Abstract: A unitary valve seat has a mesh ring with an extensible annular collar connected to the mesh ring, and a resilient layer made of polyurethane which is external to the mesh ring.

Abstract: A valve design that enables a positive shaft seal to be obtained in an inexpensive manner by reducing the need for close tolerances heretofore required in prior art designs. This unique valve design employs a shaft seal that is adapted for transverse and/or angular movement during assembly of the valve for aligning to the shaft at an alignment position in which it is held after assembly of the valve by a holding device such as a seal nut or spring.

Abstract: A valve assembly for use in high pressure pumps is designed for easy replacement for example in the suction inlet here for a high pressure pump. The design utilizes a combination of screw threads and a locking member to provide structural strength for the valve to be placed in and withdrawn from the inlet bore.

Abstract: A thrust plate for a butterfly valve includes a thrust plate body that defines a recess. The recess extends between a bottom thrust surface, side walls and an open top. A wear-resistant coating is located on the bottom thrust surface.

Abstract: The disclosed embodiments include systems and methods for retaining a seat insert of a ball valve in place within a seat ring of the ball valve. In particular, the seat insert is an annular ring having a tapered section on an outer wall of the annular ring. The tapered section of the seat insert is configured to mate with a shoulder in an outer surface of a profiled groove of the seat ring. The seat insert snaps into the profiled groove with the shoulder, thereby preventing axial movement of the seat insert with respect to the profiled groove of the seat ring. In addition, a locking ring also fits within the profiled groove of the seat ring to prevent axial and radial movement of the seat insert with respect to the profiled groove of the seat ring. More specifically, once the seat insert has been snapped into place within the profiled groove of the seat ring, the locking ring is also inserted into the profiled groove of the seat ring.

Abstract: A valve 14 that includes a valve seat 20 and a flap 22 that has a surface 57 that has been ablated. Through use of an ablated flap, the flap characteristics can be better fashioned to achieve desired valve performance. The valve flap can be fashioned to remain closed under any orientation but also to open with minimal force or pressure from the flow stream. A valve having these qualities provides a valve can operate more efficiently, which may be particularly beneficial when used one respiratory masks where the valve is powered by the wearer.

Abstract: A valve (100) is provided. The valve (100) includes a base portion (10). The base portion (10) includes one or more solenoid coils (101A, 101B) and one or more cartridge receivers (104, 104?) coupled to the one or more solenoid coils (101A, 101B). The valve (100) also includes one or more removable cartridges (103). A removable cartridge (103) of the one or more removable cartridges includes a magnetic core (210) and a movable armature (211). A removable cartridge (103) of the one or more removable cartridges is adapted to removably engage the one or more cartridge receivers (104, 104?).

Abstract: A method of producing a valve includes the steps of forming a channel in a silicon substrate, with the channel having an opening penetrating an entire thickness of the silicon substrate, and forming, by patterning, a metal layer on one surface of the silicon substrate without closing the opening of the channel. In addition, a low melting point metal member is deposited so as to cover at least a part of the metal layer and also to block the opening of the channel.

Abstract: A method of forming a leaflet of a prosthetic valve includes placing a first piece of material on a working surface. A leaflet mold is placed on the first piece of material, and provides a outer peripheral shape comprising a curved portion. A second piece of material is placed over the first piece and the leaflet mold. The first and second pieces of material are stitched to one another along at least a portion of the curved portion of the leaflet mold. The leaflet mold is removed from first and second pieces of material.

Abstract: An apparatus and method for automating the operation of a manual control valve upon the occurrence of a specified condition includes a valve handle engaging member mounted on an operating shaft turned by a motor held by a housing or support which is mountable to the manual valve body or associated conduit. The motor is operated by a motor control circuit when a sensor detects the condition. The structure and method of mounting may include a quick disconnect mechanism. The control circuit may operate at different power levels depending on the state of the sensor.

Abstract: A method of manufacture of a power assisted steering control valve; said control valve including a pinion shaft, an input shaft and a torsion bar; said method including the steps of: (f) receiving into clamping fixtures of an assembly machine a pre-assembled loose assembly of said pinion shaft, said input shaft and said torsion bar, (g) establishing and recording a predefined rotation clearance between a shoulder of said pinion shaft and an end of said input shaft, (h) rotating said input shaft in opposing directions between rotation limiting stops ?o as to establish a midpoint of rotation of said input shaft relative to said pinion shaft, (i) pressing a first end of said torsion bar into said input shaft to form a locked together assembly of said input shaft and said torsion bar, (J) axially advancing said assembly of said input shaft and said torsion bar into said pinion shaft so as to press a second end of said torsion bar into a locked together assembly with said pinion shaft.

