a valve chamber in which a valve seat is found. The sealing diaphragm has a sealing section opposite said valve seat belonging at least partially to a loose diaphragm section of the sealing diaphragm, which can lift from the diaphragm carrier to reduce the stress on the sealing diaphragm when said diaphragm carrier is removed from the valve seat during switching. 1. A diaphragm valve , having a valve housing and at least one valve member movable relative to this housing , wherein the valve member has a diaphragm carrier movable relative to the valve housing through the execution of a switchover movement and also a flexible sealing diaphragm which , together with the valve housing , bounds a valve chamber , wherein the sealing diaphragm is fixed to the valve housing under sealing at its outer edge section and has a mounting diaphragm section fastened to the diaphragm carrier with clearance from said outer edge section and accompanying the switchover movement , wherein there is mounted in the valve chamber a valve seat facing the sealing diaphragm , against which a sealing section of the sealing diaphragm at least partly supported by a base surface of the diaphragm carrier facing the valve chamber may be pressed with sealing , in order to separate from one another two fluid passages opening into the valve chamber and wherein the sealing section is at least partly a constituent part of a loose diaphragm section of the sealing diaphragm which extends , without being fastened to the diaphragm carrier , from the mounting diaphragm section to the outer edge section of the sealing diaphragm fixed to the valve housing , so that it is able to lift from the base surface of the diaphragm carrier when the diaphragm carrier moves away ...

VALVE DEVICE

A valve device is provided that is capable of mounting of various electronic devices, and includes a gas-driven type power generation function to solve problems involving wiring or battery-replacement. The problem is solved by a valve device including a piston member that drives a diaphragm, an actuator part that receives supply of a driver gas and drives the piston member, a coil spring that presses the piston member, and a power generation unit that includes a coil provided to a movable part that moves in association with activation of the actuator part, and a permanent magnet provided to a fixed part that docs not move regardless of activation of the actuator part. 1. A valve device comprising:a movable part that receives a supply of a driver gas and drives a valve element;a fixed part that does not move regardless of activation of the movable part; anda power generation unit including a coil provided to om of the movable part and a driving part, and a permanent magnet provided to the other of the movable pan and the driving part.2. The valve device according to claim 1 , whereinthe coil is provided to the movable part, andthe permanent magnet is provided lo the fixed part.3. The valve device according to claim 1 , further comprising:a spring member that presses the movable part in one direction, whereinthe power generation unit generates a power using a portion of energy stored in the spring member.4. The valve device according to claim 1 , further comprising:a circuit for extracting only a current in n direction of a power generated by the power generation unit when the driver gas supplied to the valve device is discharged outside.5. The valve device according to claim 1 , further comprising:a power supply circuit that boosts a voltage of a power generated by the generator; anda load activated by a power supplied from the power supply circuit.6. The valve device according to claim 5 , further comprising:a secondary battery or a capacitor that receives a power ...

FLOW CONTROL VALVE FOR FLOW CONTROLLER

A flow control valve for a flow controller includes a valve main body provided with an open-top valve chamber hole, a metal diaphragm valve element, a lower support cylinder having notches facing each other, an upper support cylinder attached to the lower support cylinder, a support frame horizontally disposed through the notches of the lower support cylinder, a disc spring placed between the support frame and a bottom of the lower support cylinder, a lower cradle placed on the support frame, a piezoelectric element inserted into the support cylinder above the lower cradle, a guide fixed to the valve main body together with the support frame with the support cylinder being inserted through the guide cylinder in a vertically movable manner. The support cylinder is pressed upward by the extension of the piezoelectric element, whereby the metal diaphragm valve element is separated from the valve seat by the elastic force. 1. A flow control valve for a flow controller , comprising:a valve main body provided with an open-top valve chamber hole having a valve seat on a bottom, a fluid inlet passage communicating with the valve chamber hole, and a fluid outlet passage communicating with the valve chamber hole;a metal diaphragm valve element in an inverted dish shape disposed above the valve seat to face the valve seat, with an outer periphery being hermetically fixed to the bottom of the valve chamber hole;a pressing screw screwed and inserted into the valve chamber hole to press and fix the outer periphery of the metal diaphragm valve element;a lower support cylinder inserted through the pressing screw into the valve chamber hole, provided with a diaphragm presser below a bottom wall at a tip portion, and also having, on a side wall, rectangular through notches extending from an upper end of the side wall to an intermediate portion of the side wall;an upper support cylinder in a cylindrical shape screwed and attached to an upper end portion of the lower support cylinder ...

AIR PRESSURE REGULATOR

An air pressure regulator includes a regulator body defining a hollow interior, an air inlet in communication with the hollow interior and configured to connect with a source of pressurized air, an air outlet fluidly coupled with the air inlet, and a valve stem positioned at the air inlet and configured to regulate the pressure of the pressurized air for the air outlet by way of movement of the valve stem relative to the air inlet. 1. An air pressure regulator comprising:a regulator body defining a hollow interior;an air inlet in communication with the hollow interior and configured to connect with a source of pressurized air;an air outlet fluidly coupled with the air inlet;a valve stem positioned at the air inlet and configured to regulate the pressure of the pressurized air for the air outlet by way of movement of the valve stem relative to the air inlet;a restraining element disposed within the hollow interior and coupled with the valve stem such that the valve stem and the restraining element move in unison wherein the restraining element includes an electrically conductive sleeve; anda magnet having a magnetic field mounted to the regulator body wherein the magnetic field encompasses at least part of the conductive sleeve;wherein movement of the conductive sleeve relative to the magnetic field is retarded by Eddy currents generated in the conductive sleeve by the movement.2. The air pressure regulator of wherein vibrational movement of at least one of the regulator body claim 1 , the valve stem claim 1 , the air inlet claim 1 , the air outlet claim 1 , or the restraining element is retarded by Eddy currents generated in the conductive sleeve by the movement of the conductive sleeve relative to the magnetic field.3. The air pressure regulator of wherein at least one of the magnet or conductive sleeve is configured to retard vibrational movement in an aircraft.4. The air pressure regulator of wherein the restraining element includes a mechanical restraining ...

PISTON-FORMAT WORKING-FLUID-PRESSURE ACTUATOR AND CONTROL VALVE

[Problem] To provide a piston-format working-fluid-pressure actuator capable of commonly using components when the piston-format working-fluid-pressure actuator is used for a reverse action or a normal action and decreasing a length dimension, in the forward/backward movement direction of the output shaft and to provide a control valve using the piston-format working-fluid-pressure actuator and a valve member. 1. A piston-format working-fluid-pressure actuator comprising:a casing provided with a cylinder chamber by including first and second casing bodies;an output shaft supported by the casing so as to be movable forward or backward;a piston attached to the output shaft and defining the cylinder chamber;a spring member applying an elastic force of moving the output shaft to the piston;a working-fluid supply opening supplying a working fluid applying a force of moving the output shaft to the piston against the elastic force applied from the spring member; andat least one seal member sealing the leakage of the working fluid,wherein the piston includes an accommodating recess accommodating the spring member and is attachable to the output shaft so that an opening of the accommodating recess is selectively directed toward the first casing body or the second casing body,wherein the output shaft extends so as to penetrate one casing body of the first casing body and the second casing body and is connected to a subject operation member, and{'b': 1', '2', '1', '2, 'wherein the piston is disposed so as to establish a relation of L=L when the distance L is a distance between a seating surface connected to the output shaft and a contact surface contacting one casing body during a reverse action and the distance L is a distance between a seating surface connected to the output shaft and a contact surface contacting one casing body during a normal action.'}2. The piston-format working-fluid-pressure actuator according to claim 1 , further comprising:a connection member ...

Closure element for a valve device and valve device

A closure element for a valve device for fluids and an valve device for fluids is described. The closure element includes a membrane and a valve device protruding from the membrane. The valve device has an outer diameter return which is configured so that the closure element can be locked by means of locking slide which can be moved toward the outer diameter return substantially orthogonally to a feed axis.

COMPACT HYDRAULIC SERVO-ACTUATED VALVE

A hydraulic servo-actuated valve having a valve body, an actuator and a lid is provided. The valve body has a main opening and a clamping flange arranged around the main opening. The actuator has a central actuation region and a peripheral sealing band. The lid has a central portion and a counter-clamping flange. The valve has a composite actuating duct longitudinally extending between the clamping flange and the counter-clamping flange and the composite actuating duct is obtained by joining a first element and a second element. 1. A hydraulic servo-actuated valve comprising a valve body , an actuator and a lid ,the valve body comprising a first duct with a first opening, a second duct with a second opening, a main opening arranged on the valve body between the first duct and the second duct, a clamping flange arranged around the main opening;the actuator comprising a central actuation region and a peripheral sealing band;the lid comprising a central portion and a counter-clamping flange, the central portion concurring with the actuator in delimiting an actuating chamber, the counter-clamping flange being adapted to be clamped against the clamping flange with the interposition of said peripheral sealing band of the actuator;said actuator being adapted to make an actuation movement between an open position, which allows the flow between the first duct and the second duct, and a closed position preventing the flow between the first duct and the second duct, wherein said valve comprises a composite actuating duct longitudinally extending between the clamping flange and the counter-clamping flange, said composite actuating duct being obtained by joining a first element and at least one second element.2. The hydraulic servo-actuated valve according to claim 1 , wherein said first element comprises a first longitudinal portion of the composite actuating duct and in that said second element comprises a second longitudinal portion of the composite actuating duct.3. The ...

VALVE WITH WELDED DIAPHRAGM TO ASSIST OPENING FORCE

A springless diaphragm valve and associated diaphragm have increased lifting force for opening the valve. In an embodiment, the diaphragm is a diaphragm assembly of a domed diaphragm having a surface that contacts the valve seat to close the valve, and a biasing member which may also be a domed diaphragm. The diaphragm has a central portion that is attached to the biasing member, for example by a weld. The diaphragm and the biasing member may be nested together, and each may be circular and include a domed portion. The weld is preferably in a central portion of the diaphragm near the apex or geometric center of the diaphragm. 1. A diaphragm valve , comprising:a valve body having a longitudinal axis and comprising a flow path for fluid from an inlet to an outlet,a valve seat,a diaphragm comprising a surface that contacts said valve seat to block flow between said inlet and said outlet, a biasing member attached to said diaphragm, said biasing member being attached to said diaphragm and applies a lifting force to said diaphragm.2. The diaphragm valve of wherein said diaphragm comprises a domed diaphragm.3. The diaphragm valve of wherein said biasing member is welded to said diaphragm.4. The diaphragm valve of wherein said biasing member is attached to a central area of said diaphragm.5. The diaphragm valve of wherein said biasing member is welded to said diaphragm.6. The diaphragm valve of wherein said biasing member is welded to said diaphragm.7. The diaphragm valve of wherein said biasing member is attached to a central area of said diaphragm.8. The diaphragm valve of wherein said biasing member is welded to said diaphragm.9. The diaphragm valve of wherein said biasing member is attached to said diaphragm at a location that includes a central area of said diaphragm.10. The diaphragm valve of wherein said biasing member is welded to said diaphragm.11. The diaphragm valve of in combination with an actuator claim 1 , said actuator applying a force to said diaphragm to ...

MODULAR ACTUATOR UNIT FOR A FUEL INJECTION VALVE

An actuator unit for a fuel injection valve of a vehicle internal combustion engine. The actuator unit includes an electronic component formed as a stack. The component includes a plurality of electrode layers and a plurality of material layers which are arranged alternately and react to the application of an electric field. The component also has two outer electrodes electrically connected to respective electrode layers on at least one circumferential side of the component. Additionally, the actuator unit has a piezoelectric sensor coupled to the component in a force-fitting manner, in the stroke direction of the component. When the component is in operation, the sensor detects a force generated by the component, as a voltage or charge between two electrodes arranged on opposing end faces, of a sensor element. The electrodes are deposited from an electrically conductive material directly onto at least the end faces of the sensor element. 1. An actuator unit for an injection valve of an internal combustion engine of a vehicle , comprising: a plurality of electrode layers;', 'a plurality of layers of material that react to the application of an electric field, wherein layers of material and electrode layers are stacked alternately; and', 'two outer electrodes, to which the electrode layers are each alternately electrically connected on at least one peripheral side of the component;, 'an electronic component in the form of a stack, with'}a piezoelectric sensor comprising a sensor body and two electrodes disposed on opposite end faces of the sensor body,wherein the piezoelectric sensor is coupled to the component in a force-fit manner in the stroke direction of the component and detects a force generated by the component during operation of the component that can be detected as a voltage or charge between the electrodes,wherein the electrodes are applied from an electrically conductive material directly onto at least one of the end faces of the sensor body.2. The ...

