СПОСОБНЫЙ ДЕФОРМИРОВАТЬСЯ КЛАПАННЫЙ МЕХАНИЗМ ДЛЯ УПРАВЛЕНИЯ ПОДАЧЕЙ ТЕКУЧЕЙ СРЕДЫ

Группа изобретений относится к медицинской технике. Клапан содержит клапанное седло, имеющее коническое углубление с отверстием с поверхностью, срезанной на конус, и клапанную мембрану, содержащую коническую часть, имеющую основание и верхушку. Коническая часть выполнена с возможностью посадки с натягом внутрь конического углубления клапанного седла. Клапанная мембрана выполнена с возможностью обеспечения прохождения текучей среды от входного отверстия вдоль пути потока между коническим углублением и конической частью к выходному отверстию, когда клапанная мембрана находится в недеформированном состоянии, и блокирования пути потока от входного отверстия к выходному отверстию, когда клапанная мембрана находится в радиально деформированном состоянии. Клапанное седло и клапанная мембрана выполнены так, что коническая часть отделена зазором от поверхности, срезанной на конус, когда клапанная мембрана находится в недеформированном состоянии, и зазор закрыт, когда клапанная мембрана находится ...

КЛАПАНЫ ДЛЯ СИСТЕМ ВПРЫСКА МОЧЕВИНЫ

Изобретение относится к дозированию мочевины системы последующей обработки выхлопных газов. Устройство содержат камеру, выполненную с возможностью получения сжатого газа через первое впускное отверстие, получения раствора мочевины через второе впускное отверстие и подачи комбинированного потока из сжатого газа и мочевины к выпускному отверстию, канал потока, проходящий от первого впускного отверстия к посадочной поверхности, и клапанный элемент, выполненный с возможностью перемещения между открытым положением, в котором клапанный элемент находится на расстоянии от посадочной поверхности, и закрытым положением, в котором клапанный элемент соприкасается с посадочной поверхностью. При перемещении клапанного элемента из открытого положения в закрытое положение клапанный элемент соприкасается с посадочной поверхностью в первой точке и вытирает область посадочной поверхности, проходящую от первой точки в направлении канала потока. Также раскрыты способ и система дозирования для последующей обработки ...

КЛАПАН СБРОСА ДАВЛЕНИЯ (ВАРИАНТЫ) И КЛАПАННЫЙ УЗЕЛ, СОДЕРЖАЩИЙ УПОМЯНУТЫЙ КЛАПАН

Изобретение относится в общем к клапанам сброса давления, в частности к клапанам сброса давления для паротопливных систем. Клапан (10) сброса давления выполнен для управления потоком текучей среды между первым каналом (12а) для текучей среды и вторым каналом (12b) для текучей среды. Клапан сброса давления содержит корпус (14), диафрагменный элемент (24), подвижно закрепленный внутри корпуса и содержащий отверстие (18) для текучей среды, первый отклоняющий элемент (20) для принудительного перемещения диафрагменного элемента в первом направлении и уплотнительный элемент (26), подвижно установленный в корпусе и выполненный с возможностью обратимой герметизации отверстия (18) для текучей среды. Когда давление во втором канале (12b) для текучей среды превышает первую предопределенную пороговую величину, диафрагменный элемент (24) прижимается к первому отклоняющему элементу (20), и уплотнительный элемент (26) вначале принудительно перемещается к отверстию (18) для текучей среды и затем выходит ...

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 ...

ПИЛОТНЫЙ ГАЗОВЫЙ РЕГУЛЯТОР С ЗАЩИТОЙ ДИАФРАГМЫ

СПОСОБНЫЙ ДЕФОРМИРОВАТЬСЯ КЛАПАННЫЙ МЕХАНИЗМ ДЛЯ УПРАВЛЕНИЯ ПОДАЧЕЙ ТЕКУЧЕЙ СРЕДЫ

... 1. Клапан в системе подачи текучей среды, содержащий:клапанное седло, содержащее входное отверстие для текучей среды, выходное отверстие для текучей среды и коническое углубление, имеющее отверстие, поверхность, срезанную на конус, и дно; иклапанную мембрану, содержащую коническую часть, имеющую основание и верхушку, причем коническая часть выполнена с возможностью посадки с натягом, внутрь конического углубления клапанного седла, и клапанная мембрана выполнена с возможностью соединения по текучей среде входного отверстия для текучей среды и выходного отверстия для текучей среды, когда мембрана находится в недеформированном состоянии, и разъединять по текучей среде входное отверстие для текучей среды и выходное отверстие для текучей среды, когда мембрана находится в радиально деформированном состоянии.2. Клапан по п. 1, в котором верхушка конической части отделена щелью от дна конического углубления, когда мембрана находится в недеформированном состоянии; иверхушка клапанной мембраны касается ...

Stopfbuechsenloses Ventil

STRÖMUNGSRATENREGULIERUNGSVORRICHTUNG UND STEUERUNGSVERFAHREN EINER DURCHFLUSSREGULIERUNGSVORRICHTUNG

Es wird eine Strömungsratenregulierungsvorrichtung 100 bereitgestellt, die Folgendes beinhaltet: einen Ventilkörperabschnitt 10 aufweisend eine flache Ventilkörperfläche 11a; einen Hauptkörperabschnitt 20 einschließlich einer Ventilkammer R1, einem Einströmkanal, einem Ausströmkanal 24 und einem Verbindungskanal 22; einen Ventilsitzabschnitt 21 aufweisend eine flache Ventilsitzfläche 21a, die um eine Einströmöffnung 22a herum vorgesehen und an einer Position gegenüber der Ventilkörperfläche 11a angeordnet ist; einen Regulierungsmechanismus, der den Ventilkörperabschnitt 10 entlang einer Achse X bewegt, um eine Distanz zwischen der Ventilkörperfläche 11a und der Ventilsitzfläche 21a zu regulieren; und eine Steuereinheit, die den Regulierungsmechanismus so steuert, dass sich der Ventilkörperabschnitt 10 in einem Bewegungsbereich bewegt, in dem die Ventilkörperfläche 11a und die Ventilsitzfläche 21a in einem berührungslosen Zustand bleiben, wobei eine Kanalquerschnittsfläche des Verbindungskanals ...

EXHALATIONSVENTIL

Blutbehandlungskassette mit Folienventil und elastischem Abstandhalter sowie Blutbehandlungsvorrichtung

Die vorliegende Erfindung betrifft eine Blutbehandlungskassette (1000) mit einem als Hartteil (1) ausgestalteten Kassettenkörper und einer Folie (3), wobei die Folie (3) mit dem Hartteil (1) verbunden ist und das Hartteil (1) zumindest abschnittsweise abdeckt, wobei das Hartteil (1) wenigstens einen Ventilsitz oder -abschnitt oder einen Ventilgrund (226) für ein Ventil (288) aufweist, wobei das Ventil (288) ausgestaltet ist, um neben einer ersten, geöffneten Stellung des Ventils (288), in welcher der Ventilgrund (226) und ein über diesem angeordneter Abschnitt der Folie (3) einander nicht berühren, bei Aufbringen einer Kraft auf Abschnitt der Folie (3) eine zweite, geschlossene Stellung des Ventils (288) einzunehmen, in welcher der Ventilgrund (226) und der Abschnitt der Folie (3) einander berühren, wobei die Blutbehandlungskassette (1000) wenigstens einen federnd oder elastisch am Hartteil (1) abgestützten oder mit diesem integral hergestellten Abstandhalter aufweist, wobei der Abstandhalter ...

