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 ...

КЛАПАН СБРОСА ДАВЛЕНИЯ ДЛЯ ТРАНСПОРТИРОВОЧНЫХ ЦИСТЕРН

Изобретение предназначено для сброса давления для выпуска жидкости через дренажное отверстие V в железнодорожных цистернах, автомобильный цистернах и аналогичных резервуарах. Тарелка клапана в исходном состоянии смещена в закрытое положение несколькими пружинами постоянной жесткости, состоящими из слоев стальных лент на барабанах, которые установлены на вертикальных угловых кронштейнах, симметрично расположенных вокруг седла клапана. Давление, при котором открывается клапан, задают путем предварительного выбора количества пружин, слоев лент на одну пружину и возвращающей силы каждой ленты. Изобретение позволяет повысить надежность клапана. 2 с. и 6 з.п. ф-лы, 4 ил.

РЕГУЛЯТОР ПРОТИВОДАВЛЕНИЯ С ЛЕГКИМ ПУСКОМ НАСОСА

Настоящее изобретение относится к системам подачи и обработки текучей среды и более конкретно к системам и способам обеспечения функций пуска и сброса избыточного давления для систем подачи и обработки жидкости. Представлены система и способ для автоматического выполнения функций выпуска при пуске и сброса избыточного давления в связи с основным контейнером текучей среды, таким как, например, трубопровод или бак обработки жидкости. Система содержит главный клапан для первоначального вывода воздуха, когда она заполняется жидкостью. Предусмотрено также пусковое вспомогательное устройство для вывода воздуха из системы после пуска, но перед открыванием главного клапана. Наконец, предусмотрено разгрузочное вспомогательное устройство для ситуаций сброса избыточного давления в нормальном режиме работы. 5 н. и 28 з.п. ф-лы, 3 ил.

ПРЕДОХРАНИТЕЛЬНЫЙ КЛАПАН ДЛЯ ГАЗА, ПРИСПОСОБЛЕННЫЙ ДЛЯ БЫТОВОГО ПРИБОРА

Предохранительный клапан для газа, приспособленный для бытового прибора, содержащий электромагнит (2), который содержит фазный провод (12) и заземляющий провод (13), опору (3) электромагнита (2), которая содержит полость, и фазный затвор (30). Сегмент фазного провода (12) и сегмент заземляющего провода (13) электрически соединены с фазным затвором (30) и с опорой (3), фазный затвор (30) расположен в полости опоры (3). Клапан (1) содержит соединитель (20), вставленный в полость опоры (3), содержащий вставленные в него первые концы фазного вывода (21) и вывода (22) заземления, которые электрически соединены с фазным затвором (30) и внутренней областью (31) опоры (3), соответственно, а вторые концы контактируют с наружным пространством. 14 з.п. ф-лы, 7 ил.

ПРЕДОХРАНИТЕЛЬНОЕ УСТРОЙСТВО

Изобретение относится к трубопроводному арматуростроению и предназначено для защиты объектов от превышения допустимого давления рабочей среды. Предохранительное устройство включает предохранительный клапан, состоящий из корпуса с входным и выходным патрубками, крышки, поджатого пружиной настройки разгруженного запорного элемента, управляемого рабочей средой защищаемого объекта поршневого привода, поршень которого соединен штоком с запорным элементом клапана и контактирует с пружиной настройки, и две разрывные мембраны, установленные между защищаемым объектом и предохранительным клапаном. Корпус клапана выполнен угловым. Между корпусом и крышкой расположена вставка, в которой находится поршень привода, в штоке которого выполнен разгрузочный канал. Запорный элемент предохранительного клапана благодаря наличию разгрузочного канала и равенству площадей поршня и запорного элемента реагирует только на изменение рабочего давления на одной из сторон поршня, выполняющей роль чувствительного элемента ...

СКВАЖИННЫЙ ИНЖЕКЦИОННЫЙ КЛАПАН

Полезная модель относится к нефтедобывающей промышленности, а именно к оборудованию для эксплуатации нефтяных и газовых скважин. Скважинный инжекционный клапан содержит полый корпус и крышку с расположенными по окружности сквозными отверстиями. В донной части корпуса выполнено посадочное центральное отверстие. Внутри корпуса с возможностью осевого перемещения и перекрытия центрального отверстия установлен подвижный диск, выполненный из твердосплавного материала на основе карбида вольфрама ВК8. Между крышкой и диском расположена пружина. В посадочном центральном отверстии установлено сопло из твердосплавного материала на основе карбида вольфрама ВК8. В центральном отверстии сопла установлена растворимая заглушка, выполненная из химически активного сплава на основе магния, алюминия и цинка, в процентном соотношении 90/7/3. Достигается технический результат – повышение надежности работы клапана, за счёт снижения эрозионного износа потоком нагнетаемой среды и механическими частицами в результате ...

Клапан поддержания давления

Полезная модель относится к газовой промышленности и предназначена для управления потоком рабочей среды в трубопроводных магистралях высокого давления для использования на гидропневматических приводах исполнительных механизмов магистральных трубопроводов. Полезная модель позволяет поддерживать входное рабочее давление, необходимое для нормальной работы исполнительных механизмов магистральных трубопроводов без участия персонала путем:- автоматического переключения источника давления с приоритетной магистрали на резервную магистраль, при падении давления питания в магистрали приоритетной подачи от системы импульсного газа ниже необходимого (настраиваемого) порогового значения;- автоматического переключения источника давления с резервной магистрали на приоритетную магистраль, при повышении давления питания в магистрали приоритетной подачи от системы импульсного газа выше необходимого (настраиваемого) порогового значения. 3 ил.

ПРЕДОХРАНИТЕЛЬНЫЙ КЛАПАН

Изобретение относится к области машиностроительной гидравлики, а именно: предохранительным устройствам гидросистем машин и механизмов. Предохранительный клапан содержит полый корпус с подводящим и отводящим патрубками, в полости которого на внутреннем неподвижном полом цилиндре, установлен с возможностью перемещения подпружиненный запорный орган, выполненный в виде подвижного полого цилиндра с опорным буртом у одного основания, и с перепускными отверстиями у другого основания. Внутри упомянутого цилиндра установлен запорный элемент, взаимодействующий с внутренней торцевой уплотнительной поверхностью подвижного полого цилиндра, и с уплотнительной упорной кромкой внутреннего неподвижного полого цилиндра. Пружина запорного органа одним концом взаимодействует с опорным буртом подвижного полого цилиндра, а другим упирается в гайку. Подводящий патрубок выполнен в виде профилированного ступенчатого полого тела вращения с одним днищем, расположенным в его центральной части, и неподвижно установлен ...

Перепускной клапан

Изобретение относится к области авиационного двигателестроения и касается перепускного клапана, используемого в маслосистемах авиационных газотурбинных двигателей для поддержания заданной величины давления подачи масла. Перепускной клапан содержит корпус с седлом, контактирующим с торцом подпружиненной тарели. Над седлом в корпусе установлена гильза с двумя рядами последовательно расположенных окон и втулкой, установленной снаружи гильзы и перекрывающей ближайший к седлу ряд окон. Внутренняя полость в гильзе через дальний от седла ряд окон сообщена с выходной полостью в корпусе, а над тарелью установлена подвижная опора, в закрытом положении клапана расположенная от обращенного к ней упорного торца тарели на расстоянии, равном половине разности продольной длины ближайшего к седлу ряда окон и толщины тарели. Техническим результатом изобретения является повышение надежности двигателя вследствие оптимизации настройки давления подачи масла на разных режимах работы, снижение потребной производительности ...

ПРЕДОХРАНИТЕЛЬНЫЙ КЛАПАН И СПОСОБ РЕГУЛИРОВАНИЯ ДАВЛЕНИЯ

... 1. Предохранительный клапан, включающий: ! корпус, который имеет верхнюю часть и нижнюю часть и нижняя часть которого включает впускное отверстие, выпускное отверстие, ограничитель диафрагмы и ограничитель текучей среды; ! пружину, которая расположена в первой камере, окруженной верхней частью корпуса и нижний конец которой выполнен с возможностью входа в контакт с верхней частью диафрагмы и приложения к ней направленного вниз давления; ! диафрагму, расположенную с возможностью перемещения в осевом направлении в пределах корпуса; причем диафрагма и нижняя часть корпуса образуют камеру для текучей среды; ! при этом когда давление текучей среды, которая поступает в камеру для текучей среды через впускное отверстие, ниже заданного порога, верхняя часть диафрагмы находится в контакте с ограничителем диафрагмы, а нижний край диафрагмы находится в контакте с ограничителем текучей среды и препятствует протеканию текучей среды через выпускное отверстие; а ! когда уровень давления текучей среды ...

УЗЕЛ КЛАПАНА ДИФФЕРЕНЦИАЛЬНОГО ДАВЛЕНИЯ

Изобретение относится к клапану контроля давления, содержащему: затвор, расположенный в клапанной камере, находящейся между одним впуском текучей среды и одним выпуском текучей среды. Указанный затвор выполнен с возможностью перемещения относительно клапанного седла, определяющего первую степень открытия клапана контроля давления. Клапан содержит мембрану, соединенную с затвором и выполненную с возможностью отклонения при изменениях дифференциального давления на мембране, с изменением тем самым положения затвора относительно реагирующего на давление клапанного седла. В клапане предусмотрена направляющая затвора внутри клапанной камеры, содержащая множество частей, контактирующих с наружной стенкой затвора и расположенных на ее окружности. Изобретение предотвращает ограничение пределов хода затворного элемента в результате покрытия поверхности стенки известковым налетом. 12 з.п. ф-лы, 11 ил.

ГРАВИТАЦИОННЫЙ КЛАПАН ДЛЯ ПОДВИЖНЫХ ОБЪЕКТОВ, ИЗМЕНЯЮЩИХ ОРИЕНТАЦИЮ В ПРОСТРАНСТВЕ

Изобретение относится к клапанам для подвижных объектов, изменяющих ориентацию в пространстве, и может найти применение в гидравлических, пневматических и электрических системах управления. Гравитационный клапан для подвижных объектов, изменяющих ориентацию в пространстве, включает корпус 1 и запорный элемент 2, подпружиненный упругим элементом 3 с регулятором упругости 4 и шкалой 5. С другого конца запорного элемента установлен шарообразный груз 6 в направляющем стакане 7. Клапан обеспечивает закрытие или открытие гидро-, пневмо- или электролиний в объектах, изменяющих ориентацию в вертикальной плоскости; в объектах в условиях изменения величины силы притяжения Земли, а также в объектах, совершающих движения с ускорением или замедлением или при вращательном движении. Изобретение направлено на расширение функциональных возможностей клапана при использовании в подвижных объектах, находящихся в состоянии различных видов движений. 5 з.п. ф-лы, 1 ил.

КЛАПАН ОТСЕКАТЕЛЬ

Изобретение относится к защитному виду трубопроводной арматуры, предназначенной для перекрытия потока рабочей среды. Клапан отсекатель содержит корпус с входным и выходным штуцерами, седло с затвором, пилотный механизм для приведения затвора в положение закрыто при понижении или повышении давления за пределы значений уставки заданного диапазона. Подпружиненный горизонтальный шток с поршнем, подпружиненный вертикальный шток, привод для перевода затвора в положение открыто, привод для перевода затвора в положение закрыто. Приводы для перевода затвора в положение открыто или закрыто имеют взаимно независимое функционирование, местное, дистанционное управление и индикацию положений. Привод для приведения затвора в положение открыто, и подпружиненный вертикальный шток для приведения затвора в положение закрыто, независимо воздействуют непосредственно на затвор в противоположных направлениях. Благодаря демпфирующему узлу, реализованному в подпружиненном вертикальном штоке, обеспечивается регулирование ...

РЕГУЛЯТОР ДАВЛЕНИЯ КОМПРИМИРОВАННОГО ПРИРОДНОГО ГАЗА (КПГ)

Регулятор расхода для системы компримированного природного газа (КПГ) образован корпусом, имеющим по меньшей мере один впускной патрубок, по меньшей мере один выпускной патрубок и по меньшей мере один внутренний проход, соединяющий гидравлически впускной и выпускной патрубки. Механический обходной клапан расположен между впускным и выпускным патрубками и активируется подвижным смещаемым элементом, который перемещается на основании входного давления, и причем обходной клапан закрывается только после того, как входное давление превышает заданное пороговое значение. Обходной клапан является отказоустойчивым, причем регулирование газа не происходит до тех пор, пока входное давление не станет достаточным для закрытия обходного клапана. Регулятор расхода дополнительно содержит емкость для охладителя, образованную змеевидным каналом, образованным в охлаждающей пластине, а также уравнительный клапан в качестве элемента управления регулятора в сочетании с механизмом взвешивания или загрузки, имеющим ...

ГИДРАВЛИЧЕСКАЯ СИСТЕМА

ПРЕДОХРАНИТЕЛЬНЫЙ КЛАПАН

... 1. Предохранительный клапан, включающий: ! корпус, имеющий наружную резьбу для подключения резьбовым соединением к другому корпусу, имеющему камеру, находящуюся под давлением; ! наконечник предохранительного клапана с отверстием, подключающийся к корпусу резьбовым соединением с внутренней резьбой корпуса, причем наконечник предохранительного клапана содержит запорную поверхность; и ! поршневой узел равновесного давления, выполненный с возможностью скользящего перемещения внутри корпуса по отношению к наконечнику предохранительного клапана и запорной поверхности для управления прохождением текучей среды между находящейся под давлением камерой и наконечником предохранительного клапана. ! 2. Предохранительный клапан по п.1, отличающийся тем, что поршневой узел равновесного давления и корпус, по меньшей мере частично, образуют камеру равновесного давления. ! 3. Предохранительный клапан по п.2, отличающийся тем, что камера равновесного давления соединяется по текучей среде с камерой, находящейся ...

РЕГУЛЯТОРЫ ДЛЯ ТЕКУЧЕЙ СРЕДЫ, СОДЕРЖАЩИЕ ГОФРИРОВАННЫЕ МЕМБРАНЫ

ОБРАТНЫЙ КЛАПАН ДЛЯ РАСПЫЛИТЕЛЯ И ТРУБА РАСПЫЛИТЕЛЯ

... 1. Обратный клапан для распылителя, содержащий корпус клапана, перекрыватель (30; 74) и седло (26; 72) клапана, причем перекрыватель (30; 74) расположен с возможностью перемещения по меньшей мере в продольном направлении корпуса клапана, отличающийся тем, что перекрыватель (30; 74) соединен с корпусом клапана посредством сильфона (32; 76), расположенного параллельно продольному направлению, причем перекрыватель (30; 74) за счет пружинящего действия сильфона (32; 76) подпружинен в направлении седла (26; 72) клапана.2. Обратный клапан по п.1, отличающийся тем, что сильфон (32; 76) как на его радиально внутренней стороне, так и на радиально наружной стороне, по меньшей мере, при открытом положении обратного клапана подвергается воздействию находящейся под давлением рабочей среды, предназначенной для распыления.3. Обратный клапан по п.1, отличающийся тем, что внутри сильфона (76) предусмотрена проходная труба (78), причем проходная труба (78) образует часть канала для прохождения рабочей среды ...

ВЕНТИЛЯЦИОННЫЙ КЛАПАН

Изобретение относится к вентиляционному клапану для контроля внутреннего давления в баке топливного бака. Вентиляционный клапан имеет, по меньшей мере, один корпус с, по меньшей мере, одним первым соединением с топливным баком, и с, по меньшей мере, одним вторым соединением, которое может быть соединено с продувочной линией, ведущей к фильтру паров топлива. Вентиляционный клапан содержит, по меньшей мере, один клапанный элемент, который удерживается в седле клапана в положении, в котором он закрывает первое соединение посредством силы тяжести и/или подпружинивания и после того, как заданный порог давления превышен, поднимается от седла клапана, а когда заданный порог давления снижен, возвращается в исходное положение. Клапанный элемент и/или направляющая деталь клапанного элемента имеет/имеют, по меньшей мере, одно выпускное отверстие, которое образует перепускной канал для разрыва потока, который возникает, например, во время обратного движения клапанного элемента. Исключается возможность ...

ТОПЛИВНЫЙ НАСОС

Полезная модель относится к двигателестроению. Топливный насос 1 включает перепускной клапан 2 и предохранительный клапан 3, размещенные в отдельных отверстиях в корпусе топливного насоса. Контакт клапанов с корпусом топливного насоса происходит по линии контакта конической поверхности, выполненной на клапане, и уплотнительной конической поверхности, выполненной в корпусе топливного насоса. Перепускной и предохранительный клапаны и их седла 4, 5 могут быть однотипными. Оба клапана могут быть выполнены, например, в виде тел вращения, образованных сочетанием цилиндрических и конического участков с радиусными зонами сопряжения между ними, с размещением на каждом центрирующей цилиндрической части по разные стороны от уплотнительной поверхности, по которой происходит контакт запорного элемента и корпусной детали. Седла клапанов могут быть изготовлены из сталей типа ХВГ и иметь твердость (45-50) HRC.

Vorrichtung zur Druckerhöhung eines Fluids mit einem Druckbegrenzungsventil

Die vorliegende Erfindung betrifft eine Vorrichtung zur Druckerhöhung eines Fluids mit einem Druckbegrenzungsventil sowie ein Verfahren zur Druckerhöhung eines Fluids.

Ventil mit Einstellung von Betriebsparameter bei der Montage und Pumpe mit diesem Ventil

Verdichter für Tieftemparaturkälteanlage mit von aussen einstellbarem Bypass- oder Ablassventil.

Druckbegrenzungsventil insbesondere für ein Common-Rail-Einspritzsystem

Druckbegrenzungsventil, insbesondere zum Begrenzen des Fluiddruckes in einem Verteilerrohr eines Common-Rail-Einspritzsystems, mit einer Durchgangsbohrung (24) mit einem ersten Bohrungsabschnitt (28a), der mit dem zu begrenzenden Fluiddruck beaufschlagbar ist, einem zweiten Bohrungsabschnitt (28b), einem zwischen dem ersten Bohrungsabschnitt und dem zweiten Bohrungsabschnitt angeordneten Ventilsitz, einem in dem zweiten Bohrungsabschnitt verschiebbar geführten Ventilschaft (40), der in Richtung des Ventilsitzes (41) vorgespannt ist, sodass eine Verbindung zwischen den Bohrungsabschnitten (28a, 28b) sperrbar ist, und mit einem zwischen dem Ventilschaft und dem zweiten Bohrungsabschnitt ausgebildeten Fluiddurchlass, der mit einer Ausströmöffnung (62) verbunden ist, wobei der wirksame Durchströmquerschnitt des Fluiddurchlasses von einem kleinen Wert während eines ersten Teils der Bewegung des Ventilschaftes (40) weg vom Ventilsitz (41) auf einen größeren Wert während eines zweiten Teils der ...

Kettenspanneinrichtung und Entlastungsventileinheit

Es sind eine Kettenspanneinrichtung und eine Entlastungsventileinheit vorgesehen, mit denen eine Verringerung der Anzahl von zu bearbeitenden Teilen und der Anzahl von Montageschritten ermöglicht wird, die Menge an Öl, die nach außen ausströmt, verringert wird und eine Beschädigung eines Rückschlagventils verhindert wird, ohne dass die Kettenspanneinrichtung vergrößert werden muss. Die Kettenspanneinrichtung umfasst eine Rückschlagventileinheit, die eine Rückströmung von Öl, das in eine Öldruckkammer strömt, unterbindet und eine Entlastungsventileinheit, die das Öl freigibt, wenn der Druck in der Öldruckkammer einen vorbestimmten hohen Druck erreicht oder übersteigt. Die Rückschlagventileinheit ist als Ventilelement der Entlastungsventileinheit angeordnet, und die Entlastungsventileinheit und die Rückschlagventileinheit sind einstückig miteinander ausgebildet.

Federbelastetes Sicherheitsventil fuer Dampfkessel

Safety valve

Safety valves have hitherto always been designed as angle-body valves. The diversion of flow which occurs when the valve responds due to this mode of construction leads to additional bending moments on the inlet and outlet to the housing, particularly in the case of safety valves with a large nominal diameter. To avoid the deflection forces, which can only be controlled with the use of expensive valve holders, the invention provides a safety valve, the inlet (1) and outlet (2) of which are arranged on opposite sides of the housing (3). An annular space (27) is formed between the outer surface of a hood (30) covering the spring (19) and the inner wall of the housing (3), allowing symmetrical flow through the valve body. ...

Safety valve for hydrant

A water pressure safety device comprises a spring loaded valve housed within a unit 1 that screws onto an existing washout or hydrant valve 6. When the pressure within a water supply main 13 to which the device is connected increases above a normal working pressure range, the valve opens and then closes when the water pressure returns to normal. The valve opening pressure may be adjusted by turning bolt 3.

IMPROVEMENTS IN OR RELATING TO RELIEF VALVES

... 1,240,937. Valves. SWINNEY BROS. Ltd. 19 Feb., 1970 [21 Feb., 1969], No. 9427/69. Heading F2V. A relief valve comprises a gravity operated element 17 arranged so as to fall, when the valve 8 is opened under pressure, into a position to maintain the valve 8 open even if the excess pressure actuating the valve is not sustained. As applied to a filter, in which fluid is filtered radially inward through a filter 1, excess pressure acts on the valve member 8 through ports 10 in a fixed plate 4, to by-pass the filter. In another construction, the valve 8 is allowed to close after it has been opened by excess pressure, leaving the gravity operated element 20 in a position to indicate that relief has taken place (Fig. 3, not shown). The cover 16 of both constructions is made from a transparent material to show the position of the ball element 17.