A Bioprocess Flow System

A method for controlling at least one valve provided to a tube in a bioprocess flow system, said method comprising the steps of: —controlling the at least one valve to be in a first state, which is an open state when a flow through the tube should be allowed; —controlling the at least one valve to be in a second state during some parts of a process run in the system, said second state is a closed state were a first closing force is provided; and—controlling the at least one valve to be in a third state during some parts of a process run in the system, said third state is a closed state were a second closing force is provided which is a higher force than the first closing force. 1. A method for controlling at least one valve provided to a tube in a bioprocess flow system , said method comprising the steps of:controlling the at least one valve to be in a first state, which is an open state when a flow through the tube should be allowed;controlling the at least one valve to be in a second state during some parts of a process run in the system, said second state is a closed state were a first closing force is provided; andcontrolling the at least one valve to be in a third state during some parts of a process run in the system, said third state is a closed state were a second closing force is provided which is a higher force than the first closing force.2. The method according to claim 1 , wherein the steps of controlling the at least one valve to be in the second state and the third state comprise urging a flexible material into sealing contact with a surface.3. The method according to claim 1 , wherein said method is a method for ensuring reliable opening of at least one valve.4. The method according to claim 1 , wherein the step of controlling the at least one valve to be in a second state comprises pinching the tube with the first closing force claim 1 , which first closing force is adapted to stop the flow in the tube at a first fluid pressure in the tube; and ...

VALVE BODY AND METHOD FOR PRODUCING THE VALVE BODY

The invention relates to a valve body including a membrane which cooperates with a valve seat, wherein the valve body and the membrane are connected to each other in the region of a laser weld seam in a bonded and fluid-tight manner. 1. Valve body comprising a membrane which cooperates with a valve seat , the valve body and the membrane being connected to each other in the region of a laser weld seam in a bonded and fluid-tight manner , characterized in thatthe membrane and the valve body are free of absorbent aggregates,the material of the valve body comprises polypropylene and/or polyethylene, andthe material of the membrane comprises a thermoplastic elastomer.2116. Valve body according to claim 1 , wherein the membrane () is substantially transparent to laser light having a wavelength claim 1 , and wherein the valve body () substantially absorbs laser light having the same wavelength.3. Valve body according to claim 1 , wherein the membrane is arranged inside a recess for a thrust piece of a valve drive.462228. Valve body () according to any of the preceding claims claim 1 , wherein the membrane () is arranged inside a recess () for a thrust piece of a valve drive.5. Valve assembly comprising a valve body comprising a membrane which cooperates with a valve seat claim 1 , the valve body and the membrane being connected to each other in the region of a laser weld seam in a bonded and fluid-tight manner claim 1 , characterized in thatthe membrane and the valve body are free of absorbent aggregates,the material of the valve body comprises polypropylene and/or polyethylene, andthe material of the membrane comprises a thermoplastic elastomer, and a valve drive having a thrust piece which cooperates with the membrane.6. Method for producing a valve body comprising a membrane which cooperates with a valve seat claim 1 , the valve body and the membrane being connected to each other in the region of a laser weld seam in a bonded and fluid-tight manner claim 1 , ...

Valve assembly

A water control device includes a valve, the valve including a valve body, the valve body including a first end and a second end, the valve body defining a transmission cavity allowing fluid communication between the first end and the second; a control mechanism located within the transmission cavity, the control mechanism arranged to provide modifiable fluid control within the valve; at least one sensor, the at least one sensor being in fluid communication with the transmission cavity; and at least one remote transmission unit in electronic communication with the sensor.

COUPLING STRUCTURE OF ELECTROMAGNETIC VALVE FOR CONTROLLING WATER SUPPLY

Provided is a coupling structure of an electromagnetic valve for controlling water supply. The coupling structure comprises: a coupling member provided with a coupling protrusion to be coupled to an upper portion of the valve body; at least one hook provided on the coupling member to be hooked to a locking piece; a supporting plate outwardly extending from a lower end of a sleeve to support the electromagnetic part, the sleeve being divided into upper and lower parts provided at upper and lower portions of the electromagnetic part; the locking piece provided at an end of the supporting plate by being bent upwardly to be hooked to the hook; and engaging pieces protruding from opposite sides of the supporting plate to engage with engaging grooves of the sleeve, thereby preventing the electromagnetic part from rotating. 1. A coupling structure of an electromagnetic valve for controlling water supply , the electromagnetic valve comprising:a valve body provided with an inlet port and an outlet port through which water is respectively introduced and discharged, and a diaphragm between the inlet port and the outlet port to define a pressure chamber; and an electromagnetic part fixed on the valve body to seal the pressure chamber, wherein the water is introduced into the pressure chamber or discharged to a target device in response to operation of the electromagnetic part, thereby controlling water supply, the coupling structure comprising:a coupling member provided with a coupling protrusion to be coupled to an upper portion of the valve body;at least one hook provided on the coupling member to be hooked to a locking piece;a supporting plate outwardly extending from a lower end of a sleeve to support the electromagnetic part, the sleeve being divided into upper and lower parts provided at upper and lower portions of the electromagnetic part;the locking piece provided at an end of the supporting plate by being bent upwardly to be hooked to the hook; andengaging pieces ...

VALVE AND FLUID CONTROL APPARATUS

A fluid control apparatus includes a piezoelectric pump and valve. The valve includes a second valve housing, second seal member, diaphragm, first seal member, and first valve housing and has a structure in which they are laminated in sequence. The first valve housing includes a second vent and third vent, has a valve seat, and includes six cavities. The second valve housing has a first vent and first vent and includes a valve seat and six first protrusions. The second valve housing further includes six second protrusions nearer the outer edges than the six first protrusions, as seen in the x-axis direction in plan view. 1. A valve comprising:a diaphragm having a hole portion;a first seal member disposed on a first principal surface of the diaphragm;a first valve housing joined to the diaphragm with the first seal member disposed therebetween, the first valve housing having a first hole and a first valve room located near the first principal surface of the diaphragm and communicating with the first hole, the first valve housing including a plurality of cavities located in an outer side portion with respect to the first valve room;a second seal member disposed on a second principal surface of the diaphragm; anda second valve housing joined to the diaphragm with the second seal member disposed therebetween, the second valve housing having a second hole and a second valve room located near the second principal surface of the diaphragm and communicating with the second hole, the second valve housing including a plurality of first protrusions located in an outer side portion with respect to the second valve room,wherein the diaphragm is held between the first valve housing and the second valve housing with the first seal member and the second seal member disposed therebetween by fitting the plurality of first protrusions into the plurality of cavities,a surrounding area of the hole portion in the diaphragm is in contact with the second valve housing in the second valve ...

FLUORORESIN DIAPHRAGM VALVE

A fluororesin diaphragm valve includes a valve portion, a sealing mechanism and an adjusting mechanism for the opening degree of the valve. The valve portion includes a valve body, a valve shaft, and a valve upper cover. The valve body includes a square portion, an annular portion, and a valve chamber. The sealing mechanism includes a diaphragm, an upper valve body, a tightening ring and an annular portion of the valve body. The adjusting mechanism is installed on the top of the valve upper cover. The sealing mechanism is installed in the annular portion and at the minimum diameter area of the annular portion, having annular lattice-shaped ribbed plates with horizontal openings to increase the structural strength of the diaphragm seal and improve the heat dissipation effect. 1. A sealing mechanism of a fluororesin diaphragm valve , used for liquid transportation at 200° C. without forced cooling of an external gas and for liquid transportation at 230° C. with forced cooling of the external gas , the sealing mechanism of the fluororesin diaphragm valve comprising related parts and mechanisms of a valve portion;the valve portion including a valve body, a force-applying member, a valve upper cover, a diaphragm, and a valve shaft; the valve body including an inlet, an outlet, a valve chamber, an annular portion, and a square portion;the valve shaft being a hollow shaft, including a fixing end, a shaft rod, and a plurality of gas guide holes;the annular portion being a cup-shaped structure having an opening, a bottom of the annular portion being defined as the valve chamber, the annular portion including a sealing surface, an external ring surface, a minimum diameter area, one or more cooling gas holes, a cooling gas annular groove and an internal ring surface, the opening being closed by the valve upper cover;the valve upper cover including an inner accommodating chamber, an external ring surface, a top, and a central hole;the diaphragm including a peripheral portion, ...

FLOW RATE REGULATING DEVICE AND CONTROL METHOD OF FLOW RATE REGULATING DEVICE

There is provided a flow rate regulating device including a valve body section having a flat valve body surface, a valve seat section having a flat valve seat surface, a regulation mechanism that moves the valve body section along an axis, and a control unit that controls the regulation mechanism, wherein the regulation mechanism has a stepping motor that rotates a drive shaft about the axis, and a moving member that moves along the axis in response to the rotation of the drive shaft and is coupled to the valve body section, and the control unit controls the stepping motor so that the valve body section moves in a movement range in which the valve body surface and the valve seat surface maintain a non-contact state, in accordance with an excitation signal that changes by a micro step unit obtained by dividing a step by a predetermined division number. 1. A flow rate regulating device comprising:a valve body section that moves along an axis extending in a vertical direction in a valve chamber and has a flat valve body surface extending in a horizontal direction;a valve seat section having a flat valve seat surface provided around a channel opening that communicates with an inner channel and the valve chamber, disposed at a position opposite to the valve body surface and extending in the horizontal direction;a regulation mechanism that moves the valve body section along the axis to regulate a distance between the valve body surface and the valve seat surface; anda control unit that controls the regulation mechanism,wherein the regulation mechanism includes a stepping motor that rotates a drive shaft about the axis, and a moving member that moves along the axis in response to rotation of the drive shaft and is coupled to the valve body section, andthe control unit controls the stepping motor so that the valve body section moves in a movement range in which the valve body surface and the valve seat surface maintain a non-contact state, in accordance with an excitation ...

Flow Control Components With Traceable Indicia

A valve diaphragm is provided with indicia of origin, batch number, date of manufacture and other information. Critical indicia are disposed on outwardly projecting tabs that can be see when the diaphragm is operatively mounted in the valve. Indicia may be provided on elastomeric and non-elastomeric portions of the diaphragm. 1. In a diaphragm designed for installation in a flow control assembly , an improvement comprising a plurality of indicia outwardly visible on said diaphragm when installed in said flow control assembly , said indicia providing with respect to said diaphragm identification of at least the manufacturer , month and year of production and batch number.2. The diaphragm according to claim 1 , wherein said indicia are provided on first and second tabs projecting from said diaphragm.3. The diaphragm according to claim 2 , wherein the first tab displays a year of manufacture claim 2 , numbered months surrounding said year of manufacture and a first pointer adjacent to said year of manufacture indicating the month of manufacture.4. The diaphragm according to claim 1 , wherein the second tab displays a manufacturer code claim 1 , numbered batches surrounding said manufacturer code and a second pointer adjacent to said manufacturer code.5. The diaphragm according to wherein additional indicia are provided on opposing sides of the diaphragm adjacent to outer edges thereof.6. The diaphragm according to claim 5 , wherein a part number for the diaphragm is provided on one side thereof claim 5 , said part number comprising style claim 5 , size claim 5 , grade and composition codes7. The diaphragm according to claim 6 , wherein one or more trademarks for the diaphragm is provided on the other side thereof.8. The diaphragm according to claim 1 , wherein said indicia are provided on opposing surfaces of a tab projecting outwardly from said diaphragm.9. The diaphragm according to claim 8 , wherein manufacturer and material indicia are provided on one surface of ...

QUICK RELEASE VALVE COMPRESSOR

Apparatus is provided featuring a spindle having extending spindle portions configured with spindle glands; a compressor having extending compressor portions configured with compressor glands, and a snap ring configured to engage the spindle glands and the compressor glands in order to attach the spindle and compressor together, so that the compressor may be quickly released from the spindle by releasing an engagement between the snap ring, the spindle glands and/or the compressor glands. 1. Apparatus comprising:a spindle having extending spindle portions configured with spindle glands;a compressor having extending compressor portions configured with compressor glands, anda snap ring configured to engage the spindle glands and the compressor glands in order to attach the spindle and the compressor together, so that the compressor may be quickly released from the spindle by releasing an engagement between the snap ring, the spindle glands and/or the compressor glands.2. Apparatus according to claim 1 , whereinthe spindle glands are configured for facing outwardly away from the center of the spindle;the compressor glands are also configured for facing outwardly away from the center of the compressor; andthe snap ring is configured to engage the spindle glands and the compressor glands so as to form a shared exterior gland.3. Apparatus according to claim 1 , whereinthe spindle glands are configured for facing inwardly towards the center of the spindle;the compressor glands are configured for facing inwardly towards the center of the spindle or the compressor; andthe snap ring is configured to engage the spindle glands and the compressor glands so as to form a shared interior gland.4. Apparatus according to claim 1 , whereinthe extending spindle portions are configured on diametrically opposite sides of an end portion of the spindle; andthe extending compressor portions are configured on diametrically opposite sides of a center portion of the compressor.5. Apparatus ...

Fluid control assemblies for sprinkler systems

Automatic fluid control assemblies and methods for fire protection include an arrangement of electrically operated control points, a valve body and a controller to operate the fluid control assembly. The automatic fluid control assembly has an inlet, an outlet and a valve body to control flow between the inlet and the outlet. An electric latch includes a first electrically operated control point and a second electrically operated control point in fluid communication with a control line to control the flow of fluid from the inlet to the valve body and outlet. The methods of fluid control include controlling a plurality of electrically operated control points to perform any one of: a leak test, a trip test, a flow test, a water delivery test, and a validation test of a non-trip condition and a trip condition.