MEMBRANVENTIL

Die Erfindung betrifft ein Membranventil, das auf ein Membranventil aus Fluorharz bei 200°C angewendet wird und ein Ventil und einen Antriebszylinder umfasst. Das Membranventil verwendet ein Wärmeisolierverfahren, das eine Wärmeübertragungsbeschränkungsstruktur und eine Wärmeableitungsstruktur enthält, um die Steifigkeit der Zylinderstruktur sicherzustellen. Die Wärmeübertragungsbeschränkungsstruktur ist eine gitterartige Rippenplatte mit horizontalen Öffnungen in dem quadratischen Abschnitt. Die gitterförmige Rippenplatte und der Teil mit kleinstem Durchmesser des ringförmigen Abschnitts begrenzen die Dicke des Wärmeübertragungsquerschnitts. Die Wärmeableitungsstruktur besteht aus einer gitterförmigen Mehrschichtrippenstruktur, um eine optimale natürliche Kühlung von außen zu gewährleisten und einen hohen Temperaturgradienten aufrechtzuerhalten. Die Wärmeableitungsstruktur beinhaltet eine innere Kühlung, wobei die innere Kühlung die Kühlluft durch das Kühlluftloch des Ventilkörpers und ...

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.

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.

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.

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.

Diaphragm

A pump module for a dosing system and a non-return valve assembly therefor

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 ...

THRUST PIECE FOR A DIAPHRAGM VALVE

CONTROL VALVE TO FLOW RATE REGULATION OF AIR

COMPOUND DIAPHRAGM

DIAPHRAGM FOR DIAPHRAGM VALVE

DEVICE FOR THE MONITORING OF THE RIVER RATE

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

Multiple chamber respirator sealing devices and methods

The present disclosure provides a respiratory protection device that includes a valve assembly operable between an open configuration and a closed configuration. In some exemplary embodiments, the respiratory protection device includes a mask body having a first air chamber, a second air chamber, and a breathable air zone. A valve assembly is operable to a closed configuration to prevent airflow from the first and second air chambers into the breathable air zone.

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 TYPE WATER INLET VALVE

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 ...

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 ...

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.

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.

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

Robinet à membrane élastique.

Vanne, notamment pour liquides corrosifs.

Membranventil

Membran für Membranventil

Uberzug für flexible Membran

Abschliessung mit Membranabdichtung für die Spindel

Absperrventil

Membranventil für Zentralheizungs- und Gebrauchswasserleitungen

Strömungstechnische Steuervorrichtung

Robinet à membrane

Membran, insbesondere für Membranventile

Verfahren und Vorrichtung zum Herstellen von biegsamen Membranen oder Membranbelägen aus Polytetrafluoräthylen

Schaltglied mit druckmittelbetätigter Membran

Diaphragm valve

FLOW RATE AUTOMATIC CONTROLLER.

Diaphragm valve.

HOLDER FOR TREATMENT OF BLOOD WITH FILM VALVE AND ELASTIC SPACER, AND DEVICE FOR TREATMENT OF BLOOD

COVER WITH ELASTICALLY DEFORMABLE ELEMENT

TAP AND BOTTLE OF LIQUID UNDER PRESSURE

Two-position high/low resistance flow control - has bracket on diaphragm to allow capillary of free connection of inlet to outlet

Robinets à membrane.

L'INVENTION CONCERNE UN ROBINET A MEMBRANE, CELLE-CI POUVANT ETRE AMENEE CONTRE LE SIEGE DU ROBINET PAR UN POUSSOIR ACCOUPLE A LADITE MEMBRANE. SELON L'INVENTION, LE POUSSOIR 20 DU ROBINET A MEMBRANE EST CAPABLE DE S'ADAPTER AUSSI BIEN A UNE MONTURE A BAIONNETTE PREVUE SUR UNE MEMBRANE REVETUE, QU'A UNE BROCHE SORTANT D'UNE MEMBRANE ENTIEREMENT EN CAOUTCHOUC, CES DEUX MOYENS D'ACCOUPLEMENT DES MEMBRANES ETANT SUSCEPTIBLES D'ETRE ACCOUPLES A DES POUSSOIRS DE LA TECHNIQUE ANTERIEURE, DONT CHACUN NE PEUT PAS ETRE ACCOUPLE A LA FOIS A CES DEUX MOYENS D'ACCOUPLEMENT. L'INVENTION EST APPLICABLE A TOUS LES ROBINETS A MEMBRANE, MEME A CEUX EXISTANTS, CE QUI SIMPLIFIE LES PROBLEMES DE STOCKAGE DES PIECES DE RECHANGE.

Improvements for the flexible diaphragms

PNEUMATIC VALVE

RESPIRATORY DEVICE OF THERAPY HAS VALVE Of EXPIRY

HERMETIC TAP WITH SEAL CYLINDRICAL EXTENSIBLE

METERING VALVE

THERMAL CONTROL ELEMENT

VOLUMETRIC GOVERNOR

ELECTROMAGNETIC WATER SUPPLY VALVE

The present invention is achieved by providing an electromagnet valve for controlling the regulation of water supply by using an electromagnet. The present invention relates to an electromagnet valve comprising: a body including an upper member divided into upper and lower parts, a lower member having an inlet and outlet port provided on the lower side thereof and a hook provided on the upper surface thereof, and a diaphragm horizontally installed between the upper member and the lower member to divide the body into upper and lower parts, and elastically installed by using a simultaneous recovery element; an electromagnet valve formed of a bobbin and a yoke on the body; and a plunger interposed and installed between the body and the electromagnet unit to be penetrated in an axial longitudinal direction thereof and interlocked with the diaphragm, wherein the electromagnet valve controls the water supply of home appliances while being lifted by a magnetic force generated from the bobbin of ...

DIAPHRAGM VALVE

Fluid controller

This invention provides a fluid controller that can raise anti-vibration performance without affecting the pressure control action. The valve body 4 moves relative to the valve seat 3 to control the fluid pressure by the change of balance between the fluid pressure applied on the diaphragm 10 and the elastic force of produced by the pressure setting spring 13. A vibration-proof member 17 is provided on the disk-type movable member 12 that moves integrally with the diaphragm 10. The vibration-proof member 17 is formed in such a manner that the weight provided between the elastic bodies is built into the casing.

FLUID CONTROL VALVE

A fluid control valve wherein a valve part houses a diaphragm in a valve main body provided with a valve seat face and a first port and a second port, and a drive part is provided with a piston which divides a piston chamber in a cylinder main body into a first chamber and a second chamber, and a sealing member made of rubber attached to the outer circumferential surface of the piston; a constriction is provided between the piston chamber of the cylinder main body and the surface of the cylinder main body contacting the valve main body; an exhaust port which communicates with the first chamber, an operation port which communicates with the second chamber and supplies operation air, and an air purge port which communicates with a fluid non-contact chamber of the diaphragm and supplies purged air are formed in the cylinder main body; and a flow path which enables communication between the first chamber and the fluid non-contact chamber is formed in the piston. As a result, a temperature increase ...