Seal support system pressure tracking valve

Valve

Improvements in or relating to pressure-regulating valves for hydraulic systems

... 711,353. Valves. SPENCER, D. L., and SPERRY GYROSCOPE CO., Ltd. May 16, 1952 [May 25, 1951], No. 12326/51. Class 135 In a pressure regulating valve having a channel leading from the valve outlet so that the outlet pressure acts to move the movable valve element towards closure, the said outlet pressure is applied to the movable valve element through an auxiliary movable member whose movements are hydraulically damped and a resilient coupling. As shown, the valve comprises a movable valve element 2 controlling an inlet passage 1 and connected by a spring 8 to an auxiliary movable member 12, comprising a piston 6 subjected on its upper face to the outlet pressure transmitted through a channel 4 and a damping piston 7. The damping piston 7 has small diameter holes 9 therethrough so that before the auxiliary member 12 can move to adjust the position of the valve element 2 pressure fluid must be transferred from one side of the piston 7 to its other side which prevents sudden movements of the ...

PRESSURE-LIMITING VALVE

A pressure-limiting valve comprises a cylindrical actuator piston guided displaceably in a bore and held under the pressure of a spring in the closure position of the valve. Longitudinally-directed throughflow passages are formed in the actuator piston on the pressure-loaded end and are arranged concentrically with respect to the central axis and open into an annular groove extending around and in the circumferential surface of the actuator piston. This groove is sealed off by a gasket mounted in the bore wall. When the set pressure predetermined by the closure spring is exceeded, the actuator piston travels with the gasket over the annular groove so that the pressure medium can flow away through the outlet opening.

Water pressure reduction device

A water pressure reduction connecting device comprises a connecting body 10 having an abutment section 121 to mount to a fixing groove 123 of an end sheath 124, and a smaller-diameter inlet chamber (14, Fig. 3) integrally extending therein for the accommodation of a movement element 20 having a water-influx passage therein 21. The inlet chamber 14 has inlet orifices (141, Fig. 3) corresponding to an inlet end 11 of the connecting body 10. The movement element 20 has restrictive protrusions 23 to be inserted into the inlet orifices 141, and an annular groove 25 with a watertight ring 24 to seal tight against the inlet chamber 14, forming a restrictive space therebetween. The movement element 20 also has a larger diameter water sealing section 27 to abut tight against the abutment section 121. Therefore, the movement element 20 can slide back and forth according to the change of water pressure from the inlet and outlet ends to alter the space revealed by the inlet orifices 141 and regulate ...

Valve

The ON behavior of a pressure switch or a valve (134) differs from its reset behavior by virtue of the fact that the movable pressurized part (126) is connected to one of the parts of a magnet assembly (112, 114) which are movable in relation to one another.

Full nozzle relief valves

A full nozzle relief valve comprises a body (1) having a basal bore (4) through which an annular nozzle (5) extends into the interior of the body (1). The nozzle (5) is insertable fully into position in the bore (4) as an axially sliding fit and is secured in position by a threaded locking ring (19). An O-ring (22) located in an external annular recess in the nozzle (5) provides a fluid-tight seal between the nozzle (5) and the body (1).

Improvements in safety valves

... 256,036. Cockburns, Ltd., and Mac- Nicoll, D. July 13, 1925. Safety - valves. - A safety-valve of the kind in which a pair of helical loading springs 6 are arranged side by side between parallel bridge pieces 4, 5 strung on the valve spindle 2 has the upper bridge piece arranged to bear against a guide bush 8 for the spindle adjustably mounted in the casing.

Pressure release valve

Pressure protection valve

... 1,024,524. Valves. BENDIX-WESTING- HOUSE AUTOMOTIVE AIR BRAKE CO. Jan. 23, 1964 [Jan. 28, 1963], No. 3040/64. Heading F2V. A pressure-responsive valve comprises a closure member 18 for engagement with a fixed valve seat 16, a lost-motion connection between the closure member and an actuating member 30 on which resilient means 42 and pressure responsive means act in valve closing and opening directions respectively, and stop means for limiting displacement of the actuating member. When pressure at an inlet port 12 reaches a value determined by the setting of a screwed cap 46 for adjusting the resilient means 42 it acts through a passage 55 to lift the member 30 and take up the lost-motion between flanges 24 and 33. If the pressure at a port 14 should be higher than that at the port 12 the closure member is lifted against a light spring 62.

Valve

Pressure relief valve apparatus

An isolating apparatus for installation between the annular seating surface of the inlet nozzle of a fluid pressure relief valve and the corresponding surface of the inlet flange to which the relief valve is to be connected, comprises a support body having a cylindrical portion 64 which in use extends into the interior of the inlet flange a radially extending annular flat flange portion 62 at one end and a scored reverse buckling rupture disk 68 which is seal welded to the other end of the cylindrical portion to isolate the interior of the relief valve from the interior of the vessel or system being protected. ...

Pressure relief valve

A pressure relief valve comprises a valve body having an inlet, a first valve closure member 38, means 42, 44 for biasing the first valve closure member 38 toward engagement with a first valve seat 35, and a second valve closure member 40 engagable with a second valve seat 36 and responsive to pressure at the valve inlet. A retaining member 74 retains the second valve closure member 40 in engagernent with the second valve seat 36, in which position the first valve closure member 38 is isolated from the valve inlet. The retaining member 74 is configured to rupture at a predetermined pressure on the second valve closure member 40, allowing it to move out of engagement with the second valve seat 36 and permitting communication of the first valve closure member 38 with the inlet.

High pressure relief valve flow disruptor

Valve test method and apparatus

RELIEF VALVE

... 1,209,101. Valves. CATERPILLAR TRACTOR CO. 1 March, 1968 [15 May, 1967], No. 10163/68. Heading F2V. A relief valve comprises a housing 11 having an inlet 26 and an outlet 30 connected with a chamber 24, a valve seat 36 within the chamber, and a valve spool 56 mounted for reciprocation within the housing, the spool being biased by a spring 52 into contact with the seat and being opened by a predetermined fluid pressure in the chamber. The fluid pressure acts on a differential surface area A to displace the spool to the right against the spring 52 and force fluid past a check valve 70 into a bore 66 containing a piston 64. The latter forces fluid through a restriction 74 into the outlet 30 during the return movement of the spool to provide damping.

LIQUID PROCESSING SYSTEM AND METHOD OF OPERATION

SICHERHEITSVENTIL FÜR EINE GASVERSORGUNGSLEITUNG

PRINTING FEEDING VALVE

PRESSURE RELIEF VALVE

PROCEDURE FOR THE PRODUCTION OF A RELIEF VALVE AND RELIEF VALVE

Kraftstoffversorgungsanlage

The invention relates to a fuel supply system and particularly provides a common-rail fuel supply system applied to the internal combustion engine of a marine diesel engine, which comprises a low-pressure area. The low-pressure area is provided with a pumping device for pumping the fuel from the low-pressure area to a high-pressure area. Inside the high-pressure area between the pumping device and an ejector applied to a cylinder, an accumulation system is permanently arranged. The accumulation system comprises an accumulation unit coupled through a high-pressure pipeline. The accumulation system is connected with the pumping device through at least one high-pressure pipeline permanently arranged in a high-pressure condition. The accumulation system is connected with the ejector through an ejection loop by means of a high-pressure pipeline occasionally arranged in a high-pressure condition. A pressure limiting valve and a purge valve are interacted with one accumulation unit of the accumulation ...

RELIEF VALVE

VALVE FOR THE REGULATION OF PRESSURES

PRESSURE RELIEF DEVICE.

VALVE, IN PARTICULAR FOR THE LUBRICATING OIL FILTER OF AN INTERNAL-COMBUSTION ENGINE.

RELIEF VALVE UNIT, IN PARTICULAR FOR FUEL STEAMS

RELIEF VALVE DEVICE FOR A TANK TRUCK

Safety relief valve assembly for a fluid displacement apparatus

Environmental sealing

ADAPTER AND ITS USE

Relief valve with position indication

A surge relief valve includes a piston housing and a piston located within the housing for reciprocal motion. The surge relief valve also includes a position sensor to resolve the axial position of the piston relative to the piston housing. The position sensor includes a sensor body coupled to the piston housing and a movable element configured to move linearly relative to the sensor body and configured to move axially with the piston. At a least portion of the sensor body is located within the piston housing.

PRESSURE AND SAFETY RELIEF VALVE

HIGH PRESSURE REGULATOR VALVE

Pressure relief valve with pneumatic pilot

FLOW CONTROL VALVE

A flow control valve comprising spool means and overload relief valve means built in the spool means. A filter is disposed on the upstream side of the relief valve means. When a hydraulic oil is passed through the filter, foreign materials are removed from the oil and the pulsation of the oil is inhibited or eliminated.

VALVE SEALS

... "IMPROVEMENTS IN AND RELATING TO VALVE SEALS" A pressure relief valve adapted in use to relieve excess pressure within a vessel. The valve comprises a valve seat (20) and a moveable valve member (28) which is resiliently biased towards the valve seat (20) by coil springs (30) to maintain the valve in a normally closed position. A valve seal (52) is carried by the moveable valve member (28), between the moveable valve member (28) and the valve seat (20), to seal the gap therebetween when the valve is closed. The valve seal (52) has an annular pressure sealing face (54) which in the valves normally closed position sealingly co-operates with the valve seat (20). A resilient biasing member (58) is disposed behind the annular pressure sealing face (54) so that in the valves normally closed position. the annular pressure sealing face (54) is maintained in sealing contact with the valve seat (20) formed integrally with the annular pressure sealing face (54) and disposed radially inward thereof ...

RELIEF VALVE ISOLATING APPARATUS

A one-piece fluid pressure rupturable relief e valve isolating apparatus comprised of a cylindrical support body having a flat annular margin of a scored concaveconvex reverse buckling rupture disc welded to one end, a flat annular ring being welded between the disc and the support body so as to project interiorly of a transition between the concave-convex and flat marginal portions of the disc. The arrangement permits a welded structure without the welding operation substantially affecting the rupture pressure of the disc whilst reducing the risk of separation of fragments of the disc on rupture.

HYDRAULIC CONTROL VALVE FOR MINING JACK

Abrege Descriptif L'invention concerne une valve de coulissement, notamment pour le vérin d'un étançon de mine. Le canal d'arrivée et de pression est séparé du canal de fuite par une membrane qu'un ressort repousse sur son siège. La rondelle d'appui permet à la membrane de conserver une forme plane, même lorsque la poussée du ressort est très prépondérante.

PRESSURE RELIEF DEVICE

An improvement in a pressure relief device of the type used in a power transformer, the improvement consisting of a flat circular gasket fixedly mounted about its inner periphery, and having its outer periphery flexibly arranged for wiping contact with the inner surface of a cup-like valve member.

REDUCING VALVE

The present invention relates to a reducing valve which reduces a pressure on the primary side to a predetermined pressure on the secondary side by changing the opening of a valve head with the energy of a fluid itself which passes through. A movable wall of an operating section and an operating rod for transmitting the displacement of the movable wall to the valve head are connected by a curved wall comprising a nearly semispherical surface expanding outwardly in the diametrical direction of the operating rod or a plurality of curved surfaces.

PRESSURE RELIEF VALVE WITH STOP

A pressure relief valve with a stop disposed thereon to ensure components of the pressure relief vale are properly aligned and tightened properly. This allows the components and pressure relief valve to be properly installed and the pressure relief valve to function properly. The stop feature also reduces the time of installation and amount of labor needed to install pressure relief valves and their components.

COINED SEAT FOR METAL-TO-METAL SEATING

A pressure relief valve (PRV) is provided. The PRV includes a first housing part and a second housing part. The first housing part includes first major and minor surfaces and a first deformed corner at an intersection of the first major and minor surfaces. The second housing part includes second major and minor surfaces and a second deformed corner at an intersection of the second major and minor surfaces. The first and second housing parts are disposed with the first and second minor surfaces facing oppositely at a distance to define a metering hole. The first and second deformed corners are deformed by a coining ball to cooperatively form a coined seat at the metering hole for seating and re-seating a sealing ball. The first and second deformed corners have respective radii of curvatures resulting from deformation which are larger than that of the sealing ball.

SWIVEL JOINT WITH ELECTRICAL CONDUCTIVITY GREASE FITTING

A swivel joint includes a tail section and a body portion that define a passageway therethrough and which can rotate relative to one another. One or more seals and bearings can be disposed between the tail section and the body portion. An electrical conductivity grease fitting can be mounted within a bore hole in the body portion. The electrical conductivity grease fitting can have a lubricant passed therethrough to lubricate the bearings. The electrical conductivity grease fitting has a first portion in electrical communication with the body portion and a second portion that is biased into electrical communication with the tail section to maintain electrical conductivity between the tail section and the body portion.

PRESSURE RELIEF VALVE

A pressure relief valve includes a valve body having a main bore, an inlet bore which is connected to the main bore, an outlet bore which extends through a side of the valve body, and a valve bore which connects the inlet bore with the outlet bore. A valve member is positioned in the valve bore and is movable between a closed position in which a fluid in the inlet bore is prevented from flowing into the outlet bore and an open position in which the fluid in the inlet bore is permitted to flow into the outlet bore. The valve member is movable from the closed position to the open position in response to an overpressure event in the main bore. The valve body further includes a return bore which connects the inlet bore with the main bore.

PRESSURE RELIEF VALVE

A pressure relief valve includes a valve body having a main bore, an inlet bore which is connected to the main bore, an outlet bore which extends through a side of the valve body, and a valve bore which connects the inlet bore with the outlet bore. A valve member is positioned in the valve bore and is movable between a closed position in which a fluid in the inlet bore is prevented from flowing into the outlet bore and an open position in which the fluid in the inlet bore is permitted to flow into the outlet bore. The valve member is movable from the closed position to the open position in response to an overpressure event in the main bore. The valve body further includes a return bore which connects the inlet bore with the main bore.

TORSIONAL SPRING FOR A SLAM-SHUT SAFETY DEVICE

A cam assembly for use in a slam- shut safety valve includes a cam having an elongated first cam arm, and the cam is pivotable about a rotational axis. The cam assembly also includes a torsional spring having a pair of stationary outer arms and a pair of pivotable inner arms, wherein the pair of stationary inner arms is coupled to a portion of the first cam arm. The pair of inner arms is adapted to act on the first cam arm to bias the cam into a position that allows the cam to be relatched in a valve rearming process. The pair of inner arms is symmetrically disposed about the first cam arm to prevent lateral displacement of the cam.

LOW GAIN PRESSURE RELIEF VALVE FOR A FLUID PUMP

AA pressure relief valve (10) includes a casted, metal material housing (20) including a passage (16) therein along a longitudinal axis (X) and inlet and outlet ports (12, 13, 14) substantially perpendicular to the longitudinal axis, the outlet port having a wall (18) at an angle less than perpendicular to the longitudinal axis wherein and at a draft angle of the casting of the housing (20). The housing includes a counterbore (17) at the intersection of the wall of the passage and the wall of the outlet port (14) to provide a counterbore surface that is substantially perpendicular to the wall of the passage around the outer circumference of a valve body (30) in the passage. The top end (32) of the valve body (30) includes a reduced diameter portion (44) and a tapered portion (45) between the reduced diameter portion and the top of the valve body.

PRESSURE VOLUME REGULATOR

Pressure volume regulator (20) for control of supply and pressure of barrier fluid for pumps and compressors subsea, comprising an inlet (18) for barrier fluid at an inlet pressure, a first outlet (19) and a second outlet (15), the inlet pressure is higher than the first outlet pressure that is higher than the second outlet pressure. The pressure volume regulator is distinctive in that the inlet and the second outlet are interlocked between a movable longitudinal interlock member (5) with valve elements operatively arranged at either end, the length of the interlock member plus said valve elements is shorter than the distance between an open-close valve mechanism of the inlet and an open-close valve mechanism of the second outlet.

ACCESSORY FOR DETECTING LEAKING OF SAFETY VALVES

An accessory for detecting leaking and flowing conditions in safety valves and safety relief valves utilizes a load sensing device to sense a change in a load on the valve of the safety relief valve caused by a displacement of the valve disc and provides a low-voltage output signal indicating the nature of the load change. C:\dms\march.dir%%RESULT%%05465.01 ...

PRESSURE RELIEF VALVE WITH PNEUMATIC PILOT

A pressure relief valve for rapidly exhausting air pressure from a source of such pressure. The valve includes a housing containing a valve member located across a main port provided in the housing that directly receives the air pressure from the pressure source. A second port is provided for receiving a pilot pressure from the pressure source, and a piston is located adjacent the second port. At least one exhaust port is provided in the housing for exhausting to atmosphere the air received through the main port and against the valve member.

Sicherheitsventil.

Dispositif de filtrage et de limitation de pression.

Sicherheitsventil mit eingebauter, akustischer Signalvorrichtung.

Sicherheitsventil, insbesondere für Dampfkochtöpfe.

Uberdruckregelventil für hydraulische Anlagen.

Sicherheitsventil.

Générateur de vapeur.

Druckregel-Einsatz

Relief valve for water blocked toilet pipes - is screwed into cleaning socket and press. operated against spring

A relief valve for water and gas in blocked toilet pipes operates automatically when the system pressure reaches a high level. It is screwed into the socket provided for cleaning out. A valve with a cone shaped head (26) fits into a body (29) threaded into the socket (10). The stem (24) is loaded by a spring (25) to open at a predetermined pressure. Two bleed holes (23U, 23L) are provided to balance the system against any normally present pressures. The pressure required to keep the valve in the "Relieve" position is less than that required to open it. This ensures complete draining.

DIFFERENTIAL PRESSURE DELIMITATION VALVE.

Container with gas and safety valves

The container with gas and safety valves consists of a housing with a sealed cover (18) which contains two identical valves (3), facing in opposite directions. The body of each valve is welded into the cover and contains a moving shut-off element (8) with a seal ring (11) interacting with a conical seat. Each shut-off element is hollow and contains a spiral spring wound round an inner cylindrical support (13) which has its foot (14) fixed to the valve body by a bayonet joint.

Pressure-relief valve used in shelters for outgoing air comprises a closing device connected via an arm to a spring bearing exerting an adjustable pre-tension on the closing device determined by the opening pressure of the exhaust gas flow

Pressure-relief valve for outgoing air from gas-tight spaces or containers comprises a closing device with an automatic closing organ and an inner sleeve open at one end and closed at the other end by the closing device. The closing device in the rest position lies tightly against a drawn-out edge designed as a snug fit. The closing device is connected via an arm to a spring bearing exerting an adjustable pre-tension on the closing device determined by the opening pressure of the exhaust gas flow. Preferred Features: At least one valve housing and the closing device are made of an aluminum, gray cast iron or cast steel alloy.

PRESSURE REDUCING VALVE.

Safety valve for watch.

La présente invention se rapporte à une soupape de sécurité (1) pour montre comprenant une tête (3) montée mobile sur un tube (4) et apte à se déplacer entre une position ouverte et une position fermée, ledit tube (3) comportant dans son volume intérieur un premier ressort (14) et étant caractérisé en ce que: il est pourvu sur une face externe d’une surface de came (7) permettant un déplacement manuel et un déplacement automatique de la tête (3) vers sa position ouverte, il comporte à la suite du premier ressort (14) un second ressort (16) ayant une raideur supérieure à celle du premier ressort (14).

Safety valve for watch.

La présente invention se rapporte à une soupape de sécurité (1) comprenant: – un tube (3) destiné a être fixé a une boîte de montre (4), – une tête évidée (2) montée mobile en rotation autour du tube (3) – un premier élément monté fixe par rapport à la tête (2) et – un second élément solidaire de la tête (2), caractérisée en ce que le premier élément et le second élément comportent chacun un ou plusieurs passages (12,13) permettant l’écoulement d’un gaz, le mouvement en rotation de la tête (2) permettant de mettre en communication les passages (12,13) du premier élément et du second élément pour l’échappement du gaz depuis l’intérieur vers l’extérieur de la boîte en cas de surpression à l’intérieur de la boîte (4), ou inversement permettant de désaligner les passages (12,13) du premier élément et du second élément pour empêcher l’échappement du gaz.

Steam pressure release valve

The invention discloses a steam relief valve used for connecting a steam outlet of a boiler. The steam relief valve at least comprises a fixed seat, a valve spool set, a valve cap and a safe spring. The relief valve of an iron of the technical proposal of the invention is characterized in that: a locking part is directly arranged on the fixed seat, a couple part is directly arranged on the valve spool set or the valve cap, the couple part and the fixed seat compose into a clutch structure, thereby solving the defects of complicated structure and high manufacture cost brought by a clutch ring that is additionally existed in the background technology.