DIAPHRAGM VALVE

A diaphragm valve, in particular for fluid media, includes a valve body, a diaphragm, and a connecting piece which can be actuated by a drive unit to act on the diaphragm, wherein the valve body and the diaphragm are made of plastic. Two mutually independent seals are provided for sealing the fluid medium with respect to the outside, wherein the valve body and the diaphragm are welded to each other, and the diaphragm is mechanically sealed between the drive unit, or an intermediate piece, and the valve body. 111.-. (canceled)12. A diaphragm valve , comprising:a valve body made of plastic,a diaphragm made of plastic, anda connecting piece actuated by a drive unit for operating on the diaphragm,a first seal constructed as a welded seal between the valve body and the diaphragm to seal the fluid medium to the outside, anda second seal constructed as a mechanical seal which seals the diaphragm between the drive unit or an intermediate piece and the valve body.13. The diaphragm valve of claim 12 , wherein the mechanical seal is constructed as a clamping or squeezing seal.14. The diaphragm valve of claim 12 , wherein the first and the second seals are arranged in a circle.15. The diaphragm valve of claim 12 , wherein the first and the second seals are arranged in concentric circles.16. The diaphragm valve of claim 12 , wherein the mechanical seal is arranged radially inward and the welded seal is arranged radially outward.17. The diaphragm valve of claim 12 , wherein the mechanical seal is a (Qualified Hygienic Design) QHD seal.18. The diaphragm valve of claim 12 , wherein the mechanical seal comprises projections arranged on at least one of the valve body claim 12 , the drive unit and the intermediate piece.19. The diaphragm valve of claim 18 , wherein the projections face each other and accommodate the diaphragm therebetween.20. The diaphragm valve of claim 12 , further comprising a seal formed of a groove and a spring and arranged radially inward of the welded seal.21. ...

VACUUM OPERATED VALVE

A fill valve with pressure chamber having an open bottom end and a diaphragm at a top end such that falling water level in the toilet tank causes the diaphragm to flex in a first direction, thereby moving a sealing member to an open position, with a venturi in the fill valve keeping the sealing member in the open position until water refilling the tank causes the diaphragm to flex in a second direction, thereby moving the sealing member back to the closed position. 1. A valve system , comprising:(a) a water supply member; (i) a sealing member moveable between an open position during which water flows through the valve assembly and a closed position during which water is prevented from flowing through the valve assembly,', '(ii) a pressure chamber;', '(iii) a first diaphragm in the pressure chamber, wherein the sealing member is mounted to the first diaphragm such that movement of the first diaphragm causes movement of the sealing member;', '(iv) a second diaphragm in communication with the sealing member;', '(v) a vacuum chamber between the first and second diaphragms; and', '(vi) a venturi downstream of the moveable sealing member, wherein the sealing member has an air passageway therethrough from the venturi to the vacuum chamber., '(b) a valve assembly in communication with the water supply member, the valve assembly comprising2. The system of claim 1 , further comprising:(c) a cap over the valve assembly, the cap being dimensioned to direct water flow down around the outside of the hollow water supply member.3. The system of claim 1 , wherein water flowing through the venturi decreases air pressure in the vacuum chamber.4. The system of claim 1 , wherein a decrease in air pressure in the pressure chamber causes the first diaphragm to move the sealing member to the open position during which water flows through the valve assembly.5. The system of claim 4 , wherein the decrease in air pressure in the pressure chamber is caused by a falling water level around the ...

Drinking Vessel and Ventilation Members

A drinking vessel has a cup with a removable lid having at least one inlet-outlet opening which receives an elastic straw-vent assembly having a flexible tubular straw or spout and a ventilation member that defines an air passageway and a vent opening. A vent actuator is operably coupled to the ventilation member and configured to change a state of the ventilation member between a ventilation state and a closed state. A cover movably mounted on top of the lid, shiftable between a closed and an open position, comprises a cam on an inward surface of the cover which is configured to contact the vent actuator during movement of the cover member to change the state of the ventilation member. In the closed position the cover engages the straw, folding the straw against the lid, and in the open position, the straw fluid passageway and the vent opening are unobstructed. 1. A drinking vessel , comprising:a container having an open mouth and an internal cavity;a removable lid attachable to the mouth, the lid having at least one opening;at least one flexible ventilation member that sealingly engages the at least one opening in the lid and has an air passage extending therethrough, wherein the ventilation member is configured to allow an inflow of air when pressure within the container enters a negative pressure state in relation to pressure outside the container, and configured to prevent a liquid contained in the internal cavity from leaking therethrough and wherein the ventilation member comprises one or more venting portions disposed within the air passage;a vent actuator operably coupled to the at least one ventilation member and configured to change a state of the ventilation member between a ventilation state and a closed state, wherein the vent actuator is integral with the ventilation member and configured to bring the ventilation member into the ventilation state upon contact with a cam portion; anda cover member disposed on the lid and moveable between open and ...

PRESSURE RELIEF DEVICE

A pressure relief device is disclosed, such as may be used with a battery. According to one embodiment, the pressure relief device may include a pressure-retaining membrane—which may be a polymer or flexible graphite membrane—supported by a support strip. In response to a predetermined pressure on the pressure-retaining membrane, the support strip may be caused to deform, allowing the pressure-retaining membrane to open. The pressure-retaining membrane may include one or more lines of weakness to define an opening area and/or to determine the pressure conditions under which the membrane may open. One or more stress-applying devices or piercing mechanisms may be provided to cause the membrane to open. 1. A pressure relief device , comprising:a pressure-retaining membrane;a support strip positioned adjacent to a surface of the membrane, wherein the support strip is configured to support the membrane when the membrane is subjected to pressure from a pressurizable volume; anda stress-applying device;wherein the support strip is configured to activate by deforming in response to a predetermined pressure acting on the membrane; andwherein the membrane is configured to contact the stress-applying device when the support strip has deformed.2. The pressure relief device of claim 1 , wherein the membrane is formed of a polymer material.3. The pressure relief device of claim 1 , wherein the support strip is arched.4. The pressure relief device of claim 3 , wherein pressure acting on the membrane imparts a compressive force on the support strip.5. The pressure relief device of claim 3 , wherein pressure acting on the membrane imparts a tensile force on the support strip.6. The pressure relief device of claim 1 , wherein the pressure-retaining membrane has a first surface and a second surface claim 1 , wherein the first surface is configured to face the pressurizable volume claim 1 , and wherein the support strip is positioned adjacent to the second surface of the membrane.7. ...

WATER SUPPLY DEVICE FOR SANITARY CERAMICS

The present disclosure relates to a water supply device for sanitary ceramics, including a housing including a water supply hole, a water discharge hole, and an opening/closing device including a diaphragm formed above the water discharge hole, a partition cap having a support protrusion and a through-hole through which an upper space communicates with a lower space of the housing, a cam plate configured to gradually open or close the through-hole, a shaft part formed above the cam plate, and a motor formed on the upper surface of the housing to rotate the shaft part, wherein the cam plate, rotating and elevating along the upper surface of the support protrusion of the partition cap, gradually opens or closes the through-hole and gradually opens or closes the water discharge hole by the diaphragm, and thus the flow of water discharged through the water discharge hole is prevented from being suddenly blocked. 1. A water supply device for sanitary ceramics , comprising:{'b': ['100', '101', '102', '101', '103', '101', '101', '102', '102'], '#text': 'a housing () that has a hollow water supply hole () formed at a lower central portion thereof, a pair of water discharge holes () formed at lower ends of both sides with respect to the water supply hole (), and a flow path () configured to guide water flowing into the water supply hole () between the water supply hole () and the water discharge hole () so that the water is discharged to the water discharge hole (); and'}{'b': ['200', '102', '100', '102'], '#text': 'an opening/closing device () that is installed above the water discharge hole () of the housing () and opens or closes an upper end of the water discharge hole (),'}{'b': '200', '#text': 'wherein the opening/closing device () includes:'}{'b': ['210', '102', '211', '102'], '#text': 'a diaphragm () that is installed above the water discharge hole (), has a guide hole () formed at an outer edge thereof, and is vertically elevated to open or close the water discharge ...

Diaphragm lip and seal for fluid control valve and methods of fluid control

A fluid control valve includes a cover portion having a first channel and a body portion having a second channel. Inner surfaces of the cover and the body portion define a chamber that includes an inlet and an outlet in communication with the chamber. The fluid control valve also includes a diaphragm disposed between the cover portion and the body portion. The diaphragm has a flexible member that is disposed within the chamber for controlling communication between the inlet and the outlet and a lip member circumscribing the flexible member. When the cover portion and the body portion are joined, the first channel and the second channel define a cavity that circumscribes the chamber and the cavity is configured such that each channel receives a portion of the lip member and pinches the lip member to seal the fluid control valve and hold the diaphragm.

FLUID CONTROL VALVE HAVING DIAPHRAGM THAT EXCLUSIVELY BIASES TO CLOSED POSITION AND METHODS OF FLUID CONTROL

A fluid control valve includes a cover portion and a body portion. Inner surfaces of the cover and the body portion define a chamber that includes an inlet and an outlet in communication with the chamber. The fluid control valve also includes a diaphragm disposed between the cover portion and the body portion. The diaphragm has a flexible member that is disposed within the chamber for controlling communication between the inlet and the outlet. The upper surface of the flexible member has a substantially smooth wall portion. The flexible member has an inverted position in which the upper surface conforms to at least a portion of the inner surface of the cover portion to define a passageway that permits communication between the inlet and the outlet. The diaphragm is configured such that the diaphragm exclusively biases the flexible member from the first position to the second position so that the flexible member conforms to and seals against the elongated seat member when the flexible member is in the second position. 1. A fluid control valve comprising:a cover portion with a first inner surface;a body portion with a second inner surface, the body portion including an elongated seat member substantially aligned along a plane perpendicular to a flow axis of the fluid control valve, the first and second inner surfaces defining a chamber when the cover portion and the body portion are joined, the chamber including an inlet and an outlet in communication with the chamber; anda diaphragm disposed between the cover portion and the body portion, the diaphragm including a flexible member disposed in the chamber and having a first position in which the flexible member is inverted to define a passageway to permit communication between the inlet and the outlet and a second position to prevent fluid communication between the inlet and the outlet,wherein the diaphragm exclusively biases the flexible member from the first position to the second position so that the flexible member ...

DIAPHRAGM VALVE

A diaphragm valve, more particularly for fluid media, includes a valve body, a diaphragm and a connection piece that can be activated by a drive in order to act on the diaphragm, wherein the valve body, the diaphragm and the connection piece are made of plastic. The valve body and the diaphragm are made of different plastics, wherein the plastic of the diaphragm is more elastic than the plastic of the valve body. 115-. (canceled)16. A diaphragm valve , comprisinga valve body,a diaphragm, anda connecting piece operable by a drive unit for acting on the diaphragm,wherein the valve body, the diaphragm and the connecting piece are made of different plastic materials and the plastic material of the diaphragm is more elastic than the plastic material of the valve body.17. The diaphragm valve of claim 16 , wherein the diaphragm valve is constructed for fluid media.18. The diaphragm valve of claim 16 , wherein the diaphragm and the connecting piece are made of different plastic materials.19. The diaphragm valve of claim 16 , wherein the plastic material of the diaphragm is more elastic than the plastic material of the connecting piece.20. The diaphragm valve of claim 16 , wherein the valve body and the connecting piece are made of an identical plastic material.21. The diaphragm valve of claim 16 , wherein the connecting piece is overmolded with the material of the diaphragm.22. The diaphragm valve of claim 16 , wherein the connecting piece and the diaphragm are constructed as a multi-component injection-molded part.23. The diaphragm valve of claim 22 , wherein the connecting piece and the diaphragm are constructed as a 2-component injection-molded part.24. The diaphragm valve of claim 16 , wherein a first region of the connecting piece is supported in the diaphragm and is shaped as a mushroom head having an end with a curvature facing the diaphragm.25. The diaphragm valve of claim 24 , wherein the curvature is a concave curvature or a convex curvature.26. The diaphragm ...

Flush Valve

A flush valve has a relief valve that has a stationary valve element and a rotatable valve element each having at least one opening, and being rotationally positionable relative to one another to regulate fluid flow. A disc contacts a diaphragm valve seat to form a seal between the disc and the diaphragm valve seat when the diaphragm assembly is in the closed position and with the relief valve closed. When the flush valve is activated, the relief valve is opened to permit a flow of water from the chamber into the fluid outlet. The opening of the relief valve relieves fluid pressure in the chamber and causes diaphragm assembly to move from the closed position to the opened position. The disc is unseated from the valve seat which permits water to pass from the fluid inlet to the fluid outlet when the diaphragm assembly is in the open position. 1. A flush valve comprising:a valve housing defining a fluid passageway between a fluid inlet and a fluid outlet, the fluid passageway having a diaphragm valve seat disposed between the fluid inlet and the fluid outlet;a diaphragm assembly including a diaphragm and a disc, the diaphragm having a primary opening and a bypass opening, the primary opening receiving the disc therein and the bypass opening allowing water under pressure supplied to the fluid inlet to pass from a fluid inlet side of the diaphragm into a chamber in the fluid passageway established by a presence of the diaphragm assembly in the fluid passageway, wherein the diaphragm assembly is disposed in the fluid passageway and is movable between an opened position in which the disc of the diaphragm assembly is not in contact with the diaphragm valve seat and a closed position in which the disc of the diaphragm assembly is in contact with the diaphragm valve seat; anda relief valve configured to selectively control fluid flow from the chamber to the fluid outlet, the relief valve comprising a stationary valve element and a rotatable valve element each having at least ...