MEMBRANE VALVE

The invention relates to a membrane valve (10), in particular for fluid media, having a valve body (20), a membrane (22), and a connecting piece (24) which can be actuated by a drive unit (14) to act on the membrane (22), wherein the valve body (20) and the membrane (22) are made of plastic, wherein two mutually independent seals (48,50) are provided for sealing the fluid medium with respect to the outside, in that the valve body (20) and the membrane (22) are welded to each other, and the membrane (22) is mechanically sealed between the drive unit (14), or an intermediate piece (18), and the valve body (20).

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 ...

METHOD FOR SHAPING A PLATE MADE OF A SINTERED AND RESTRUCTURED POLYTETRAFLUOROETHYLENE AND APPLICATIONS THEREOF

The invention relates to a method for shaping a plate made of a sintered and restructured polytetrafluoroethylene and to the applications thereof. 1. A method for shaping a plate made of a sintered and restructured polytetrafluoroethylene , comprising:{'sub': '1', 'heating the plate to a temperature θat least equal to a melting temperature of a sintered polytetrafluoroethylene; and'}shaping the thereby heated plate by compression in a compression mold.2. The method of claim 1 , wherein the heating of the plate is carried out outside the compression mold.3. The method of claim 2 , comprising:{'sub': '1', 'introducing the plate in an oven heated beforehand to the temperature θand maintaining the plate in the thereby heated oven for 10 minutes to 60 minutes; and then'}{'sub': '2', 'transferring the plate into the compression mold, the compression mold being heated beforehand to a temperature θat least equal to 200° C. but less than the melting temperature of the sintered polytetrafluoroethylene, and compressing the plate in the thereby heated compression mold for 5 minutes to 30 minutes, under a pressure ranging from 50 MPa to 150 MPa.'}4. The method of claim 1 , wherein the heating of the plate is carried out inside the compression mold.5. The method of claim 4 , comprising:{'sub': '1', 'introducing the plate in the compression mold, the compression mold being heated beforehand to the temperature θ, and compressing the plate in the thereby heated compression mold under a pressure ranging from 50 MPa to 150 MPa; and then'}cooling the compression mold and maintaining the plate under compression until the temperature of the compression mold is less than the melting temperature of the sintered PTFE.6. A method for manufacturing a film-shaped part made of a sintered and restructured polytetrafluoroethylene claim 4 , the film-shaped part having at least one not planar portion claim 4 , from a plate made of a sintered and restructured polytetrafluoroethylene claim 4 , ...

Diaphragm valve assembling method, diaphragm valve assembly structure, and diaphragm valve

A diaphragm valve assembling method including steps through which a twist of the diaphragm when assembled is prevented: a step of inserting a bonnet which pressurizes an outer periphery of a diaphragm into a body having a valve seat provided to a valve chamber and the diaphragm arranged thereabove; a step of screwing a fastening nut to an opening and inserting the fastening nut to an outer periphery of the bonnet; a step of fixing a rotation-stop jig inserted through a through hole of the fastening nut and the bonnet via fixing means; and a step of fixing the body and the rotation-stop jig via a fixing jig and fastening the fastening nut, with the bonnet being in a non-rotational state, to tightly attach the bonnet to an outer seal part of the diaphragm.

DIAPHRAGM VALVE

PURPOSE: To maintain purity of fluid and to bring a metallic sheet into tight contact with a valve seat by forming a diaphragm of a flexible metallic sheet which is chemically non-reactive with the flowing fluid and previously stretching the metallic sheet across a recess. CONSTITUTION: A diaphragm 64 formed of a 316 stainless steel sheet is formed by stretching the stainless steel sheet on a rib 65 by means of the rib 65 over a recess 60. A valve element 48 is formed of a core 52 covered by a 316 stainless steel layer 56. When the valve element 48 is located in the closing position, the diaphragm 64 is flexed toward the inside of the recess 60 by means of a valve seat 36 and brought into contact conformingly and sealingly with a sealing face of the valve seat 36 and an outlet opening 34 of a cover so as to seal the outlet opening 34. As the diaphragm 64 is previously stretched in advance of installation to the valve element 48, it conforms to the sealing face.

Клапан для сброса давления

КЛАПАН ДЛЯ СИСТЕМЫ УПРАВЛЕНИЯ ТЕКУЧЕЙ СРЕДОЙ И СПОСОБ УПРАВЛЕНИЯ ИМ

... 1. Регулирующий клапан для управления текучей средой, включающий ! корпус клапана, имеющий первую внутреннюю поверхность, образующую камеру, имеющую первую ось и вторую ось, практически перпендикулярную первой оси, при этом камера включает в себя вход и выход, соединенные с камерой и расположенные практически вдоль первой оси, на внутренней поверхности расположен продолговатый седельный элемент, расположенный практически вдоль второй оси и имеющий канавку, а в корпусе выполнено отверстие, соединенное с канавкой; и ! диафрагму, расположенную внутри камеры для управления соединением между входом и выходом, имеющую верхнюю поверхность и нижнюю поверхность, имеющую, по крайней мере, одну пару отделенных друг от друга продолговатых элементов, образующих канал, при этом диафрагма имеет первое положение, в котором допускается соединение между входом и выходом, а также второе положение, причем продолговатые элементы плотно прижимаются к седельному элементу таким образом, что канал соединяется с ...

Automatisches Regelventil zur Regelung der Durchflussmenge einer Fluessigkeit

Membran für ein Membranventil oder Stellventil mit einer Lasche und einem Transponder

Vorgeschlagen wird eine Membran (100) für ein Membranventil oder Stellventil, wobei die Membran (100) in dem Membranventil oder Stellventil zum Steuern des Durchflusses dient; wobei an der Membran eine Lasche (110) derart ausgebildet ist, dass sie über die Membranfläche hinausragt; wobei die Lasche (110) zur Fixierung eines Transponders (210) mindestens eine Aussparung (200) aufweist; wobei der Transponder (210) von einer abgeschlossenen Hülle (220) aus Kunststoff, Elastomer oder Silikon umhüllt ist; und wobei der umhüllte Transponder mit Hilfe der mindestens einen Aussparung an der Lasche fixiert ist. Die Aussparung erlaubt dabei, den von einer abgeschlossenen Hülle umgebenen Transponder von außen an der Lasche der Membran zu fixieren, so dass es nicht notwendig ist, den Transponder bereits bei der Produktion der Membran in ihre innere Struktur zu integrieren. Der Transponder kann separat, zu einem beliebigen anderen Zeitpunkt gefertigt und mit Daten bestückt werden.

Verbundmembran

VENTIL MIT ELASTISCH VERFORMBAREM VERSCHLUSSTEIL

DRUCKMINDERVENTIL.

Durchflussregler

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.

