WO2012004575A1 - Soupape de régulation de fluide - Google Patents

Soupape de régulation de fluide Download PDF

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Publication number
WO2012004575A1
WO2012004575A1 PCT/GB2011/001040 GB2011001040W WO2012004575A1 WO 2012004575 A1 WO2012004575 A1 WO 2012004575A1 GB 2011001040 W GB2011001040 W GB 2011001040W WO 2012004575 A1 WO2012004575 A1 WO 2012004575A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
valve member
fluid control
control valve
inlet
Prior art date
Application number
PCT/GB2011/001040
Other languages
English (en)
Inventor
Darren Webb
Original Assignee
Polypipe Terrain Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Polypipe Terrain Ltd filed Critical Polypipe Terrain Ltd
Publication of WO2012004575A1 publication Critical patent/WO2012004575A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/141—Check valves with flexible valve members the closure elements not being fixed to the valve body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre

Definitions

  • the present invention relates to a fluid control valve, more particularly, but not limited to, a valve for allowing for gravitational flow of water and preventing back flow of air.
  • Fluid control valves are known where a U-bend is formed in a pipe, which is filled with water. When water flows from an inlet the fluid level is raised over an outlet lip and fluid flows out of the outlet. However, when a back flow of air or other gases comes from the outlet, it cannot pass through the water filled U-bend. However, if the back pressure is high enough the fluid level at the outlet side of the U-bend can be reduced until air can pass under the U-bend and pass out of the inlet of the valve. Such an occurrence is accompanied by a characteristic "glug" as the, generally malodorous, gas escapes from the inlet of the U-bend. Further, where such a trap dries out the valve is effectively removed, allowing undesired back flow of gas.
  • the present invention seeks to overcome or ameliorate at least one of the disadvantages associated with the prior art.
  • a fluid control valve which allows liquid flow from an inlet to an outlet, but substantially prevents back flow of gases from the outlet to the inlet.
  • a housing having an inlet and an outlet, is provided and a valve member, which may be resiliently deformable, is provided at least partly therein. A portion of the valve member is biased to form a seal with a contact region. The contact region may be formed from the housing. As water flows from the inlet to the outlet, it forces open the seal between the valve member and the housing so allowing the water to flow to the outlet.
  • the valve member is formed with a blind recess extending towards the inlet of the housing from the outlet end, and, in embodiments, from the seal or contact portion of the valve member, which contacts a contact region in an internal volume of the housing.
  • the contact region may be formed on the inner surface of the housing as well as on a separate member.
  • gas attempts to flow from the outlet to the inlet, it flows into the recess of the valve member, which forces the contact portion of the valve member into stronger contact with the contact region of the housing, so preventing the flow of gas between the contact portion of the valve member and the contact region of the housing and thus preventing gas flow from the outlet of the valve to the inlet.
  • the separation of the contact portion of the valve and contact region in the housing may be radial deformation, or may be translation of the valve member relative to the housing. This may be along a longitudinal direction of the housing, extending between the inlet and the outlet.
  • the contact region in the housing may be formed on a seal member. This may provide an additional seal.
  • the seal member may form a ridge, the ridge providing a raised linear contact region.
  • the seal member may be mounted on an inner surface of the housing.
  • the seal member may be annular and may be a rubber O-ring.
  • the contact portion of the valve member may be between the inlet end and the outlet end.
  • the valve member may have an additional contact portion, the additional contact portion of the valve member being biased into contact with an additional contact region in the internal volume of the housing to form a seal therebetween.
  • the additional contact region of the housing may be formed on a protrusion, and the protrusion may be a ridge.
  • the additional contact portion of the valve member may be between the inlet end and the outlet end.
  • the valve member may taper away from the sides of the housing as it extends away from the contact portion towards the inlet of the housing. At or adjacent to the inlet end of the valve member there may be one or more barbs which extends laterally to engage with the end of the housing to retain the valve member in position in the housing. In this case, the valve member may extend pass the outlet of the housing. The valve member may also extend, in the region outside the housing, laterally beyond the housing, so that the contact portion of the valve member is formed at the outlet of the housing. Instead of laterally extending barbs, mounting means may be formed which attach the valve member to the region of the inlet of the housing.