DIAPHRAGM VALVE

There is described a diaphragm valve () comprising a housing () which includes at least two fluid openings (), at least one valve seat (), a valve element (), and at least one actuator (). The actuator () is an electroactive polymer actuator which is able to shift the valve element () in order to release and/or close the at least one valve seat (). 1. A diaphragm valve comprising a housing which includes at least two fluid openings , at least one valve seat , one valve element and at least one actuator , wherein the actuator is an electroactive polymer actuator which is able to shift the valve element in order to release and/or close the at least one valve seat.2. The diaphragm valve according to claim 1 , characterized in that the valve element is formed so as to be a flexible diaphragm.3. The diaphragm valve according to claim 1 , characterized in that the diaphragm valve only includes components of non-ferromagnetic material.43816. The diaphragm valve according to claim 1 , characterized in that the housing includes a first housing part and a second housing part claim 1 , wherein the at least one valve seat and the at least two fluid openings are formed in the first housing part and the actuator () is arranged in the second housing part ().5. The diaphragm valve according to claim 4 , characterized in that the first housing part and the second housing part are housing halves claim 4 , with the valve element being arranged between the two housing halves.6. The diaphragm valve according to claim 1 , characterized in that the actuator is a stack or diaphragm actuator.7. The diaphragm valve according to claim 1 , characterized in that on an inner wall of the housing at least one electric line is arranged via which the at least one actuator is coupled with an electric terminal.8. The diaphragm valve according to claim 1 , characterized in that a spring element is provided claim 1 , which is arranged on the housing and directly acts on the valve element.9. The ...

Lock Device and Valve Device

Provided are a valve device free of changes in the position of the valve member caused by external force and fluid pressure, and a lock device for the valve device. The lock device has a tubular member fitted to the rotating part of the valve device so that the member is movable along the axis of the rotating part in both directions, wherein the member has a protrusion on its inner circumferential face along its axis, and the protrusion engages with or disengages from recesses in an outer circumferential face of a holder of the rotating part formed along its axis when the member moves in either direction; or the member has recesses in its inner circumferential face formed along its axis, and the recesses engage with or disengage from a protrusion on the outer circumferential face of the holder along its axis when the member moves in either direction.

Low-Torque Valve and Assemblies Including Said Valve

A low-torque valve for regulating fluid flow between a valve inlet and a valve outlet is disclosed. The low-torque valve has a stationary valve element and a rotatable valve element. The stationary valve element and the rotatable valve element each may have a respective axially-facing mating surface in contact with each other. At least one opening in the rotatable valve element is rotationally positionable with respect to at least one opening in the stationary valve element between an open position and a closed position in order to regulate fluid flow from the valve inlet to the valve outlet based on an alignment of the openings of the stationary valve element and the rotatable valve element. In some forms, a torque threshold that is required to rotate the rotatable valve element into the open position from the closed position is less than 10 ounce-inches. 1. A low-torque valve for regulating fluid flow between a valve inlet and a valve outlet , the low-torque valve comprising:a stationary valve element;a rotatable valve element, the stationary valve element and the rotatable valve element each having a respective axially-facing mating surface in contact with each other and further each having at least one opening in which the stationary valve element and the rotatable valve element are rotationally positionable relative to one another between an open position and a closed position that regulate fluid flow from the valve inlet to the valve outlet based on an alignment of the openings of the stationary valve element and the rotatable valve element;wherein a torque threshold required to rotate the rotatable valve element into the open position from the closed position is less than 10 ounce-inches.2. The low-torque valve of further comprising:a valve housing having an internal chamber that receives the stationary valve element and the rotatable valve element, the internal chamber having at least one opening in a peripheral wall providing the valve outlet;an O-ring seal ...

MODULAR VALVE SYSTEM

A modular valve system () to be mounted to a support, in particular a support in an electric control cabinet, comprises at least two individual valve modules () which can be fluidly connected to each other and to which at least one control valve unit () can be coupled in each case. The modular valve system () includes a process fluid section () comprising process fluid lines () through which a process fluid can flow, a control fluid section () comprising control fluid lines in at least some of the valve modules () through which a control fluid can flow, and a membrane () which is shared by at least some of the valve modules () and designed for controlling the process fluid in the process fluid section () while forming membrane valves () and for sealing off the control fluid section. 11012161090783234128012905032. A modular valve system () to be mounted on a support , comprising at least two individual valve modules () which can be fluidly connected to each other and to which at least one control valve unit () can be coupled in each case , the modular valve system () including a process fluid section () comprising process fluid lines () through which a process fluid can flow , a control fluid section () comprising fluid lines () in at least some of the valve modules () , through which a control fluid can flow , and a membrane () which is shared by at least some of the valve modules () and is designed for controlling the process fluid in the process fluid section () while forming membrane valves () and for sealing off the control fluid section ().210344846485084. The modular valve system () according to claim 1 , wherein the control fluid lines () comprise control chambers () and activation lines () opening into these claim 1 , via which the control fluid can flow into the respective control chamber () claim 1 , for activating the respectively associated membrane valve () and for moving an associated membrane portion ().31062324212. The modular valve system () ...

VALVES WITH INTEGRATED ORIFICE RESTRICTIONS

A valve includes a valve body having first and second fluid ports extending to a valve cavity, a seat carrier subassembly installed in the valve cavity and including a seat carrier body with a first annular inner wall defining a first flow aperture aligned with the first fluid port and a valve seat disposed in an annular recess surrounding the first annular inner wall, and a second annular inner wall defining a second flow aperture aligned with the second fluid port. A valve element is disposed within the valve cavity and is movable between a closed position sealing against the valve seat and an open position permitting fluid flow across the valve seat between the first and second flow apertures. An outer periphery of an orifice restriction is seated against an interior portion of one of the first annular inner wall and the second annular inner wall.

VALVE CAVITY CAP ARRANGEMENTS

A valve cavity cap arrangement including an insert and a threaded cap is provided in combination with a valve body defining a valve cavity, a central passage, and at least one offset passage. The insert is received in the valve cavity and includes an inner annular sealing surface sized to seal against a portion of the recessed surface surrounding the central passage, an outer annular sealing surface sized to seal against an outer periphery of the recessed surface, surrounding the offset passage(s), and a solid web portion extending between the inner and outer annular sealing surfaces. The threaded cap includes an outer threaded portion threadably engaged with an internal threaded portion of the valve cavity, a central end portion configured to apply a first sealing force to the inner annular sealing surface, and an outer end portion configured to apply a second sealing force to the outer annular sealing surface. 1. In combination , a valve cavity cap arrangement and a valve body defining a valve cavity having a recessed surface from which a central passage and at least one radially offset passage extend , the valve cavity cap arrangement comprising:an insert received in the valve cavity, the insert including an inner annular sealing surface sized to seal against a portion of the recessed surface surrounding the central passage, an outer annular sealing surface sized to seal against an outer periphery of the recessed surface, surrounding the at least one radially offset passage, and a solid web portion extending between the inner annular sealing surface and the outer annular sealing surface; anda threaded cap having an outer threaded portion threadably engaged with an internal threaded portion of the valve cavity, a central end portion configured to apply a first sealing force to the inner annular sealing surface, and an outer end portion configured to apply a second sealing force to the outer annular sealing surface.2. The combination of claim 1 , wherein the ...

FRANGIBLE DIAPHRAGM FOR USE IN A VALVE MECHANISM

A frangible diaphragm for use in a valve mechanism, said frangible diaphragm including an actuator substance provided in, or on, the frangible diaphragm, wherein the actuator substance expands from a smaller volume to a larger volume on application of heat such that a force generated by the expansion causes the diaphragm to fracture. 1. A frangible diaphragm for use in a valve mechanism , said frangible diaphragm comprising:an actuator substance provided in, or on, the frangible diaphragm, wherein the actuator substance expands from a smaller volume to a larger volume on application of heat such that a force generated by the expansion causes the diaphragm to fracture.2. The frangible diaphragm of wherein the actuator substance is wax.3. The frangible diaphragm of wherein the wax is petroleum based.4. The frangible diaphragm of wherein the wax is a synthetic wax.5. The frangible diaphragm of claim 1 , wherein the frangible diaphragm further comprises:a heating element for heating the actuator substance.6. The frangible diaphragm of claim 4 , wherein the heating element is formed from a coil of resistance wire provided on claim 4 , or in claim 4 , the actuator substance.7. The frangible diaphragm of claim 1 , wherein the frangible diaphragm further comprises:one or more discs; andwherein the actuator substance is provided in, or on, at least one of the one or more discs such that, when activated, the actuator substance causes at least one of the one or more discs to fracture.8. The frangible diaphragm of wherein the actuator substance is located adjacent an outer edge of at least one of the one or more discs.9. The frangible diaphragm of claim 7 , further comprising means for rigidly attaching the one or more discs to each other.10. The frangible diaphragm of wherein the means for rigidly attaching the one or more discs to each other comprises a locking ring that is configured to be attached to a holder surrounding the one or more discs.11. A valve mechanism ...

TOP ENTRY AXIAL FLOW REGULATOR

An axial flow regulator includes a lateral access port through a portion of the valve body that provides access to a valve seat assembly and/or other portions of the valve trim without having to remove or uncouple the outlet flange or the inlet flange from the adjacent pipe sections. The lateral access port may extend through an outlet flange portion of the valve body and is configured to allow a valve seat assembly to be laterally inserted into and removed from the outlet flange. A valve seat assembly which may be configured for installation in the axial flow regulator includes a pad holder and a support ring for the pad holder that is separable from the pad holder. The pad holder may have alignment struts projecting radially outwardly from a pad support body. The support ring may include strut receivers that slidably receive the alignment struts of the pad holder. 1. An axial flow regulator , comprising:a valve body defining a fluid flow path along an axis therethrough from an inlet to an outlet;a valve trim disposed in an operative position along the fluid flow path inside the valve body configured to control the flow of fluid along the fluid flow path; anda lateral access port through a portion of the valve body,wherein the lateral access port allows access to portions of the valve trim laterally through the valve body, and wherein portions of the valve trim can be removed from or inserted into the valve body through the lateral access port.2. The axial flow regulator of claim 1 , wherein the valve trim comprises a valve sleeve and a valve seat assembly claim 1 , wherein the valve sleeve and the valve seat assembly are aligned along the axis claim 1 , and wherein the valve sleeve is configured to open and close with axial movement along the axis toward and away from the valve seat assembly.3. The axial flow regulator of claim 2 , wherein the lateral access port extends through a radial side wall of an outlet flange portion of the valve body.4. The axial flow ...

Diaphragm and diaphragm valve

A diaphragm with excellent durability is provided which can restrain occurrence of a crack resulting from up and down movements of the diaphragm with opening and closing of a flow channel of a diaphragm valve, and a diaphragm valve having this diaphragm. The diaphragm is attached to a diaphragm valve, comprising a membrane part deforming and moving up and down with opening and closing of a flow channel and a flange part which is provided around said membrane part and sandwiched between a valve body and a bonnet, wherein the diaphragm is formed in a curved surface shape where the shape before deformation of the lower surface of said membrane part descends and then ascends from an outer edge part towards a central part.

REGULATING DEVICE

A regulating device may include a housing that defines an inlet chamber and an outlet chamber, with a flow restriction seat between the inlet chamber and the outlet chamber. A flow restriction valve is movable relative to the flow restriction seat to adjust the flow between the inlet chamber and the outlet chamber of the regulating device. A servo valve having a servo chamber may be used to adjust the position of the flow restriction valve. The servo chamber may be fluidly coupled to the inlet chamber though a fixed flow restriction and to the outlet chamber though an adjustable flow restriction. A stepper motor may be used to adjust the servo valve to adjust the adjustable flow restriction between the servo chamber and the outlet chamber. This causes a change of the servo pressure, which moves the flow restriction valve and adjusts the flow of the regulating device. 1. A regulating device , comprisinga housing providing a first chamber in which a first pressure is present and a second chamber in which a second pressure is present;a flow restriction valve positioned in the housing, wherein the flow restriction valve comprises a valve body acting together with a flow restriction seat, and wherein the flow restriction valve adjusts the flow from the first chamber into the second chamber;a servo valve positioned in the housing, wherein the servo valve comprises a valve body attached to a membrane, wherein the membrane defines at least part of a servo chamber in which a servo pressure is present, wherein the servo chamber is connected to the first chamber though a fixed flow restriction element, and the servo chamber is connected to the second chamber though an adjustable flow restriction element; anda stepper motor for moving the valve body of the servo valve, thereby adjusting the adjustable flow restriction element, wherein the adjustment of the adjustable flow restriction element causes a change of the servo pressure present in the servo chamber which is used to ...