Регулятор давления

1. Регулятор давления, содержащий корпус с полостями входа и выхода, между которыми расположено седло, нормально закрытое клапаном, а также управляющий элемент в виде кольцевого поршня, установленного в корпусе с образованием камеры низкого давления и камеры управления, жестко связанного с клапаном и подпружиненного в направлении закрытия седла возвратной пружиной, расположенной в камере низкого давления, отличающийся тем, что поршень снабжен демпфирующей пружиной, размещенной в камере управления и выполненной с жесткостью и усилием предварительного сжатия, меньшими жесткости и усилия предварительного сжатия возвратной пружины соответственно.2. Регулятор по п. 1, отличающийся тем, что клапан выполнен цилиндрическим, а седло снабжено неметаллическим уплотнительным кольцом для взаимодействия с клапаном.3. Регулятор по любому из пп. 1 и 2, отличающийся тем, что корпус выполнен цилиндрическим с кольцевыми камерами низкого давления и управления и с соосно расположенными полостями входа и выхода.4. Регулятор по любому из пп. 1 и 2, отличающийся тем, что камера управления выполнена с возможностью подключения к управляющему распределителю, а камера низкого давления - к атмосфере или к сливному резервуару текучей среды.5. Регулятор по любому из пп. 1 и 2, отличающийся тем, что в камере низкого давления и камере управления установлены шайбы для регулирования предварительного сжатия возвратной и демпфирующей пружин соответственно. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F16K 17/04 (13) 162 299 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2016102374/06, 26.01.2016 (24) Дата начала отсчета срока действия патента: 26.01.2016 (45) Опубликовано: 10.06.2016 Бюл. № 16 1 6 2 2 9 9 R U (57) Формула полезной модели 1. Регулятор давления, содержащий корпус с полостями входа и выхода, между которыми расположено седло, нормально закрытое клапаном, а также управляющий элемент в виде кольцевого ...

Шариковый клапан

Полезная модель Шариковый клапан включает корпус с седлом, шарик и пружину с витками разного диаметра. Ограничитель хода шарика выполнен в детали, устанавливаемой в корпус. Пружина выполнена двухконусной с сопряжением конических частей по вершинам, опиранием опорным торцом большего конуса в опорную плоскость детали, являющейся ограничителем хода шарика, и центрированием по опорным виткам большего конуса. Шарик размещен в специально выполненном для него посадочном месте в форме конуса, сформированном на пружине в процессе ее навивки. Посадочное место на пружине под шарик выполнено с обеспечением контакта шарика не менее чем с двумя полными витками меньшего конуса пружины. Ограничитель хода шарика может быть установлен в корпус по резьбе. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 209 196 U1 (51) МПК F16K 15/04 (2006.01) F16K 17/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F16K 15/044 (2021.08); F16K 17/0406 (2021.08) (21)(22) Заявка: 2021127258, 15.09.2021 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" (RU) Дата регистрации: 04.02.2022 (45) Опубликовано: 04.02.2022 Бюл. № 4 U 1 2 0 9 1 9 6 R U (54) ШАРИКОВЫЙ КЛАПАН (57) Реферат: Полезная модель Шариковый клапан включает корпус с седлом, шарик и пружину с витками разного диаметра. Ограничитель хода шарика выполнен в детали, устанавливаемой в корпус. Пружина выполнена двухконусной с сопряжением конических частей по вершинам, опиранием опорным торцом большего конуса в опорную плоскость детали, являющейся ограничителем хода шарика, и центрированием по опорным виткам большего конуса. Шарик Стр.: 1 U 1 Адрес для переписки: 656023, Алтайский край, г. Барнаул, пр-кт Космонавтов, 6/2, оф. 1, Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий", бюро рационализации и изобретательства (56 ...

Self-aligning axially constrained regulator valve assembly

A valve poppet ( 54 ) is provided for use in a regulator valve assembly ( 200 ) for regulating the pressure of a flowing gas through a gas flow pressure regulator ( 300 ). The valve poppet is includes a valve disc ( 54 ) having a flexible portion ( 60 a ) so as to permit upward and downward movement of a valve stem ( 52 ) in an axial direction. The valve disc may have an edge portion ( 60 b ) that provides a preloading force to self-align the valve disc within a valve seat ( 70 ), and axially constrain the motion of valve stem. The valve stem ( 52 ) may extend perpendicularly relative to the valve disc from a sealing portion ( 58 ). The movement of the valve stem is axially constrained and results in upward and downward movement of the flexible portion when the valve is opened and closed. The flexible and end portions of the valve disc may be formed of a plurality of spiral arms for self-aligning and axially constraining the valve disc.

Closure device

A closure device for a container of compressed gas, particularly a capsule having a water capacity in the range of 5 to 100 ml, comprises a shut-off valve 122 and a pressure-reducing valve 120 , particularly a pressure regulating valve. The shut-off valve 122 is on the lower pressure side of the pressure-reducing valve 120 . The closure device may also comprise a fill valve 118 to enable the container to be recharged with gas.

Pressure relief valve

A pressure relief valve for use submerged in a body of water includes a first seal element in a water-filled chamber having an outlet into the body of water. In addition, the pressure relief valve comprises a spring in a water-filled chamber biasing the first seal element into sealing engagement with a second seal element and forming a seal until the pressure opposing the seal equals or exceeds a predetermined pressure.

Gas Generator with Combined Gas Flow Valve and Pressure Relief Vent

A gas generator includes a reactant capable of producing a gas and a gas outlet valve that can function as both a gas flow valve and a pressure relief vent, using the same gas flow path through the valve. When the valve is closed and the pressure within the gas generator is below a threshold pressure, a moveable valve member is biased against a valve seat to block the outlet port. When gas generator is coupled to the apparatus, an actuator is inserted into the valve, displacing the moveable valve member and separating it from the valve seat to open the valve. When the gas generator is uncoupled, pressure at or above a threshold displaces the moveable member, separating it from the valve seat to open the outlet port so pressure can be released to the external environment.

FLUID VALVE ARRANGEMENT

A pressure controlling valve includes a slidable spool arranged to be spring loaded towards a neutral position. A first port and a second port are connected to allow a fluid flow through the valve. A first and a second pilot port are connected to a cavity adjacent a respective first and second end surface of the spool. The pilot ports are connected to a fluid conduit on either side of a fluid device causing a pressure drop in the fluid conduit and the fluid device is connected to one of the first or second ports. The spool is displaced against the spring load in response to a pressure difference between the first and the second pilot port, whereby a control surface of the spool is arranged to restrict the fluid flow through the valve when the control surface approaches a central cavity. 121-. (canceled)22. A fluid valve arrangement comprising:a fluid conduit arrangement having a first conduit and a second conduit, the first conduit being connectable with a supply of fluid pressure and the second conduit being connectable with a hydraulic consumer;wherein the fluid valve arrangement includes a pressure controlling valve with a valve body having a slidable spool arranged to be spring loaded towards a neutral position in the valve body, a first port and a second port for a fluid, the first and second ports being connected to allow a fluid flow between the first port and the second port, a first pilot port connected to a cavity adjacent a first end surface of the spool, and a second pilot port connected to a cavity adjacent an opposite, second end surface of the spool, wherein the spool comprises a first control surface and a second control surface located in a first cavity and a second cavity, respectively, which first cavity and second cavity each has a cross-sectional area that is larger than the cross-sectional area of the spool; that the first cavity and the second cavity are connected by a third cavity, that the spool is operable to be displaced in response to a ...

Slam-Shut Safety Device Having a Cage

A slam-shut device includes an inlet, an outlet, a valve seat, and defines a flow path. A valve disc is shiftable between an open position and a closed position, and reset pin responsive to an actuator is coupled to the valve disc and shifts between an untripped position and a tripped position. A cylindrical cage is mounted within the valve body and is disposed in the flow path, and includes a plurality of flow apertures slidably receives the valve disc. The cage includes a first end adjacent the valve seat and a second end away from the valve seat, and the cage forms a cylindrical recess disposed adjacent the second end of the cage and spaced from the flow apertures.

Valve for Use in Chemical Injectors and the Like

A valve having an outer housing defining a central bore with a fluid inlet and a fluid outlet. A check dart assembly, valve seat and piston assembly are retained within the central bore. The valve is moveable between open and closed positions in response to fluid flow into the fluid inlet of the valve. 1. A valve comprising:an outer housing defining a central bore with a fluid inlet and a fluid outlet;a check dart assembly retained within the bore and having a check dart with a head portion and a shaft portion, the shaft portion defining an axial flow bore and the head portion having a fluid passage to permit fluid flow into the axial flow bore of the shaft portion;a valve seat retained within the central bore of the outer housing and having a flow passage that is selectively opened and closed by the check dart; anda piston assembly retained within the central bore of the outer housing, the piston assembly having a piston member that extends through the valve seat flow passage and contacts the check dart, the piston member being moveable in response to fluid pressure to open the flow passage of the valve seat by moving the check dart.2. The valve of wherein the check dart assembly further comprises a spring that biases the check dart into engagement with the valve seat to close the valve seat flow passage.3. The valve of wherein the piston member of the piston assembly further comprises:an enlarged base portion;a prong portion extending axially from the base portion; andan axial flow passage defined within the base portion.4. The valve of further comprising a lateral flow passage formed within the base portion.5. The valve of further comprising:a sleeve radially surrounding the enlarged base portion and wherein the sleeve blocks fluid flow through the lateral flow passage when the valve is closed and allows fluid flow through the lateral flow passage when the valve is open.6. The valve of further comprising:an adjustment member that compresses or uncompresses the ...

CHECK VALVE

A valve member having a valve part and a piston part is accommodated in a piston accommodation cylinder part of a case reciprocatably, and a damper chamber that is substantially a sealed space is formed in an anti-valve seat side in the valve member so that fluid flows without flowing via the damper chamber. Accordingly, since the fluid does not pass through the damper chamber, a fluid force that occurs in the piston part due to a fluid flow does not change easily, thus it becomes difficult to increase hunting at the valve members. Moreover, in a vibrational component in the valve member reciprocating direction of the valve members, amplitude of the vibration can be decreased by a damping force generated in the damper chamber. 1. A check valve comprising:a case member having an entrance-side fluid passage where fluid flows in, an exit-side fluid passage where fluid flows out, and a valve seat disposed in a downstream end of the entrance-side fluid passage are formed;a valve member that opens and closes a passage between the entrance-side fluid passage and the exit-side fluid passages by touching and separating from the valve seat, and is energized in a valve opening direction by a fluid force of the fluid from the entrance-side fluid passage; anda spring that energizes the valve member in a valve closing direction; wherein,the check valve opens when the energization force in the valve opening direction by the fluid force exceeds the energization force in the valve closing direction by the spring; wherein,the valve member has a piston part that reciprocates, and a valve part that is disposed in the valve seat side and touches and separates to the valve seat;the case member has a piston accommodation cylinder part that accommodates the piston part reciprocatably;the piston part has a valve part accommodating recess that accommodates a part of the valve part;the valve part is disposed in the valve part accommodating recess movably relative to the piston part, and is ...

Lubricating device having a bypass valve

A lubrication device including a bypass valve with an inlet connected to a feed circuit, a first outlet to be connected to elements to be lubricated, and a second outlet connected to a bypass circuit. The valve includes a valve member slidable between first and second positions, and separating a cavity into first and second chambers. The first chamber is connected to the inlet. In the first position, a fluid flow passage from the first chamber to the second chamber is open, and from the first chamber to the first outlet is closed. In the second position, a fluid flow passage from the first chamber to the first outlet is open, and from the first chamber to the second outlet is closed. At least in the second position, the valve member separates the chambers in substantially leaktight manner, while the second chamber remains in fluid flow communication with the second outlet.

VALVE ASSEMBLY FOR COMPRESSED AIR CARTRIDGE

A valve assembly in accordance with the present invention includes a head portion and a body portion. A throughbore extends through both the head portion and the body portion. A normal fluid flow path is formed within the valve assembly to provide for the controlled exit of a fluid. The valve assembly also includes an automatic pressure-relieving mechanism. The pressure-relieving mechanism includes a disc designed to burst or rupture at a predetermined pressure and an over-pressure fluid flow path for controlling the egress of over-pressure fluid. 1. A valve assembly for a compressed air cartridge , comprising:a body portion;a head portion integrally formed with said body portion;a throughbore extending axially through said head portion and said body portion;a primary fluid flow path within said valve assembly, said primary fluid flow path being configured to provide for the controlled exit of a fluid from said cartridge;a secondary fluid flow path within said valve assembly; andan over-pressure relief mechanism for controlling a flow of said fluid through said secondary fluid flow path when a pressure within said cartridge exceeds a predetermined level.2. The valve assembly according to claim 1 , wherein:said over-pressure relief mechanism includes a fracturable seal element configured to burst at a predetermined pressure.3. The valve assembly according to claim 2 , wherein:said fracturable seal element is a metal foil.4. The valve assembly according to claim 1 , further comprising:a poppet positioned within said throughbore, said poppet including a stem, a spring and a seal ring;wherein said poppet is biased by said spring to a first position in which said seal ring is pressed against a tapered section of said throughbore to prevent an egress of said fluid from said cartridge through said primary fluid flow path; andwherein said poppet is movable against said spring bias to a second position in which said seal ring is moved out of contact with said tapered section ...

Actuator for operating a valve in a fluid line

The present invention relates to an actuator ( 30 ) for operating a valve in a fluid line comprising: an actuating member ( 15 ) with an actuating element ( 8 ) for transferring a force to the device, wherein the actuating member ( 15 ) is mounted to move between a first and a second position, a spring ( 10 ) for storing energy and for moving the actuating member ( 15 ) from its first to its second position by means of this energy in order to thereby move the actuating element ( 8 ), lock means for locking the actuating member ( 15 ) in its first position, and release means for releasing the actuating member ( 15 ) in order to allow the actuating member ( 15 ) to move from the first to the second position, wherein the release means are pressure operated and adapted to be in contact with the fluid line and wherein the release means release the actuating member ( 15 ) when the pressure in the fluid line exceeds a threshold.

Compact check valve for aircraft galley plumbing system

A check valve for an aircraft galley plumbing system comprises a valve body including an inlet for a potable water supply line, and first and second outlet ports leading to a distribution manifold. In a preferred embodiment, quick disconnects that include reverse flow inhibitors seal the valve's output ports. A vertical channel extends through the valve body for draining water through the valve, which is coupled to a pressure line connection port that exerts pressure from the aircraft's pressure system. A piston reciprocating across the vertical channel and biased by a spring is in fluid communication with the pressure line connection port, such that when a water pressure is introduced from a water pressure line to the pressure line connection port of sufficient to collapse said spring, the piston blocks said channel, and when the water pressure is insufficient to collapse said spring then the piston retracts to open said channel, allowing fluid to pass thereinthrough.

Tunable Valve Assembly

A tunable valve assembly reduces valve-generated vibration. One embodiment comprises a valve body and valve seat having substantially collinear longitudinal axes. A rebound characteristic frequency is associated with rebound of the elastic valve body base plate from forceful contact with the valve seat. A central cavity in the valve body encloses a spring-mass damper optionally immersed in a dilatant liquid and having a damper resonant frequency approximating a pump housing resonance. A lateral support assembly adjustably secured to the valve seat has a support resonant frequency designed in conjunction with the rebound characteristic frequency and the damper resonant frequency. Combined hysteresis heat loss associated with the above three vibration frequencies is reflected in lower closing energy impulse amplitude and damping of associated vibrations. Compliance of the elastic valve body base plate mating with the valve seat increases closing energy impulse duration and narrows the corresponding induced vibration spectrum.

Valve assembly for high-pressure fluid reservoir

A valve assembly is disclosed for controlling fluid flow between two reservoirs. The valve assembly includes a relief valve arranged inside the housing and configured to open a first fluid flow path when the first reservoir is above a first predetermined pressure value.

OIL BYPASS VALVE

A bypass valve which may direct excess oil back into the cam chest where the return side of the oil pump may send the oil back into the oil tank. The bypass valve may fit within the bypass port of the cam plate and connect with a high pressure feed. The bypass valve may include a sleeve with a front opening and a needle valve within the bypass valve. The needle valve may be biased in a closed position, sealing off the front opening. When the high pressure feed exceeds a certain oil pressure, the needle valve may unblock the front opening. 1. An oil bypass valve comprising:a hollow sleeve having a first end forming a front opening and a second end forming a rear opening;a needle valve having a front portion and a rear portion, wherein the needle valve is within the hollow sleeve, wherein the front portion has a larger diameter than the front opening;a spring around the rear portion of the needle valve, biasing the front portion of the needle valve against the front opening; anda cap having at least one opening, wherein the cap is attached to the second end of the oil bypass valve, wherein the cap secures the spring within the hollow sleeve,wherein the oil bypass valve comprises a closed configuration and an opening configuration, wherein the closed configuration comprises a blocked front opening, and the open configuration comprises an unblocked front opening.2. The oil bypass valve of claim 1 , wherein the front portion of the needle valve comprises flutes forming channels in between.3. The oil bypass valve of claim 1 , wherein the needle valve has a smaller length than the hollow sleeve with the cap.4. The oil bypass valve of claim 1 , wherein the oil bypass valve converts from the closed configuration to the open configuration at an oil pressure of around 35 lbs and above.5. The oil bypass valve of claim 1 , further comprising a bypass port of a cam plate claim 1 , wherein the oil bypass valve is within the bypass port of the cam plate.6. The oil bypass valve of ...

PRESSURE-LIMITING VALVE

A pressure-limiting valve is proposed, in particular for a common rail system. The pressure-limiting valve comprises a valve support (), a valve insert () which is connected to the valve support (), a valve piston () which is mounted such that it can slide in the valve insert (), and a closing spring () which acts on the valve piston () with a closing force in the closing direction. By means of the closing force, the valve piston () acts on a valve seat () which produces a hydraulic connection via a valve chamber () between a high-pressure space () and a low-pressure space (), as soon as the hydraulic force which acts on the valve piston () in the opening direction exceeds the closing force of the closing spring (). When the valve seat () is closed, a leakage gap () is formed between the valve chamber () and the low-pressure space (), which leakage gap () makes it possible for the leakage to be discharged out of the valve chamber () into the low-pressure space (). 110121014121316141418403336141650403618504036. A pressure limiting valve , comprising a valve support () , a valve insert () which is connected to the valve support () , a valve piston () which is mounted such that the valve piston can slide in the valve insert () in a guide bore () and a closing spring () which acts on the valve piston () with a closing force in a closing direction , and the valve piston () acts on a valve seat () by means of the closing force , said valve seat producing a hydraulic connection via a valve chamber () between a high-pressure space () and a low-pressure space () , as soon as a hydraulic force which acts on the valve piston () in an opening direction exceeds the closing force of the closing spring () , characterized in that a leakage gap () is formed between the valve chamber () and the low-pressure space () when the valve seat () is closed , which leakage gap () enables leakage to be discharged out of the valve chamber () into the low-pressure space ().250411314. The ...

RELIEF VALVE

A relief valve configured such that a plunger configured to be pushed forward by an elastic member to block communication between an inflow opening and an outflow opening moves rearward by an increase in pressure of the inflow opening against an elastic force of the elastic member to cause the inflow opening and the outflow opening to communicate with each other; and a piston configured to push a rear end of the elastic member forward moves forward by the increase in the pressure of the inflow opening to compress the elastic member, the elastic member includes a first elastic member and a second elastic member arranged in series, and the second elastic member has a smaller elastic constant than the first elastic member. 1. A relief valve configured to adjust relief pressure in such a manner that: a plunger configured to be pushed forward by an elastic unit to block communication between an inflow opening and an outflow opening moves rearward by an increase in pressure of the inflow opening against an elastic force of the elastic unit to cause the inflow opening and the outflow opening to communicate with each other; and a piston configured to push a rear end of the elastic unit forward moves forward by the increase in the pressure of the inflow opening to compress the elastic unit , wherein:the elastic unit includes a first elastic member and a second elastic member arranged in series; andthe second elastic member has a smaller elastic constant than the first elastic member.2. The relief valve according to claim 1 , wherein:a maximum relief pressure is mainly set by the first elastic member; andthe relief pressure before the piston moves forward is mainly set by the second elastic member.3. The relief valve according to claim 1 , wherein a stopper configured to stop the rearward movement of the plunger at a predetermined most rearward position is provided at a case in which the plunger is housed.4. The relief valve according to claim 1 , comprising a cup-shaped ...

Slam shut safety device having disc anti-rotation

A slam-shut safety device includes a valve body and defining a flow path, a valve disc mounted on a valve disc support is movable between an open first position spaced away from the valve seat and a closed second position seated against the valve seat. A reset pin is operatively coupled to the valve disc support and is shiftable between an untripped position placing the valve disc in the open position and a tripped position placing the valve disc in the closed position. An anti-rotation assembly is carried by cooperating portions of the valve disc and the valve disc support, with the anti-rotation assembly comprising at least one protrusion and at least one receiving area sized to receive the protrusion, the anti-rotation assembly arranged to stop rotation of the valve disc relative to the valve disc support.

Water tank of water-cooled heat dissipation system

A water tank includes a box, an air valve body, a valve core, a cap, and an elastic element. The box defines an accommodating space and a vent communicating with the accommodating space. The air valve body is extended out from the box and adjacent to the vent. The valve core is mounted to the valve body to airproof the vent, and comprises a first end inserted into the accommodating space through the vent and a second end opposite to the first end. The elastic element is arranged between the cap and the valve core. The valve core will open the vent to deform the elastic member and allow heated air in the accommodating space to leak out of the accommodating space through the vent, in response to an air pressure in the box is greater a reference air pressure.