  • the valve member may be substantially conical or bell shaped, tapering towards an apex towards the inlet end of the housing, the cone or bell being substantially hollow to form the blind recess in the valve member.
  • the valve member may be formed from cured rubber or another deformable resilient material.
  • the housing may be formed from a rigid plastics material.
  • the housing may be cylindrical and the housing, at least at the contact region, together with the contact portion of the valve member, may be substantially circular in cross-section.
  • a fluid control valve comprising a housing, comprising an inlet and an outlet and an internal volume therebetween, and a resiliently deformable valve member, having an inlet and a contact portion, the valve member extending at least partially within the housing, from a contact region on an inner surface of the internal volume of the housing towards the inlet of the housing, wherein a contact portion of the valve member is biased into contact with the contact region of the housing, the valve member forming a blind recess extending towards the inlet of the housing from the contact portion of the valve member.
  • a one-way fluid control valve comprising: a housing comprising an inlet and an outlet and an internal volume therebetween; and a valve member having an inlet end, a contact portion and an outlet end, the valve member extending at least partially within the housing, from a contact region in the internal volume of the housing towards the inlet of the housing; wherein the contact portion of the valve member is biased into contact with the contact region to form a seal therebetween; wherein the valve member comprises one or more portions that extend laterally towards the inlet of the housing and contact adjacent or at the inlet end of the housing to retain the valve member in the housing; and wherein the portion(s) is (are) resiliently deformable to allow the valve member to move in a longitudinal direction between a sealing position in which the valve is sealed, and to which the valve member is biased by the portion(s), and an open position in which liquid can flow from the inlet to the outlet of the valve, the valve member being moved to the open position from the sealing position by movement in the direction from
  • a one-way fluid control valve comprising: a housing comprising an inlet and an outlet and an internal volume therebetween; a valve member having a contact portion; the valve member being axially displaceable in said housing between a sealing position in which the valve is sealed by contact between the contact portion and a contact region, and an open position in which liquid can flow from the inlet to the outlet of the valve, and wherein the control valve includes biasing means to bias the valve member to the sealing position to bias the contact portion with the contact region.
  • the valve member comprises an outlet end and an inlet end and the valve member forming a blind recess extending towards the inlet of the housing from the outlet end of the valve member.
  • the biasing means comprising a resilient spring.
  • Other forms of biasing means may also be used.
  • the biasing means may be a separate part of formed integrally with the valve member.
  • the valve member is formed as a truncated cone.
  • the contact portion of the valve member is angled relative to a plane transverse to the longitudinal axis of the valve.
  • the contact portion of the valve member when engages with the contact region provides a component of sealing force angled relative to a place transverse to the direction in the which the valve member is axially displaceable.
  • the valve member is axially displaceable in a direction parallel to the longitudinal axis of the housing.
  • the housing is formed substantially as a cylinder.
  • the housing is formed of two parts.
  • the biasing means acts axially at the centre of the valve member.
  • the valve member includes a mounting member.
  • the mounting member is formed as a central support.
  • the central support is a shaft.
  • the shaft is located in a support member.
  • the shaft is axially displaceable relative to the support member.
  • the support member comprises a spigot.
  • the spigot is attached to the housing via radial webs.
  • the valve member is arranged to deflect liquid flowing through said control valve away from the biasing means.
  • the valve member is arranged to permit annular flow past the valve member. This arrangement seeks to prevent any debris or other matter carried in the fluid interfering with the biasing means.
  • the contact region is a seal member.
  • the seal member is formed as an annular seal around the inner periphery of the housing.
  • the seal member is formed of a resilient material.
  • the seal member is formed of rubber.
  • the seal is formed with a circumferential groove to locate over a corresponding circumferential groove provided around the inner periphery of the housing.
  • the valve member is displaceable along the longitudinal axis of the housing.