Diaphragm valves and method of making the same

... 989,585. Valves. GRINNELL CORPORATION. July 15, 1963 [July 19, 1962], No. 27895/63. Heading F2V. [Also in Division B3] Making weir-type diaphragm valve bodies. (a) Pressing.-A carbon steel tube is heated to 1200‹ F. and then compressed between socketed die halves 14, 16, Fig. 7, to provide a bulged centre part 32; a core 34 limits movement of the die-halves. A rotary tool is employed to make an opening 12, Fig. 4, in the middle of the centre part 32 after which the tube is re-heated to 1200‹ F. and then disposed between dies 37, 38, Fig. 9. The base 43 of lower die 38 has a weir-shaping plate 44 surrounded by pins 45 slidable in a platform 48 urged upwardly by springs 50, one around each pin; an opening 52 in the platform 48 allows the passage of the plate 44. Whilst the weir is being shaped the tube 12 is held on the platform 48 by cradles 46 and opposed spring- loaded plungers 63 operated by cams 70 on the die base 43. The upper die 37 has cradles that co-operate with cradle 46 and a ...

Improvements in or relating to valves for corrosive and other liquids

... 638,145. Manually-actuated valves. CAPOROSSI, J., and CAPOROSSI, A. Nov. 8, 1946, No. 33215. Convention date, Nov. 13, 1945. [Class 135] A glandless stop-valve for corrosive liquids, e.g. acids, comprises a body 1, preferably of moulded glass, having an inlet 2, an outlet 3, and a conical cavity 4 for receiving a screw - actuated non- rotatable plug 5. The plug 5 has secured to its apex by glueing or vulcanizing a rubber sheath 13, which sheath is secured around its periphery between the body 1 and a cap 9 to isolate the metal operating parts of the valve from the liquid. The cap is shaped so that in the fully open position of the valve it supports the sheath against liquid pressure within the valve. The valve may have a number of inlets and/or outlets connected to the cavity 4.

Improvements in and relating to diaphragm valves

... An edible hyaloid or translucent food casing comprises cohered collagen fibrils and substantially no collagen fibres. The food casing may also comprise dispersed droplets of fat and, if desired, 10 to 20% by weight of cellulosic fibres such as wood fibres. The casing may be tubular and may be shirred. It may be filled with sausage meat to yield sausages. Alternatively, the casing may be in the form of a sheet or film. In producing tubular food casings according to the invention, comminuted hide, e.g. unlimed cow hide, is made to swell in an aqueous solution of a non-toxic acid, such as lactic acid, until the sheaths surrounding the collagen fibrils are ruptured and swollen collagen fibrils are liberated. The amount of collagen tissue dry solids in the non-toxic aqueous acid may range between 2.5 and 6% by weight. A pump 91, Fig. 1, forces the resulting slurry of collagen fibrils through a filter 93 and an extruder 90, from which the extruded casing ...

MEMBRANVENTIL

MEMBRANVENTIL

PRESSURE REDUCING VALVE.

PRESSURE REDUCING VALVE.

MEMBRANVENTIL

Diaphragm

A diaphragm for a lung demand valve, including a chemical, biological, radiological and/or nuclear (CBRN) layer which is sufficiently resistant to the permeation of at least some CBRN agents and a resilient layer which is resiliently deformable. The CRBN layer is arranged to restrict the permeation of at least some CBRN agents through the diaphragm, and the resilient layer is arranged to allow the diaphragm to be resiliently deformed.

Valve For Container Filled With Halogen Gas Or Halogen Compound Gas

A direct-touch diaphragm valve according to the present invention includes a valve body having inlet and outlet passages, a valve chamber being in communication with the inlet and outlet passages, a valve seat located around an open inner end of the inlet passage and a diaphragm arranged on the valve seat so as to hermetically seal the valve chamber and open or close the inlet and outlet passages, wherein the valve seat and the diaphragm have respective contact surfaces formed therebetween such that: such that: the contact surface of the valve seat has a surface roughness Ra of 0.1 to 10.0 μm and a curvature radius Ra of 100 to 1000 mm; and the area ratio Sb/Sa of a contact area Sb of the valve seat with the diaphragm to a gas contact surface area Sa of the diaphragm ranges from 0.2 to 10%.

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.

SIPHON ACTIVATED VALVE

A fill valve system with a float nested in a container connected to the fill valve and a siphon device passing water out of the container into the toilet tank, with the siphon device having an air vent dimensioned such that: (i) tank refilling is delayed until after the flush valve closes; (ii) the fill valve is not turned on by small leaks in the tank; and (iii) the fill valve turns off when it encounters large leaks in the tank. 1. A fill valve system , comprising:(a) a water supply member;(b) a fill valve in fluid communication with the water supply member; and (i) a container,', '(ii) a float nested in the container, wherein the position of the float in the container turns the fill valve on and off, and', '(iii) a siphon device in fluid communication with the container., '(c) a float assembly connected to the fill valve, the float assembly comprising2. The fill valve system of claim 1 , wherein the siphon device is a siphon tube having an upper end in the container and a bottom end below the container.3. The fill valve system of claim 1 , wherein the siphon device is a pair of nested conical structures in the container.4. The fill valve of claim 1 , wherein the float assembly further comprises:(iv) an air vent into the siphon device.5. The fill valve of claim 1 , wherein raising the float in the container turns the fill valve off and wherein lowering the float in the container turns the fill valve on.6. The fill valve of claim 1 , wherein the container has a passage into which tank water can spill.7. The fill valve of claim 1 , wherein the top and bottom ends of the siphon device have different diameters.8. The fill valve of claim 4 , wherein the air vent into the siphon device is dimensioned to cause siphon flow when the water level in the tank is dropping at a rate greater than a pre-determined threshold.9. The fill valve of claim 4 , wherein the vent hole in the siphon device is dimensioned to prevent siphon flow when the water level in the tank is dropping ...

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 ...

VALVE FOR A DIALYSIS MACHINE AND DIALYSIS MACHINE

A pressure compensation valve for a dialysis machine is disclosed. The pressure compensation valve has a valve housing, in which a flow path with fresh dialysate is separated from a flow path with exhausted dialysate by a diaphragm. The diaphragm and the valve housing are configured such that pressure compensation is possible. In addition, the diaphragm is configured such that no vibrations or a reduced amount of vibrations and/or no noise emission or a reduced amount of noise emission will occur during operation. Furthermore, a dialysis machine comprising such a pressure compensation valve is disclosed. The dialysis machine comprises a balancing unit, and the pressure compensation valve is arranged on the outlet side of the balancing unit. 115-. (canceled)16. A valve for a dialysis machine , comprising:a valve housing having formed therein a first flow path in fluid communication with a first inlet connection and a first outlet connection and a second flow path in fluid communication with a second inlet connection and a second outlet connection,an equalizer element arranged within the valve housing that equalizes pressures of the flow paths and through which the fluids of respective flow paths operatively interact, the equalizer element having associated therewith a valve seat.17. The valve according to claim 16 , wherein the equalizer element is a diaphragm claim 16 , which is acted upon by the fluid of the first flow path and by the fluid of the second flow path and which is provided with a diaphragm projection.18. The valve according to claim 17 , wherein the diaphragm is configured as a sealing element for fluidically separating the first and second flow paths.19. The valve according to claim 17 , wherein the second flow path comprises a fluid space into which a channel section of the second flow path opens claim 17 , the diaphragm projection being adapted to be introduced into said channel section.20. The valve according to claim 19 , wherein an outlet opening ...

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 ...

