Abstract: An improved valve assembly for routing gas, such as a high-pressure sour gas from an oil well, into a pneumatic device is disclosed. The pneumatic device may be in operational communication with an injection pump adapted to inject chemicals, such as methanol, back into the oil well. The valve assembly may be operated by a gas cylinder to direct the high-pressure gas from a pressure port into the intake pneumatic device and route the exhaust gas from the pneumatic device to an exhaust port. The valve assembly includes a valve element slidably disposed in a valve housing, wherein the valve element includes a frustoconical sealing surface that is complementary to a frustoconical valve seat provided on the interior surface of the valve housing.

Abstract: A method for joining a first housing component to a second housing component by welding, the first housing component and the second housing component each being constituted as hollow bodies having a closed hollow cross section, a shape of the hollow cross section of the second component corresponding to a shape of the hollow cross section of the first component, including: making available the first housing component having a first inside dimension, making available the second housing component having an outside dimension, the outside dimension of the second housing component being smaller than the inside dimension of the first component, disposing the second housing component in the first housing component so that a peripheral gap is constituted between an inner wall of the first housing component and an outer wall of the second housing component, the region having a gap between the two housing components being a joining region, and welding the first housing component to the second housing component in the r

Abstract: A poppet valve has a valve pin movable relative to a bore, and with a curved outside shape. A flow cross-sectional area across the poppet valve is defined between an outer diameter of the curved outside shape, and an inner diameter of the bore. Further, a vapor cycle incorporating such a poppet valve is disclosed and claimed.

Abstract: Shut-off valve of a fluid having a valve body (20), an obturator (5) housed in the valve body and rotatable around a rotation axis (X), and a command organ (2) connected to the obturator (5) by means of a command stem (12) which extends in an aperture made in a cylindrical projection (21) of the valve body (20).

Abstract: Method of bonding a layer (S) of silicone to a substrate (4?) of methacrylic polymer; the method involves positioning between the methacrylate polymer and the silicone a layer (9) of an organosilane having the formula R1Si(R2)3, in which R2 is OH and R1 is a methacrylic residue.

Abstract: The invention discloses a valve housing (1) having a main bore (6) and at least one connecting bore or secondary bore (12, 20, 22, 36), the diameter of which is smaller than the diameter of the main bore. The connecting or secondary bores end at a side wall limiting the main bore, wherein the side wall has different material thicknesses being distributed at the circumference thereof. According to the invention, to reduce material stresses the valve housing has tension reducing grooves (14, 26, 28, 34) in the ending regions, said grooves being integrally molded into the side wall of the main bore.

Abstract: A valve has a vale body that is movable in a valve housing opposite a valve seat. A space is formed between the valve body and the valve housing. The space is partitioned or limited by way of at least one seal. The at least one seal has a carrier element made from metal.

Abstract: A vacuum valve including a wall (1) having a valve opening (2) surrounded by a valve seat (4), at least one valve plate (5), which is disposed in a vacuum region of the vacuum valve and can be moved from an open position in a longitudinal direction (6) into an intermediate position, and from the intermediate position in a transverse direction (7) perpendicular to the longitudinal direction (6) into a closed position. At least one valve rod (12), which carries the valve plate (5), is led through the vacuum region of the vacuum valve and can be displaced relative to the wall (1) in the longitudinal direction (6) located parallel to the longitudinal axis (14) of the valve rod (12), and also in the transverse direction (7). Longitudinal and transverse drive devices (15, 15?, 16, 16?) are disposed outside of the vacuum region of the vacuum valve, and the drive devices can displace the valve rod (12) in the longitudinal direction (6) and in the transverse direction (7) in order to adjust the valve plate (5).

Abstract: The invention relates to a vacuum valve for interrupting, releasing or controlling a flowing medium in the interior (3) of the vacuum valve (1). A shaft (6) coupled to a valve drive (5) is routed gas-tight from the atmospheric area (4) to the interior (3) through a valve housing (2) by way of a sealing shaft penetration (20) so that a movement produced by the valve drive (5) can be transferred from the atmospheric area (4) to the interior (3) for the purposes of interrupting, releasing or controlling the flow. The shaft penetration (20) comprises a first seal ring (21) that concentrically surrounds the shaft (6) in a gas-sealing manner in the radial direction, a support surface (22) that faces in an axial direction with respect to the shaft (6), at least partially, against said support surface the first seal ring (21) abuts in a gas-tight sealing manner, a support ring (23) and a spring (25). An inner, conic segment (24) of the support ring (23) surrounds the first seal ring (21), at least partially.