REFRIGERATION SYSTEM AND BALL VALVE THEREOF

A ball valve includes a valve body, the valve body has a valve cavity, a first connecting port and a second connecting port; a valve rod and a valve ball are provided inside the valve cavity, the valve ball is provided with a valve ball passage, the valve rod is configured to drive the valve ball to rotate to allow or disconnect a communication between the first connecting port and the second connecting port via the valve ball passage; wherein, a one-way valve having a preset opening pressure is provided between the valve ball passage and the first connecting port, and in a case that the valve ball disconnects the communication between the first connecting port and the second connecting port, the one-way valve is configured to allow a one-way communication from the valve ball passage to the first connecting port. 1. A ball valve , comprising a valve body , the valve body having a valve cavity , a first connecting port and a second connecting port; a valve rod and a valve ball being provided inside the valve cavity , the valve ball being provided with a valve ball passage , the valve rod being configured to drive the valve ball to rotate to allow or disconnect a communication between the first connecting port and the second connecting port via the valve ball passage; wherein ,a one-way valve having a preset opening pressure is provided between the valve ball passage and the first connecting port, and in a case that the valve ball disconnects the communication between the first connecting port and the second connecting port, the one-way valve is configured to allow a one-way communication from the valve ball passage to the first connecting port.2. The ball valve according to claim 1 , wherein the one-way valve is provided on a spherical wall of the valve ball.3. The ball valve according to claim 2 , wherein the spherical wall of the valve ball is provided with a mounting hole for mounting the one-way valve claim 2 , an inner side of the mounting hole is provided with ...

CONSTANT PRESSURE VALVE

A constant pressure valve includes a lock rod, a valve sleeve, a sliding shaft, a biasing unit, and a solenoid unit. The lock rod is formed with a first through hole. The valve sleeve is inserted fixedly into the lock rod, and includes an outer sleeve surface having a shrunk surface portion cooperating with the lock rod to define an annular space in fluid communication with the first through hole. The sliding shaft is movable in the valve sleeve to contact the lock rod, and includes a large-diameter section and a small-diameter section. The constant pressure valve is adapted to maintain a hydraulic device at a preset pressure. The less a difference between the diameters of the large-diameter section and the small-diameter section is, the more the preset pressure can be. 1. A constant pressure valve adapted for maintain a hydraulic device at a preset pressure , said constant pressure valve comprising:a lock rod including an inner hole centered at an axis, an inner rod surface defining said inner hole, an outer rod surface disposed around said axis, and a first through hole extending through said inner and outer rod surfaces;a valve sleeve fixed in said inner hole in said lock rod and extending along said axis, said valve sleeve including an axial hole centered at said axis, an inner sleeve surface defining said axial hole, an outer sleeve surface disposed around said axis and having a shrunk surface portion that cooperates with said inner rod surface of said lock rod to define an annular space therebetween, a second through hole extending through said inner and outer sleeve surfaces and disposed outwardly of said lock rod, and third and fourth through holes extending through said shrunk surface portion of said outer sleeve surface and said inner sleeve surface, said annular space being in fluid communication with said first through hole in said lock rod;a sliding shaft disposed movably within said axial hole in said valve sleeve and movable along said axis to contact ...

ASPIRATOR AIR VENT VALVE

An aspirator air vent valve may include an air vent valve body coupled with an aspirator body and a pipe fitting. The air vent valve body may include an air vent valve air channel defined by an inner wall of the air vent valve body and disposed between the aspirator body and the pipe fitting. The aspirator air vent valve may further include a vent passage defined by a first vent wall and a second vent wall and disposed between an outer wall and the inner wall of the air vent valve body, wherein the vent passage is in fluid communication with the air vent valve air channel. The aspirator air vent valve may further include a plunger coupled with the air vent valve body. 1. A method of operating an aspirator , the method comprising:exerting a first force on a plunger of an aspirator air vent valve of the aspirator to direct the plunger towards a proximal inner wall of the aspirator air vent valve; anddirecting a fluid from a compressed fluid source through the aspirator into an inflatable evacuation device.2. The method of claim 1 , further comprising directing an ambient gas through an aspirator body into the inflatable evacuation device.3. The method of claim 2 , further comprising directing at least one of the fluid or the ambient gas from the inflatable evacuation device through a vent passage of the aspirator air vent valve.4. The method of claim 1 , further comprising engaging the plunger with the proximal inner wall of the aspirator air vent valve.5. The method of claim 1 , further comprising exerting a second force on the plunger to direct the plunger towards a proximal side of a pipe fitting. This application is a divisional of, and claims priority to and the benefit of, U.S. application Ser. No. 16/165,807, filed Oct. 19, 2018 and entitled “ASPIRATOR AIR VENT VALVE,” which is incorporated by reference herein in its entirety for all purposes.The present disclosure is directed to evacuation systems for use in aircraft and, more particularly, to aspirators for ...

CONCEALED EMBEDDED COMPONENT

The present invention is provided with a concealed embedded component, which comprises a lower main body with a cool water inlet passage, a hot water inlet passage, a mixing water passage and at least an outlet passage,; an embedded box, comprising a box body and a fixing frame covering the box body, a water testing element with the bottom surface disposed with a first passage and a second passage; the lower main body is disposed in the box body, the water testing element is disposed in the box body, the water testing element covers the lower main body to make the outlet passage, the mixing water passage connected to the cool water inlet passage or the hot water inlet passage. The lower main body is disposed in the box body to be separated from the concrete, it is convenient to disassemble for maintenance. 1. A concealed embedded component , wherein comprising:a lower main body with a cool water inlet passage, a hot water inlet passage, a mixing water passage and at least an outlet passage, the cool water inlet passage, the hot water inlet passage, the mixing water passage and the outlet passage are respectively disposed with an inlet and an outlet;an embedded box, comprising a box body and a fixing frame covering the box body, the side wall of the box body is disposed with a cool water hole, a hot water hole and at least an outlet hole;a water testing element with the bottom surface disposed with a first passage and a second passage;the lower main body is disposed in the box body, the inlet of the cool water inlet passage is aligned with the cool water hole, the inlet of the hot water inlet passage is aligned with the hot water hole, the outlet of the outlet passage is aligned with the outlet hole;the water testing element is disposed in the box body, the water testing element covers the lower main body to make the outlet passage, the mixing water passage connected to the cool water inlet passage or the hot water inlet passage.2. The concealed embedded component ...

AUTOMATIC DRAINING BACK FLOW PREVENTION DEVICE

A double check valve is provided that includes an in-line inlet check valve and an outlet check valve that cooperate to prevent back flow of fluid through the valve. The check valve also includes at least one vent that allows for fluid trapped within the check valve to drain, thereby preventing freezing of the check valve and hydrant to which it is interconnected. The check valve provided omits many superfluous components and thus is smaller and easier to install than check valves of the prior art. 1. A back flow prevention device , comprising:a valve body with an outlet volume; an outlet check spring positioned within said outlet volume;', 'an outlet check body partially positioned within said outlet check spring;', 'an outlet check seal fixedly interconnected to said outlet check body;, 'an outlet check valve positioned within said outlet volume, said outlet check valve comprisingwherein said valve body further comprises an inlet volume, wherein said inlet volume and said outlet volume are separated by a wall; andan inlet check body positioned within said inlet volume, wherein said inlet check body is slidingly interconnected to said outlet check body.2. The device of claim 1 , wherein said outlet volume is generally defined by an inner surface of said valve body claim 1 , a seat that extends from said inner surface of said valve body claim 1 , and a stop located at an end of said valve body.3. The device of claim 1 , wherein said outlet check body is interconnected to a hub of a plunger.4. The device of claim 1 , wherein said inlet check body includes a hooked surface that is received within a hollow portion of said outlet check body to operatively interconnect said inlet check body to said outlet check body.5. The device of claim 1 , further comprising a drain spring claim 1 , wherein said outlet check body is partially positioned within said drain spring.6. The device of claim 5 , wherein said outlet check spring contacts a portion of said outlet check body and ...

SPRING RETURN DEVICE

A spring return device comprising a rotatable drive coupling configured for releasably engaging a rotatable drive part on a first side of the device and configured for releasably engaging a rotatable drive part on an opposite second side of the device; a spring engaged with the drive coupling; and a retainer that retains the spring; wherein: rotation of the drive coupling in a first direction relative to the retainer causes mechanical energy to be stored in the spring; and the spring return device comprises an integral locking mechanism that is actuatable between a first state in which rotation of the drive coupling relative to the retainer is allowed and a second state in which rotation of the drive coupling relative to the retainer is prevented. 1. A spring return device comprising:a rotatable drive coupling configured for releasably engaging a rotatable drive part on a first side of the device and configured for releasably engaging a rotatable drive part on an opposite second side of the device;a spring engaged with the drive coupling; anda retainer that retains the spring;wherein:rotation of the drive coupling in a first direction relative to the retainer causes mechanical energy to be stored in the spring; andthe spring return device comprises an integral locking mechanism that is actuatable between a first state in which rotation of the drive coupling relative to the retainer is allowed and a second state in which rotation of the drive coupling relative to the retainer is prevented.2. The spring return device according to claim 1 , wherein the locking mechanism comprises:a locking member that rotates with the drive coupling; anda locking element that is releasably engageable with the locking member to prevent rotation of the locking member.3. The spring return device according to claim 2 , wherein the locking member comprises a locking plate.4. The spring return device according to claim 2 , wherein:the locking member has an opening; andthe locking element is ...

Device Reducing Drag Loss in an Automatic Transmission

A drag torque reduction device for an automatic transmission includes a hydraulic controller with a radiator. In one embodiment, the drag torque reduction device also includes a parallel connection of a pressure relief valve, a constant aperture and a temperature-dependent, switchable aperture positioned upstream of the radiator. In another embodiment, the drag torque reduction device includes an overflow cooling oil diversion with a temperature-dependent, switchable aperture and a pressure relief valve that is positioned upstream of the radiator. 17-. (canceled)8. A drag torque reduction device for an automatic transmission , comprising:a plurality of multi-disk shift elements;a hydrodynamic torque converter;a converter clutch; anda hydraulic controller with a radiator, the hydraulic controller operable to control the plurality of multi-disk shift elements, the hydrodynamic torque converter and the converter clutch, the hydraulic controller comprising a parallel connection of a pressure relief valve, a constant aperture and a temperature-dependent, switchable aperture that is positioned upstream of the radiator relative to a flow of fluid to the radiator, the pressure relief valve configured to open against a spring force above a pressure threshold, the constant aperture configured to permit a minimum flow through the parallel connection to the radiator, the temperature-dependent, switchable aperture configured to open above a temperature threshold, the parallel connection providing a minimum lubrication and cooling at low temperatures and low system pressures by closing the temperature-dependent, switchable aperture at temperatures below the temperature threshold and closing, the pressure relief valve at pressures below the pressure threshold.9. The drag torque reduction device of claim 8 , wherein the temperature-dependent claim 8 , switchable aperture and the pressure-limiting valve are configured such that a volume flow to the radiator corresponds to a normal ...

ISOLATION VALVE WITH A DEAD CHAMBER

An isolation valve includes a dead chamber, including a body with a fluid-passing conduit, a device for obturating the fluid passage in the conduit, which may be actuated between a fluid-passing position and a position for obturating the fluid passage in the conduit. In its obturation position, the obturation device forms a dead chamber. A wall of the obturation device comprises a through-hole, in which is positioned a device for decompression of the dead chamber. A hydrocarbon transport facility includes at least two pipes connected through such an isolation valve with a dead chamber. 1. An isolation valve with a dead chamber:a body with a fluid-passing conduit, anda device for obturating the fluid passage in the conduit, which may be actuated between a fluid-passing position and a position for obturating the fluid passage in the conduit, an obturation position in which the obturation device forms a dead chamber, a wall of the obturation device comprising a through-hole, in which is positioned a device for decompression of the dead chamber in which the obturation device includes a tapered rotating plug.2. The isolation valve with a dead chamber according to claim 1 , wherein the decompression device is formed by a calibrated valve.3. The isolation valve with a dead chamber according to claim 2 , wherein the calibrated valve is screwed claim 2 , pinned or forcibly inserted into the wall of the obturation device.4. The isolation valve with a dead chamber according to claim 1 , wherein the through-hole is made between the dead chamber and the fluid-passing conduit.5. The isolation valve with a dead chamber according to claim 4 , wherein the through-hole is made in the wall of the obturation device intended to be positioned towards the upstream side of the isolation valve claim 4 , in a position for obturating the fluid passage in the conduit.6. The isolation valve with a dead chamber according to claim 1 , wherein the rotating body also comprises two sliders ...

PRESSURE RELIEF MODULE

A paint circulating system and a pressure relief module utilised therein are described. The paint circulating system comprises a pressurised paint supply pipeline a tank return pipeline and a pressure relief module The pressure relief module comprises: a first flow chamber through which pressurised paint is provided to said supply pipeline a second flow chamber through which paint returns to said tank return pipeline an orifice interconnecting said first and second flow chambers; and a valve member biased towards the orifice so as to block said orifice. The valve member is moveable in response to a pressure in said first flow chamber exceeding a predetermined relief pressure so as to displace said valve member to open said orifice This allows paint to flow from said first flow chamber into said second flow chamber preventing failure occurring in the paint circulating system 111-. (canceled)12. A pressure relief module for a paint circulating system , comprising: a supply flow inlet port configured to receive a pressurized supply of paint;', 'a supply flow outlet port configured to supply the pressurized paint;', 'a return flow inlet port configured to receive an unpressurized return paint flow;', 'a return flow outlet port;', 'a first flow chamber connecting the supply flow inlet port to the supply flow outlet port;', 'a second flow chamber connecting the return flow inlet port to the return flow outlet port,', 'wherein the first and second flow chambers share a common separating wall, and the common separating wall has an orifice that interconnects the first flow chamber to the second flow chamber; and, 'a single piece housing, comprisinga valve member biased against the orifice, wherein when a pressure of the pressurized supply of paint exceeds a threshold value, the valve member moves away from the orifice to divert at least a portion of the pressurized supply of paint from the first flow chamber into the second flow chamber.13. The pressure relief module of ...

DIRECT ACTION SOLENOID VALVE

A direct action solenoid valve includes: a valve body, on the valve body is disposed a water inlet port and two water outlet ports, the two water outlet ports are a first water outlet port and a second water outlet port respectively; a first water passage channel, formed between the water inlet port and the first water outlet port, and a second water passage channel, formed between the water inlet port and the second water outlet port; a chamber, formed between the first water passage channel and the second water passage channel; a control piece, disposed in the chamber, to control the first water outlet port to open; a solenoid valve head, disposed in the valve body; and a hydroelectric generator, disposed in the valve body to supply power to the solenoid valve head. 1. A direct action solenoid valve , comprising a valve body , on the valve body is disposed a water inlet port and two water outlet ports , the two water outlet ports are a first water outlet port and a second water outlet port respectively; a first water passage channel is formed between the water inlet port and the first water output port , a second water passage channel is formed between the water inlet port and the second water output; a chamber is formed between the first water passage channel and the second water passage channel; a control piece is disposed in the chamber , to control the first water outlet port to open , the second water outlet port to open , or both the first water outlet port and the second water outlet port to close at the same time; a solenoid valve head is disposed in the valve body , to control open or close of the first water passage channel; and a hydroelectric generator is disposed in the valve body to supply power to the solenoid valve head.2. The direct action solenoid valve as claimed in claim 1 , wherein the control piece includes an axial compression piece and a switching bolt claim 1 , a spring is disposed between the axial compression piece and the switching bolt ...

Electro-mechanical pressure relief valve

Examples of a pressure relief valve are provided. An example pressure relief valve comprises a main seal ring, a poppet configured to form a seal with the main seal ring, a dynamic wear sleeve configured to cover the main seal ring when the pressure relief valve is at least partially open and comprising a reduced cross-sectional area of the inner diameter at one end of the dynamic wear sleeve, an electro-mechanical clutch assembly, and wherein the pressure relief valve is actuated by the electro-mechanical clutch assembly.

CIRCUIT SHUT-OFF SOLENOID VALVE FOR A SOLENOID VALVE SYSTEM AND SOLENOID VALVE SYSTEM COMPRISING SAID SHUT-OFF SOLENOID VALVE

A circuit shut-off solenoid valve for a solenoid valve system can be directly integrated in a solenoid valve system without use of an auxiliary base module and can be interchangeable with any solenoid valve in the system. The circuit shut-off solenoid valve allows for modification of the flow rate of compressed air into the solenoid valve. 1. Circuit shut-off solenoid valve for a solenoid valve system , wherein said solenoid valve system comprises a plurality of solenoid valves and at least a base operatively connected to said plurality of solenoid valves , each of said solenoid valves is of the spool type and comprises a body, in which at least one feeding mouth, at least one first discharge mouth and at least one first outlet mouth are obtained, at least one first spool-type slider, which is housed in a movable manner with an alternate rectilinear motion in a seat obtained in said body and is configured to selectively fluidly connect said at least one feeding mouth, said at least one first discharge mouth and said at least one first outlet mouth, and at least one first actuation device of said first spool-type slider comprising at least one first electropilot,', 'said at least one base comprises a plurality of housings, each of which is adapted to receive said respective solenoid valve, wherein each of said housings comprises at least one feeding duct adapted to be fluidly connected with said feeding mouth of said respective solenoid valve, at least one first discharge duct adapted to be fluidly connected with said first discharge mouth of said respective solenoid valve and at least one first outlet duct placeable in fluid communication with said first outlet mouth of said respective solenoid valve,', 'the feeding ducts of said housings being joined to or defined by a segment of a main feeding duct obtained in said base,', 'the first discharge ducts of said housings being joined to or defined by a segment of a first main discharge duct obtained in said base, and', ...

TWO-WAY TWO POSITION IN-LINE VALVE

A two-way, two position, in-line valve, for controlling fluid flow through a line in both directions. The valve includes a tubular conduit defining a bore there-through to communicate fluid flow from the line and through the bore of the tubular conduit, a piston sized to slide along the bore, a stop in the bore having an annular seal supported on the stop in opposed facing relation to a first face of the piston, a resilient spring mounted in the bore so as to bear against a second face of the piston, opposite the first face, and to thereby resiliently urge the first face of the piston against the seal, and a selectively retracting latching mechanism adapted to index the piston between open and closed positions as in-line modulated pressure is applied to the piston. 1. A two-way , two position valve for mounting in-line , in a pressurized fluid line , comprising:a tubular conduit defining a bore there-through to communicate fluid flow from the line and through the bore of the tubular conduit,a piston sized to slide along the bore,a stop in the bore, having an annular seal supported on the stop in opposed facing relation to a first face of the piston,a resilient spring mounted in the bore so as to bear against a second face of the piston, opposite the first face, and to thereby resiliently urge the first face of the piston against the seal, anda selectively retractable latching mechanism adapted to index the piston between open and closed positions as in-line modulated fluid pressure is applied to the piston.2. The valve of claim 1 , wherein the retracting latching mechanism comprises a cam surface and cam follower cooperating between side walls of the piston and bore claim 1 , thereby causing:(a) a first rotation of the piston relative to the bore caused by a fluid flow pressure in the bore acting on the first face of the piston so as to resiliently bias the piston, against a returning biasing force of the spring, into the open position wherein fluid flow passes ...

Vent Valve Flow Fuse

A vent valve flow fuse includes a valve cap with a valve cap cavity defined by one or more valve cap interior surfaces. The vent valve flow fuse includes a valve body with a valve body cavity defined by one or more valve body interior surfaces. The vent valve flow fuse includes a poppet configured to at least partially fit within the valve cap cavity and the valve body cavity. The vent valve flow fuse includes a spring configured to fit within the valve body cavity and to generate a resistive force against the poppet. The poppet is in a first position when fluid having a first amount of fluid pressure enters the valve cap cavity from a vent valve and engages the poppet. The poppet is in a second position when fluid having a second amount of fluid pressure enters the valve cap cavity and engages the poppet. 1. A vent valve flow fuse , comprising:a valve cap including a valve cap cavity defined by one or more valve cap interior surfaces;a valve body including a valve body cavity defined by one or more valve body interior surfaces;a poppet configured to at least partially fit within the valve cap cavity and at least partially fit within the valve body cavity; anda spring configured to fit within the valve body cavity, the spring further configured to generate a resistive force against the poppet,the poppet being in a first position when fluid having a first amount of fluid pressure enters the valve cap cavity from a vent valve in fluid communication with a fluid tank of an aircraft brewing apparatus and engages the poppet,the poppet being in a second position when fluid having a second amount of fluid pressure enters the valve cap cavity from the vent valve with the fluid tank of the aircraft brewing apparatus and engages the poppet.2. The vent valve flow fuse of claim 1 , the poppet further comprising: an inlet cavity defined by one or more inlet interior surfaces; and', 'one or more inlet holes in fluid communication with the inlet cavity; and, 'an inlet portion, ...

RELIEF VALVE

A relief valve comprises a ball body separated from a seat member when a pressure of a working oil from a supply passage exceeds a set pressure, and a ball-body support member biased by a biasing member and supporting the ball body. The ball-body support member comprises a holding recess portion for holding the ball body and a taper portion formed around the holding recess portion and inclined so as to become deeper toward the holding recess portion. 1. A relief valve adapted to open when a pressure of an working fluid exceeds a set pressure , comprising:a seat member having a supply passage through which the working fluid is supplied;a ball body adapted to close the supply passage in a state seated on the seat member and to be separated from the seat member when the pressure of the working fluid supplied from the supply passage exceeds the set pressure;a ball-body support member adapted to support the ball body between the ball-body support member and the seat member; anda biasing member adapted to bias the ball-body support member toward the seat member with the set pressure, a holding recess portion facing the supply passage and adapted to hold the ball body; and', 'a taper portion formed around the holding recess portion and inclined to become deeper toward the holding recess portion., 'wherein the ball-body support member comprises2. The relief valve according to claim 1 , further comprising:a case member adapted to accommodate the biasing member, the ball-body support member, and the ball body, the case member comprising a discharge passage adapted to discharge the working fluid supplied from the supply passage,wherein the taper portion is formed in a location to cause a center of the ball body is disposed on the taper portion in a state where the ball body is in contact with a side wall of the case member.3. The relief valve according to claim 1 , whereinthe holding recess portion is formed into a conical hole formed in an end surface of the ball-body support ...