GAS SUPPLY SYSTEM, SUBSTRATE PROCESSING SYSTEM AND GAS SUPPLY METHOD

A gas supply system includes: a first flow channel connecting a first gas source and a chamber; a second flow channel connecting a second gas source and the first flow channel; a control valve, provided in the second flow channel, configured to control a flow rate of the second gas; an orifice provided downstream of the control valve and at a terminus of the second flow channel; a switching valve, provided at a connection point between the first flow channel and the terminus of the second flow channel, configured to control a supply timing of the second gas; an exhaust mechanism, connected to a flow channel between the control valve and the orifice in the second flow channel, configured to exhaust the second gas; and a controller configured to bring the control valve, the switching valve and the exhaust mechanism into operation. 1. A gas supply system for supplying a gas to a chamber of a substrate processing apparatus , the system comprising:a first flow channel connecting a first gas source of a first gas and the chamber;a second flow channel connecting a second gas source of a second gas and the first flow channel;a control valve, provided in the second flow channel, configured to control a flow rate of the second gas to a predetermined amount;an orifice provided downstream of the control valve and at a terminus of the second flow channel;a switching valve, provided at a connection point between the first flow channel and the terminus of the second flow channel, configured to control a supply timing of the second gas which is supplied from an outlet of the orifice to the first flow channel;an exhaust mechanism, connected to a flow channel between the control valve and the orifice in the second flow channel, configured to exhaust the second gas; anda controller configured to bring the control valve, the switching valve and the exhaust mechanism into operation.2. The gas supply system according to claim 1 , wherein the switching valve includes a sealing 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 ...

DISPOSABLE DIAPHRAGM VALVE

A valve for dispensing fluid as a bead or a dot having a housing with an internal cavity and a disposable insert positioned within the cavity of the housing having a fluid inlet, a fluid chamber, a fluid outlet and a diaphragm adjacent the fluid chamber between the fluid inlet and the fluid outlet. The replaceable insert further has a latching mechanism adjacent the diaphragm for receipt of a reciprocating actuator to actuate the diaphragm to dispense fluid from the fluid chamber. 1. A method of using a fluid dispensing valve assembly , comprising:based on user input, a disposable diaphragm valve insert being inserted into an internal cavity of a housing of a fluid dispensing valve assembly, the disposable diaphragm valve insert having interior surfaces which come into contact with a dispensing fluid;receiving fluid into a fluid chamber in the disposable diaphragm valve insert,a diaphragm within the disposable diaphragm valve insert being engaged and disengaged by a reciprocating actuator to move the diaphragm through the fluid chamber;dispensing the fluid when the actuator is disengaged with the diaphragm;based on user input, the disposable diaphragm valve insert being replaced, as an assembled unit, with a different disposable diaphragm valve insert, as an assembled unit.2. The method of claim 1 , wherein the step of receiving fluid into the disposable diaphragm valve insert includes receiving fluid under pressure through a valve inlet into the fluid chamber in the disposable diaphragm valve insert.3. The method of claim 1 , wherein the step of dispensing the fluid is through a fluid outlet connected to the fluid chamber.4. The method of claim 1 , wherein the fluid dispensed is an adhesive claim 1 , epoxy claim 1 , potting compound or solder paste.5. The method of claim 1 , wherein the disposable diaphragm valve insert further includes a latching mechanism adjacent the diaphragm opposite the fluid chamber.6. The method of claim 2 , wherein the reciprocating ...

DEFORMABLE VALVE MECHANISM FOR CONTROLLING FLUID DELIVERY

A valve for controlling delivery of fluid includes a valve seat comprising a fluid inlet, a fluid outlet and a conical well having an opening, a beveled surface and a bottom, and a valve membrane comprising a conical potion having a base and a tip. The conical portion is configured to fit within the conical well of the valve seat. The valve membrane is configured to fluidly connect the fluid inlet to the fluid outlet when the valve membrane is in an undeformed position and fluidly disconnect the fluid inlet from the fluid outlet when the valve membrane is in a radially deformed position. 1. A valve for controlling delivery of fluid between a fluid inlet and a fluid outlet , comprising:a chamber having a wall and a compression surface, the chamber fluidly connected between the fluid inlet and the fluid outlet; anda valve membrane with a central axis and a protruding portion extending toward the compression surface;wherein the valve membrane is positioned within the chamber such that the protruding portion permits fluid to flow from the fluid inlet, between the protruding portion and the wall, to the fluid outlet when the protruding portion is in an undeformed position, and restricts fluid flow between the protruding portion and the wall when the protruding portion is radially expanded to engage the wall in a deformed position.2. The valve of claim 1 , wherein the protruding portion is conically shaped and a portion of the wall of the chamber has a beveled surface corresponding to the conically shaped protruding portion.3. The valve of claim 1 , wherein the wall comprises a rigid material and the valve membrane comprises an elastomeric material.4. The valve of claim 1 , wherein the valve membrane is axially compressed to engage the protruding portion against the compression surface in the deformed position such that the protruding portion is radially expanded.5. The valve of claim 1 , wherein a positive displacement pump comprises one of either the chamber or 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 ...

SET OF JIGS FOR ASSEMBLING A VALVE, AND A DIAPHRAGM VALVE ASSEMBLED WITH THE SAME

By preventing a twist of the diaphragm when assembled, various adverse effects arising from such a twist of the diaphragm are completely eliminated. Provided is a set of jigs for assembling a valve including a pair of above and below fixing jigs, a rotation-stop jig, and a fixing means: the rotation-stop jig is inserted and fixed to the above fixing jig in a non-rotational state; the fixing means fixes non-rotatably and attachably the rotation-stop jig and a bonnet of the valve to each other; a body of the valve is inserted and fixed to the below fixing jig in a non-rotational state; the bonnet and the body are fixed independently from each other in a non-rotational state, thereby preventing an outer periphery of a diaphragm from twisting in which a lower surface of an outer periphery of the bonnet and an outer seal part of the body are tightly attached to and hold the outer periphery of the diaphragm. 1. A set of jigs for assembling a valve comprising a pair of above and below fixing jigs , a rotation-stop jig , and a fixing means:the rotation-stop jig is inserted and fixed to the above fixing jig in a non-rotational state;the fixing means fixes non-rotatably and attachably the rotation-stop jig and a bonnet of the valve to each other;a body of the valve is inserted and fixed to the below fixing jig in a non-rotational state;the bonnet and the body are fixed independently from each other in a non-rotational state, thereby preventing an outer periphery of a diaphragm from twisting in which a lower surface of an outer periphery of the bonnet and an outer seal part of the body are tightly attached to and hold the outer periphery of the diaphragm.2. A set of jigs for assembling a valve according to claim 1 , comprising further a fastening nut which is screwed to an opening of the body claim 1 , and the outer seal part is configured by screwing of the fastening nut with a tool.3. A set of jigs for assembling a valve according to claim 1 , wherein the fixing means is ...

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 ...