Abstract: A valve for a fuel pressure regulator includes a shaft defining a longitudinal axis. The shaft has a protuberance defining a mating surface that is positionable against a valve seat of the regulator and a flow surface that intersects the mating surface. A first angle is defined between the mating surface and a plane that is orthogonal to the longitudinal axis of the shaft. A second angle is defined between the flow surface and a plane that is orthogonal to the longitudinal axis. The first angle and the second angle are both oblique with respect to the longitudinal axis of the shaft.

Abstract: A liquid droplet transporting apparatus includes a first electrode which is arranged on a surface of a substrate, a second electrode which is arranged apart from the first electrode on the surface of the substrate, an insulating layer which is arranged to cover each of the first electrode and the second electrode, and a liquid repellent property on a surface of the insulating layer changes according to an electric potential difference between the electrode and an electroconductive liquid droplet on the surface, and a third electrode which cooperates with the second electrode to detect the liquid droplet on the second electrode. Consequently, it is possible to transport a liquid droplet between two areas, and also to detect as to in which area out of the two areas, the liquid droplet exists.

Abstract: A header body for use in fluid circulation systems such as a hydronic heating system is provided in which the header body is configured to couple fluid flow to individual fluid circuits of the system. In one embodiment, the header body comprises a suction chamber with a fluid passage through which fluid flows as between one or more header bodies coupled together to form a manifold. A valve is disposed in the suction chamber, wherein in one example the valve comprises a valve body that is supported by portions of the suction chamber on opposite sides of the fluid passage. The valve body is configured with an aperture that is aligned with the fluid passage in a first and second operating state, one of which decouples the fluid circuit from the system.

Abstract: Fluid valves having an integral safety shut-off are described. An example valve assembly includes a body defining a flow path between an inlet and an outlet and opposing seating surfaces. The example valve assembly includes first valve trim including a first valve stem operatively coupled to a first closure member, the first closure member to engage one of the seating surfaces to control fluid flow between the inlet and the outlet during normal operation. The example valve assembly includes second valve trim including a second valve stem operatively coupled to a second closure member, the second closure member to engage the other one of the seating surfaces during a failure condition to restrict fluid flow between the inlet and the outlet. A surface of the second closure member to define a partial wall of the flow path during normal operation such that a profile of the flow path defined by the body and the second closure member is substantially continuous.

Abstract: A ball valve having a valve stem assembly disposed within a valve body through-hole. The valve body through-hole is encircled with secondary bores to accommodate components of the valve stem assembly. The valve stem assembly includes an upper bearing and lower bearing, which are seated into corresponding secondary bores and a stem seal that seats within a stem seal gland. The upper bearing further includes a step that interdigitates with the stem seal gland to form a stem seal groove when the valve stem assembly is disposed within the through-hole.

Abstract: The invention relates to a valve having at least one inlet chamber (1) and at least one outlet chamber (3) that can be connected to each other or blocked from each other by means of an actuator (5, 12, 13, 14, 15), having a control chamber (6) for controlling the actuator (5, 12, 13, 14, 15), characterized in that the control chamber (6) is divided into a first chamber (9) and a second chamber (8), wherein the first chamber (9) and the second chamber (8) are connected to each other.

Abstract: The invention relates to a vacuum valve for gas-tight sealing of a flow path, comprising at least one thrust rod, which has a cylindrical connecting section, and a closure plate which is removably mounted on the thrust rod and has at least one concave, semicircular first rod recess corresponding to the connecting section. A clamping piece, which has a concave, semicircular second rod recess corresponding to the connecting section, is adjustably mounted by means of a mechanical fixing element on the closure plate in such a way that the semicircular first rod recess and the opposite semicircular second rod recess define a cylindrical holding region which is adjustable in width and in which the cylindrical connecting section is detachably held.