Crankcase Ventilation Valve, Crankcase Ventilation Filter and Crankcase

A crankcase ventilation valve comprises a membrane element with a metal support washer and a conical spring, the end face of which acts on the support washer.

SELECTABLE VALVE ASSEMBLY FOR A VEHICLE TRANSMISSION

A hydraulic valve assembly for controlling a clutch in a vehicle transmission. The valve assembly includes a housing with a first port for connection to a source of pressurized hydraulic fluid, a displaceable sealing piston disposed within the housing, a valve spring for displacing the sealing piston, a snap-spring having first and second equilibrium positions, and an overstroke spring. In the first equilibrium position a spring force displaces the sealing piston to uncover the first port to enable fluid flow through the valve, and in the second equilibrium position the valve spring displaces the sealing piston to block the first port to block fluid flow through the valve. Moving from the first equilibrium position to the second equilibrium position includes displacing the overstroke spring. 1. A hydraulic valve assembly for controlling a clutch in a vehicle transmission , comprising:a housing with a first port for connection to a source of pressurized hydraulic fluid;a displaceable sealing piston disposed within the housing;a valve spring for displacing the sealing piston;a snap-spring having first and second equilibrium positions; in the first equilibrium position, a spring force displaces the sealing piston to uncover the first port to enable fluid flow through the valve;', 'in the second equilibrium position, the valve spring displaces the sealing piston to block the first port to block fluid flow through the valve; and,', 'moving from the first equilibrium position to the second equilibrium position comprises displacing the overstroke spring; and,, 'an overstroke spring, whereinan overstroke piston, wherein the overstroke piston is displaceable to displace the overstroke spring.2. The hydraulic valve assembly of wherein the spring force is generated by the snap-spring.3. The hydraulic valve assembly of further comprising a valve release spring claim 1 , wherein the spring force is generated by the valve release spring.4. The hydraulic valve assembly of wherein ...

System And Method For Detecting Safe Operating Conditions And Maintained Integrity In A Pressure Safety Valve

A system for detecting safe operating conditions and maintained integrity in a Pressure Safety Valve (PSV) the valve comprising an inlet, an outlet, a valve disc controlling fluid flow between the inlet and outlet, a stem connected to the valve disc, a spring washer, and a spring in communication with the valve disc and the spring washer, a vibration sensor which detects vibration in the valve disc, an inlet pressure sensor which detects the static pressure in the inlet, a position sensor which detects the position of the valve disc transferred through the stem, a compression load cell sensor which detects the dynamic force applied on the valve spring washer by the spring, an outlet pressure sensor which detects the pressure in the outlet, a separate shock sensor adapted to determine if the PSV has popped and then activate a microcontroller. 17-. (canceled)8. A system for detecting safe operating conditions and maintained integrity in a pressure safety valve , comprising:an inlet and an outlet;a valve disc controlling fluid flow between the inlet and the outlet;a stem connected to the valve disc;a spring washer and a spring in communication with the valve disc and the spring washer;a position sensor for detecting the position of the valve disc via the stem;a vibration sensor for detecting vibration in the valve disc;an inlet pressure sensor for detecting the static pressure in the inlet; anda microcontroller in communication with the position sensor, the vibration sensor, and the inlet pressure sensor.9. A system according to claim 8 , further including a compression load cell sensor for detecting the dynamic force applied on the valve spring washer by the spring.10. A system according to claim 9 , further including an outlet pressure sensor for detecting the pressure in the outlet.11. A system according to claim 8 , further including an outlet pressure sensor for detecting the pressure in the outlet.12. A system according to claim 8 , wherein claim 8 , in response ...

SAFETY DEVICE FOR INSTALLATION IN A GAS-SUPPLY SYSTEM, IN PARTICULAR, AN ACETYLENE-SUPPLY SYSTEM

Relevant specifications in the field of gas supply provide for different safety devices for installation in a gas-supply system, in particular, an acetylene-supply system. To provide such a safety device, which is characterized by a compact structure and a high level of operational reliability, this invention proposes that a valve body () incorporates an over-pressure valve () of a quick-action shut-off device, a control valve () of a pressure-limiting device, and a safety valve (), whereby the safety valve () can be fluidically connected to the over-pressure valve () and the control valve (), and closes either when the over-pressure valve () opens due to an inlet pressure that is above the inlet-pressure limit value or when the control valve () opens due to an outlet pressure that is above an outlet-pressure limit value. 1. A safety device for installation in a gas-supply system , where a main pressure regulator regulates an inlet pressure of a gas fed thereto to an outlet pressure , said safety device comprising:a valve body to which the gas is fed at the inlet pressure and from which the gas is fed at the outlet pressurean over-pressure valve of a quick-action shut-off device, said over-pressure valve being configured to open responsive to the inlet pressure being above a predetermined inlet-pressure limit value,a control valve of a pressure-limiting device, said control valve being configured to open responsive to the outlet pressure being above a predetermined outlet-pressure limit value, anda safety valve fluidically connected to the over-pressure valve and the control valve, andwherein the safety valve closes either when the over-pressure valve opens due to the inlet pressure being at an inlet pressure level that is above the inlet-pressure limit value, or when the control valve opens due to the outlet pressure being at an outlet pressure level that is above an outlet-pressure limit value.2. The safety device as claimed in claim 1 , wherein the safety valve ...

CHECK VALVE ELEMENT AND CHECK VALVE USING THE SAME

Provided is a check valve element enabling efficient supply of fluid while suppressing the occurrence of chattering. The check valve element is provided to be displaceable upstream and downstream in a downstream flow path extending downstream from a valve seat having an opening for introducing a fluid and is pressed against the valve seat by a pre-closing urging force applied thereto toward an upstream side. The check valve element has an arresting portion provided on an outer peripheral surface thereof, a sliding resistance imparting member support portion supporting a sliding resistance imparting member such that the sliding resistance imparting member slides along the wall of the downstream flow path when the check valve element is displaced upstream and downstream, and an urging member support portion supporting an urging member urged upstream so that the urging member urges the sliding resistance imparting member upstream, thereby causing the sliding resistance imparting member to increase in outer diameter while being arrested by the arresting portion.

UTILIZING CLEAN GAS TO RELIABLY OPERATE MAIN AND PILOT RELIEF VALVE

A relief valve assembly including a main relief valve and a pilot relief valve. The main relief valve is positioned adjacent a valve seat of a pressure vessel containing a sour gas. The main relief valve includes a main valve diaphragm selectively sealable against the valve seat of the pressure vessel and enclosing a valve dome containing an inert clean gas and includes a hollow valve tube in pressure communication with the valve dome. The pilot relief valve is in pressure communication with the pressure vessel and the valve dome, and includes a pilot seat selectively sealable against the hollow valve tube. The pilot relief valve includes a biasing mechanism in communication with the pilot seat to urge the pilot seat toward sealed engagement with the hollow valve tube and a sense diaphragm attached to the pilot seat and enclosing a sense cavity in pressure communication with the valve dome. 1. A relief valve assembly comprising: a main valve diaphragm selectively sealable against the valve seat of the pressure vessel, the valve diaphragm enclosing a valve dome containing an inert clean gas; and', 'a hollow valve tube in pressure communication with the valve dome; and, 'a main relief valve positioned adjacent a valve seat of a pressure vessel containing a sour gas, the main relief valve comprising a biasing mechanism in communication with the pilot seat to urge the pilot seat toward sealed engagement with the hollow valve tube; and', 'a sense diaphragm attached to the pilot seat and enclosing a sense cavity in pressure communication with the valve dome and the pressure vessel so that when a pressure in the pressure vessel exceeds a predetermined level, pressure within the sense cavity urges the sense diaphragm and the pilot seat away from the hollow valve tube, which in turn allows compression of the valve diaphragm so that it separates from the valve seat, thereby allowing sour gas to escape from the pressure vessel., 'a pilot relief valve in pressure communication ...

CABLE ACTUATED REMOTE EMERGENCY SHUT-OFF SYSTEM

A system includes a valve, handle, guide, arm, channel, and projection. The handle is proximate the valve and is configured to open and close the valve. The handle is in a first position when the valve is open and in a second position when the valve is closed. The guide is connected to the handle. The arm is connected to the guide. The channel is located on one of the guide or the arm, the channel having opposed first and second ends. The projection is located on the other of the guide or the arm, the projection configured to be received in the channel. Moving the projection past a location of the first end of the channel pulls the guide and the handle, thereby moving the handle from the first position to the second position. The projection can be moved toward the second end while the handle remains in the second position. 1. A system including:a valve; wherein the handle is in a first handle position when the valve is open; and', 'wherein the handle is in a second handle position when the valve is closed;, 'a handle located proximate the valve and configured to open and close the valve;'}a guide connected to the handle;an arm connected to the guide;a channel located on one of the guide or the arm, the channel having opposed first and second ends; anda projection located on the other of the guide or the arm, the projection configured to be received in the channel;wherein moving the projection past a location of the first end of the channel pulls the guide and the handle, thereby moving the handle from the first handle position to the second handle position; andwherein the projection can be moved toward the second end of the channel while the handle remains in the second position.2. The system of claim 1 , further including a cable having opposed first and second ends claim 1 , wherein the first end of the cable is connected to the arm.3. The system of claim 2 , further including a lever connected to the second end of the cable.4. The system of wherein the arm ...

Positive Retraction Bypass Valve System and Method

The present disclosure provides a system and associated method for a positive retraction bypass valve. The positive retraction bypass valve can include a dump cartridge in a valve body with a valve stem biased to an open position to allow flow through a drain path. An adjuster can advance toward the valve stem and oppose the bias to at least partially close the valve. Upon retraction of the adjuster from the valve body, a retraction rod assembly with a retraction rod coupled to the adjuster and the valve stem can pull the valve stem toward the adjuster if the bias or fluid pressure on the valve stem does not move the valve stem toward the adjuster. 1. A positive retraction bypass valve , comprising:a valve body having a proximal end and a distal end and having a flow path, a drain path, and a valve body cavity formed in the valve body and fluidicly coupled to the flow path and the drain path;a dump cartridge having a slidable valve stem, the dump cartridge being disposed in the valve body cavity;a bias member configured to bias the slidable valve stem in the dump cartridge to allow flow through the drain path;an adjuster adjustably coupled to the valve body and configured to push the valve stem toward a closed position to progressively restrict flow through the drain path; anda retraction rod releasably coupled to the adjuster on a proximal portion of the rod, the valve stem on a distal portion of the rod, or a combination thereof, the rod being configured to pull the valve stem toward the adjuster if the valve stem does not follow the position of the adjuster when the adjuster is moved in the direction away from the valve stem.2. The valve of claim 1 , wherein:the dump cartridge is slidably disposed in the valve body cavity from the distal end, and the valve stem is biased toward the proximal end;the adjuster is coupled to the valve body on the proximal end to push the valve stem toward the distal end; andthe retraction rod is coupled between the adjuster and the ...

SAFETY VALVE FOR WATCHES

The present invention relates to a safety valve including: 2. The valve according to claim 1 , wherein the first element is a polymer material placed inside the hollow head and wherein the second element is the shaft.3. The valve according to claim 2 , wherein the polymer material fills a first space comprised between one end of the tube claim 2 , the head and the shaft.4. The valve according to claim 2 , wherein the polymer material also extends into a second space comprised between the tube and the shaft.5. The valve according to claim 3 , wherein the polymer material includes a first orifice serving as passage claim 3 , the first orifice passing through the first space between the head and the shaft.6. The valve according to claim 4 , wherein the polymer material includes a second orifice serving as passage claim 4 , the second orifice passing through the second space between the tube and the shaft.7. The valve according to claim 2 , wherein claim 2 , on one portion of its circumference claim 2 , the shaft includes a recess serving as passage.8. The valve according to claim 7 , wherein the recess extends on the shaft over a height at least equal to the distance separating the first orifice and the second orifice.9. The valve according to claim 6 , wherein a path is arranged between the polymer material placed in the second space and the tube at the second orifice.10. The valve according to claim 2 , wherein the polymer material is chosen from among polyurethanes claim 2 , elastomers claim 2 , thermoplastics claim 2 , thermosets claim 2 , reinforced or non-reinforced composites.11. The valve according to claim 1 , wherein the first element is a disc placed around the shaft and integral with the tube and wherein the second element is another disc integral with the shaft and superposed on said disc.12. The valve according to claim 11 , wherein a porous membrane is placed between the two discs to ensure that the valve is watertight.13. The valve according to claim 1 ...

Autonomous Flow Controller Device

A flow control valve sub including a tubular valve sub housing having a sub central passage and a valve cavity formed in a sidewall of the sub housing. At least one piston aperture and at least one constant area pilot aperture communicate between the valve cavity and the sub central passage, while a piston is positioned in the piston aperture with the piston moving to at least partially cover and uncover the flow port in order to create a variable flow path between the valve cavity and the sub central passage. A beam spring is supported at a location within the cavity on each side of the piston and biases the piston toward a less flow restrictive position relative to the flow port and a valve cover is positioned to substantially close the valve cavity. 129-. (canceled)30. A valve sub comprising:(a) a tubular member including a sidewall enclosing a central passage and a valve compartment formed in the sidewall, (i) a valve body configured for insertion in the tubular member sidewall to create a flow path between the central passage of the tubular member and an interior space of the compartment;', '(b) a flow port formed in the valve body;', '(ii) a valve piston positioned in the valve body and configured to cover a variable area of the flow port, wherein the flow port has an approximate T-shape providing a nonlinearly increasing flow area as the valve piston uncovers the flow port;', '(iii) a rod spring attached to the valve piston, the rod spring being supported at a location within the compartment on each side of the valve piston and biasing the valve piston to cover a smaller area of the flow port, wherein (1) the rod spring has a spring constant of between 300 lbs/in and 700 lbs/in, and (2) the rod spring extends through an aperture in the valve piston;', '(iv) a constant area pilot aperture creating a second flow path to the central passage of the tubular member, wherein (1) the pilot aperture positioned within the compartment, and (2) the pilot aperture is ...

Automatic back-pressure valve for use in supercritical fluid chromatographic system

An automatic back-pressure valve is for use in a supercritical fluid chromatographic system, consisting of: a spring support ( 1 ); an ejector rod spring ( 2 ); an ejector rod ( 3 ); a piston rod ( 4 ); a guide band ( 5 ); a cylinder body ( 6 ); an O-ring seal ring A ( 7 ); an O-ring seal ring B ( 8 ); a piston rod spring ( 9 ); a cylinder cover ( 10 ); a guide sleeve ( 11 ); a conical ceramic element ( 12 ); a seal ring ( 13 ); a sealing base ( 14 ); a valve body ( 15 ); a screw ( 16 ); and a positioning sleeve ( 17 ).

VALVE ASSEMBLY

A valve assembly includes a valve housing defining a flow path to allow fluid flow between a first end configured to be connected to a fluid source and a second end and that defines a valve seat in the flow path, a valve member located in the valve seat moveable within the housing between a closed position and an open position, and biasing means within the valve housing and connected to the valve member to bias the valve member in the closed position. The valve member has formed therein across at least part of the radial dimension of the flow path, a frangible part configured to rupture if, while the valve member is in the closed position, a pressure and/or temperature acting on the frangible part exceeds a rupture threshold, thus allowing flow along the flow path. 1. A valve assembly comprising:a valve housing defining a flow path to allow fluid flow between a first end configured to be connected to a fluid source and a second end configured to be connected to a pressurised fluid container, the valve housing defining a valve seat in the flow path;a valve member moveable within the housing between a closed position wherein the valve member is located in the valve seat so as to prevent fluid flow between the first and second ends of the valve housing, and an open position wherein the valve is spaced from the valve seat so as to allow fluid flow along the flow path; andbiasing means within the valve housing and connected to the valve member to bias the valve member in the closed position;wherein the valve member has formed therein across at least part of the radial dimension of the flow path, a frangible part configured to rupture if, while the valve member is in the closed position, a pressure or temperature acting on the frangible part exceeds a rupture threshold, thus allowing flow along the flow path.2. The valve assembly of claim 1 , wherein the valve member is a ball valve.3. The valve assembly of claim 1 , wherein the biasing means is a spring.4. The valve ...

SUCTION DAMPENING DEVICE WITH INTERNAL DAMPENING FOR VEHICLE AIR CONDITIONING COMPRESSOR

A suction dampening device comprises a housing with an inlet port formed therein and a valve case disposed adjacent the inlet port. The valve case includes at least one opening formed therein. A valve core is slidably disposed within the valve case. A lever having an axis of rotation fixed to a portion of the valve case includes a first lever arm disposed to a first side of the axis of rotation and a second lever arm disposed to a second side of the axis of rotation. The second lever arm abuts an outer circumferential surface of the valve core. A spring element is disposed between the first lever arm and the valve core. The spring element is configured to apply a force to the first lever arm to cause the second lever arm to apply a lateral force to the valve core to dampen vibrations of the spring element. 1. A suction dampening device for a compressor comprising:a valve case including a circumferentially extending sidewall having an inner surface;a valve core having an outer surface slidably engaging the inner surface of the sidewall of the valve case;a lever including a first lever arm and a second lever arm formed on opposing sides of an axis of rotation thereof, at least a portion of the second lever arm frictionally engaging the outer surface of the valve core; anda spring element disposed between the first lever arm and the valve core, the spring element configured to urge the first lever arm in an axial direction of the valve case to cause the at least a portion of the second lever arm to engage the outer surface of the valve core.2. The suction dampening device of claim 1 , wherein the second lever arm is disposed within an opening formed in the sidewall of the valve case.3. The suction dampening device of claim 1 , wherein the second lever arm includes a radially extending portion and an axially extending portion claim 1 , the radially extending portion disposed between the axis of rotation of the lever and the axially extending portion.4. The suction ...

Pneumatic Fender and Mouth Piece Metal for Pneumatic Fender

A pneumatic fender and a mouth piece metal with an open/close valve is biased by a resilient member toward a closing direction of a through hole formed on a dividing wall constituting a receiving chamber. A safety valve is isolated from a cavity of a fender bladder by a receiving chamber, thus allowing the safety valve to be able to be detached and attached while the pneumatic fender is in use. A confirmation test of a valve opening pressure of the safety valve is performed by opening a receiving chamber open/close valve and raising an internal pressure of a cavity of the receiving chamber to a pressure threshold (Pm) via a receiving chamber communication passage. Upon an internal pressure (P) of the cavity being less than the pressure threshold (Pm) and greater than a standard pressure (Pc), the open/close valve opens the through hole, thus allowing the safety valve to function. 1. A pneumatic fender comprising:a fender bladder including a cylindrical portion and bowl-like hemispherical portions connected to each end of the cylindrical portion;a mouth piece metal disposed on at least one of the hemispherical portions,the mouth piece metal including:a safety valve that, upon an internal pressure of a cavity of the fender bladder reaching a pressure threshold, opens to connect the cavity of the fender bladder to outside air and reduce the internal pressure, anda communication passage that connects the cavity of the fender bladder and outside air; anda bladder open/close valve that opens and closes the communication passage; whereinthe mouth piece metal further includes:a receiving chamber that isolates the safety valve from the cavity of the fender bladder,a through hole that connects a cavity of the receiving chamber and the cavity of the fender bladder, the through hole being formed on a dividing wall constituting the receiving chamber,an open/close valve that opens and closes the through hole,a resilient member that constantly biases the open/close valve toward a ...

High pressure pump having unitary discharge and relief valve

A valve body is provided with a discharge relief portion. A relief valve outlet is formed in an end face thereof on a central axis of the valve body. Discharge valve inlets are point-symmetrically formed with respect to the central axis. A discharge valve outlet is formed in another end face thereof and relief valve inlets are point-symmetrically formed with respect to the central axis. A discharge valve outlet and the discharge valve inlets communicate with each other. A flow of fuel from a pressurization chamber to a fuel discharge port is restricted by a discharge valve member capable of closing the discharge valve outlet. The relief valve outlet and the relief valve inlets communicate with each other. A flow of fuel from the fuel discharge port to the pressurization chamber is restricted by a relief valve member capable of closing the relief valve outlet.

Damping valve

A damping valve includes a valve seat member having a port and a first valve seat surrounding the port, a main valve body seated on or unseated from the first valve seat, the main valve body having a second valve seat oppositely to the valve seat member, a subsidiary valve body seated on or unseated from the second valve seat, a valve-body intermediate chamber provided between the main valve body and the subsidiary valve body in an inner circumferential side of the second valve seat, a restrictive passage that causes the port and the valve-body intermediate chamber to communicate with each other, the restrictive passage being configured to apply resistance to a flow of fluid passing therethrough, and a subsidiary valve body biasing means configured to bias the subsidiary valve body toward the main valve body.