  • the one-way fluid control valve is a waste water fluid control valve, such as a sewage control valve.
  • Figure 1 shows a fluid control valve according to a first aspect of the invention
  • Figure 2 shows a perspective cut-through of the fluid control valve of Figure 1 ;
  • Figure 3 shows a cross-section through A-A of Figure 1 ;
  • Figure 4 shows a fluid control valve according to a second embodiment of the invention
  • Figure 5 shows a perspective cut-through of the fluid control valve of Figure 4
  • Figure 6 shows a cross-section through A-A of Figure 4;
  • Figure 7 shows a fluid control valve according to a third embodiment of the invention
  • Figure 8 shows a plan view of the fluid control valve of Figure 7;
  • Figure 9 shows a perspective cut-through of the fluid control valve of Figure 7;
  • Figure 10 shows a cross-section through A-A of Figure 7;
  • Figure 11 shows a fluid control valve according to a fourth embodiment of the invention
  • Figure 12 shows a view of the fluid control valve of Figure 11 from the outlet side
  • Figure 13 shows a cross-section through A-A of Figure 12
  • Figure 14 shows a perspective cut-through of the fluid control valve of Figure 1 1.
  • the figures show a fluid control valve 10, 100 comprising a housing 20, 120 comprising an inlet 22, 122 and an outlet 24, 124, with an internal volume 26, 126 therebetween.
  • a valve member 30, 130 is provided, which in the present embodiment is resiliency deformable, having an inlet end 32, 132, a contact portion 34, 134 and an outlet end, which in embodiments coincides with the contact portion 34.
  • the valve member 30, 130 extends at least partially within the housing 20, 120 from a contact region 28, 128 in the internal volume of the housing 20, 120 towards the inlet 22, 122 of the housing 20, 120.
  • the contact region is formed on an inner surface of the housing.
  • the contact portion 34, 134 of the valve member 30, 130 is biased into contact with the contact region 28, 120 to form a seal.
  • the valve member 30, 130 forms a blind recess 36, 136 extending towards the inlet 22, 122 of the housing 20, 120 from the outlet end of the valve member 30, 130.
  • the valve is arranged to allow fluid flow from the inlet 22, 122 to the outlet 24, 124, but substantially prevent fluid flow from the outlet 24, 124 to the inlet 22, 122.
  • Figures 1 to 3 show a first embodiment of the invention.
  • the valve member 30 is retained within the housing 20 which is cylindrical.
  • the valve member 30 is substantially conical.
  • the valve member 30 is formed of rubber material and is annular in cross-section, the radius of the annulus decreasing from a value substantially equal to the internal diameter of the housing 20 at the contact portion 34 to a value substantially less than the internal diameter of the housing 20 as the valve member 30 extends from the contact region 28 of the housing 20 towards the inlet 22.
  • the valve member 30 is formed as a solid cylinder, the annulus being filled in.
  • mounting means in the present embodiment in the form of a PVC ring 40, is provided to mount the valve member 30 to the housing 20.
  • the PVC ring 40 is tapered and sized to grip the solid end of the valve member 30.
  • the PVC ring 40 has a number of arms, in the present embodiment three, which extend to an outer ring 42, also of PVC, which is mounted to the internal surface of the housing 20, by way of a shoulder, which prevents the outer ring 42 from moving further into the housing 20, and an annular washer or the like, which is placed on the inlet side of the outer ring 42 to wedge the outer ring 42 between the shoulder and the washer and prevent relative movement thereof.
  • fluid enters the assembly from the inlet 22 and flows between the outer surface of the valve member 30 and the inner surface of the housing 20 until it arrives where the contact portion 34 of the valve member abuts the contact region 28 of the housing 20.
  • the valve member 30 is resiliently deformable, the water deforms the valve member radially inwardly at least around some of the contact portion 34 and the water can pass from the inlet side of the valve member 30 to the outlet side of the valve member 30 and out through the outlet 24.
  • the contact portion 34 of the valve member 30 is biased into a sealing contact with the contact region 28 of the housing 20.
  • the contact portion 34 of the valve member 30 is at the end of the valve member closest to the outlet of the housing and the valve member 30 closest to the housing 20.
  • the housing is substantially cylindrical and the contact portion of the valve member is substantially circular in cross-section.
  • the cross-sectional area of the space between the valve member 30 and housing 20 gradually decreases from the inlet end to the outlet end of the valve. In this way, the water flowing into the inlet is channelled to the contact portion 34. Further, as the relative angle between the outer surface of the valve member 30 and the inner surface of the housing 20 decreases towards the contact portion 34, as water is channelled towards the contact portion 34, the contact portion 34 deforms radially inwardly to form a gap between the valve member 30 and the housing 20 to allow the water to pass therethrough. Once the water has finished passing therethrough, the resilient nature of the valve member 30 causes the contact portion 34 to come back into contact region 28 of the housing 20.