Abstract: The present disclosure generally relates to a sprayer for a fluid delivery system. In one example, a sprayer for a fluid delivery system is provided. The sprayer includes a main body having a handle and a trigger. The sprayer also includes a spray head having a fluid input for receiving fluid material and a fluid output for spraying the fluid material. The spray head is removably couplable to the main body by rotating the spray head with respect to the main body to engage a connection component of the spray head to a corresponding connection component of the main body. The sprayer also includes a spray head locking mechanism on the main body that extends to engage a portion of the spray head.

Abstract: A micro-valve for controlling fluid flows and a sealing device for sealing off cavities in a microfluid system, in particular in a lab-on-a-chip system, and also a method for the production thereof. A valve body or a sealing element bears with a sealing surface against a sealing surface of a substrate, the valve body or the sealing element is pressed with the sealing surface thereof in a fluid-tight manner against the sealing surface of the substrate by means of a pressure-exerting ring, and the pressure-exerting ring is cohesively connected to the substrate. The pressure-exerting ring and/or the valve body or the sealing element are at least partially elastic.

Abstract: A method of making a one-way gas release valve for releasing gas pressure from within a coffee container comprises pre-oiling a relatively narrow dry strap of flexible material and laminating the pre-oiled dry strap between relatively wide ribbons of base and cover material with the dry strap overlying spaced vent patterns in the base material. Alternatively, the base material may be pre-oiled or both the base material and the dry strap may be pre-oiled. The dry strap and base may be made of PET and the cover may be made of mPET. Gas release valves are then die cut from the resulting web with each valve containing a vent pattern. Pre-oiling of the dry strap and/or the base can be accomplished through a roll metered process to insure that the oil is applied in precise amounts and with consistent thickness and coverage.

Abstract: A bite type pipe connection structure is used to connect a large diameter pipe that is previously set as a standard specification. The bite type pipe connection structure includes a spacer 71 that is used for connecting a small diameter pipe P3 and serves as insertion port adjusting means for adjusting a gap between the insertion port 16 and the small diameter pipe P3, a step portion 73 serving as a step portion for small diameter that regulates the position of the tip of the small diameter pipe P3, and insertion-through hole adjusting means for bridging a gap between the insertion-through hole for large diameter of a ferrule for large diameter and the small diameter pipe P3 to adjust the insertion-through hole. The insertion-through hole adjusting means is obtained by replacing the ferrule for large diameter 3 with a ferrule for small diameter 6. This makes it possible to connect the small diameter pipe P3 with a joint main body 1 attached to an apparatus.

Abstract: A pressure regulator valve has a housing that defines a fluid passage and a flat seat disposed around an opening of the fluid passage and exit ports. A pin with a raised conforming elastomeric embossment that contacts the seat when the valve is closed is axially disposed in the housing. The pin is biased to maintain the elastomeric embossment in contact with the seat to maintain the valve closed and control an opening pressure of the valve. Flow of fluid through and out of the pressure regulator valve housing is controlled through adjustment of a level of this biasing. The fluid flows across the flat seat and between the flat seat and the embossment when the valve is open in such a manner that the flow is generally laminar and such that the valve minimizes pressure gain at the onset of flow.

Abstract: Disclosed is a device that includes a choke valve. The choke valve may include a generally tubular throttling member having a sealing shoulder disposed in an inner volume of the throttling member, a plurality of openings configured to flow a fluid between the inner volume of the throttling member and an outer volume of the throttling member, and a flow-impeding recess disposed between the sealing should and the plurality of openings in the inner volume of the throttling member. The choke valve may also include a valve member disposed at least partially in the inner volume of the throttling member.

Abstract: A flow control valve in which corrosion is less likely to occur in the vicinity of a radial step portion in a gas passage of a housing and a method for manufacturing the same are provided. A flow control valve includes: a housing formed with a gas passage including a first cylinder member accommodating portion, a second cylinder member accommodating portion, and a radial step portion; a first cylinder member accommodated in the first cylinder member accommodating portion; a second cylinder member accommodated in the second cylinder member accommodating portion; and a valve body that is rotatably arranged inside the first cylinder member and the second cylinder member in the radial direction. The housing is formed of cast iron. At least surfaces of the first cylinder member and the second cylinder member are formed of a highly corrosion resistant material.