PRESSURE RELIEF VALVE WITH SINGULAR BODY

A pressure relief valve includes a singular body that encloses a seat and a stationary shim, a poppet, within the singular body, that is forced against a seat by a spring attached to the stationary shim, and a pin inserted into the pressure relief valve body to lock the pressure relief valve into a housing bore. The poppet includes a nose extension that extends into a void enclosed by the seat to provide damping. The seat includes a non-threaded stepped region on its outer surface and the singular body includes a complementary stepped region on its inner surface such that when the seat is fit into the singular body, the stepped region of the seat and the complementary stepped region of the singular body interface with each other to prevent movement of the seat toward the spring. The pin includes a coating to reduce friction and galling. 1. A method for assembling a pressure relief valve , comprising:fitting a seat for receiving a poppet into a singular body;inserting the poppet and a spring into the singular body; andfitting a stationary shim into the singular body for holding an end of the spring stationary with respect to the singular body, wherein the seat is fit into the singular body for receiving the poppet; andfitting a retainer into the singular body to support the stationary shim,wherein the seat includes a non-threaded stepped region on its outer surface and the singular body includes a complementary stepped region on its inner surface such that when the seat is fit into the singular body, the stepped region of the seat and the complementary stepped region of the singular body interface with each other to prevent movement of the seat toward the spring.2. The method of claim 1 , wherein sides of the seat beyond the non-threaded stepped region in a direction toward the spring are in contact with the singular body along a full length of the seat beyond the stepped region.3. The method of claim 1 , wherein the seat is interference fit into the singular body ...

Torsional Spring for a Slam-Shut Safety Device

A cam assembly for use in a slam-shut safety valve includes a cam having an elongated first cam arm, and the cam is pivotable about a rotational axis. The cam assembly also includes a torsional spring having a pair of stationary outer arms and a pair of pivotable inner arms, wherein the pair of stationary inner arms is coupled to a portion of the first cam arm. The pair of inner arms is adapted to act on the first cam arm to bias the cam into a position that allows the cam to be relatched in a valve rearming process. The pair of inner arms is symmetrically disposed about the first cam arm to prevent lateral displacement of the cam. 1. A slam-shut safety valve for a gas distribution system , the slam-shut safety valve comprising:a valve body;a diaphragm disposed at least partially within an interior portion of the valve body, with at least part of the diaphragm being displaceable into the interior portion of the valve body, the diaphragm having a first side being exposed to gas system pressure;a plunger connected to the first side of the diaphragm;a cam rotatably mounted within the interior of the valve body, the cam having a first cam arm and a third cam arm, wherein the first arm is coupled to the plunger;a torsional spring operatively coupled to the first cam arm and at least one surface disposed in the interior portion of the valve body; anda reset pin assembly, the reset pin assembly including an elongated reset rod and a relatch plug fixedly coupled to the reset rod, wherein the torsional spring is adapted to act on the first cam arm to bias the cam into a desired position that allows the third cam arm to engage a shoulder portion of the relatch plug when the reset rod is displaced towards the cam in a valve rearming process, thereby relatching the cam.2. The slam-shut safety valve of claim 1 , wherein the torsional spring has a pair of stationary outer arms and a pair of pivotable inner arms claim 1 , wherein the pair of stationary inner arms is operatively ...

A pressure limiting valve for a cryostat containing a cryogen and a superconducting magnet

An abstract for a quench valve of a cryostat, in particular for use in a magnetic resonance imaging system, is attachable to the quench valve so as to raise the cracking pressure of the quench valve without changing the operability of the quench valve. Such an accessory device is usable to enable the cryostat, containing a cryogen, to be safely transported by air transportation.

FLUID DISPENSING DEVICE WITH SAFETY VALVE

A safety valve is for controlling dispensing of a fluid flow from a conduit. A valve body forms an inlet opening of the fluid, an outlet opening of the fluid, and a main passageway for the fluid which fluidly connects the inlet opening to the outlet opening. At least one fluid relief opening fluidly communicates with the outlet opening through a valve seat. A shutter elastically cooperates with the valve seat to be biased by an elastic device to sealingly close the valve seat, and to open said seat when the pressure of the fluid in the outlet opening exceeds the force applied by said elastic device. 1. A safety valve for controlling dispensing of a fluid flow from a duct , comprising:a valve body forming an inlet opening of the fluid, an outlet opening of the fluid, a main passageway for the fluid which fluidly connects the inlet opening to the outlet opening, at least one fluid relief opening which fluidly communicates with the outlet opening through a valve seat;a shutter elastically cooperating with the valve seat to be biased by an elastic device to sealingly close the valve seat, and to open said seat when pressure of the fluid in the outlet opening exceeds a force applied by said elastic device.2. A valve according to claim 1 , wherein a shutter chamber which is open towards the outlet opening and communicating with the at least one relief opening is positioned in the valve body claim 1 , a shutter insert comprising the shutter and an annular portion sealingly coupled to the shutter chamber and defining the valve seat for the shutter being housed in the shutter chamber.3. A valve according to claim 1 , wherein the valve body comprises:an outer tubular portion having a first open end forming the inlet opening, a second open end forming the outlet opening, and a side wall in which the at least one relief opening is located;a cartridge portion housed in the tubular portion, the shutter chamber and the main passageway being positioned in the cartridge portion.4. A ...

METHODS AND SYSTEM FOR A ZERO HYSTERESIS VALVE

Methods and systems are provided for a zero hysteresis valve. In one example, a valve comprises protrusions shaped to maintain a distance between a moveable portion of the valve and a valve seat. 1. A valve , comprising:a piston shaped to oscillate within a valve housing, wherein a protrusion is physically coupled to the piston and shaped to prevent the piston from moving within a threshold distance of a valve seat.2. The valve of claim 1 , wherein the valve housing comprises a single inlet arranged symmetrically along a central axis of the valve along which the piston oscillates.3. The valve of claim 2 , wherein the valve housing comprises a first outlet and a second outlet arranged directly opposite one another along an axis perpendicular to the central axis.4. The valve of claim 1 , wherein the protrusion is a first protrusion claim 1 , and where a second protrusion is physically coupled to the piston.5. The valve of claim 4 , wherein the first protrusion and the second protrusion are identically shaped claim 4 , and where the shape of the first and second protrusions is a semi-cylinder having a flat side in face-sharing contact with a top side of the piston claim 4 , and where a half-circle extends from the flat side claim 4 , a portion of the half-circle shaped to contact the valve seat without compressing claim 4 , and where the first and second protrusions are curved to match a curve of a circumference of the piston.6. The valve of claim 4 , wherein gaps separate the first and second protrusions claim 4 , and where the valve is rotational and bilaterally symmetric.7. A system claim 4 , comprising:a pressure control device comprising a moveable portion shaped to adjust flow of a fluid through an inlet and a plurality of outlets, the pressure control device further comprising one or more protrusions physically coupled to a top of the moveable portion, and where the pressure control device is symmetric.8. The system of claim 7 , wherein the protrusions include a ...

Damping mechanism for valves

A valve has a housing having an inlet and an outlet. A valve element is biased towards a closed position in which the valve element restricts fluid flow from the inlet to the outlet. The valve element is axially movable by fluid pressure at the inlet towards an open position in which the inlet is in fluid flow communication with the outlet. The valve further has a damping chamber having a metering orifice in fluid communication with the inlet. The damping chamber has an axially facing surface defined by the valve element and having a variable volume varying from a minimum volume when the valve element is in its closed position to a maximum volume when the valve element is in its open position.

System, Device And Associated Methods For Protection During Over-Temperature And Over-Pressure In A Water Heater

The T&P relief valve includes a valve spring which is sealed within a protective chamber configured to contain a first protective fluid. The valve spring is protected, by the protective chamber and first protective fluid, from corrosion, calcification and/or mineral deposits which would affect the valve assembly. A thermal element assembly is carried by an internal tongue of the valve casing. A plunger casing is configured to contain a second protective fluid to protect the upper end and captive plunger from corrosion, calcification and/or mineral deposits which could affect the thermal element. The protective chamber includes a sealing flange at a top thereof. An end cap assembly includes an end cap secured to the flange of the valve casing with the sealing flange of the protective chamber therebetween to define a casing seal for the protective chamber and the open top of the valve casing. 1. A temperature and pressure relief valve for use with a water heater tank , the relief valve comprising:a valve casing including an open top with a flange, a valve seat, a threaded inlet port, a threaded outlet port and an internal tongue positioned between the inlet port and the valve seat;a valve assembly, carried by the valve casing, and including a moveable valve shaft and associated valve head sealingly biased against the valve seat by a valve spring which is sealed within a protective chamber configured to contain a first protective fluid, wherein the valve head is configured to be moved off the valve seat against a bias force of the valve spring when a pressure in the water heater tank exceeds a pressure threshold to allow water to flow from the water heater tank via the inlet port and the outlet port, and wherein the valve spring is protected, by the protective chamber and first protective fluid, from corrosion, calcification and/or mineral deposits which would affect the valve assembly;the protective chamber including a sealing flange at a top thereof;a thermal element ...

DECOMPRESSION AIR VALVE

A valve assembly configured for use with an inflatable product, such as a mattress, chair, pool, spa, float, or another suitable inflatable product. The valve assembly includes a first valve component that serves as an opening for inflation and/or deflation of the inflatable product, and a second valve component that serves as an opening for deflation or decompression of the inflatable product. 1. An air valve assembly comprising:an air valve component including an outer body defining an internal receiving chamber, and an air valve in fluid communication with the internal receiving chamber, the outer body including an air hole fluidly connecting the internal receiving chamber and an air chamber of an inflatable product;a decompression valve component received within the internal receiving chamber and supported for longitudinal movement within the internal receiving chamber between a sealed state and an open state, the decompression valve component sealing the air valve of the air valve component from the air hole of the outer body in the sealed state, and the decompression valve component fluidly connecting the air valve of the air valve component and the air hole of the outer body in the open state;wherein the decompression valve component includes a decompression passage fluidly connecting the air chamber and atmosphere, a sealing portion configured to close the decompression passage in the sealed state, and a limit portion operably coupled with the sealing portion; andwherein when air pressure within the internal receiving chamber is greater than a decompression value, the sealing portion and the limit portion move relative to each other, and the sealing portion abuts the limit portion to move the decompression valve component from the sealed state to the open state.2. The air valve assembly of claim 1 , wherein:the sealing portion comprises a valve base defining an internal chamber, a valve body supported for longitudinal movement within the internal chamber of ...

FLUID REGULATORS HAVING CORRUGATED DIAPHRAGMS

Corrugated diaphragm apparatus for improved cycle life of a diaphragm are described herein. One described example apparatus includes a valve body having an inlet and an outlet to allow fluid to flow therethrough, a backing plate disposed within a bonnet and coupled to the valve body, and first and second diaphragms. Each diaphragm has a corrugated profile and is in a stacked configuration. The diaphragms are operatively coupled to the backing plate and each of the diaphragms is clamped between the valve body and the bonnet proximate a peripheral edge of the diaphragm. 1. An apparatus comprising:a valve body having an inlet and an outlet to allow fluid to flow therethrough;a backing plate disposed within a bonnet and coupled to the valve body; andfirst and second diaphragms, each having a corrugated profile and in a stacked configuration, the diaphragms operatively coupled to the backing plate, each of the diaphragms is clamped between the valve body and the bonnet proximate a peripheral edge of the diaphragm.2. The apparatus as defined in claim 1 , wherein each of the diaphragms has a central aperture to rigidly couple the diaphragms to the backing plate.3. The apparatus as defined in claim 1 , wherein each of the diaphragms has a central aperture to rigidly couple diaphragms to a stem fixed to the backing plate.4. The apparatus as defined in claim 1 , wherein each of the diaphragms has serrations proximate the peripheral edge of the diaphragm to increase friction between the diaphragms claim 1 , the valve body and the bonnet.5. The apparatus as defined in claim 1 , wherein the valve body or the bonnet has serrations to increase friction between the first or the second diaphragm and the valve body or the bonnet.6. The apparatus as defined in claim 1 , wherein the valve body or the bonnet holds a gasket proximate the peripheral edges of the diaphragms.7. The apparatus as defined in claim 6 , wherein the gasket has serrations.8. The apparatus as defined in claim 1 , ...

Valve, Method for Producing a Valve, and Device for Regulating the Pressure of a Fluid in a Vehicle Transmission, Comprising a Valve Designed as a Pressure Compensation Valve

A valve includes a valve housing, a piston, a support element, and a spring. The piston and the valve housing are arranged coaxially to each other on an imaginary valve axis. The piston is received in the valve housing in an axially movable manner against the spring force of the spring. The spring is supported on the support element and on the piston. The valve housing is provided with a first opening through which a fluid can flow and which can be closed by a piston base of the piston. The valve housing is provided with a second opening which can be at least partly closed by a piston casing of the piston and through which the fluid can flow. The piston casing extends outwards from the piston base in the axial direction of the support element and surrounds the valve axis. 1. A valve comprising: a valve housing , a piston , a support element , and a spring , wherein:the piston and the valve housing are arranged coaxially to one another on a valve axis, wherein the valve axis is oriented in a first axial direction and in a second axial direction opposite to the first axial direction,the piston is received in the valve housing so as to be axially movable against spring forces of the spring, wherein the spring is supported at least in the first axial direction on the support element and in the second axial direction on the piston,the valve housing is provided with a first opening which is penetrable to fluid and which can be closed by a piston base of the piston,the valve housing is provided with a second opening which can be at least partially closed by a piston casing of the piston and which is penetrable to the fluid,the piston casing extends outwards from the piston base axially in the direction of the support element and thus surrounds the valve axis,the first opening and the piston base are arranged coaxially with the valve axis,the second opening is oriented transverse to the first opening in the valve housing.2. The valve according to claim 1 , wherein the ...

Hydraulic apparatus, in particular hydraulic valve or hydraulic regulator

The present invention relates to a hydraulic apparatus, in particular to a hydraulic valve or to a hydraulic regulator, having a housing, at least one piston axially displaceably supported in a housing bore, and a respective at least one compression spring acting on the at least one piston, wherein at least one externally accessible regulating screw is adjustable within the housing bore to set the preload of the compression spring in the axial direction, wherein the adjustment distance of the at least one regulating screw is divided into at least two adjustment ranges and the torque to be applied for the adjustment of the regulating screw is larger in a second adjustment range than in a first adjustment range.

FLUID INJECTION VALVE

A fluid injection valve comprising: a valve body including a first end having a first opening, a second end having a second opening, an outer surface and an inner surface defining a fluid pathway extending between the first end and the second end; a seat arranged along the fluid pathway; a restriction device selectively abutting the seat; a biasing member arranged in the fluid pathway abutting the restriction device; urging the restriction device against the seat; a biasing element having a biasing force urging the biasing member against the restriction device; and a magnet functionally connected to the biasing element, the magnet selectively forcing the biasing member axially outwardly of the restriction device against the biasing force. 1. A fluid injection valve comprising:a valve body including a first end having a first opening, a second end having a second opening, an outer surface and an inner surface having a radially inwardly directed projection defining a fluid pathway extending between the first end and the second end;a seat arranged along the fluid pathway;a restriction device selectively abutting the seat;a biasing member arranged in the fluid pathway abutting the restriction device;a biasing element having a biasing force urging the biasing member against the restriction device; anda first magnet portion arranged in the valve body between the seat and the projection and a second magnet portion mounted to the biasing member, the first magnet portion extending over the projection, the first and second magnet portions functionally connected to the biasing element and selectively forcing the biasing member against the restriction device.2. The fluid injection valve according to claim 1 , wherein the biasing member includes a first end including a first opening arranged at the restriction device a second end claim 1 , and a conduit extending from the first end toward the second end claim 1 , the second end including a second opening.3. The fluid injection ...

SPRING SEAT DIAPHRAGM RETENTION GROOVE

A pressure relief valve controller (PRVC) includes a housing having a spring, a spring seat connected to the spring, a piston, and a portion of which is disposed between the spring seat and the piston, wherein one or more grooves and/or protrusions are disposed on at least one of the spring seat or the piston. The diaphragm can conform to the one or more grooves of the spring seat thus preventing diaphragm rupture due to excess pressure without affecting calibrations of current PRVCs. 1. A method of assembling a pressure relief valve controller , comprising:mating a piston with a first side of a diaphragm;mating a spring seat with a second side of the diaphragm, wherein the second side is opposite the first side, and wherein the spring seat has at least one groove disposed therein;inserting a fastener through the piston, the diaphragm, and the spring seat;tightening a nut to the fastener to form a pressure relief valve controller assembly;heating the PRVC assembly via a heat source to conform the diaphragm into the at least one groove disposed in the spring seat;removing the PRVC assembly from the heat source; andfurther tightening the nut to the fastener.2. The method of claim 1 , wherein the further tightening occurs while the diaphragm is at a temperature above room temperature.3. The method of claim 1 , wherein the diaphragm comprises a rubber material.4. The method of claim 1 , wherein the heating conforms the diaphragm to the at least one groove disposed in the spring seat.5. The method of claim 1 , wherein the further tightening conforms a portion of the diaphragm to the at least one groove disposed in the spring seat.6. The method of claim 1 , wherein the heating of the PRVC assembly occurs for between about 30 minutes and about 120 minutes.7. The method of claim 1 , wherein the heating of the PRVC assembly occurs at a temperature of between about 37 degrees Celsius and about 177 degrees Celsius. This application is a divisional application of U.S. patent ...

SHUT-OFF VALVE FOR A FLUID CIRCUIT AND METHOD FOR OPERATING THE SAME

A shut-off valve comprising a valve member received in a fluid passageway and rotatable about a rotation axis between open and closed positions, a casing mounted on the valve body and comprising a chamber, a valve actuating assembly mounted on the valve member for rotating the valve member between the open and closed positions and comprising a stem mounted on the valve member about the rotation axis, a blocking member mounted on the stem and a first biasing member configured to bias the valve actuating assembly in the closed position. The shut-off valve further comprising a biasing assembly comprising a second biasing member and a protrusion member, the protrusion member adapted for mating with the mating element of the blocking member for maintaining the valve member in the open position as pressure increases in the chamber. The valve member configured to close when pressure decreases in the chamber. 1. A shut-off valve for a fluid circuit , the shut-off valve comprising:a) a valve body comprising a fluid passageway extending between an inlet and an outlet, the valve body comprising a valve seat located in the fluid passageway and adapted to receive a corresponding valve member rotatable about a rotation axis between an open position wherein the inlet is in fluid communication with the outlet and a closed position;b) a casing mounted on the valve body and comprising a chamber, the chamber being in fluid communication with the fluid passageway and comprising a first aperture and a second aperture; i) a stem operatively mounted on the valve member about the rotation axis;', 'ii) a blocking member mounted on the stem and comprising a mating element;', 'iii) a first biasing member configured to bias the valve actuating assembly in the closed position;, 'c) a valve actuating assembly mounted on the valve member for rotating the valve member between the open position and the closed position, the valve actuating assembly comprisingd) a biasing assembly located in the ...

Main Stage In-Line Pressure Control Cartridge with Stepped Retainer Collar

A main stage in-line pressure control cartridge. The cartridge selectively controls flow in-line in the same direction. The cartridge is mounted inside a body and has a sliding control sleeve that can expose radial holes in the poppet to an open position and to seal the radial holes in a closed position. A retainer collar is located on the opposite end of the control sleeve. Flow is permitted in a direction from the control sleeve to the retainer collar. The body has a mating recess to accommodate a step in the retainer collar which prevents movement of the retainer collar towards the control sleeve. When fluid pressure is applied to the retainer collar in the direction of the control sleeve, the step in the retainer collar presses against the body thereby preventing the fluid pressure from moving the retainer collar. Thus, the cartridge only permits fluid flow in the direction from the control sleeve to the retainer collar but prevents fluid flow in the other direction. GLYD RINGS can also be used as seals for the control sleeve and/or the retainer collar. 1. A valve assembly , comprising:a tubular poppet comprising a first end, a second end opposite the first end, a hollow internal central region open at the first end and enclosed at the second end, and a poppet seat located at the second end;a hole set comprising at least one hole in the tubular poppet located towards the second end;a control sleeve attached to the second end, the control sleeve configured to slide between the second end towards the first end in an open position, wherein the open position configured such that at least a portion of the hole set is exposed creating an unrestrained main flow channel between the central region and an outside region of the poppet through the hole set; anda retainer collar positioned at the first end, the retainer collar comprising a step with a larger diameter than a retainer collar outer face.2. The valve assembly as recited in claim 1 , further comprising:a body ...

Pressure-regulating valve

A pressure-regulating valve having a valve piston (I 0 ) which is subjected to the action of an energy store and which is guided in longitudinally displaceable fashion in a valve housing ( 12 ), which valve housing has ports such as a supply port ( 14 ), a utility port ( 16 ) and a tank port ( 18 ), which ports can be actuated, by way of a control part ( 20 ) which closes with a sealing action, such that, in the case of a fluidic connection from the supply port to the utility port, a pressure reduction function is realized, and in the case of a fluidic connection from the utility port to the tank port, a pressure-limiting function is realized, characterized in that the control part ( 20 ) has a control rod ( 22 ) with two control bodies ( 24, 26 ) held spaced apart from one another, of which control bodies one ( 24 ) controls at least the fluidic connection between supply port ( 14 ) and utility port ( 16 ), and the other control body ( 26 ) controls at least the fluidic connection between utility port ( 16 ) and tank port ( 18 ).