INTERCONNECT MEMBRANE

A liquid permeable interconnect membrane for a liquid supply outlet, and a void between the interconnect membranes and an opposite void wall, the interconnect membrane being stiff enough to avoid unwanted pore deformation or contact with the opposite void wall. 1. A liquid supply for connection to a liquid inlet , comprisinga reservoir,a capillary medium in the reservoir,a liquid outlet,a liquid permeable interconnect membrane in the outlet, at a distance from the capillary medium, anda void between the interconnect membrane and the capillary medium, wherein the interconnect membraneis stiff enough to avoid contact with an opposite void wall in a connected state of the liquid supply, andhas an average capillarity that is enough to maintain menisci over its surface until a substantial depletion of the capillary medium.2. The liquid supply of wherein an average effective pore diameter of the interconnect membrane is smaller than an average effective pore diameter of the capillary medium.3. The liquid supply of wherein an average effective pore diameter of the interconnect membrane is less than half of the average effective pore diameter of the capillary medium.4. The liquid supply of wherein the supply comprises an outer housing claim 1 , and a rigid outer cylinder that is part of the outer housing, and', 'a rigid inner cylinder arranged within the outer cylinder, wherein the interconnect membrane is connected to the inner cylinder., 'the outlet comprises'}5. The liquid supply of wherein the inner cylinder is arranged to slide with respect to the outer cylinder.6. The liquid supply of comprising a stop for limiting a sliding distance of the inner cylinder with respect to the outer cylinder.7. The liquid supply of wherein the interconnect membrane is arranged to receive a pushing force to push the inner cylinder against the capillary medium while maintaining capillary characteristics of the interconnect membrane.8. The liquid supply of comprising a second membrane ...

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 ...

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 ...

DIAPHRAGM MEMBER AND DIAPHRAGM VALVE PROVIDED WITH DIAPHRAGM MEMBER

A diaphragm member includes a film-shaped diaphragm made of PFA and a valve body which is laser welded to a central hole portion of the diaphragm. 1. A diaphragm member comprising:a film-like diaphragm of PFA applied to a diaphragm valve flowing a liquid such as a high-purity chemical liquid or ultrapure water, anda valve body of fluorine resin,wherein said diaphragm is formed with a central hole portion at its central portion, andsaid valve body is joined at its base portion by laser welding to the central hole portion of said diaphragm.2. The diaphragm member according to claim 1 ,wherein the central portion of said diaphragm extends in a curved shape toward one surface of two surfaces of said diaphragm so as to form a convex curved shape toward a center of said diaphragm, the central portion of said diaphragm being formed as a central curved portion including the central hole portion, andwherein the base portion of said valve body is joined at its portion to the central hole portion by laser welding in a state that it is fitted at its portion into the central hole portion of the central curved portion.3. The diaphragm member according to claim 1 , further comprising an annular body for reinforcement of fluorine resin being joined by laser welding to the one surface or the other surface of said diaphragm along an outer peripheral portion thereof.4. The diaphragm member according to claim 2 , further comprising an annular body for reinforcement of fluorine resin being joined by laser welding to the one surface or the other surface of said diaphragm along an outer peripheral portion thereof.5. The diaphragm member according to claim 1 , wherein said diaphragm is formed in a film shape with PFA by extrusion molding or compression molding.6. The diaphragm member according to claim 2 , wherein said diaphragm is formed in a film shape with PFA by extrusion molding or compression molding.7. The diaphragm member according to claim 5 , wherein said diaphragm has a ...

METERED DOSE INHALERS

The present invention addresses the problem of turbophoresis and provides a relatively simple and low cost solution for a metered dose inhaler, in particular, a pressure-actuated metered dose inhaler. A metering valve () comprises a valve body (), a valve stem () mounted within the valve body () and a spring element () for biasing the valve stem () in an “at rest” position. A pre-metering region () is formed in the valve stem () which is provided with a miniature valve seal () at its inlet (). The miniature valve seal () effectively isolates the pre-metering region () from surrounding bulk formulation () within a canister () in which the metering valve () is mounted when the valve stem () is in the “at rest” position. 1. A metering valve comprising:a housing;a valve body mounted in the housing, the valve body having an inlet;a valve stem moveable within the valve body between at least a first position and a second position with respect to the valve body;a return member located within the valve body and being operable for biasing the valve stem to the first position;a pre-metering region formed within a first portion of the valve stem, the pre-metering region including an inlet port and an outlet port, the inlet port being connected to the inlet of the valve body;a metering chamber formed between the valve stem and the valve housing, the metering chamber being connectable to the outlet port of the pre-metering region;a first dose retention element positioned in an inlet path to the pre-metering region and being operable for retaining a measured dose within the pre-metering region, the first dose retention element providing fluid transport in both directions therethrough; anda dispensing channel formed within a second portion of the valve stem, the dispensing channel having a dispensing inlet and a dispensing outlet, the dispensing inlet being connectable to the metering chamber in the second position.2. A metering valve according to claim 1 , wherein the first dose ...

VALVE AND MANUFACTURING METHOD FOR VALVE

A valve includes a valve seat having a hole configured as a flow path, a valve body configured to open/close the flow path due to relative movement with respect to the valve seat, an opening member having a first surface fixed to one of the valve seat and the valve body, a second surface configured to separate away and abut the other one of the valve seat and the valve body, a third surface which intersects the first and second surfaces, and an opening penetrating the first and second surfaces, a fixing member that fixes the first surface to the one of the valve seat and the valve body, and an inclined portion, which makes an interval between the one of the valve seat and the valve body and the first surface long in a direction from the opening to the third surface. 1. A valve comprising:a valve seat that has a hole configured as a flow path of a liquid;a valve body configured to open/close the flow path due to relative movement with respect to the valve seat;an opening member that has a first surface which is fixed to one of the valve seat and the valve body, a second surface configured to separate away and abut the other one of the valve seat and the valve body, a third surface which intersects the first surface and the second surface, and an opening which penetrates the first surface and the second surface;a fixing member that fixes the first surface to the one of the valve seat and the valve body; andan inclined portion, which makes an interval between the one of the valve seat and the valve body and the first surface long in a direction from the opening to the third surface.2. The valve according to claim 1 ,wherein the second surface includes an inclined surface, which makes the interval to the one of the valve seat and the valve body long in the direction from the opening to the third surface, nearer to the opening than to the third surface.3. The valve according to claim 2 ,wherein the second surface further includes an outer peripheral surface that is ...

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 ...

Housing comprising overpressure protection

A housing having an overpressure protection includes a pressure relief opening with a diaphragm sealing plug to be closed in a fluid-tight manner. The diaphragm sealing plug has a central portion and an angled free peripheral portion. The free peripheral portion in the non-pressurized operating state extends away from the central portion in the direction of the housing external side. The central portion, by way of an increasing housing internal pressure in the axial direction, is deformable in such a manner that the peripheral portion by way of a tension stress that is derived from the deformation of the central portion in a manner proportional to the pressure is releasable from the housing wall in the axial direction in a progressive manner from the inside to the outside such that the diaphragm sealing plug releases the pressure relief opening when a predefined maximum housing internal pressure is reached or exceeded.