Abstract: A valve having a metal insert with a fluid passage formed in the metal insert. A composite valve body is disposed at least partially around the metal insert and having at least one port in fluid communication with the fluid passage with the metal insert. A valve member is partially disposed in the metal insert and operable to control the fluid flow through the fluid passage of the metal insert and parts of the valve body.

Abstract: The valve bonnet assembly (1) includes a bonnet stem and a valve member supported on the stem. Rotation of the stem (16) axially moves the valve member (12) along the stem axis into and out of sealing engagement with a seat (11). The bonnet stem includes multiple start threads, and the thread pitch divided by a number of starting threads is greater than or equal to 6 and less than or equal to 9.

Abstract: A subsea assembly (11) comprises a valve assembly (12) and a winch assembly (8) mounted relative to the valve assembly (12). The valve assembly (12) comprises: a valve block (22) defining a throughbore (24); a valve member (26) mounted within the valve block (22) and adapted to be moved between open and closed positions to selectively provide a fluid barrier within the throughbore (24); and first and second valve stems (29, 31) extending from respective sides of the valve member (26) and through a side wall of the valve block (22), each valve stem (29, 31) including a sealing region in fluid communication with the throughbore (24), wherein a cross-sectional area of the sealing region of the first valve stem (29) is substantially equal to the cross-sectional area of the sealing region of the second valve stem (31).

Abstract: A control valve comprising a plurality of interchangeable valve body modules, each module having a main valve cavity and a plurality of separate cross valve communication ports communicating; and at least one interchangeable gasket disposed between adjacent modules and configured to individually communicate the main valve cavity and the communication ports between adjacent valve body modules, wherein the gasket is further configured to selectively communicate between the main valve cavity and a selected one of the cross valve communication ports. In one embodiment, each valve body module further includes a passage communicating with the main valve cavity. In this case, the gasket may be configured to selectively communicate between the passage and the selected one of the cross valve communication ports, thereby selectively communicating between the main valve cavity and the selected one of the cross valve communication ports through the passage by selective orientation of the gasket.

Abstract: In a four-way valve having a simple structure, even if a high-temperature refrigerant and a low-temperature refrigerant flow close to each other, heat loss between both refrigerants is suppressed. The valve comprises a housing member including a valve chamber, a valve seat including a bearing surface portion located in the valve chamber, a first channel through which a high-temperature fluid flows and a second channel through which a low-temperature fluid flows at a predetermined time, including openings adjacent to each other at a bearing surface portion of the valve seat, passing through the valve seat and extending outside of the valve chamber, and a valve element moving to the bearing surface portion of the valve seat. A thermal resistor portion suppressing heat transfer between these channels is located near the openings, between the first and second channels.

Abstract: Valve body comprising a seat designed to be closed off by a shutter, a main duct extending along a first axis and passing through the seat, and a secondary duct opening into the main duct at a junction and extending along a second axis that is not parallel to the first axis. The secondary duct comprises a restriction at the junction between the said secondary duct and the said main duct.

Abstract: The sampling valve comprises a valve body that is movable in a valve housing between a closing position and an opening position of the sampling valve, and is characterized in that the valve body comprises an outlet bore for the sample to be taken, the outlet bore continuously increasing in size towards the free end of the valve body, and that the lower edge of the outlet bore is sloping downwards towards the free end. After a sample has been taken, there will be no drops remaining in the outlet bore, whereby a source of contamination for a sample taken that has so far been encountered frequently is now eliminated.

Abstract: Embodiments of the invention provide a fill valve for use in a livewell of a boat. The fill valve includes an intake and a valve housing coupled to the intake. The valve housing includes a rounded half-sphere shaped front wall coupled to a substantially flat back wall. The front wall includes one or more inlet openings in fluid communication with the intake. The fill valve also includes a valve switch positioned in the valve housing to switch between a first position allowing fluid communication between the inlet openings and the intake and a second position providing a substantially liquid-tight seal between the inlet openings and the intake.

Abstract: A valve stem seal including a radially outwardly extending flange that includes one or more circumferential grooves to allow the flange to flex and lay flat against a support surface and protect the flange from fatigue.