HYDRAULIC SERVO-ACTUATED VALVE HAVING A SIMPLIFIED ASSEMBLY

A hydraulic servo-actuated valve with a valve body having a first duct, a second duct, a main opening arranged on the valve body, an actuator arranged at the main opening and adapted to open and close the valve is provided. The valve has a lid arranged in an operative position on the valve body at the main opening, and the lid has a central zone concurring with the actuator to delimit an actuating chamber. The first duct has a first through-hole, and the lid has a second through-hole arranged in a position corresponding to the first through-hole, when the lid is arranged on the valve body in an operative position. The central zone of the lid also has a third through-hole. The lid has first connecting means adapted to allow a flanged and removable connection of a first operative member only to the lid, and the first connecting means is arranged near the second through-hole and the third through-hole. 1. A hydraulic servo-actuated valve comprising a valve body comprising a first duct , with a first opening , a second duct , with a second opening , a main opening , arranged on the valve body between the first duct and the second duct , an actuator arranged at the main opening and adapted to make an actuating movement between an opening position , which allows the flow between the first duct and the second duct , and a closed position preventing the flow between the first duct and the second duct , said valve comprising a lid , arranged in an operative position on the valve body at the main opening , said lid having a central zone concurring with the actuator to delimit an actuating chamber , the first duct having a first through-hole , the lid having a second through-hole arranged in a position corresponding to the first through-hole , when the lid is arranged on the valve body in an operative position , the central zone of the lid having a third through-hole , wherein said lid comprises first connecting means adapted to allow a flanged and removable connection of a ...

CLAMP RING FOR WELDED DIAPHRAGMS

A diaphragm sealed flow cavity comprises a first body comprising a support surface, a diaphragm comprising an outer portion that is joined by a weld to the first body, a clamped portion, and an inner portion that is movable along an axis, with the clamped portion of the diaphragm being compressed between the bearing surface and the support surface. The diaphragm sealed flow cavity may include a cylindrical body having a crimped portion for joining the cylindrical body to the first body. The diaphragm sealed flow cavity may also include a member that applies a live load to the clamped portion of the diaphragm. In the exemplary embodiments, the diaphragm sealed flow cavity may be realized as part of a diaphragm flow control valve having a valve body, diaphragm and a housing. 1. A diaphragm valve , comprising:a first body comprising a support surface and a valve seat, a diaphragm comprising an outer portion that is joined by a weld to said first body, a clamped portion, and an inner portion that is movable along an axis to contact said valve seat to close the diaphragm valve,a second body comprising an outer portion having a bearing surface and a disk comprising a central opening, said disk extends radially inward from said outer portion to said central opening, said disk having a width that is less than a width of said outer portion,a load applying member that applies a force against a portion of said disk that is radially inward of said bearing surface,said clamped portion of said diaphragm being compressed between said bearing surface and said support surface,wherein said force that is applied to said portion of said disk by said load applying member produces a load that compresses said clamped portion of said diaphragm between said bearing surface and said support surface.2. The valve of wherein said diaphragm comprises a generally disk shaped body having a peripheral edge claim 1 , with said weld being positioned near or at said peripheral edge.3. The valve of ...

SHUTOFF-OPENING DEVICE

A first on-off valve and a second on-off valve each are a two-port valve. A first passage block is provided with a first on-off valve-corresponding inflow passage and a first on-off valve-corresponding outflow passage . A second passage block is provided with a second on-off valve-corresponding inflow passage and a second on-off valve-corresponding outflow passage . The second on-off valve-corresponding outflow passage is in communication with an upstream side portion of the first on-off valve-corresponding outflow passage via a communicating passage formed in the first passage block . An orifice is provided between the second on-off valve-corresponding outflow passage and the communicating passage 1. A shutoff-opening device comprising:a first on-off valve disposed on a downstream side;a second on-off valve adjacent to an upstream side of the first on-off valve; anda passage block supporting the first on-off valve and the second on-off valve, whereineach of the first on-off valve and the second on-off valve is a two-port valve, and the passage block is provided with a first on-off valve-corresponding inflow passage, a first on-off valve-corresponding outflow passage, a second on-off valve-corresponding inflow passage, and a second on-off valve-corresponding outflow passage, andthe second on-off valve-corresponding outflow passage is in communication with the first on-off valve-corresponding outflow passage via a communicating passage formed in the passage block, and a throttling portion is provided between the second on-off valve-corresponding outflow passage and the communicating passage.2. The shutoff-opening device according to claim 1 , further comprising:a third on-off valve adjacent to an upstream side of the second on-off valve and supported by the passage block, whereinthe third on-off valve is a two-port valve, the passage block is provided with a third on-off valve-corresponding inflow passage, a third on-off valve-corresponding outflow passage, and a ...

VALVE ARRANGEMENT

A valve arrangement having a main valve and having a pilot valve which is provided for controlling the main valve and which is inserted into a pilot valve receptacle in an insertion direction, wherein, through closure of the pilot valve, a pressure is able to be built up within a pressure chamber which is closed off by a diaphragm, whereby a valve seat between a main valve inlet and a main valve outlet is able to be closed off. By opening the pilot valve, it is possible to set a release of pressure within the pressure chamber by water flowing away via an inflow, connected to the pressure chamber, of the pilot valve receptacle and via a pilot valve inlet, adjoining the latter and formed by a main body of the pilot valve. A pilot valve outlet, formed by the main body, and via an outflow, adjoining said pilot valve outlet, into the main valve outlet, opens into the main valve outlet on the outflow side of the diaphragm. The pilot valve inlet and the pilot valve outlet are arranged offset from one another along a longitudinal axis of the pilot valve. 115075100. A valve arrangement ( , , , ) , comprising:{'b': 2', '3', '4', '5', '6', '3', '7', '6', '6, 'a main valve () including a valve seat () between a main valve inlet () and a main valve outlet (), a diaphragm () which selectively closes off and opens up the valve seat (), and a pressure chamber () which is closed off by the diaphragm () and by which the diaphragm () is switchable via application of pressure;'}a pilot valve receptacle formed on or connected to the main housing{'b': 8', '7', '5', '2', '8', '9', '10', '11', '10', '8', '11', '9', '12', '13, 'a pilot valve () configured to control a release of pressure of the pressure chamber () into the main valve outlet () of the main valve (), the pilot valve () including a main body () on which a pilot valve inlet () and a pilot valve outlet () are formed, the pilot valve inlet () is, via the pilot valve (), selectively connectable to the pilot valve outlet () and ...

Valve Apparatus, System and Method

A valve apparatus and system is provided. The valve apparatus includes a housing having a fluid inlet and a fluid outlet. A support assembly is attached to the housing, the support assembly including a positioning chamber located over the outlet. A diaphragm assembly is moveably attached to the support assembly. The diaphragm assembly includes a piston having one end slideably mounted in the positioning chamber, and a diaphragm attached to the other end of the piston. A sealing element is located about a perimeter of the diaphragm, and a biasing element is arranged to contact the support assembly and the diaphragm assembly, thereby urging at least a portion of the sealing element against the fluid outlet, providing a fluid-tight seal. 1. A valve apparatus , comprising:a housing having an inlet aperture and an outlet aperture;a support assembly coupled to the housing, the support assembly comprising a positioning chamber located downstream of the outlet aperture and at least two support elements extending downstream of the outlet aperture; an elongated member having a distal end slideably mounted in the positioning chamber;', 'a diaphragm coupled to the elongated member, opposite the distal end;', 'a sealing element located about a perimeter of the diaphragm; and, 'a diaphragm assembly moveably coupled to the support assembly, the diaphragm assembly comprisinga biasing element arranged to contact the support assembly and the diaphragm assembly, thereby urging at least a portion of the sealing element against the outlet aperture.2. The valve apparatus of claim 1 , where the biasing element comprises a coil spring.3. The valve apparatus of claim 1 , where the support assembly further comprises:at least two struts coupled to the housing; anda chamber locating member coupled to the at least two struts and the positioning chamber, the chamber locating member structured to locate the positioning chamber downstream of the outlet aperture.4. The valve apparatus of claim 1 , ...

PINCH VALVE FOR DISPENSING LIQUID

A pinch valve for a liquid-dispensing unit or machine has a pinch valve body to which is connected a pinch bar assembly. The pinch bar assembly has two axes of rotation and can easily be moved by a user from a pinch position, where the pinch bar is the displacement path of a plunger, to an open position where it is not in the displacement path. A liquid-dispensing tube can be installed in the pinch valve between the pinch bar and the plunger. 1. A pinch valve body for mounting to liquid-dispensing unit and for cooperating with a plunger , the pinch valve body comprising:a housing portion defining a displacement path for the plunger to move within the housing portion;a pinch bar;an articulated joint having two axes of rotation, the pinch bar secured to the housing portion through the articulated joint, the housing portion, the pinch bar and the articulated joint configured for movement of the pinch bar between a pinch position, where the pinch bar is in the displacement path, to an open position, where the pinch bar is out of the displacement path.2. The pinch valve body of wherein the articulated joint is a universal joint.3. The pinch valve body of wherein the articulated joint is a ball-in-socket joint.4. The pinch valve body of wherein the articulated joint is a flexure joint.5. The pinch valve body of wherein the flexure joint includes an elastomer material.6. The pinch valve body of wherein the housing portion includes a keeper configured to hold the pinch bar when the pinch bar is in the pinch position.7. The pinch valve body of wherein the keeper is defined by a recess in the housing portion.8. The pinch valve body of wherein the housing portion defines a recess to surround a dispensing tube installed in the pinch valve body.9. The pinch valve body of wherein the pinch bar has a circular cross-section.10. The pinch valve body of wherein the pinch bar defines a flat surface for receiving strikes from the plunger.11. A pinch valve body for mounting to liquid- ...

PINCH VALVE FOR DISPENSING LIQUID

A pinch valve for a liquid-dispensing unit or machine has a pinch valve body to which is pivotally secured a closure in a clamshell arrangement. The valve body and the closure define a passageway that can hold a liquid-dispensing tube when the pinch valve is in a closed configuration. The axis about which the closure pivots is perpendicular to the passageway. 1. A pinch valve for a liquid-dispensing unit , the pinch valve comprising:a valve body for mounting to a liquid dispenser unit; anda closure pivotally secured to the valve body in a clamshell arrangement, the valve body and the closure configured to define a passageway to hold a liquid-dispensing tube when the pinch valve is in a closed configuration, the valve body and the insert further configured for rotation of the closure relative to the valve body, the rotation being about a rotation axis that is substantially perpendicular to the passageway.2. The pinch valve of wherein the valve body and the closure have counterpart mating elements to releasably secure the closure to the valve body when the pinch valve is in the closed configuration.3. The pinch valve of wherein the counterpart securing features include a post connected to the closure and a slot defined on the valve body claim 2 , the slot to retain the post when the pinch valve is in the closed configuration.4. The pinch valve of wherein the pinch valve is configured for translation of the closure perpendicular to the rotation axis claim 3 , the translation of the closure and the rotation of the closure to position the post into the slot to removably secure the closure to the valve body.5. The pinch valve of further comprising a pivot pin secured to the valve body and oriented collinearly to the rotation axis claim 4 , the closure defining an aperture claim 4 , the pivot pin traversing the aperture claim 4 , the aperture configured for the rotation of the closure about the pivot pin claim 4 , the aperture also configured for the translation of the ...

DIAPHRAGM VALVE WITH WELDED DIAPHRAGM SEAT CARRIER

A diaphragm valve with an assembly or cartridge that facilitates replacement of the diaphragm, the valve seat or both. The assembly may be a valve assembly having a diaphragm, a seat carrier and a valve seat that are combined into a discrete subassembly or cartridge for a diaphragm valve. The assembly as a discrete cartridge can be easily removed and replaced in order to change out the diaphragm or the valve seat or both. In one embodiment, the diaphragm has a perimeter that is welded to one side of the seat carrier. Flow capacity is favored by providing a gap between a seat carrier and a flow port of the valve body where the gap in part defines a flow area that is the same or greater than the flow area of the flow port. Methods for installing and replacing a valve assembly into a valve body are also disclosed. 1. A diaphragm valve , comprising:a valve body comprising a valve cavity, a first port and a second port, said first port and said second port being open to said valve cavity,a valve assembly disposed to seal said valve cavity, said valve assembly comprising a valve seat, a seat carrier and a diaphragm, said valve seat being retained with said seat carrier and said diaphragm being attached to a first side of said seat carrier by a weld, said valve seat being disposed to surround said first port, said valve seat comprising a flow passage in fluid communication with said first port.2. The diaphragm valve of wherein said diaphragm comprises a domed circular disk and is welded about a periphery of said diaphragm to said seat carrier.3. The diaphragm valve of wherein said seat carrier comprises an annular body having an outer rim and a web that extends radially inward from said outer rim to a central opening claim 1 , said central opening being aligned with said first port when said valve assembly is installed in said valve body.4. The diaphragm valve of wherein said web comprises a plurality of flow passages separated by lands about said central opening.5. The ...