Systems and Methods for Providing Surge Relief

The present disclosure pertains to a system configured to protect flows in piping systems using minimal spare components. Some embodiments may provide: a first piping subsystem configured to receive a portion of the input flow; a second piping subsystem configured to receive the portion of the input flow by substituting for the first subsystem; a test subsystem configured to detect whether each of the first and second subsystems is able to vent when at least one, in the each subsystem, of a respective pressure and a respective pressure rate satisfies first and second criteria, respectively; and first and second pilots configured to detect a maximum pressure and a maximum pressure rate, respectively, of the portion of the first and second subsystems. 1. A system for responding to pressure changes in a fluid , the system comprising:a first piping subsystem that receives an input flow;at least one independent second piping subsystem that receives another input flow;a third piping subsystem that receives the input flow or the other input flow by respectively substituting for the first piping subsystem or the at least one second piping system; andfirst and second pilots that detect a maximum pressure and a maximum pressure rate increase, respectively, in each of the piping subsystems,wherein the substituting is performed by actuating a set of valves, each valve of which being sized in relation to a diameter of a respective pipe to which the valve is coupled,wherein one or more valves associated with the first piping subsystem is of a different size from one or more valves associated with the second piping subsystem, andwherein one or more valves associated with the third piping subsystem has a diameter at least as wide as a widest diameter from among the one or more valves associated with each of the first and second piping subsystems.2. The system of claim 1 , wherein pressure relief is performed via a set of surge-relief valves.3. The system of claim 1 , wherein the ...

VALVE SEAT WITH A HARDENED SLEEVE INTERIOR AND A METAL EXTERIOR

A valve seat for use in a fluid end of a fracturing pump that includes a first body portion having an inner wall and an outer wall, wherein the inner wall forms a fluid bore and outer wall is configured to contact an inside surface of a fluid passageway of a fluid end of the fracturing pump for support therein. The seat further includes a second body portion extending from the first body portion, the second body having a frustro-conical portion forming a seating surface for receiving a valve. A portion of the first and second body portion includes a hardened material insert forming a portion of the seating surface and a portion of the inner wall of the first body, and further includes a metallic body portion affixed to the hardened material insert, the metallic body portion forming at least a portion of first body portion outer wall. 1. A valve seat for use in a fluid end of a fracturing pump , the valve seat comprising:a first body portion having an inner wall and an outer wall, wherein the inner wall forms a fluid bore and outer wall is configured to contact an inside surface of a fluid passageway of a fluid end of the fracturing pump for support therein;a second body portion extending from the first body portion, the second body portion having a frustro-conical portion forming a seating surface for receiving a reciprocatingly movable valve body; andwherein at least a portion of the first and second body portion includes a hardened material insert forming a portion of the seating surface and a portion of the inner wall of the first body, and further includes a metallic body portion affixed to the hardened material insert, the metallic body portion forming at least a portion of first body portion outer wall.2. The valve seat of claim 1 , wherein the metallic body portion forms a portion of the seating surface.3. The valve seat of claim 1 , wherein the insert forms the entirety of the seating surface.4. The valve seat of claim 3 , wherein the insert forms the ...

RELIEF VALVE DEVICE

Provided is a relief valve device including: a housing () including a valve chamber (), an orifice (), and a relief discharge port (); a valve body () that opens and closes the relief discharge port () while moving inside the valve chamber () of the housing (); a relief valve (A) including an elastic member () that elastically biases the valve body () in a direction in which the valve body () closes the relief discharge port (); and an oil control valve () that controls the supply of oil into the valve chamber (), wherein an inlet port for the oil supplied from the oil control valve () and the orifice () are configured such that oil can always circulate in the valve chamber (). 1. A relief valve device comprising:a housing including a valve chamber, an orifice, and a relief discharge port;a valve body that opens and closes the relief discharge port while moving inside the valve chamber of the housing;a relief valve including an elastic member that elastically biases the valve body in a direction in which the valve body closes the relief discharge port; andan oil control valve that controls the supply of oil into the valve chamber, whereinan inlet port for the oil supplied from the oil control valve and the orifice are configured such that oil can always circulate in the valve chamber.2. The relief valve device according to claim 1 , whereinthe valve chamber has a first valve passage portion, and a second valve passage portion having the orifice,the valve body has a first valve portion and a second valve portion arranged in an axial direction,the oil control valve supplies oil to the second valve passage portion,the first valve portion is disposed in the first valve passage portion,the second valve portion is disposed in the second valve passage portion, andoil is supplied to the second valve passage portion through the oil control valve while an amount of oil is increased and decreased steplessly, and the supplied oil is discharged from the orifice.3. The relief ...

Method and arrangement for maintaining fluid flow pressure in a system at a preset, almost constant level

A method and arrangement for maintaining fluid flow pressure in a system at a preset, almost constant level. One application is an impulse turbine's nozzle valve, which automatically maintains the system pressure essentially constant so that it does not depend on occasional variation of the pumped inflow, resulting that also the jet from the nozzle remains constant and its kinetic energy optimal. The nozzles independently maintain system pressure when the inflow varies.

Venting valve for a container for liquids

A venting valve for a container for liquid has a valve housing having a pressure compensation passage connecting the container interior with the container exterior. A valve member is arranged in the valve housing and controls the pressure compensation passage. An air-permeable filter body is secured within the valve housing and covers the pressure compensation passage, wherein a face of the filter body faces the container interior. A filter element covers the face of the filter body that is facing the container interior. The filter element is a securing element for the filter body. The filter element closes off an opening of the valve housing that opens into the container interior. 1. A venting valve for a container for liquid , the venting valve comprising:a valve housing comprising a pressure compensation passage connecting an interior of the container with an exterior of the container;a valve member arranged in the valve housing, wherein the valve member is adapted to control the pressure compensation passage;an air-permeable filter body secured within the valve housing and covering the pressure compensation passage, wherein a face of the filter body faces the interior of the container;a filter element covering the face of the filter body that is facing the interior of the container;wherein the filter element is a securing element for the filter body; andwherein the filter element closes off an opening of the valve housing that opens into the interior of the container.2. The venting valve according to claim 1 , wherein the material of the filter body has a first pore size and the material of the filter element has a second pore size claim 1 , wherein the second pore size of the filter element is smaller than the first pore size of the filter body.3. The venting valve according to claim 1 , wherein the filter element is comprised of a synthetic fabric material.4. The venting valve according to claim 3 , wherein the synthetic fiber fabric is a polyester spunbond ...

Remotely-Actuated Dual-Pressure Relief Valve

A relief valve assembly includes an actuating assembly, a relief valve, and a check valve. The actuating assembly includes a housing forming a cylinder, and a pilot piston within the cylinder. The relief valve includes a housing forming opposed first and second blind bores, a relief valve piston within the first bore and carrying a relief valve member, and a first spring acting between the pilot piston and the relief valve piston to bias the relief valve member toward a valve seat to close the valve seat. A pilot pressure is selectively applied to move the pilot piston toward the first spring to selectively increase the relief pressure of the relief valve from a first relief pressure to a second relief pressure. The check valve includes a check valve member within the second blind bore, a second spring biasing the check valve member away the second blind bore. 1. A dual-pressure relief valve assembly comprising , in combination:a pilot piston housing forming a pilot piston cylinder;a pilot piston movable within the pilot piston cylinder of the pilot piston housing;a relief valve housing secured to the pilot piston housing and forming a bore and a relief valve seat along the bore;a relief valve piston movable within the bore of the relief valve housing and carrying a relief valve member configured to close the relief seat when engaging the relief valve seat;a resilient spring acting between the pilot piston and the relief valve piston;wherein the pilot piston cylinder is provided with a pilot port to selectively engage the pilot piston with a predetermined pilot pressure to selectively move the pilot piston toward the resilient spring and the relief valve piston;wherein the resilient spring biases the relief valve member into engagement with the relief valve seat with a first predetermined relief pressure when the predetermined pilot pressure is not applied to the pilot piston and with a second predetermined relief pressure when the predetermined pilot pressure is ...

PRESSURE REGULATOR AND HYDRAULIC BRAKE SYSTEM FOR VEHICLE EQUIPPED WITH THE SAME

A pressure regulator configured to regulate a pressure of a working fluid by two pilot pressures, including: a spool valve mechanism having a spool; a first biasing mechanism configured to bias the spool toward the other end of the pressure regulator in its axial direction by a first pilot pressure in a first-pilot-pressure chamber, a second biasing mechanism configured to bias the spool toward the other end of the pressure regulator by a second pilot pressure in a second-pilot-pressure chamber; and a counter biasing mechanism configured to bias the spool toward one end of the pressure regulator by a pressure of the working fluid in a regulated-pressure chamber, wherein the counter biasing mechanism has a counter biasing piston configured to push the spool toward the one end of the pressure regulator by the pressure of the working fluid in the regulated-pressure chamber applied to the counter biasing piston. 1. A pressure regulator configured to regulate a pressure of a working fluid supplied from a high-pressure source , to a regulated pressure by two pilot pressures and configured to supply the pressure-regulated working fluid , comprising:a housing;a high-pressure port to which is supplied the working fluid supplied from the high-pressure source, a low-pressure port which is to communicate with a low-pressure source, and a regulated-pressure port for supplying the pressure-regulated working fluid, the high-pressure port, the low-pressure port, and the regulated-pressure port being provided on the housing;a spool valve mechanism provided in the housing and having a spool configured to be movable in an axial direction of the pressure regulator, the spool valve mechanism being configured such that, when the spool is located at an end position in a movable range thereof that is nearer to one end of the pressure regulator in the axial direction, communication between the low-pressure port and the regulated-pressure port is allowed while communication between the high- ...

Connector With Flange For Limiting Buckle Propagation Comprising A Differential Pressure Valve For Underwater Fluid-Transport Pipe

A junction part having a differential pressure valve () for an undersea fluid transport pipe, the valve having a valve body () with an internal chamber () opening out at one end into the pipe and at another end to the outside, a piston () arranged to subdivide the internal chamber into an admission chamber () and a discharge chamber (), the piston being movable between an open position where admission chamber and the discharge chamber communicate with each other, and a closed position where the admission chamber and the discharge chamber are scaled from each other, a rating screw () screwed into the valve body and including a bore () within which there slides a rod () of the piston (), and at least one hole () opening out into the discharge chamber and open to the outside, and a spring () rated so as to hold the piston in the closed position below a predetermined threshold pressure inside the admission chamber. 1. A junction part for an undersea fluid transport pipe , the junction part comprising:a sleeve for connecting to the ends of two unit pipe elements;a buckle arrestor flange projecting radially outwards from the sleeve; and a valve body having arranged therein an internal chamber open at one end to the pipe within which there exists an internal pressure Pi, and open at another end to the outside of the unit pipe element where there exists an outside pressure Pe;', 'a piston arranged in the internal chamber so as to subdivide the internal chamber into an admission chamber communicating with the inside of the pipe and a discharge chamber communicating with the outside, the piston being movable between an open position in which the admission chamber and the discharge chamber communicate with each other, and a closed position in which the admission chamber and the discharge chamber are scaled from each other;, 'at least three differential pressure valves positioned radially within the flange, each differential pressure valve comprising 'a spring positioned ...

Cushioned Relief Valve

A cushioned relief valve includes a housing, a piston, a cylinder cover, and a flexible diaphragm. The housing has an inlet, an interior, an outlet channel, and an outlet, the interior being a hollow cylinder in fluid communication with the inlet and the outlet channel, the outlet channel extending from a cylindrical side of the hollow cylinder to the outlet, the outlet opening outside the housing. The piston is located within the hollow cylinder and is slidable between a first position blocking the inlet and the outlet channel, and a second position opening a path for fluid flow between the inlet and the outlet channel. The cylinder cover defines a compressible gas volume in fluid communication with the second end of the hollow cylinder. The flexible diaphragm separates the compressible gas volume of the cylinder cover from the second end of the hollow cylinder. 1. A cushioned relief valve , comprising:a housing having an inlet, an interior, an outlet channel, and an outlet, the interior being a hollow cylinder with a first end in fluid communication with the inlet, a second end opposite the first end, and a cylindrical side between the first end and the second end, the cylindrical side in fluid communication with the outlet channel, the outlet channel extending from the cylindrical side of the hollow cylinder adjacent the first end to the outlet, the outlet opening outside the housing;a piston located within the hollow cylinder and slidable between a first position adjacent the first end of the hollow cylinder and a second position adjacent the second end of the hollow cylinder, the piston comprising a piston chamber inside the piston having an opening adjacent the first end of the hollow cylinder and a central aperture passing through an end of the piston opposite the opening, such that, when the piston is at the first position, the piston blocks the inlet and the outlet channel, and when the piston is in the second position, a path is opened for fluid flow ...

Pressure relief valve and secondary spring force containment assembly

A valve having secondary spring force containment includes a valve body featuring an opening with a valve closure member sized to close the opening. A stem has a first end connected to the valve closure member. A proximal spring seat is positioned adjacent to the valve body, A distal spring seat is mounted on the second end of the stem. A spring is positioned between the proximal and distal spring seats so that the valve closure member is urged into a position where the valve body opening is closed. A hollow rod is attached between the proximal and distal spring seats to provide secondary spring force containment with the stem passing through the hollow rod.

VALVE FOR PERMANENT IMPLANTATION, IN PARTICULAR FOR TREATMENT OF NORMAL PRESSURE HYDROCEPHALUS

The invention relates to an implantable valve () for a drainage system for discharging cerebrospinal fluid, comprising: a valve housing () extending along a valve axis (A), an inlet () and an outlet () as well as a valve housing () surrounding an interior space (), a valve body assembly () arranged in the interior () and movably arranged in the interior space (), a first valve seat (), wherein the valve body assembly () is configured to abut the first valve seat () to close a flow connection between the inlet () and the interior space () of the valve housing (), a second valve seat () which faces the first valve seat (), wherein the valve body assembly () is configured to abut the second valve seat () to close a flow connection between the outlet () and the interior space () of the valve housing (), and a spring device () arranged in the interior space () which exerts a spring force on the valve body assembly () in the direction of the first valve seat (). 111. Implantable valve () for a drainage device (′) for draining off cerebrospinal fluid , comprising{'b': 10', '2', '3', '4', '10, 'a valve housing () which extends along a valve axis (A) and comprises an inlet () and an outlet () as well as an interior space () surrounded by the valve housing (),'}{'b': 600', '4', '4', '6', '6', '6', '6, 'i': a', 'b', 'c, 'a valve body assembly () arranged in the interior space (), which is movably arranged in the interior space () and comprises at least a first valve body (, , , ),'}{'b': 5', '600', '5', '2', '4', '10, 'a first valve seat (), wherein the valve body assembly () is configured to abut the first valve seat () to close a flow connection between the inlet () and the interior space () of the valve housing (),'}{'b': 7', '6', '7', '3', '4', '10, 'a second valve seat (), wherein the valve body assembly () is configured to abut the second valve seat () to close a flow connection between the outlet () and the interior space () of the valve housing (), and'}{'b': 800', '4 ...

Relief Valve With Directable Outlet

A relief valve including a body defining an inlet. A valve closure element is disposed at least partially within the body and arranged to allow selective flow through the relief valve in response to a predetermined pressure. An outlet housing that is separate from and coupled to the inlet housing is rotatable with respect to the inlet housing. The outlet housing defines an outlet that is in selective communication with the inlet. 1. A relief valve comprising:a body defining an inlet and an annular body wall;a valve closure element disposed at least partially within the body and arranged to allow selective flow through the relief valve in response to a predetermined pressure; andan outlet housing separate from and coupled to the body and rotatable with respect to the body, the outlet housing defining an outlet that is in selective communication with the inlet, and a substantially cylindrical inner annular outlet housing wall arranged to abut the annular body wall, an annular space defined between the inner annular outlet housing wall and the annular body wall.2. The relief valve of claim 1 , wherein the body defines exit holes arranged down stream of the valve closure element claim 1 , the exit holes in communication with the outlet.3. The relief valve of claim 1 , wherein the body defines a shoulder claim 1 , the outlet housing abutting the shoulder claim 1 , andwherein the outlet housing is maintained on the body by the shoulder and one of a retaining clip and a lock nut.4. The relief valve of claim 1 , wherein the body defines the annular space and an exit hole claim 1 , the annular space and exit hole providing flow to the outlet.5. The relief valve of claim 1 , wherein the outlet housing defines the annular space and the body defines an exit hole claim 1 , the exit hole and the annular space providing flow to the outlet.6. The relief valve of claim 1 , wherein the body includes a first body element coupled to a second body element.7. The relief valve of claim 6 ...

Bypass valve assembly with integrated flow control valve

A bypass valve assembly includes a housing having an inlet, an outlet, and a flow passageway to allow flow of a liquid from the inlet to the outlet and a valve seat disposed about the flow passageway between the inlet and the outlet. A movable poppet is disposed in the housing to engage the valve seat in a closed position and to disengage the valve seat in an open position when pressure of the liquid in the flow passageway exceeds a preset value to allow flow of the liquid through the flow passageway. A rotatable flow control valve is disposed in the housing between the inlet and the outlet. An actuator is coupled to the flow control valve to actuate and move the flow control valve to control flow of the liquid between the inlet and the outlet when the poppet is engaged with the valve seat.

Balance valve, battery and power consumption apparatus

A balance valve, a battery, and a power consumption apparatus are provided in the embodiments of the present application. The balance valve includes a body, a breathable membrane and a gas barrier structure, where the body is provided with a ventilation channel; the breathable membrane is arranged at one end of the ventilation channel; and, the gas barrier structure is arranged at the other end of the ventilation channel, and the gas barrier structure is configured to open the ventilation channel when the gas pressures inside and outside the gas barrier structure are unbalanced, so as to achieve the gas pressure balance between the inside and outside of the gas barrier structure. The balance valve is applicable to a battery, which could achieve a balance of gas pressures inside and outside the battery when there is a pressure difference between the inside and outside of the battery.

VALVE DEVICE WITH ENHANCED RESEAT CAPABILITIES

A cartridge for being placed in a valve or other enclosure for use with a pressure system includes a cartridge body defining a cartridge cavity and having a poppet disposed therein. The poppet is seated against a valve seat that defines the outlet of the cartridge. The cartridge also defines an inlet, through which inlet pressure will flow into the cartridge cavity. The poppet is biased toward the valve seat and toward the outlet. As inlet pressure flows into the cartridge cavity, pressure buildup will act on a pressure area, which has an annular shape and excludes an outlet area defined by the valve seat. The poppet moves away from the valve seat and outlet and toward an inlet end of the cartridge in response to pressure buildup and moves back toward the outlet to reseat against the valve seat when pressure is relieved. 1. A cartridge for being inserted into a valve device for relieving a pressure buildup in a pressure system , the cartridge comprising:a cartridge body having an inlet end and an outlet end and defining a cavity therein, wherein the inlet end is configured for being disposed toward the inlet side of the pressure system;at least one inlet providing fluid communication between an area outside the cartridge and an area inside the cartridgean outlet through which fluid can flow to relieve a pressure buildup within the cartridge;a poppet disposed within the cavity of the cartridge body and being moveable longitudinally within the cavity;a valve seat disposed within the cavity between the poppet and the outlet end of the cartridge body;wherein the poppet has a first position being seated and sealed against the valve seat such that pressurized inlet fluid is separate from pressurized outlet fluid and the poppet has a second position being moved away from the valve seat, wherein pressurized inlet fluid is in fluid communication with pressurized outlet fluid;wherein inlet pressure buildup within the cavity when the poppet is in the first position acts on the ...

Storage Tank Isolation System

A storage tank isolation system for a storage tank includes a vertical riser attached to a top of the storage tank and having a cover with an aperture and a connecting member extending from a side of the vertical riser. A distal end of the connecting member is parallel to the top of the storage tank and attached to a storage hatch. The storage tank isolation system includes a valve assembly, which includes a stem extending through the aperture in the cover, a valve plate attached to the stem, and a valve seat sealed to the vertical riser at a position below a connection to the connecting member. The valve plate is moves with the stem from an open position in which the valve plate is held within the vertical riser at a position equal to or above the connection to the connecting member and a closed position. 1. A storage tank isolation system for a storage tank , comprising:a vertical riser attached to a top of the storage tank and having a cover with an aperture;a connecting member extending from a side of the vertical riser, a distal end of the connecting member being parallel to the top of the storage tank, the distal end attached to a storage hatch; a stem extending through the aperture in the cover;', 'a valve plate attached to the stem; and', 'a valve seat sealed to the vertical riser at a position below a connection to the connecting member,, 'a valve assembly, comprisingwherein the valve plate is configured to be moved with the stem from an open position in which the valve plate is held within the vertical riser at a position equal to or above the connection to the connecting member, and a closed position in which the valve plate is on the valve seat to isolate the storage tank.2. The storage tank isolation system of claim 1 , wherein the stem comprises:a second cover that is openable and interfaced with the distal end of the stem,wherein the stem is hollow so that, when the second cover is open, a safety relieve valve is interfaceable to test contents of the ...

Guide vane check valves

Guide vane check valves, guide vane check valve assemblies, and poppets for guide vane check valve assemblies are disclosed. A guide vane poppet includes an elongate central core configured to form a fluid seal with a valve body of the check valve assembly. The guide vane poppet additionally includes an elongate outer skirt and at least one guide vane radially extending between the elongate central core and the elongate outer skirt. A check valve assembly includes a valve body with a central cavity, an inlet to the central cavity, an outlet from the central cavity, and a spring seat, and further includes a spring and a poppet. The spring is oriented to press against the poppet and to urge a poppet-side sealing surface of the poppet into sealing engagement with a body-side sealing surface of the valve body.