Abstract: A method of diagnosing pressure boundary integrity of a control includes choosing a control valve having a valve body, determining a velocity profile within the control valve, choosing an area of the velocity profile, choosing a surface on an exterior of the valve body at or adjacent to the area, forming a pad on the exterior surface overlying the point, applying a testing device to the pad, and measuring a reference thickness of a wall of the valve body through the pad using the testing device. The method further includes applying the testing device to the pad at a time subsequent to measurement of the reference thickness, measuring a first thickness, and comparing the first thickness to the reference thickness. The comparison of the first thickness to the reference thickness can be used to calculate the amount of valve body wall lost during using and the remaining life of the control valve.

Abstract: Methods and apparatus to load a valve packing are described. An example apparatus to load a valve packing includes a load assembly having a biasing element disposed between a valve packing flange and a stop flange to provide a load to a seal assembly. The packing flange is adjustable relative to the stop flange to adjust the load to be applied to the seal. A first guide member coupled to the packing flange or the stop flange provides a first predetermined distance between the packing flange and the stop flange. The first guide member provides an indication of a first predetermined load to be provided by the load assembly when the packing flange and the stop flange are spaced at the first predetermined distance provided by the first guide member.

Abstract: A hydraulic medium insert for a control valve in a hydraulic actuator which has a tubular guide sleeve for guiding a control piston, which is disposed in a receptacle, which has passage openings for the hydraulic medium, which are disposed in the guide sleeve and separated by webs. A plastic part is disposed on the exterior side of the guide sleeve and has sealing webs, which are supported on the inside on the webs of the guide sleeve, which separate the passage openings, and press against the inside of the receptacle to form a seal on the outside.

Abstract: A combination flow control and reverse flow check valve provides a compact valve unit for controlling the flow of fluid in a downstream direction and limiting undesired backflow of liquid into a source such as a reservoir. The flow control and reverse flow check valve may be provided as a unitary member having a housing with an upstream end configured for mounting to the liquid source, a fluid conveying channel within the housing, and a check element positioned in the channel between the flow control valve, such as a ball valve, and a seat which is complementally configured with the check element to normally seal against backflow. A blocking element may be provided to prevent interference of the check element with the operation of the flow control valve while permitting liquid to flow in an intended downstream direction.

Abstract: By pouring, by means of pressure, melted liquid of magnesium or magnesium alloy into a hollow portion which is formed using a casting mold, a valve body where a channel groove for hydraulic oil for use in a speed change operation of the automatic transmission is formed. In the above, the channel grove for the hydraulic oil is formed due to a convex portion which is formed on the mold so as to project into the hollow portion. As the magnesium has small heat capacity, variation of the temperature of the mold during the cooling and heating cycle can be suppressed. Moreover, as the magnesium melted liquid has no reactivity with respect to the casting mold, the convex portion is not deteriorated. This allows employment of a mold having a thinner convex portion formed thereon, and therefore formation of a valve body having a narrower channel groove.

Abstract: A stemmed control valve having a housing containing a first packing assembly that is compressively loaded externally of the housing, and a second packing assembly that is independently compressively loaded in a fixed manner internally of the housing.

Abstract: The universal valve disclosed herein operates as both an actuated and non-actuated valve embodiment, both of which are assembled using a common universal valve body. When functioning in the actuated valve embodiment, the invention includes components which open a small orifice to provide pressurization or de-pressurization before the disk is lifted off the seat and the poppet valve is opened.

Abstract: A valve comprising a first pan (10?) defining a first array of apertures (20?) and a second part (50) defining a second array of apertures (60?), the first pan (10?) being moveable relative to the second part (50) between a first configuration in which passage of a fluid through the valve is substantially prevented and a second configuration in which passage of fluid is allowed. In one embodiment, the first pan (10?) comprises a flexible plate-like member configured to engage a sealing face of the second part (50) when in the second configuration and lock in the second configuration in response to a pressure differential across the valve. The plate-like member is sufficiently flexible to conform to a profile of the sealing face in response to a pressure differential across the valve.

Abstract: In a vacuum valve composed of a main valve portion that opens and closes a vale seat in a flow path connecting two ports by a valve member, and an operating portion that performs an opening and closing operation for the valve member, the housing of the main valve portion is assembled by joining the two port members with a cylindrically shaped housing main body formed by a squeezing process for a plate material made of metal, or a ring-shaped material made of the metal. In an end portion of the housing, a flange-shaped attaching portion that is bent inward is formed. The operating portion is attached onto the attaching portion via a ring-shaped supporting seat member. A sealing member is sandwiched between a ring-shaped supporting plate and the attaching portion. Both ends of a bellows are respectively connected to the supporting plate and the valve member.