  • FIGS 4 to 6 show a second embodiment of the invention.
  • the second embodiment is similar to the first embodiment and so only differences between the two embodiments will be described herein.
  • the valve member 130 as shown in Figure 4 extends longitudinally beyond the outlet 124 of the housing 120. Further, the end of valve member 130 extends radially beyond the inner diameter of the housing, which securely biases the contact portion 134 of the valve member 130 against the contact region 128 of the housing 120.
  • the operation of the valve of the second embodiment is the same as that of the first embodiment with the exception that the water flowing passed a gap formed between the contact portion 134 and contact region 128 exits the housing 120 at that point.
  • the resilient nature of the valve member 130 causes the contact portion 134 to reseal with the contact region 128.
  • the second embodiment also differs from the first embodiment in that the inlet end of the valve member 130 is formed with two barbs 150 as can be most clearly seen in Figures 5 and 6. These barbs extend laterally from the tapered end of the valve member 130 beyond the internal diameter of the housing 120 and abut on a shoulder 152 on a longitudinal end of the housing 120. In this way, the valve member 130 is retained within the housing. Further, deformation of the barbs 150 allows the valve member 130 to move in a longitudinal outlet direction under pressure of water flowing from the inlet to the outlet.
  • the water flow can, as well as, or instead of, deforming the valve member 130 radially inwardly to allow the water to pass between the contact portion 134 and contact region 128, cause the whole valve member 130 to move longitudinally by flexing of the barbs 150 to form a gap between the contact portion 134 and contact region 128.
  • the resiliently deformable barbs return to their normal position, so sealing the gap between the contact portion 134 and the contact region 128.
  • back gas flow increases the pressure in the blind recess 136, which pushes the contact portion 134 into firm contact with the contact region 128, closing the valve and presenting back flow of the gas.
  • the blind recess may not be formed; the valve member may instead be solid.
  • Figures 7 to 10 show a third embodiment of the invention.
  • the third embodiment is similar to the first embodiment and so only differences between the two embodiments will be described herein.
  • the valve member 30 has an additional contact portion 204 which is positioned on the radially outer surface of the valve member between the inlet end 32 and the outlet end of the valve member 30.
  • the additional contact portion 204 of the valve member 30 is biased into contact with an additional contact region 206 in the internal volume of the housing 20 to form a seal therebetween.
  • the contact region 206 is formed on a radially inwardly extending rubber seal member (O-ring) 200.
  • the seal member 200 is a profiled seal.
  • the rubber seal member 200 is mounted on the inner surface of the housing 20, by way of a moulded seal mounting 202 having a recess which corresponds to the shape of the rubber seal member 200, which prevents the rubber seal member 200 from moving longitudinally in the housing 20.
  • the seal member 200 and the seal mounting 202 are separate components. This allows the seal member 200 to be easily removed from the seal mounting 202 and replaced.
  • the seal member 200 and seal mounting 202 could be formed to be a single component.
  • the seal mounting 202 is moulded in two parts, and the seal member 200 is held between the two parts.
  • the seal member 200 surrounds the valve member 30, providing a contact region 206 all around the circumference of the housing 20.
  • the provision of two contact portions and two contact regions enables the one-way fluid control valve to seal more effectively and so better prevent back flow of gases from the outlet to the inlet.
  • Figures 8 to 10 show two common features of the first and third embodiments: the inlet 22 is narrower than the general diameter of the main part of the housing 20 containing the valve member 30, and the inlet 22 is offset from the main part of the housing 20 containing the valve member 30. Furthermore, the outlet 24 is narrower than the general diameter of the main part of the housing 20 containing the valve member 30, and the outlet 24 is offset from the main part of the housing 20 containing the valve member 30 in the opposite direction to the offset of the inlet 22. The outlet 24 also has a sloping surface connecting it to the main part of the housing 20 containing the valve member 30.
  • valve member 30 When the one-way fluid control valve is arranged vertically with the inlet 22 above the outlet 24, if the valve member 30 does not completely seal, water can flow down the surface of the valve member 30 and drip off its bottom edge. As the offset of the inlet 22 and the outlet 24 are in opposite directions, most of the water dripping off the bottom edge of the valve member 30 will drip onto the sloping surface above the outlet 24. As a result, the water will not pass straight out of the outlet 24 and down any vertical pipe connected to the outlet 24 without touching the sides. This reduces the noise of water dripping through the valve if the valve has not completely sealed.