CLOG RESISTANT VALVE PORT AND METHODS RELATING TO SAME

An irrigation valve has a valve body with an inlet passage, an outlet passage, a valve seat intermediate the inlet passage and the outlet passage and a control chamber exit or bypass passage terminating in a surface that defines a portion of the outlet passage, the valve body including at least one of a recess and a rib for hindering clogging of the bypass passage. Related methods for hindering clogging of the control chamber or exit bypass passage are also disclosed. 1. A clog resistant valve body comprising:an inlet passage;an outlet passage having a longitudinal axis and a stop positioned therein for ceasing forward progress of a pipe inserted into the outlet passage, the stop defining at least one of a recess and a rib;a valve seat intermediate the inlet passage and outlet passage; anda bypass passage positioned generally transverse to the longitudinal axis of the outlet passage and terminating at one end proximate the at least one of a recess and a rib so that the at least one of a recess and a rib help prevent adhesive from clogging the bypass passage.2. The clog resistant valve body of wherein the stop defines a flat wall extending from an inner surface of the valve body and having a downstream face that faces a downstream opening of the outlet passage claim 1 , the stop together with the inner surface defining the outlet passage and the recess forming a depression in the outlet passage that surrounds the bypass passage on at least three sides.3. The clog resistant valve body of wherein the stop defines first and second side walls and a recessed upstream wall located between the first and second side walls to form the depression surrounding the bypass passage on three sides claim 2 , the depression leaving an unobstructed downstream passage for fluid exiting the bypass passage to flow through unobstructed while positioning the side walls close enough to one another to prevent an adhesive applicator from coming into contact with the bypass passage.4. The clog ...

Diaphragm Valve

A diaphragm valve includes a valve body, a diaphragm, a bonnet, an operation mechanism, and a fixing mechanism. The fixing mechanism includes a clamping member for integrally sandwiching and fixing, from both right and left sides, circumferential edges of both the bonnet and the valve body. A circular pressing member for pressing a circumferential edge of the diaphragm from above is interposed between the diaphragm and the bonnet and has convex portions and concave portions. The convex portions fit into notches provided at the circumferential edge of the diaphragm or the valve body, and the concave portions are fitted by protrusions provided at the circumferential edge of the diaphragm or the valve body.

Variable flow controlled diaphragm valve based on shape memory alloy

A valve is provided and includes a valve body defining a pathway, a diaphragm and a wire. The diaphragm is configured to assume first or second conditions in which the diaphragm blocks or permits fluid flow through the pathway, respectively. The diaphragm is biased toward assumption of the first condition. The wire is coupled to the diaphragm. The wire has an uncontracted length in an unheated state whereby the wire permits assumption of the first condition by the diaphragm due to the bias and a contracted length in a heated state whereby the wire pulls the diaphragm toward assumption of the second condition in opposition to the bias.

DIAPHRAGM VALVE HOUSING AND METHOD FOR PRODUCING A DIAPHRAGM VALVE HOUSING

A diaphragm valve having at least two axially extending fluid passageways, which are aligned with each other and which extend towards each other, and a separation wall between the fluid passageways provides for the separation wall, if viewed in the longitudinal sectional view, to have a flatter and a steeper section for delimiting the fluid passageways. Moreover, a method for producing a diaphragm valve housing is provided. 1. A diaphragm valve housing comprising at least two axially extending fluid passageways , which are aligned with each other and which extend towards each other , a separation wall between the fluid passageways , which has a free and towards a valve chamber and with its free end forms a valve seat , which is located between mouth openings of the fluid passageways that are next to each other , wherein the fluid passageways each have a cylindrical axial section and a passageway end section , the passageway end sections following and extending laterally relative to the axial direction of the axial sections and obliquely in the direction of each other towards the valve chamber , the end sections being separated by the separation wall , wherein , for delimiting the fluid passageways , the separation wall has for each fluid passageway , if viewed along an axial longitudinal section , a tapered section that is flatter with respect to the axial direction and is arranged close to the valve seat , and a steeper section with respect to the axial direction which is located adjacent to the tapered section.2. Diaphragm valve housing as claimed in claim 1 , wherein at least one of the tapered section and the steeper section is formed claim 1 , if viewed along the longitudinal section claim 1 , by a straight section.3. The diaphragm valve housing according to claim 1 , wherein the tapered section is a plane surface.4. The diaphragm valve housing according to claim 1 , wherein the steeper section claim 1 , at least in sections is claim 1 , at least one of a ...

DIAPHRAGM VALVE WITH METAL SEAT

A diaphragm valve includes a valve body defining a fluid passageway, a diaphragm assembled with the valve body, and an annular metal valve seat disposed on the valve body surrounding the fluid passageway, the valve seat defining an inverted frustoconical seat sealing surface for sealing against the diaphragm when the diaphragm is in a closed position. 1. A diaphragm valve comprising:a valve body defining a fluid passageway;a diaphragm for sealing the fluid passageway; andan annular metal valve seat disposed on the valve body surrounding the fluid passageway and defining an inverted frustoconical seat sealing surface for sealing against the diaphragm when the diaphragm is in a closed position.2. The diaphragm valve of claim 1 , wherein the valve seat is integral with the valve body.3. The diaphragm valve of claim 1 , wherein the valve seat is monolithically formed with the valve body.4. The diaphragm valve of claim 1 , wherein the valve seat is assembled with the valve body.5. (canceled)6. The diaphragm valve of claim 4 , further comprising a valve seat cartridge removable from the valve body claim 4 , the valve seat being disposed on an upper surface of the valve seat cartridge.7. The diaphragm valve of claim 6 , wherein the valve seat is integral with the valve seat cartridge.8. The diaphragm valve of claim 6 , wherein the valve seat is monolithically formed with the valve seat cartridge.9. The diaphragm valve of claim 6 , wherein the valve seat is assembled with the valve seat cartridge.10. (canceled)11. The diaphragm valve of claim 6 , wherein the valve seat cartridge comprises an annular body port seal disposed on a lower surface of the valve seat cartridge opposite the upper surface claim 6 , the body port seal being secured in sealing engagement with an annular upper surface of the valve body surrounding the fluid passageway.12. The diaphragm valve of claim 11 , wherein the body port seal is integral with the valve seat cartridge.13. The diaphragm valve of ...

METHOD FOR DIAGNOSING A DIAPHRAGM VALVE, AND DIAGNOSIS SYSTEM FOR A DIAPHRAGM VALVE

The invention relates to a method for diagnosing a diaphragm valve having the following steps: a) providing at least one first quantity that characterizes a valve diaphragm, at least one second quantity that characterizes the diaphragm valve, and at least one third quantity that characterizes operation of the diaphragm valve to a determination device; determining a quantity that characterizes a current state of the valve diaphragm, in particular a current wear, from the first, second, and third quantities by means of the determination device by using at least one algorithm. 1. Method for diagnosing a diaphragm valve comprising the following steps:a) providing at least one first quantity that characterizes a valve diaphragm, at least one second quantity that characterizes the diaphragm valve or at least one of the components thereof that are not the valve diaphragm, and at least one third quantity that characterizes operation of the diaphragm valve to a determination device;b) determining a quantity that characterizes a current state of the valve diaphragm, in particular a current wear, from the first, second and third quantities by means of the determination device by using at least one algorithm.2. Method according to claim 1 , characterized in that the determined quantity characterizes at least one of a remaining lifetime of the valve diaphragm and an equivalent quantity claim 1 , and in that claim 1 , if the determined remaining lifetime or the equivalent quantity is less than a limit value claim 1 , the determination device then triggers an action.3. Method according to claim 1 , characterized in that a first quantity is provided by visual surface inspection in step a).4. Method according to claim 1 , characterized in that the at least one algorithm is changed claim 1 , taking into account at least one of a first quantity provided by visual surface inspection and another analysis of the valve diaphragm claim 1 , and a quantity that characterizes the actual ...

COMPOSITE EXPLOSION-PROOF VALVE, COVER PLATE ASSEMBLY, AND BATTERY

The present disclosure provides a composite explosion-proof valve mounted on a battery cover plate assembly, a cover plate assembly containing the explosion-proof valve, and a battery. The composite explosion-proof valve includes at least two layers of explosion-proof membranes and a flame-retardant structure located between the at least two layers of explosion-proof membranes. When the battery (such as internal temperature or internal pressure) is abnormal, the first layer of explosion-proof membrane is opened. Under the action of the flame-retardant structure, the composite explosion-proof valve is in a local oxygen-deficient state, and it is difficult for a high-temperature combustible matter ejected from the battery to ignite under the local oxygen-deficient condition. Therefore, the composite explosion-proof valve is capable of reliving pressure in time when the battery is abnormal and effectively preventing external oxygen from entering, thereby preventing occurrence of battery combustion and explosion and avoiding secondary disasters and larger abnormity. 1. An explosion-proof valve , comprising at least two layers of explosion-proof membranes and a flame-retardant structure located between the at least two layers of explosion-proof membranes.2. The explosion-proof valve according to claim 1 , further comprising a base body claim 1 , wherein the base body is provided with a pressure relief hole claim 1 , and the at least two layers of explosion-proof membranes are respectively mounted at two ends of the pressure relief hole; and the flame-retardant structure is arranged in the pressure relief hole between the at least two layers of explosion-proof membranes.3. The explosion-proof valve according to claim 1 , wherein the explosion-proof membranes are pressure-controlled explosion-proof membranes.45.-. (canceled)6. The explosion-proof valve according to claim 1 , wherein the explosion-proof membranes are temperature-controlled explosion-proof membranes.78.-. ( ...

Diaphragm Disk

A diaphragm type flush valve for use with toilet devices such as urinals and water closets that includes a valve member, a diaphragm, a guide member extends downwardly from the diaphragm, and a disk positioned on top of the diaphragm. The disk is threadably attached to the guide member and functions to secure the diaphragm, the disk, and the guide member into the valve member. The disk includes a rigid body made of a composite material and a seal member made of an adhesive and a thin layer of rubber, with the seal member having a portion on an upper surface of the disk for sealing contact with a relief valve. The disk also includes a plurality of spaced protrusions and inwardly directed on its upper surface in order to add accuracy and stability to the diaphragm assembly. 1. A diaphragm flush valve for use with toilet devices such as urinals and water closets , including a body having an inlet and an outlet , a valve seat between said inlet and said outlet , and a valve member movable to a closing position on said valve seat to stop flow between said inlet and said outlet , said valve member including , a diaphragm peripherally attached to said body , a pressure chamber above said diaphragm for holding said valve member on said valve seat ,a disk positioned on top of said diaphragm, a guide member extending downwardly from said diaphragm, said disk being attached to said guide member connecting said diaphragm, said disk, and said guide member forming said valve member,said disk including a rigid body and a seal member, said seal member having a portion on an upper surface of said disk for sealing contact with a relief valve extending through said disk and said guide member, said disk having a portion on a lower surface thereof for contact with said diaphragm, said disk having a plurality of inwardly directed protrusions,wherein said rigid body is made of a composite material.2. The diaphragm flush valve of claim 1 , wherein the composite material comprises a glass ...

PRESSURE INDICATING DEVICE

The invention relates to a pressure indicating device for indicating a pressure in a first fluid system, said pressure indicating device including a first port via which it is fluidically connected to the first system, which pressure indicating device furthermore comprises a cylinder with a preloaded piston that can be displaced therein in an axial direction, during which movement fluid contained in the first system can act on the piston surface. The invention is characterized in that said piston has an opening in its piston surface, which opening can be made to communicate with a second system via a second port, said piston comprising a diaphragm which is impermeable to a first fluid but permeable to a second fluid, said diaphragm separating the first port from the second port. 1. A pressure indicating device for indicating a pressure in a first fluid system , said pressure indicating device comprising:a first port via which said pressure indicating device is fluidically connected to the first fluid system,a cylinder in which a preloaded piston can be displaced in an axial direction, during which movement fluid contained in the first fluid system can act on the piston surface, wherein said piston has an opening in its piston surface, which opening can be made to communicate with a second system via a second port, said piston comprising a diaphragm which is impermeable to a first fluid but permeable to a second fluid, said diaphragm separating the first port from the second port.2. The pressure indicating device as claimed in claim 1 , wherein the diaphragm is impermeable to a liquid and permeable to a gas or a gas mixture.3. The pressure indicating device as claimed in claim 1 , wherein said diaphragm is permeable to air claim 1 , but impermeable to water or oil.4. The pressure indicating device as claimed in claim 1 , wherein the second port is suitable for creating a connection which is in communication with the environment/ambient atmosphere.5. The pressure ...

CLOSURE WITH AN ELASTICALLY DEFORMABLE ELEMENT

A valve usable to repeatedly open and close a filling-emptying channel associated with a a beverage container includes a valve body (). The valve body has a central ring () supported by arms (). The ring includes a hole (). The valve has a deformable valve plate () that includes an outer circumferential beveled edge (). The valve plate further includes a central conical part () configured to engage in the hole. When in blocking relation of the channel, the conical part is engaged in the hole and the valve plate has a convex cup shape. Pulling outwardly on the valve body, changes the convexity of the valve plate and enables it to be disengaged from the valve body. 1. A valve configured for opening and closing a filling-emptying channel operatively connected to a liquid holding container , comprising: [ bounds the filling-emptying channel', 'has a shape of a truncated cone with a base inward relative to the container, and wherein the annular inner surface includes a largest inner diameter,, 'an annular inner surface, wherein the annular inner surface'}, 'wherein the boss and the hole are centrally located relative to the annular inner surface,', 'a ring, wherein the ring includes a boss and a hole,'}, 'at least two arms, wherein the at least two arms operatively connect the annular inner surface and the ring,, 'a valve body, including'} an outer circumferential edge, wherein a plate diameter of the valve plate at the outer circumferential edge is greater than the largest inner diameter,', 'a centrally located inward extending conical part, configured to extend in deformed engaged relation in the hole,', 'an area of circumferentially outwardly narrowed thickness,, 'an elastically deformable valve plate, wherein the valve plate includes'}wherein in blocking relation of the filling-emptying channel, the conical part extends in the hole and the outer circumferential edge extends within and in engaged relation with the inner annular surface, whereby the valve plate has a ...