Abstract: Metal coated organic polymer compositions are useful as vehicular transmission parts. Such parts may have lighter weight, and/or superior corrosion resistance, and/or be more easily fabricated than similar conventional transmission parts.

Abstract: The present invention provides a check device and a check valve equipped with the check device. The check device is made of a hard plastic with slight flexibility to be mounted in a check valve with an annular wall and an opening. The check device has a separating rib, an inner plate and an outer plate on opposite ends of the separating rib. The inner plate has several bores and a first contact face to touch a side of the wall, and the outer plate has a first contact face to touch an opposite side of the wall. A flow is cut off when the first contact face of the inner plate presses the first side of the wall, and a flow runs through the check device when a second contact of the outer plate presses a second side of the wall of the base.

Abstract: The invention relates to a valve of an arbitrary type, comprising a valve body (4) for setting an opening cross-section through which pressure medium flows and a barrier body (22) against or around which pressure medium flows, characterized in that the barrier body (22) is attached to the valve body (4). Due to the flow against or around the barrier body (22), a force is generated, particularly in the opening direction of the valve body (4).

Abstract: A bypass valve assembly for a generator includes a spring cover with a flange which extends in a radial direction from a spring cover body. The spring cover body defines an overall length dimension, the overall length dimension to an end of the spring cover body to the flange dimension defines a ratio between 1.6:1-1.2:1. The bypass valve assembly also includes a valve sleeve with a multiple of windows. Each of the multiple of windows includes a longitudinal edge which defines a longitudinal edge radius and corner radius.

Abstract: A valve body, e.g. a valve body adapted to be disposed in a connector to be connected to a catheter, has an opening/closing part which opens upon inserting a member into the opening/closing part and which closes upon withdrawing the member from the opening/closing part. The valve body includes a main body part made of a silicone rubber and a surface layer disposed on a surface of the main body part. This surface layer serves as a sliding surface which, when a guide wire has been inserted into the opening/closing part, slides on the guide wire. The surface layer is constituted mainly of silicon oxide and hence improves the sliding properties of the guide wire. Thus, the valve body is reduced in the resistance of sliding on the guide wire.

Abstract: The present invention relates to a valve device comprising an elastic valve insert and a reception means for the valve insert. It further relates to a valve insert, an external functional means and a treatment apparatus, as well as a manufacturing method and methods in which the valve device of the invention may be employed.

Abstract: A seal assembly for use with valves is described. An example seal assembly includes a first seal and a second seal opposite the first seal. The first and second seals are to sealingly engage a closure member of a valve and a sealing surface opposite the closure member. A spacer ring is disposed between the first and second seals to prevent the first and second seals from contacting each other. Additionally, the spacer ring is sized so that the spacer ring does not contact the closure member or the sealing surface.

Abstract: Fluid valves having adjustable sealing characteristics are described. An example fluid valve includes a valve body having a flow aperture to enable the flow of fluid therethrough. Additionally, the fluid valve includes a seal surrounding the flow aperture and a sealing member having a shaft extending therefrom. The sealing member is movable relative to the seal and the flow aperture to control the flow of fluid through the flow aperture. Further, the fluid valve includes a support body movably coupled to the valve body and having a passage to receive the shaft. The support body holds the shaft and the sealing member to enable rotation of the shaft and the sealing member relative to the valve body and the seal, and at least one of the support body or the valve body includes at least one elongated opening to enable movement of the support body relative to the valve body to change an amount of engagement between the sealing member and the seal when the fluid valve is in a closed position.

Abstract: An object of the invention for a valve device having an inclined valve body is to suppress pressure loss at a valve opened condition to a smaller amount. The valve body is composed of a disc shaped valve member for closing a fluid passage, a first supporting portion provided at an outer periphery of the valve member and connected to a first shaft member, and a second supporting portion provided at another outer periphery of the valve member and connected to a second shaft member. The valve body is formed of a press-molded metal plate and forms a Z-shape when viewed in a direction parallel to a surface of the valve member.