STABILIZER CARTRIDGE FOR A FLUID REGULATOR

A stabilizer cartridge for enhancing stability of a fluid regulator is provided. The stabilizer cartridge includes a body, a first disk, and a second disk. The body is adapted to be disposed around a valve stem of the fluid regulator. The first disk is coupled to the body and defines one or more flow paths for facilitating pressure relief. The second disk is movably coupled to the body and is movable relative to the first disk responsive to fluid flow through the one or more flow paths of the first disk. 1. A stabilizer cartridge for enhancing stability of a fluid regulator having a regulator body , a control element configured to control a fluid flow through the regulator body , a valve stem coupled to the control element , and an actuator assembly operatively coupled to the valve stem to control a position of the control element , the stabilizer cartridge comprising:a body adapted to be disposed around the valve stem;a first disk coupled to the body and defining one or more flow paths for facilitating pressure relief; anda second disk movably coupled to the body, the second disk being movable relative to the first disk responsive to fluid flow through the one or more flow paths of the first disk.2. The stabilizer cartridge of claim 1 , wherein the body comprises a bore sized to receive the valve stem.3. The stabilizer cartridge of claim 1 , further comprising a biasing element arranged to bias the second disk into contact with the first disk.4. The stabilizer cartridge of claim 3 , wherein the body comprises a flanged portion claim 3 , the biasing element being disposed around the body between the flanged portion and the second disk.5. The stabilizer cartridge of claim 1 , wherein the second disk is movable between a first position claim 1 , in which the second disk contacts the first disk such that the one or more flow paths are closed claim 1 , and a second position claim 1 , in which the second disk is spaced from the first disk such that the one or more flow ...

BARRIER FLUID PRESSURE SYSTEM AND METHOD

System and methods are configured to adjust fluid pressure within a barrier fluid system on a subsea fluid processing machine. More specifically, a barrier fluid pressure system is located at the subsea location and includes a barrier fluid pressure regulator module having one input communicating or being pressure matched with a process fluid flowline and a second input communicating with the barrier fluid pressure system. The pressure regulator module is configured to locally adjust the barrier fluid pressure depending upon the fluid process pressure. 1. A subsea pressure regulation system for barrier fluid used to lubricate and protect a subsea fluid processing machine configured to process a process fluid in a subsea location , the pressure regulation system comprising:a housing configured for deployment at the subsea location;a movable member disposed within the housing and configured to longitudinally translate within the housing, the member having at least first and second surfaces, the first surface and an inner portion of the housing defining a first volume and the second surface and an inner portion of the housing defining a second volume, the first and second volumes being variable in size depending on the longitudinal position of the moveable member, the first volume configured to be filled with barrier fluid and be in fluid communication with barrier fluid circulating in the fluid processing machine and the second volume configured to be pressure matched with the process fluid in the fluid processing machine; anda biasing mechanism configured to maintain the fluid pressure of the barrier fluid circulating in the machine at a predetermined differential above the fluid pressure of the process fluid in the fluid processing machine at least in part by translation of the moveable member.2. A system according to wherein barrier fluid is added to the barrier fluid circulating in the machine by movement of the member towards the first volume thereby making the ...

FLOW AND PRESSURE STABILIZATION SYSTEMS, METHODS, AND DEVICES

A flow and pressure stabilization device comprises a housing; a first fluid chamber; a gas chamber; a deformable bladder that separates the first fluid chamber from the gas chamber and at least partially defines a volume of the first fluid chamber; a second fluid chamber in fluid communication with the first fluid chamber via a fluid passage; and a variable flow valve in fluid communication with the second fluid chamber, the variable flow valve comprising: a fluid port in fluid communication with a fluid outlet; a deformable diaphragm positioned adjacent the fluid port, the diaphragm at least partially defining a volume of the second fluid chamber; and an outflow control button coupled to the diaphragm and extending at least partially into the fluid port, the outflow control button comprising an at least partially tapered surface. 120.-. (canceled)21. A flow and pressure stabilization device comprising:a housing comprising a fluid inlet and a fluid outlet;a first fluid chamber within the housing and in fluid communication with the fluid inlet;a gas chamber within the housing;a deformable bladder that separates the first fluid chamber from the gas chamber and at least partially defines a volume of the first fluid chamber;a second fluid chamber within the housing and in fluid communication with the first fluid chamber via a fluid passage; and a fluid port in fluid communication with the fluid outlet;', 'a deformable diaphragm positioned adjacent the fluid port, the diaphragm at least partially defining a volume of the second fluid chamber; and', 'an outflow control button coupled to the diaphragm and extending at least partially into the fluid port, the outflow control button comprising an at least partially tapered surface, the outflow control button being translatable with respect to the fluid port,, 'a variable flow valve in fluid communication with the fluid outlet and the second fluid chamber, the variable flow valve comprisingwherein the diaphragm of the ...

PACKING CYLINDER FOR EXPANSION JOINT

Disclosed is an invention related to a packing cylinder for an expansion joint. A packing cylinder for an expansion joint, disclosed in the present invention, comprises: a main packing body having a through hole that forms an injection path for a packing material, having a pressure ball portion that is movably injected into the lower end of the through hole so as to open and close the through hole, and having a supporting member for preventing the pressure ball portion from falling out; and an auxiliary cylinder having on the lower side thereof an injection port to be detachably attached to the main packing body such that the packing material is injected through the through hole of the main packing body, having the central part thereof form an injection path, and having the upper part of the injection path open and close by means of a plug portion. 1. A packing cylinder for an expansion joint comprising:a main packing body having a through hole that forms an injection path for a packing material, having a pressure ball portion that is movably inserted into a lower end of the through hole so as to open and close the through hole, and having a supporting member for preventing the pressure ball portion from falling out; andan auxiliary cylinder comprising a cylinder body, the cylinder body having on a lower side thereof an injection port to be detachably combined to the main packing body such that the packing material is injected through the through hole of the main packing body, having an upper part of an injection path to be open and close by means of a plug portion, and having the injection path along a central part thereof.2. A packing cylinder for an expansion joint according to claim 1 , wherein a spiral is formed in an outside of the injection port so that the auxiliary cylinder is coupled by screw fitting.3. A packing cylinder for an expansion joint according to claim 1 , wherein an injection port of the auxiliary cylinder is inserted into the main packing body ...

PRESSURE RELEASE VALVE FOR OIL RECOVERY SYSTEMS

The disclosure relates to a pressure release valve (). The pressure release valve may be suitable for use as an oil recovery valve. In one embodiment, the pressure release valve may comprise a piston () and tube () configured to slide within a valve body, wherein the piston is configured to remain sealingly engaged with the tube until the pressure release valve fully activates. Upon activation, the piston may disengage from the tube, thereby allowing fluid to escape from the valve through the tube. 1. A pressure release valve , comprising:a valve body defining a first bore and a second bore, the valve body further defining a fluid flowpath;a piston having a first end, wherein the piston is configured to slide within the first bore;a tube having a second end, wherein the second end of the tube is configured to sealingly engage with the first end of the piston, wherein the tube is further configured to slide within the second bore while the second end and first end are sealingly engaged;wherein the first end of the piston is configured to disengage from the second end of the tube upon activation of the valve; andwherein the tube is configured to transmit fluid to the fluid flowpath when the first end of the piston is disengaged from the second end of the tube.2. The pressure release valve of claim 1 , wherein the tube has an outer surface claim 1 , the pressure release valve further comprising:a sealing mechanism configured to maintain a fluid-tight seal between the outer surface of the tube and the valve body.3. The pressure release valve of claim 2 , wherein the sealing mechanism is secured to the valve body.4. The pressure release valve of claim 2 , wherein the sealing mechanism is secured to the tube.5. The pressure release valve of claim 4 , wherein the sealing mechanism is configured to slide coaxially with the tube relative to the valve body.6. The pressure release valve of claim 1 , wherein the first end of the piston forms a flat end surface claim 1 , wherein ...

COUPLING DEVICE

Provided is a coupling device including a cylindrical housing portion, a valve portion that turns into an open state by contact with the plug device, a bellows portion having therein an expandable and contractible supply passage for supplying incompressible fluid from the plug device to a supply tube, a moving portion being movable to be brought into contact with or distanced from the plug device fitted inside one end side of the housing portion, a first pressure chamber generating a biasing force in a direction to distance the moving portion from the plug device and contract the bellows portion, and a safety valve for discharging the incompressible fluid within the supply passage to the outside when the incompressible fluid within the supply passage reaches or exceeds a predetermined level. 1. A coupling device that couples a plug device for supplying incompressible fluid , to a supply tube for supplying the incompressible fluid to a destination , the coupling device comprising:a cylindrical housing portion configured to receive the plug device inserted at one end side and the supply tube connected at the other end side;a valve portion configured to come into contact with the plug device inserted into the housing portion to turn into an open state where the incompressible fluid enters the housing portion from the plug device;a bellows portion arranged downstream of the valve portion and having therein an expandable and contractible supply passage for supplying the incompressible fluid from the plug device to the supply tube;a moving portion configured to accommodate the valve portion and the bellows portion, the moving portion being movable along an axis of the housing portion to be brought into contact with or distanced from the plug device fitted inside the one end side of the housing portion;a biasing force generating portion configured to generate a biasing force in a direction to distance the moving portion from the plug device and contract the bellows portion ...

EXPANSION VALVE OF VEHICLE AIR-CONDITIONING SYSTEM AND VEHICLE AIR-CONDITIONING SYSTEM INCLUDING THE SAME

An expansion valve of an air conditioning system for a vehicle includes: a body member where a first path and a second path that are separate from each other are formed; a movement member combined to be movable in a predetermined direction in the body member, one end of the movement member being exposed to the first path and receiving a pressure of the first path and another end opening/closing the second path; and an elastic member provided to elastically support the movement member in a direction of the first path, where as the movement member ascends or descends due to a difference between an internal pressure of the first path and an elastic force of the elastic member, the second path may be closed or opened. 1. An expansion valve of an air conditioning system for a vehicle , comprising:a body member where a first path and a second path that are separate from each other are formed;a movement member combined to be movable in a predetermined direction in the body member, one end of the movement member being exposed to the first path and receiving a pressure of the first path and another end opening/closing the second path; andan elastic member provided to elastically support the movement member in a direction of the first path,wherein as the movement member ascends or descends due to a difference between an internal pressure of the first path and an elastic force of the elastic member, the second path is closed or opened.2. The expansion valve of the vehicle air conditioning system of claim 1 , wherein:an orifice unit is formed on the second path,the body member comprises a cylinder unit communicated with the first path, andthe movement member comprises:a piston unit received in the cylinder unit,an opening unit formed with a diameter that is greater than an interior diameter of the orifice to open/close the orifice unit, anda connection unit connecting the piston unit and the opening unit.3. The expansion valve of the vehicle air conditioning system of claim 2 , ...

VALVE SEATS AND VALVE ASSEMBLIES FOR FLUID END APPLICATIONS

In one aspect, valve seats are described herein having structure and design addressing degradative stresses encountered by the seats during installation and operation in fluid ends. In some embodiments, a valve seat for use in a fluid end comprises a first section for insertion into a fluid passageway of the fluid end and a second section extending longitudinally from the first section, the second section comprising a frusto-conical valve mating surface, wherein the second section is encased in a ring imparting a compressive stress condition to the second section. 1. A valve seat for use in a fluid end comprising:a body including a first section for insertion into a fluid passageway of the fluid end and a second section extending longitudinally from the first section, the second section comprising a recess in which a sintered cemented carbide inlay is positioned, wherein the sintered cemented carbide inlay comprises a valve mating surface and exhibits a compressive stress condition.2. The valve seat of claim 1 , wherein the valve mating surface of the sintered cemented carbide inlay has surface roughness (R) of 1-15 μm.3. The valve seat of claim 1 , wherein the valve mating surface of the sintered cemented carbide inlay is frusto-conical.4. The valve seat of claim 1 , wherein the second section imparts the compressive stress condition to the sintered cemented carbide inlay.5. The valve seat of claim 4 , wherein an inner annular surface of the second section comprises one or more protrusions for engaging the sintered cemented carbide inlay.6. The valve seat of claim 1 , wherein the body is formed of metal or alloy.7. The valve seat of claim 1 , wherein outer diameter of the first section is equal to outer diameter of the second section.8. The valve seat of claim 1 , wherein outer diameters of the first and second sections are not equal.9. The valve seat of claim 8 , wherein the outer diameter of the second section is greater than the outer diameter of the first ...

VALVE DISCS FOR USE WITH FLUID VALVES

Valve discs for use with fluid valves are disclosed herein. An example valve disc for a fluid valve includes a base portion having a first side to engage a seat of the fluid valve and a second side opposite the first side, the second side being generally planar and having a centrally located recess to receive a valve stem. The valve disc further includes a circumferential wall extending away from a peripheral edge of the second side, an inner surface of the wall and the second side defining a cylindrical cavity, wherein a height of the circumferential wall is at least twice a thickness of the circumferential wall. 1. A valve disc for a fluid valve , comprising:a base portion having a first side to engage a seat of the fluid valve and a second side opposite the first side, the second side being generally planar and having a centrally located recess to receive a valve stem; anda circumferential wall extending away from a peripheral edge of the second side, an inner surface of the circumferential wall and the second side defining a cylindrical cavity, wherein a height of the circumferential wall is at least twice a thickness of the circumferential wall.2. The valve disc of claim 1 , wherein the height of the circumferential wall is at least five times the thickness.3. The valve disc of claim 1 , wherein the thickness of the circumferential wall is substantially uniform along the height.4. The valve disc of claim 1 , wherein the base portion has a height defined between the first side and the second side claim 1 , and wherein the height of the base portion is less than the height of the circumferential wall.5. The valve disc of claim 1 , wherein the valve disc is configured to move away from the seat to vent a process fluid in response to a fluid pressure in the fluid valve exceeding a maximum fluid pressure claim 1 , and wherein the maximum fluid pressure is based on a spring operatively coupled to the valve stem.6. The valve disc of claim 5 , wherein the fluid ...

Deep set production tubing pressure insensitive wireline retrievable safety valve

A production tubing pressure insensitive wireline retrievable safety valve includes an upper and a lower packing to create a hydraulic seal in an annulus surrounding a portion of the wireline retrievable safety valve and a hydraulic fluid intake port to receive hydraulic fluid in the annulus surrounding the wireline retrievable safety valve within the hydraulic seal from a surface. The hydraulic fluid is communicated to a piston shoulder chamber disposed below the hydraulic seal to move a power piston under actuation pressure and compress a power spring disposed within a gas chamber. A ball valve connected to the power piston moves a ball off seat when the power piston is forced down allowing fluid communication through a plurality of flow ports into a central lumen of the wireline retrievable safety valve exposed when the ball is off seat.

Pressure relief valve, service system, and method for servicing pressure relief valve

A pressure relief valve may include a housing and a seat portion in flow communication with an inlet passage. The pressure relief valve may also include a relief body configured to abut the seat portion and provide a fluid seal between the inlet passage and an outlet passage, and a keeper abutting the relief body. The pressure relief valve may also include an intermediate sleeve coupled to the housing and at least one waveform spring configured to abut the keeper and resist movement of the relief body and the keeper away from the seat portion, such that the relief body prevents flow communication between the inlet passage and the outlet passage. The pressure relief valve may further include an end cap including a shoulder abutting the end surface of the intermediate sleeve and a reaction surface against which an end of the at least one waveform spring abuts.

DRY ALARM VALVE ASSEMBLY FOR CONTROLLING A SPRINKLER FIREFIGHTING SYSTEM

A dry alarm valve assembly, for controlling a sprinkler firefighting system, has a first inlet connected to a pressurised air source, a second inlet connected to a pressurised water source, an outlet connected to a network of channels for supplying the sprinklers, and a valve that opens/closes a flow of water from the second inlet to the outlet; between the valve and the outlet there is a chamber communicating with the first inlet through a first pneumatic line, which includes a one-way valve; the assembly is provided with a blocking device to hold the valve closed and provided with a second pneumatic line, which is connected to an actuator of the blocking device so as to operate such actuator by means of pressurised air. 22921. Assembly according to claim 1 , characterised in that said second pneumatic line () communicates with said first inlet ().33229. Assembly according to claim 1 , characterised by comprising a relief valve () communicating with said second pneumatic line () and comprising:{'b': '33', 'a discharge () leading into the atmosphere;'}{'b': 34', '29', '33, 'a shutter () movable between a withdrawn position, in which said second pneumatic line () communicates with said discharge () through a passageway, and an advanced position, in which said passageway is closed.'}43429. Assembly according to claim 3 , characterised in that said shutter () is configured so as to move automatically into the withdrawn position when the pressure of the air in said second pneumatic line () drops below a threshold value.534. Assembly according to claim 3 , characterised in that said shutter () is configured so as to require a direct manual action or a manual remote control to be shifted into the advanced position.63433. Assembly according to claim 5 , characterised in that said shutter () projects externally with respect to said discharge ().73229. Assembly according to claim 3 , characterised in that said relief valve () is mounted on said second pneumatic line ().826. ...

PRESSURE CONTROL VALVE AND DEVICE COMPRISING SUCH A PRESSURE CONTROL VALVE , FOR CONTROLLING OR REGULATING THE PRESSURE OF A COMPRESSED FLUID IN A PILOT PRESSURE CHAMBER

A pressure control valve for controlling or regulating a pressure of a compressed fluid in a pilot pressure chamber includes a valve housing with at least one inlet which is fluidically connectable to the pilot pressure chamber, at least one outlet, a tappet mounted in the valve housing to be moved along a longitudinal axis by means of an actuation device that can be energized, and a first seal element which is mounted in the valve housing to move along the longitudinal axis and which is preloaded into a closed position by means of a first spring. The first seal element rests against a first valve seat in the closed position. The first seal element has a passage through which the compressed fluid can flow. A second seal element is secured to the tappet and can be moved by the energization of the actuation device. 13012. A pressure control valve () for controlling or regulating a pressure of a compressed fluid in a pilot pressure chamber () , comprising{'b': ['50', '41', '12', '43'], '#text': 'a valve housing () with at least one inlet (), which can be fluidically connected to the pilot pressure chamber (), and at least one outlet (),'}{'b': ['52', '50', '53'], '#text': 'a tappet (), which is mounted in the valve housing () so as to be movable along a longitudinal axis (L) by means of an actuation device () that can be energized,'}{'b': ['54', '50', '56', '54', '58', '54', '60'], '#text': 'a first seal element () which is movably mounted along the longitudinal axis (L) in the valve housing () and is preloaded by means of a first spring () into a closed position, in which the first seal element () rests against a first valve seat (), the first seal element () having a passage () through which the compressed fluid can flow,'}{'b': ['64', '52', '53', '52', '64', '54', '60', '64', '66', '66'], '#text': 'a second seal element (), which is secured to the tappet () and, by energizing the actuation device (), can be moved by means of the tappet () along the longitudinal axis ...

Damping Valve For A Vibration Damper

A damping valve includes a damping valve body with at least one through-channel, the outlet cross section of which is at least partially covered by at least one valve disk. The at least one valve disk is preloaded by at least two star springs. Each star spring has a support ring and a quantity of radial spring arms. The support rings lie one on top of the other in the installed position. The star springs are layered in opposite orientation such that the spring arms of at least two adjacent star springs face in the same direction with respect to the valve disk, and this star spring package has an anti-rotation element in an assembled position. 113.-. (canceled)14. A damping valve comprising:a damping valve body comprising at least one through-channel having an outlet cross section;at least one valve disk at least partially covering the outlet cross section;at least two star springs constructed to preload the at least one valve disk, each of the at least two star springs comprising a support ring and a plurality of radial spring arms; the support rings disposed on top of each other in the installed position;the star springs being layered in the same orientation such that the spring arms of at least two adjacent star springs are facing in the same direction with respect to the valve disk; andan anti-rotation element preventing the adjacent star springs from rotating with respect to each other in an assembled position.15. The damping valve according to claim 14 , wherein the anti-rotation element is formed by at least one weld.16. The damping valve according to claim 15 , wherein the weld is a resistance weld.17. The damping valve according to claim 14 , wherein the star springs comprise at least one access opening which is at least partially covered with a supporting ring by an adjacent star spring.18. The damping valve according to claim 15 , wherein the weld is a laser weld.19. The damping valve according to claim 14 , wherein the anti-rotation element is connected ...

BYPASS VALVE AND PIG HAVING A BYPASS VALVE

A bypass valve for an inspection and/or cleaning pig which is intended to move through a pipeline through which medium flows. The bypass valve comprises an inner space which is provided with a flow profile and in which there is arranged a piston which can be moved in the longitudinal direction of the bypass valve by means of a force storage medium in a pressure-dependent manner. The piston can also be moved between a first open position of the bypass valve which enables a bypass for the medium and a second position which at least substantially closes the bypass. The piston can be further moved from the first position via the second position in the same direction into a maximum position which opens the bypass again and pig for inspection and/or cleaning of pipelines. 1. A bypass valve for an inspection and/or cleaning pig for a pipeline through which a medium flows , the bypass valve comprising:an inner space which is provided with a flow profile and in which there is arranged a piston which is movable in a longitudinal direction of the bypass valve by means of a force storage medium in a pressure-dependent manner;wherein the piston moves between a first open position which creates a bypass for the medium, and a second position which at least substantially closes the bypass,wherein the piston can be further moved from the first position via the second position in the same direction to a third, maximum position which opens the bypass again.2. The bypass valve according to claim 1 , wherein the piston is constructed to assume claim 1 , in a pressure-dependent manner claim 1 , intermediate positions in a region (A) between the first and the second position claim 1 , in a drive pressure range between 0.01 and 0.5 bar claim 1 , in order to enable a pressure-regulated volume flow through the bypass valve.3. The bypass valve according to claim 1 , wherein the maximum position is located in an upstream and widened region of the inner space with respect to a throughflow ...