  • Figures 11 to 14 show a fourth embodiment of the invention.
  • the fluid control valve 1000 comprises a body formed of two substantially cylindrical housing parts 1020a, 1020b.
  • the two cylindrical parts each comprise a cylindrical portion 1061a, 1061b of increased diameter with a tapered transition 1062a, 1062b therebetween.
  • the portions 1061a, 1061b each comprise an annular flange 1060a, 1060b formed on the portions 1061a, 1061 b.
  • the body is joined together by the annular flanges 1060a, 1060b using any suitable means such as screws, snap fit joints, solvent welding, push fit etc.
  • the in the, in use, uppermost housing part 1020a is formed with an inwardly radially extending lip 1063 provided in the region of the tapered transition 1062a.
  • An annular rubber seal 1050 is provided on the inner side of the housing. The rubber seal provides a contact region.
  • the rubber seal 1050 has an annular groove 1064 which is formed to fit the annular lip 063 such that the rubber seal is retained in position within the housing 020a.
  • a central axially extending spigot 1070 is provided in the, in use, lowermost housing part 1020b.
  • the spigot 1070 is formed as a hollow cylinder with an inwardly extending annular flange section 1064 at one end thereof.
  • the spigot 1070 is supported, in the embodiment, by three spaced radial webs 1060 which connect the spigot 1070 to the inner surface of the housing part 1020b in the region of the transition 1062b.
  • a valve member 1030 is provided formed with a cylindrical section adjoining a truncated cone section.
  • the valve member is formed with a blind recess 1036.
  • the truncated cone section comprises a planar circular face which is orientated transverse to the longitudinal axis of the housing.
  • the outer peripheral surface of the truncated cone section provides a contact region 1028.
  • the valve member 1030 includes a mounting member in the form of a central support 1071 which is joined to the underside of the truncated cone section of the valve member 1030.
  • the central support 1071 comprises a shaft of a diameter to fit within the annular flange 1064 of the spigot 1070.
  • the support 1071 is located within the spigot 1070.
  • a washer 1056 in the embodiment of stainless steel, is affixed to the end of the central support 1071 using a screw 1057.
  • the washer is located, in use, on the side of the annular flange 1064 facing away from the inlet 1032 of the housing 1020a. In this way, the washer 1056 acts as a stop to limit the axial displacement of the central support 1071 and hence also the valve member 1030 connected thereto.
  • Biasing means in the embodiment in the form of a coil spring 1055, is provided around the central support 1071.
  • the ends of the spring engage respectively with the inner surface of the truncated cone and the annular flange 1064 of the spigot 1070.
  • the valve member 1030 is biased axially, i.e. along the axis of the valve, towards the sealing region in formed with the rubber seal 1050.
  • valve member 1030 In use, before the inflow of water, the valve member 1030 is in a sealing position and is biased against the rubber seal 1050 to form a substantially air-tight seal between the contact portion 1028 of the valve member and the rubber seal 1050. As fluid enters the housing 1020a from the inlet 1032 it proceeds to contact the top of the truncated cone of the valve member 1030. When the head of water on the valve member 1030 is of a level to overcome the opposing force of the spring 1055, the valve member is displaced to allow water to flow between an annular gap formed between the rubber seal 1050 and the valve member 1030.
  • the spring 1055 biases the valve member 1030 axially towards the seal 1050 to close the gap and seal the valve. If gas flows into the outlet 1024, the pressure in the blind recess 1036 of the valve member 1030 increases the seal between the contact region 1028 and the seal 1050. In this way, the back flow of gas from the outlet 1024 towards the inlet 1032 is prevented.
  • the biasing means in the embodiment in the form of a coiled spring, is shielded from the flow of liquid by the valve member 1030 and water is deflected around the annular periphery of the housing.
  • valve member 1030 is formed of a substantially rigid material for example a plastics material.
  • valve member is formed as a truncated cone, other suitable forms are envisaged such a bell shaped or full cones.
  • the housing parts 1020a, 1020b may be provided with connecting means, such as screw threads, socket connections to provide a join with connecting pipes in a system in which it is fitted.
  • mounting member in the embodiment is attached to the outlet side of the housing, embodiments are envisaged where the mounting member is attached to the inlet side of the housing. Further contact portions may also be provided.