DRAWBACK VALVE SYSTEMS AND METHODS FOR COOLANT DRAWBACK

A first electrode coolant path is configured to cool a first welding electrode by liquid coolant flowing from a supply path through the first electrode coolant path to a return path. A second electrode coolant path is configured to cool a second welding electrode by liquid coolant flowing from the supply path through the second electrode coolant path to the return path. Three or more valves are configured to stop or reduce liquid coolant flow through the first or second electrode coolant path and configured to stop or reduce liquid coolant backflow from the return path when the first or second welding electrode is at least partially detached. At least one valve is coupled in the first or second electrode coolant path. A drawback apparatus generates a suction force to draw liquid coolant away from a gap formed when the first or second welding electrode is at least partially detached. 1. A drawback valve apparatus , comprising:a drawback housing having a chamber, a first opening configured to receive liquid coolant from a first liquid coolant path into the chamber, and a second opening configured to allow the liquid coolant to pass between the chamber and a second liquid coolant path;a valve element within the chamber, the valve element being configured to permit the liquid coolant to pass from the first opening to the second opening when open, and configured to substantially stop the flow of the liquid coolant from the first opening to the second opening when closed; anda drawback piston within the chamber, the drawback piston being configured to move within the chamber from a first position to a second position to a third position, the drawback piston being configured to cause or allow the valve element to open when the drawback piston is in the first position, the drawback piston being configured to cause or allow the valve element to close when the drawback piston is in the second position, the drawback piston being configured to cause a suction force in the ...

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 , ...

Pressure Reducing Valve

A pressure reducing valve of an air damping system of motor vehicle chassis makes available a constant output pressure when the input pressure varies. The pressure reducing valve has a housing with a general longitudinal axis, at least one fluid input opening and at least one axial fluid passage opening. In the housing a valve piston with a valve body is mounted displaceably which forms a seat valve with the axial fluid passage opening. An elastic diaphragm arranged stationarily in the housing is coupled to the valve piston and forms two axially active differential pressure areas. A pressure return passage penetrates the valve piston and guides an output pressure present downstream of the seat valve onto the elastic diaphragm. 2. The pressure reducing valve according to claim 1 , wherein at the other one of the two differential pressure areas of the elastic diaphragm atmospheric pressure is present.3. The pressure reducing valve according to claim 1 , wherein the pressure return passage penetrates the valve piston.4. The pressure reducing valve according to claim 3 , wherein active areas of the valve piston and the diaphragm claim 3 , on which the output pressure present downstream of the seat valve acts claim 3 , are configured such that axial pressure forces present at these active areas add up.5. The pressure reducing valve according to claim 1 , wherein the at least one fluid input opening is a radial passage opening with reference to the general longitudinal axis of the housing.6. The pressure reducing valve according to claim 1 , wherein the at least one valve body of the valve piston closes the at least one axial fluid passage opening on the output side claim 1 , and a maximal radial cross section area of the valve piston in a region of the valve piston in which the input pressure present at the at least one fluid input opening acts in a closing direction of the valve piston corresponds to the output-side cross section area of the at least one axial fluid ...

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 ...

Flow diverter with antisiphon

A flow diverter for diverting flow between a toilet bowl and a toilet tank, having: a body having an inlet, a first outlet and a second outlet; and a flow adjustment mechanism rotatable within the body to selectively divert different percentages of flow between the first outlet and the second outlet; and an air vent and diaphragm in the body to prevent a siphon flow from the first or second outlet back to the inlet.

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 ...

Diaphragm Valve Structure

A diaphragm valve structure having application in diaphragm valves made completely from fluororesin at an operating temperature of 200° C. The diaphragm valve uses a heat separation method that consists of a heat transfer limiting structure and a heat dissipating structure, ensuring rigidity of the gas cylinder structure. The heat transfer limiting structure uses lattice-shaped ribbed plates with horizontal openings, wherein the lattice-shaped ribbed plates and a minimum diameter area of an annular portion are all provided with heat transfer section thickness. The heat dissipating structure consists of a multilayered structure for a preferred external natural cooling, and further using a coolant gas ensuring that the peripheral portion of the diaphragm and gas-tight sealing components on the valve shaft are sufficiently cooled.

Flow control valve and system for cleaning a vehicle surface

The present disclosure provides a flow control valve for controlling the flow of a cleaning media, such as controlling the flow of cleaning media to a nozzle positioned to distribute the cleaning media to a vehicle surface. The flow control valve includes a plunger and a flexible diaphragm which operate to open and close the a fluid passage through the valve. Vehicles and systems incorporating a flow control valve are also provided.

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. ...

BLOOD TREATMENT CASSETTE WITH FILM VALVE AND ELASTIC SPACER AS WELL AS BLOOD TREATMENT APPARATUS

A blood treatment cassette having a cassette body comprising a hard part and a film that at least partially covers the hard part. The hard part comprises a valve base that cooperates with a section of the film adjacent the valve base to form a valve that is configured to be moved from a first open position in which the valve base and the section of the film do not touch each other to a second position in which the valve base and the section of the film touch each other when a force is applied to the section of the film. The blood treatment cassette comprises a spacer supported by the hard part, and the spacer is configured to apply, in the first position of the valve, force to the section of the film. 110-. (canceled)11. A blood treatment cassette having a cassette body comprising a hard part and a film , wherein the film is connected to the hard part and at least partially covers the hard part ,wherein the hard part comprises a valve base that cooperates with a section of the film adjacent the valve base to form a valve, wherein the valve is configured to be moved from a first open position in which the valve base and the section of the film adjacent the valve base do not touch each other to a second position in which the valve base and the section of the film adjacent the valve base touch each other when a force is applied to the section of the film adjacent the valve base,wherein the blood treatment cassette comprises a spacer supported by the hard part, andwherein the spacer is configured to apply, in the first position of the valve, force to the section of the film adjacent the valve base.12. The blood treatment cassette according to claim 11 , wherein the spacer is spring-loaded.13. The blood treatment cassette according to claim 11 , wherein the spacer is elastic.14. The blood treatment cassette according to claim 11 , wherein the valve is configured to be moved from the first position into the second position by pressure applied on the valve by an actuator ...

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 ...

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 () ...

GASKETS AND DIAPHRAGMS FOR FILTRATION SYSTEMS

Specialized arch gaskets for dust collection systems are provided that reinforce certain connections points within the system. More particularly, the arch gaskets may better reinforce the pressure conditions of the dust collection system and enhance the sanitary conditions within the system. The large side engagement formed by the legs of the arch gasket is able to provide a desirable amount of adhesive surface to connect to the desired component in the system (e.g., a door), which may allow a user to more easily install the arch gasket into the system at its intended location. 1. An arch gasket for a dust collection system , said gasket comprising:(a) a main body;(b) a first node and a second node extending from said main body thereby forming a concave arch; and(c) a first leg extension and a second leg extension extending from said main body thereby forming a cavity.2. The arch gasket of claim 1 , wherein said gasket is produced from an elastomer.3. The arch gasket of claim 2 , wherein said elastomer comprises a silicone-based elastomer.4. The arch gasket of claim 2 , wherein said elastomer exhibits a shore hardness of at least 30 durometers.5. The arch gasket of claim 1 , wherein said gasket comprises a maximum width A and a minimum width B claim 1 , wherein said maximum width A is at least 1.1 times greater than said minimum width B.6. The arch gasket of claim 1 , wherein said gasket comprises a maximum length Land said first leg extension and said second leg extension comprise a length L claim 1 , wherein said maximum length Lis at least 1.1 and less than 4 times greater than said length Lof said first leg extension and said second leg extension.7. The arch gasket of claim 1 , wherein said first leg extension and said second leg extension comprise a length Land said concave arch comprises a maximum depth L claim 1 , wherein said length Lof said first leg extension and said second leg extension is at least 1.5 times greater than said maximum depth Lof said arch. ...