VALVE

This invention discloses a valve including a body, an upper membrane, a lower membrane and a positioning block. The body has an upper channel, a lower channel, an accommodation space and a valve groove. The accommodation space defines an upper opening and a lower opening for respectively communicating with the upper channel and the lower channel. The valve groove is near the intersection of the lower channel and the accommodation space respectively communicating therewith. The upper and the lower membrane block the upper opening of the accommodation space and the lower opening. The positioning block is disposed between the upper membrane and the lower membrane and is able to push the lower membrane into the valve groove and abut against a sidewall of the valve groove. The valve is able to block the flow of water in the valve when the water flow is needed to be cut off. 1. A valve , comprising:a body having an upper channel, a lower channel, an accommodation space and a valve groove; the accommodation space defining an upper opening and a lower opening for respectively communicating with the upper channel and the lower channel; the valve groove being adjacent to the lower channel and the accommodation space and communicated therewith respectively, and a sidewall of the valve groove being an inclined surface inclined outwardly from bottom to top thereof;an upper membrane disposed in the body and blocking the upper opening of the accommodation space, the upper membrane being a flexible and waterproof material;a lower membrane disposed in the body and blocking the lower opening of the accommodation space, the lower membrane being a flexible and waterproof material; anda positioning block disposed between the upper membrane and the lower membrane and partially coated between them, wherein corresponding to the valve groove, the positioning block extends a stop block downwardly, so that when the positioning block moves downwardly, the stop block is able to push the lower ...

Unitary Diaphragm

Disclosed are systems and methods for a unitary diaphragm assembly is for use in flush valves. The diaphragm assembly may have a flexible diaphragm which includes a seating portion and a mounting portion at the outer peripheral edge. A flow ring may be positioned adjacent to the seating portion of the diaphragm. An elongated barrel member may extend from the diaphragm in a longitudinal direction and may include a plurality of radial supports positioned circumferentially around the outer surface of the barrel member and along a portion of the length of the barrel member. 1. A one-piece unitary diaphragm assembly for use in a flush valve , the assembly comprising:an elongated barrel member having a body defining a passageway;an annular flexible diaphragm disposed about the elongated barrel member, and a mounting portion at the peripheral edge of the annular flexible diaphragm for mounting said diaphragm assembly within the flush valve;a radial support positioned circumferentially around the outer surface of said barrel member and extending along at least a portion of the longitudinal length of said barrel member;a relief valve seat at the upper end of said elongated barrel member, said relief valve seat adapted for receiving a relief valve;wherein the elongated barrel member is constructed of a first predetermined material; andwherein the annular flexible diaphragm is constructed of a second predetermined material different from the first predetermined material.2. The one-piece unitary diaphragm assembly of claim 1 , further comprising a relief valve having a stem and a sealing member disposed at the upper end of said stem claim 1 , wherein a sealing material is disposed on the lower surface of the sealing member adapted for sealing against said relief valve seat.3. The one-piece unitary diaphragm assembly of claim 1 , wherein the first predetermined material and the second predetermined material are co-formed.4. The one-piece unitary diaphragm assembly of claim 1 , ...

Diaphragm and Diaphragm Valve

A durable diaphragm valve has a single-layer structure consisting of rubber materials. The single-layer structure has a membrane part deforming and moving up and down with opening and closing of a flow channel and a flange part which is provided around said membrane part and sandwiched between a valve body and a bonnet. The flange part has an annular ridge consisting of an upper ridge protruding upward and a lower ridge protruding downward from a position corresponding to said upper ridge. The upper ridge has an inner upper ridge and an outer upper ridge with its protruding height being lower than the inner upper ridge, which are consecutively formed in a staircase pattern. 1. A diaphragm attached to a diaphragm valve ,having a single-layer structure comprising rubber materials, and comprising;a membrane part deforming and moving up and down with opening and closing of a flow channel and a flange part which is provided around said membrane part and sandwiched between a valve body and a bonnet,wherein said flange part has an annular ridge,wherein said annular ridge comprises an upper ridge protruding upward and a lower ridge protruding downward from a position corresponding to said upper ridge,wherein said upper ridge has an inner upper ridge and an outer upper ridge with its protruding height being lower than the inner upper ridge, which are consecutively formed in a staircase pattern.2. The diaphragm of claim 1 , wherein the height of the inner vicinity part of said inner upper ridge is lower than that of said outer upper ridge.3. The diaphragm of claim 1 , wherein said lower ridge has an inner lower ridge and an outer lower ridge with its protruding height being higher than the inner lower ridge claim 1 , which are consecutively thrilled in a staircase pattern.4. The diaphragm of claim 3 , wherein the height of said inner lower ridge is higher than that of the outer vicinity part of said outer lower ridge.5. The diaphragm of any of claim 1 , wherein the diaphragm ...

MICROFLUIDIC PUMP AND VALVE STRUCTURES AND FABRICATION METHODS

Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen from the following description, the microfluidic structures formed with this diaphragm provide easy to manufacture and robust systems, as well readily made components such as valves and pumps. 2. The microfluidic planar valve of claim 1 , wherein the through-hole is centered in the valve seat.3. The microfluidic planar valve of claim 1 , wherein the fluidic microfeature is a microfluidic channel.4. The microfluidic planar valve of claim 4 , wherein the fluidic microfeature is a plurality of disconnected microfluidic channels each having an end fluidically intersecting a bond-free region of the only the single claim 4 , non-elastomeric membrane.5. The microfluidic planar valve of claim 1 , wherein the only the single claim 1 , non-elastomeric substrate and the only the single claim 1 , non-elastomeric membrane are the same material.6. The microfluidic planar valve of claim 1 , wherein the only the single claim 1 , non-elastomeric membrane has a Young's modulus between about 2 Gpa to 4 Gpa.7. The microfluidic planar valve of claim 1 , wherein the through-hole comprise a membrane-seating region.8. The microfluidic planar valve of claim 1 , wherein the only the single claim 1 , non-elastomeric membrane is solvent bonded to the upper surface of the only the single claim 1 , non-elastomeric substrate.9. The microfluidic planar valve of claim 1 , wherein the only the single claim 1 , non-elastomeric substrate and the only the single claim 1 , non-elastomeric membrane are made from one of polymethyl methacrylate claim 1 , polystyrene claim 1 , polycarbonate claim 1 , and acrylic.10. The microfluidic planar valve of claim 8 , wherein the only the single claim 8 , non-elastomeric membrane is solvent bonded to the ...

A VALVE ASSEMBLY

The invention relates to a valve element () for allowing a user to drink from an upper rim () of a valve assembly () comprising a body () comprising a resiliently deformable portion () having a rim (), the rim () located in a first plane, wherein at least the rim () of the resiliently deformable portion () is configured to deform substantially inwardly, to be located in a second plane, into a sealing position within a valve assembly (), and further wherein a portion () of the rim () is configured to lift out of the second plane upon application of a suction force to an upper surface () of a corresponding portion () of the resiliently deformable portion (). The invention also relates to a valve assembly () comprising a valve element () according to the invention. 1. A valve element for allowing a user to drink from an upper rim of a valve assembly comprising:a body comprising a resiliently deformable portion comprising a rim, the rim located in a first plane,wherein at least the rim of the resiliently deformable portion is configured to deform inwardly, to be located in a second plane, into a sealing position,wherein a portion of the rim is configured to lift out of the second plane upon application of a suction force to an upper surface of a corresponding portion of the resiliently deformable portionand further wherein the resiliently deformable portion has a lower surface, the lower surface comprising a sealing surface configured to provide an abutment with a portion of a drinking vessel.2. The valve element of claim 1 , wherein the resiliently deformable portion is at an upper edge of the body.3. The valve element of claim 1 , wherein the body is substantially frustoconical.4. The valve element of claim 1 , wherein the body further comprises a baffle claim 1 , the baffle comprising channels or openings configured to permit flow of fluid to the resiliently deformable portion.5. The valve element of claim 4 , wherein the openings are located at the perimeter of the ...

DUST COLLECTOR DIAPHRAGM VALVE CAPABLE OF PERFORMING MANUAL EMERGENCY OPERATION

A dust collector diaphragm valve capable of performing manual emergency operation according to the present invention is configured to perform control so that the internal equal pressure of the diaphragm valve can be broken due to an internal pressure drop attributable to an instantaneous air discharge occurring whenever an emergency operation switch is manually pressed when a pulse operation signal or solenoid valve used to operate the diaphragm valve fails, and thus a rubber plate installed between the body and cover of the diaphragm valve can be turned (moved forward) after being instantaneously moved backward. Accordingly, dedusting work can be manually performed according to the determination of a manager, and thus the dust collector diaphragm valve can prevent an emergency shutdown during the operation of a dust collector and can also prevent a filter from reaching a limit differential pressure, thereby preventing the lifespan of the filter from being shortened. 1. A dust collector diaphragm valve capable of performing manual emergency operation , the dust collector diaphragm valve comprising: a body configured such that an air inlet part and an air outlet part are formed in two directions as an internal air flow path and a passage are connected to each other; a cover configured such that a pressure vent is formed on one side thereof as an internal air flow path and a passage are connected to each other; a rubber plate configured to be installed between the body and the cover so that high-pressure air supplied through the air inlet part simultaneously fills both the air flow paths , forms equal pressure , and closes a passage of the air outlet part; a solenoid valve configured to be installed behind the cover so that an internal plunger instantaneously opens the pressure vent while being returned (moved forward) by elastic repulsive force after being instantaneously moved backward in response to a pulse operation signal , thereby dropping internal pressure in ...

FLOW REGULATING DEVICE

A flow regulating device is provided which includes: a housing including a pressure chamber formed therein; a second housing including a first space formed therein; a valve element which forms a closed state in which communication is shut off between an upstream flow channel and a downstream flow channel , or an open state in which communication is provided between the upstream flow channel and a downstream flow channel ; a diaphragm connected to the valve element ; a guide member connected to the diaphragm which is movable in an axial direction of the valve element with the movement of the valve element while being in a state in which the guide member is in contact with an inner circumferential surface of the pressure chamber

DIAPHRAGM ASSEMBLY FOR A DIAPHRAGM VALVE, AND DIAPHRAGM VALVE

A diaphragm assembly for a diaphragm valve is described, which has a diaphragm which includes a functional portion adapted to cooperate with further components of the diaphragm valve and to separate opposite chambers. The diaphragm further includes a tab projecting laterally from the functional portion and having a through-opening provided therein. A marking element is fastened in the through-opening. In addition, a diaphragm valve having such a diaphragm assembly is presented. 1. A diaphragm assembly for a diaphragm valve , comprising a diaphragm which includes a functional portion adapted to cooperate with further components of the diaphragm valve and to separate opposite chambers , and a tab projecting laterally from the functional portion , wherein a through-opening is provided in the tab , and a marking element is fastened in the through-opening.2. The diaphragm assembly according to claim 1 , wherein in its installed position claim 1 , the diaphragm comprises an upper side and a lower side claim 1 , and the marking element has substantially the same color as the lower side.3. The diaphragm assembly according to claim 1 , wherein in its installed position claim 1 , the diaphragm comprises an upper side and a lower side claim 1 , and the marking element is made from the same material as the lower side.4. The diaphragm assembly according to claim 2 , wherein the marking element is visible from a viewing direction directed onto the upper side.5. The diaphragm assembly according to claim 1 , wherein the marking element protrudes in relation to at least one of an upper boundary surface and to a lower boundary surface of the diaphragm.6. The diaphragm assembly according to claim 1 , wherein the marking element includes at least one lateral extension for retaining the marking element in the through-opening.7. The diaphragm assembly according to claim 6 , wherein the marking element includes two lateral extensions for retaining the marking element in the through- ...

Fluid control valve system and methods

A diaphragm-type control valve having a diaphragm and a valve body is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. The diaphragm element and a port in the body together form an intermediate chamber that eliminates the need for a check-valve downstream of the valve. In one preferred embodiment, an inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member defining a groove in communication with the port. A diaphragm member having upper and lower surfaces is disposed within the chamber. The lower surface preferably includes a pair of spaced apart elongated members defining a channel therebetween. The diaphragm member engages the seat member placing the channel in communication with the groove to define an air seat in communication with the port.