Abstract

L'invention porte sur une soupape de régulation de fluide unidirectionnelle (110) comprenant un corps (120) qui présente une entrée (122) et une sortie (124), et un volume intérieur (126) situé entre elles ; et un élément de soupape (130) ayant une extrémité d'entrée, une partie de contact (134) et une extrémité de sortie, l'élément de soupape (130) s'étendant au moins partiellement dans le corps (120), en allant d'une région de contact (128) dans le volume intérieur du boîtier vers l'entrée (122) du corps (120). La partie de contact (134) de l'élément de soupape (130) est rappelée en contact avec la région de contact (128) pour former un joint entre elles. L'élément de soupape (130) comprend une ou plusieurs parties (150) qui s'étendent latéralement vers l'entrée (122) du corps (120) et qui sont en contact à proximité de l'extrémité d'entrée du boîtier (120) ou à cette extrémité pour retenir l'élément de soupape (130) dans le corps (120). La partie ou les parties (150) est ou sont élastiquement déformables pour permettre à l'élément de soupape (130) de se déplacer dans une direction longitudinale entre une position de fermeture dans laquelle la soupape (110) est fermée, et vers laquelle l'élément de soupape (130) est rappelée par la partie ou les parties (150), et une position ouverte dans laquelle le liquide peut s'écouler de l'entrée (122) à la sortie (124) de la soupape (110), l'élément de soupape (130) étant amené à la position ouverte en partant de la position de fermeture, par un mouvement dans la direction allant de l'entrée (122) à la sortie (124).
PCT/GB2011/001040 2010-07-08 2011-07-08 Soupape de régulation de fluide WO2012004575A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1011547.5A GB2481844B (en) 2010-07-08 2010-07-08 Fluid control valve
GB1011547.5 2010-07-08

Publications (1)

Publication Number Publication Date
WO2012004575A1 true WO2012004575A1 (fr) 2012-01-12

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EP0560221A1 (fr) * 1992-03-11 1993-09-15 Ems-Inventa Ag Soupape de retenue
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CH706596A1 (de) * 2012-06-06 2013-12-13 Keller Hans Geruchsverschluss für einen Sanitärwasserabfluss.
CN113439174A (zh) * 2018-12-21 2021-09-24 安沃驰有限责任公司 用于流体技术应用的密封膜和带有密封膜的止回阀
CN113439174B (zh) * 2018-12-21 2023-11-10 安沃驰有限责任公司 用于流体技术应用的密封膜和带有密封膜的止回阀

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GB2481921B (en) 2018-02-14
GB2481921A (en) 2012-01-11

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