Gaskets and diaphragms for filtration systems

Specialized dust collection systems are provided that comprise a pulsed air system; at least one diaphragm valve assembly, which functions as the pulsed air valve; and a controller for controlling the diaphragm valve assembly and pulsed distribution of the pressurized air. The diaphragm valve assembly may be controlled by the controller and is operable to selectively deliver pressurized air to the air distribution assembly in short pulses or bursts. The disclosed diaphragm valve assembly can be utilized to improve the functionality of the pulsed air system and the dust collection system.

VALVE

Valve of the type having a body which is provided with an inlet and an outlet of a fluid which are reciprocally put in flow communication by means of a communication chamber in which said communication chamber can be occluded by means of closure means and in which the communication chamber is divided in a first chamber and a second chamber, each putting in flow communication the inlet and the outlet of the fluid according to a parallel configuration. The first chamber is provided with first closing means, the second chamber is provided with second closing means and there is further provided at least one third closing means. 1. Valve of the type comprising a body which is provided with an inlet of a fluid and an outlet of said fluid which are reciprocally put in flow communication by means of a communication chamber between said inlet and said outlet in which said communication chamber can be occluded by means of closure means of said flow communication which are operable by means of a control in which said communication chamber is divided in a first chamber and a second chamber , each of said first chamber and second chamber putting in flow communication said inlet and said outlet of said fluid according to a parallel configuration in which:said first chamber is connected to said inlet by means of a first entry branch;said first chamber is connected to said outlet by means of a first exit branch;said second chamber is connected to said inlet by means of a second entry branch;said second chamber is connected to said outlet by means of a second exit branch;and further in which each of said first chamber and second chamber is provided with corresponding closure means of said flow communication, said first chamber being provided with first closing means of said flow communication which are operable by means of a control and said second chamber being provided with second closing means of said flow communication which are operable by means of a control, said valve being ...

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 ...

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 , ...

VALVE APPARATUS

A valve apparatus is equipped with a diaphragm disposed displaceably in the interior of a body, and which opens and closes a fluid passage by separating away from and being seated on a valve seat, a conductive shaft arranged in a through hole that is formed substantially in the center of the diaphragm, and a grounding member for grounding the conductive shaft. Each of the body and the diaphragm is formed from a non-conductive material, and one end surface of the conductive shaft is exposed to the fluid passage. 1. A valve apparatus comprising:a body including a fluid passage that establishes communication between a first port and a second port and through which a pressure fluid flows;a diaphragm disposed displaceably in an interior of the body, and which opens and closes the fluid passage by separating away from a valve seat and by being seated on the valve seat;a conductive shaft arranged in a through hole formed substantially in a center of the diaphragm; anda grounding member configured to ground the conductive shaft,wherein each of the body and the diaphragm is formed from a non-conductive material, one end surface of the conductive shaft being exposed to the fluid passage.2. The valve apparatus according to claim 1 , wherein the conductive shaft includes:a small diameter portion arranged in the through hole; anda large diameter portion disposed on another end of the small diameter portion, andwherein an annular sealing projection, which contacts one surface of the large diameter portion and forms a seal between the large diameter portion and the diaphragm, is formed on another surface of the diaphragm.3. The valve apparatus according to claim 1 , wherein the conductive shaft includes:a small diameter portion arranged in the through hole; anda large diameter portion disposed on another end of the small diameter portion, andwherein an annular resilient member, which forms a seal between the large diameter portion and the diaphragm, is interposed between another ...

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.

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 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 ...

Valve manifold deadleg elimination via reentrant flow path

A gas delivery system for a substrate processing system includes first and second valves, a first gas channel, and a cylinder. The first valve includes a first inlet and a first outlet. The first outlet is in fluid communication with a processing chamber of the substrate processing system. The second valve includes a second inlet and a second outlet. The cylinder defines a second gas channel having a first end and a second end. The cylinder is at least partially disposed within the first gas channel such that the cylinder and the first gas channel collectively define a flow channel. The flow channel is in fluid communication with the first end of the second gas channel and with the first inlet. A third gas channel is in fluid communication with the second end of the second gas channel and with the second inlet.

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 ...

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.

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 , ...

Membrane and method for the production thereof

A membrane which is provided with a membrane surface that represents the functional region of the membrane and which is provided with a tab that projects beyond the membrane surface is described. The membrane and the tab are constructed from a number of layers, wherein at least one of the layers consists of an elastomer. Arranged in the tab is an electronic data carrier. The tab has an upper and a lower layer. The data carrier is enclosed by the layers of the tab and the upper and the lower layer.

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 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. 178.-. (canceled)79. A fluid control assembly , comprising:a fluid control line comprising a first end in fluid communication with an inlet of a diaphragm valve and a second end in communication with a diaphragm chamber of the diaphragm valve;an electric latch comprising a first electrically operated control point and a second electrically operated control point in fluid communication with the fluid control line to control the flow of fluid from the inlet to the diaphragm chamber,the first electrically operated control point, in an unactuated state, defines an energized open configuration to place the inlet in fluid communication with a fluid chamber defined by an internal diaphragm member of the diaphragm valve for pressurizing the fluid chamber to provide a sealed engagement between the internal diaphragm member and an internal seat of the diaphragm valve,the first electrically operated control point, in an actuated state, defines a closed configuration to prevent pressurization of the diaphragm chamber, the first electrically operated control point energized while in the open configuration and de-energized while in the closed configuration,the second electrically operated control point, in the unactuated state, defines a ...

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 ...

METHOD FOR OPERATING A DIAPHRAGM VALVE, SYSTEM AND READING DEVICE

A method for operating a diaphragm valve including the step of reading out data, which characterize at least one property of a diaphragm of the diaphragm valve, from at least one data memory integrated into the diaphragm valve, by a reading device. The method further includes the steps of: (a) transmitting the read-out data to a processing device which is arranged remote from the reading device and the diaphragm valve and (b) synchronizing the transmitted data with data present in the processing device. 1. Method for operating a diaphragm valve , which comprises the step of reading out data , which characterize at least one property of a diaphragm of the diaphragm valve , from at least one data memory integrated into the diaphragm valve , by means of a reading device , characterized in that the method further comprises the steps of:a. transmitting the read-out data to a processing device which is arranged remote from the reading device and the diaphragm valve;b. synchronizing the transmitted data with data present in the processing device.2. Method according to claim 1 , characterized in that in step a claim 1 , the data are transmitted to a processing device which is at the premises of the manufacturer or supplier of the diaphragm valve.3. Method according to claim 1 , characterized in that the data are read out by means of a mobile reading device claim 1 , in particular by means of at least one of a smartphone claim 1 , tablet PC and smart tablet.4. Method according to claim 1 , characterized in that the data are read out wirelessly.5. Method according to claim 1 , characterized in that the data present in the processing device characterize at least one property of the diaphragm of the diaphragm valve and at least one property of a component of the diaphragm valve that is not the diaphragm claim 1 , and at least one property of the diaphragm valve.610. Method according to claim 1 , characterized in that data which characterize at least one property of a component ...

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 ...