VALVE DEVICE

The present invention provides a miniaturized valve device capable of dramatically increasing the degree of freedom in arranging a flow path of a valve body while securing a necessary flow rate. The valve device includes a valve seat support provided in an accommodation recess and having a support surface with which a sealing surface of a valve seat abuts and supports a pressing force from the sealing surface; a diaphragm provided in the accommodation recess so as to abut and be separable from a seating surface of the valve seat and seals the opening side of the accommodation recess; the valve seat support having sealing surfaces which cooperates with a part of the inner wall surface of the accommodation recess to bock the communication between a primary flow path and a secondary flow path, and a detour passage that connects the primary flow path and a flow passage of the valve seat. 1. A valve device comprising a block-shaped valve body ,the valve body defining an accommodation recess open at a surface of the valve body and containing a valve element, and primary and secondary flow paths connected to the accommodation recess,the valve element blocking direct communication between the primary flow path and the secondary flow path through the accommodation recess, and making the primary flow path and the secondary flow path communicate through the valve element.2. The valve device according to claim 1 , whereinthe valve body defines opposing top and bottom surfaces and side surfaces extending between the top and bottom surfaces,the accommodation recess is open at the top surface of the valve body,the valve element comprises:a valve seat having an annular seating surface formed on one end surface, an annular sealing surface formed on the other end surface, and a flow passage formed inside the seating surface and the sealing surface and passing from the one end surface to the other end surface,a valve seat support provided in the accommodation recess and having a ...

DIAPHRAGM VALVE

Provided is a diaphragm valve that is capable of increasing its flow rate and is capable of suppressing variation among the diaphragm valves in the flow rates. In a diaphragm valve , a fluid that has flown into the fluid inflow channel enters a fluid outflow channel via through holes of a seat holder . On a bottom surface of a depression of a body , a seat receiving surface that receives a seat is flush with a seat-holder receiving surface that receives a seat holder . In the bottom surface of the depression of the body , an annular groove facing through holes of the seat holder is formed. 1. A diaphragm valve comprising:a body including a fluid inflow channel, a fluid outflow channel, and a depression opening upward;a seat disposed demountably on a circumferential edge of the fluid inflow channel of the body;a seat holder demountably disposed on the body to hold the seat; anda diaphragm that is pressed against and separated from the seat to open and close the fluid channel,in which a fluid that has flown into the fluid inflow channel enters the fluid outflow channel via through holes formed in the seat holder,the diaphragm valve characterized in that, on a bottom surface of the depression of the body, a seat receiving surface that receives the seat and a seat-holder receiving surface that receives the seat holder are formed, and that in the bottom surface of the depression of the body, an annular groove that faces the through holes of the seat holder is formed.2. The diaphragm valve according to claim 1 , wherein the seat receiving surface is flush with the seat-holder receiving surface.3. The diaphragm valve according to claim 1 , wherein claim 1 , among the seat receiving surface claim 1 , the seat-holder receiving surface claim 1 , and a bottom surface of the groove claim 1 , the bottom surface of the groove is formed at a lowermost level.4. The diaphragm valve according to claim 2 , wherein claim 2 , among the seat receiving surface claim 2 , the seat-holder ...

Diaphragm valve

A diaphragm valve including an axially driven valve spindle provides a pressure member, which allows to directly couple the diaphragm to the valve spindle. The same pressure member may always be used for coupling, irrespectively of the type of fastener, which is integrated in the diaphragm.

Fluid Control Valve System and Methods

A diaphragm-type control valve having a valve body holding a diaphragm and a depression member is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. An inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member. The depression member biases the diaphragm to a seated position within the valve. 1. A fluid control valve comprising:a valve body having a first inner surface defining a chamber having a first axis and a second axis substantially perpendicular to the first axis, the chamber including an inlet and an outlet in communication with the chamber and substantially aligned along the first axis, the inner surface including an elongated seat member substantially aligned along the second axis, the seat member defining a groove, a portion of the body further defining a port in communication with the groove;a diaphragm member disposed within the chamber for controlling communication between the inlet and the outlet, the diaphragm member having an upper surface and a lower surface, the lower surface including at least a pair of spaced apart elongated members defining a channel therebetween, the diaphragm member having a first position permitting communication between the inlet and the outlet and a second position wherein the elongated members engage the seat member such that the channel is in communication with the groove to define an intermediate chamber in communication with the port; anda depression member disposed within the chamber for moving the diaphragm member into the second position, the depression member having an annular base portion and a plurality of radial projections extending inwardly from the base portion, each radial projection having an arcuate portion with a mounting end and an opposing free end and having a resilient portion disposed between the mounting end and the base portion, the resilient ...

Liquid Control Valve

A float or a near neutral buoyancy weight (neither depicted) operated liquid pressure control valve includes a body (A) which together with an end cap (B) form a cavity and retain a diaphragm () therein. A back-pressure chamber () is formed between the end cap (B) and the diaphragm () and the diaphragm () includes a seal section (F) which seats on an inlet port () formed by a wall () projecting into the cavity. The diaphragm () seal (F) also separates the inlet () from an outlet () formed in the body (A). A float support arm () reciprocally operates a valve opening and closing control pin () mounted in an associated bleed passage ()formed longitudinally through a control pin () mounting (). Mounting () is fixed to end cap (B) and extends through the diaphragm (), the bleed passage () thus joining the inlet () to the chamber (). In an open mode (arm lowered) the bleed passage () also vents the chamber (). In a closed mode (arm raised) owing to the greater area of the diaphragm () presented to the chamber () than to the inlet () the inlet pressure in the chamber () displaces the diaphragm () to close the valve. A slide () is coupled to diaphragm () as to be displaced therewith and prevent excessive inlet pressure distorting the diaphragm () once the seal (F) closes on port (). To that end the slide () is a working fit within the bore (G) of the body (A) and abuts against a stop () formed by shoulder ()on bore (G) as the valve closes. 1. A liquid pressure control valve including a body forming a cavity and incorporating an inlet port and an outlet port joining to the cavity , a flexible member retained within the cavity to extend over the inlet port to separate the inlet port from the outlet port and to also form a chamber separated from the outlet port , a controlled bleed passage joining the inlet to the chamber , other than in an open mode of the valve , whereby inlet pressure in the chamber will displace the flexible member toward a closed mode with a seal of the ...

VALVE DEVICE

A valve device includes: a valve device body including a valve seat; a diaphragm that is provided to cover a valve chamber; a stem; and a valve body portion that is inserted into a central portion of the diaphragm, and that is configured to open and close the fluid passage by approaching the valve seat and separating from the valve seat. The diaphragm includes a main diaphragm, and a support diaphragm positioned on an opposite side of the main diaphragm to the valve chamber side and provided in contact with the main diaphragm. A first terminal end portion on an inner peripheral side of the main diaphragm is fixed to the valve body portion. A second terminal end portion on an inner peripheral side of the support diaphragm is separated from the first terminal end portion on the inner peripheral side of the main diaphragm. 1. A valve device comprising:a valve device body that has a fluid passage and a valve chamber formed therein and includes a valve seat;a diaphragm that is provided to cover the valve chamber and keeps the valve chamber airtight;a stem that is configured to move to approach and separate from the valve seat; anda valve body portion that is inserted into a central portion of the diaphragm and connected to the stem, and that is configured to open and close the fluid passage by approaching the valve seat and separating from the valve seat, whereinthe diaphragm includes a main diaphragm, and a support diaphragm positioned on an opposite side of the main diaphragm to the valve chamber side and provided in contact with the main diaphragm,a first terminal end portion on an inner peripheral side of the main diaphragm is fixed to the valve body portion, anda second terminal end portion on an inner peripheral side of the support diaphragm is separated from the first terminal end portion on the inner peripheral side of the main diaphragm.2. The valve device according to claim 1 , wherein a retaining ring is provided on the valve body portion on the opposite side ...

Fluid control valve and fluid control valve assembling method

To provide a fluid control valve for use under high-temperature conditions and capable of achieving high durability and Cv value stability even with many operations, and a method of assembling the fluid control valve, a fluid control valve includes an annular valve seat provided inside a body having an inflow port and an outflow port and a diaphragm opposed to the annular valve seat to be in contact therewith or away therefrom by an ascending/descending motion of an actuator rod or a manual rod. A contact surface, which is an upper surface of the annular valve seat, to be in contact with and away from the diaphragm has a tapered surface formed along a centripetal direction of the annular valve seat.

Diaphragm for a Diaphragm Valve and Method for the Manufacture of the Diaphragm

A diaphragm for a diaphragm valve comprises a base body made from an elastomer, the base body having a side facing towards the media and a side facing away from the media. A force transmission component is disposed at the base body on the side facing away from the media for the attachment of a spindle drive for a diaphragm valve. Furthermore, the base body has a reinforcement area, the reinforcement area being disposed on the outside of the base body on the side of the base body facing away from the media. 1. A diaphragm for a diaphragm valve having a base body made from an elastomer , wherein the base body comprises a side facing towards the media and a side facing away from the media , wherein a force transmission component is disposed at the base body on the side facing away from the media for the attachment of a valve spindle for a diaphragm valve , and wherein the base body furthermore comprises a reinforcement area ,wherein, the reinforcement area is disposed on the outside of the base body on the side of the base body facing away from the media.2. The diaphragm as recited in claim 1 ,wherein, the reinforcement area is a fabric.3. The diaphragm as recited in claim 2 ,wherein, the reinforcement area comprises a warp thread and weft thread system.4. The diaphragm as recited in claim 1 ,wherein, the reinforcement area comprises synthetic fibers.5. The diaphragm as recited in claim 1 ,wherein, the reinforcement area comprises glass or carbon fiber reinforced plastic material.6. The diaphragm as recited in claim 1 ,wherein, the reinforcement area is a reinforcement film.7. The diaphragm as recited in claim 1 ,wherein, the base body at least in sections is thicker than the reinforcement area.8. The diaphragm as recited in claim 1 ,wherein, an adhesive agent is provided on those surfaces of the force transmission component and/or of the reinforcement area, which form an effective surface pair with the base body.9. The diaphragm as recited in claim 1 ,wherein, the ...

VALVE AND PRESSURIZED FLUID CYLINDER

Valve comprising a body accommodating a withdrawing circuit comprising a first, upstream end and a second, downstream end intended to be connected to a consumer of the withdrawn gas, the withdrawing circuit comprising a member for regulating the fluid flow rate and/or pressure, the valve comprising a sensor for sensing the position of the control member, said sensor being configured to generate an electric signal indicative of the position of the latter or of the fluid flow rate and/or pressure set by the regulating member, the position sensor comprising at least one detectable element situated on the body of the valve or, respectively, on the control member and at least one measuring element situated on the control member or, respectively, on the body of the valve, at least one of the at least one detectable element and the at least one measuring element being covered with or enclosed in a protective membrane. 11324233424231545142423511959419152951192916. A valve for a pressurized fluid cylinder , comprising a body provided with an end configured to connect to an orifice of a pressurized fluid cylinder , the body of the valve () accommodating a withdrawing circuit () comprising a first , upstream end () intended to communicate with the storage volume of a pressurized fluid cylinder and a second , downstream end () configured to connect to a consumer of the withdrawn gas , the withdrawing circuit () comprising a member () for regulating the flow rate and/or the pressure of the withdrawn fluid between the upstream end () and downstream end () , the valve () comprising a member () for manually controlling the regulating member () , the control member () being able to move relative to the body of the valve () and cooperating with the regulating member () to control the flow rate and/or the pressure of fluid allowed to circulate from the upstream end () to the downstream end () depending on the position of the control member () with respect to the body of the valve () , ...

DISCHARGE VALVE AND COMPRESSOR COMPRISING SAME

Disclosed is an exhaust valve (A, B, C, D, E), comprising a valve body (), wherein the first end of the valve body is provided with a fluid inlet (); the sidewall of the valve body is provided with at least one fluid outlet () in fluid communication with the fluid inlet () and a valve flap () for opening or closing the fluid outlet; and the axis direction of the fluid outlet () is inclined relative to that of the fluid inlet (). Further disclosed is a compressor comprising the above-mentioned exhaust valve. The exhaust valve has a relatively low fluid resistance, and is able to significantly reduce the pressure drop in the compressor due to the exhaust valve, so that the operating efficiency of the compressor is increased. 1. A discharge valve comprising:a valve body having a first end provided with a fluid inlet,wherein a side wall of the valve body is provided therein with at least one fluid outlet in fluid communication with the fluid inlet, and a valve flap for opening or closing the fluid outlet,wherein an axis direction of the fluid outlet is inclined relative to an axis direction of the fluid inlet.2. The discharge valve according to claim 1 , wherein an angle between the axis direction of the fluid outlet and the axis direction of the fluid inlet is greater than 0 degree and less than or equal to 90 degrees.3. The discharge valve according to claim 2 , wherein the angle between the axis direction of the fluid outlet and the axis direction of the fluid inlet is greater than or equal to 30 degrees and less than or equal to 80 degrees.4. The discharge valve according to claim 3 , wherein the angle between the axis direction of the fluid outlet and the axis direction of the fluid inlet is greater than or equal to 70 degrees and less than or equal to 80 degrees.5. The discharge valve according to claim 1 , wherein an angle between a plane in which the valve flap is located when the valve flap closes the fluid outlet and the axis direction of the fluid inlet is ...