Abstract: A valve comprises a valve body having a cylindrical bore and at least two fluid passages connected to the cylindrical bore. A rotating body has at least one means for allowing fluid flowing through the fluid passages, and at least one means for blocking fluid flowing through the fluid passages. At least one sealing is arranged inside said cylindrical bore, said sealing having an outer surface parallel with the axis of the cylindrical bore, and an inner surface parallel with the lateral surface of the rotating body. The rotating body comprises a frusto-conical shape.

Abstract: In an embodiment of the present invention, a valve seal for a ball valve includes a ball configured to mate with a tail piece, an annular seat ring to facilitate the mating of the ball with the tail piece, the seat ring having an angled wall having a first groove for accommodating a first seal and a second groove for accommodating a second seal, the first seal having a different Young's modulus from the second seal.

Abstract: The invention relates to a thermo-pneumatic actuator having a cavity defined by walls and being hermetically sealed, which is inflated with a working medium that alters the gas pressure thereof when a temperature change occurs. A wall region of the cavity is constructed as a ductile membrane, which can be deflected in at least two working positions located on both sides of a neutral position, in which the membrane is curved in opposite directions to one another. In order to alter the gas pressure in the cavity, and to adjust the membrane from one working position to the other working position, a tempering device is heat-conductively connected to the working medium. In the neutral position, the membrane is compressively loaded such that respectively, it maintains its position in both working positions if no outside force impacts the membrane.

Abstract: Method and drill string valve assembly for closing a conduit through which a high pressure fluid flows. The drill string valve assembly includes first, second and third portions forming an elongated housing having an inside cavity; and a drill string valve provided inside the cavity, to extend from the first portion to the third portion. The second portion has an extension that fits inside a groove of the third portion and prevents the second portion to linearly move relative to the third portion and also allows the second portion to rotate relative to the third portion, and the second portion has a distal region provided with a thread configured to engage a corresponding thread of the first portion such that a rotation of the second portion relative to the third portion determines a tight connection between the first portion and the second portion.

Abstract: A seal ring assembly has a carbon member extending between spaced ends, and with a step at an outer periphery. A ring is received in the step to maintain spaced ends of the carbon member towards each other. A valve disc and shaft, a butterfly valve, and a method of installing a carbon ring seal are also disclosed. In a separate feature, a valve housing for a butterfly valve includes a first housing portion defining a flow passage, and a second housing portion extending integrally from the first housing portion, and defining a space to mount a valve shaft.

Abstract: The present invention relates to a multi-way valve for use in medicine or medical technology, having at least one basic housing through which a medium can flow in sections, and having an actuator which is held in said basic housing so as to be rotatable about a central axis, wherein the basic housing has at least two connection points for the inflow and outflow of the medium and forms an actuator receptacle which has a peg arranged concentrically with respect to the central axis and which has, on the inner side of the basic housing, a radially encircling cutout, and wherein the actuator has a control element, a substantially hollow cylindrical section which receives the peg of the actuator receptacle at least in sections, at least one throughflow opening for the fluidic connection between two connection points, and at least one radially encircling moulding on the outer side of the cylindrical section, and wherein the peg of the actuator receptacle has at least one counterbearing for the actuator to form a sea

Abstract: The present invention provides a valve for water faucet including an outlet pipe seat having a connecting seat via a first injection molding, an outlet pipe connector assembled to the connecting seat, and a hot water valve seat and a cold water valve seat integrally wrapping around the outlet pipe seat and the outlet pipe connector via a second injection molding. Each water valve seat includes a copper pipe sleeve secured to a water inlet pipe. The outlet pipe seat is formed with leak-proof rings on an outer surface thereof. Each water valve seat is formed with a water inlet pipe having a positioning post thereon and an annular wall set around the water inlet pipe. The copper pipe sleeve defines a positioning hole for receiving the positioning post when the copper pipe sleeve is positioned in the chamber between the annular wall and the water inlet pipe.

Abstract: A method of assembling an electromagnetic gas valve having a first body, a second body, a unit comprising a valve disc and stem assembly coupled to a moveable insulating structure having a projecting member, an electromagnet assembly comprising a magnet fixed within the second body and a coil wound on a moving part with a cavity adapted to receive the projecting member, the first body having a gas inlet, a gas outlet and a through hole disposed between the gas inlet and outlet. In one implementation the insulating structure is coupled to the electromagnetic assembly by introducing a fluid under pressure into the gas outlet or gas inlet to act upon the unit to cause the projecting member to move in a direction towards the inside of the second body and into the cavity of the moving part of the electromagnet assembly.

Abstract: A breathing assistance device includes a gas regulating valve (1300). The gas regulating valve is operated by a linear actuator (1330). The linear actuator may include a movable member that moves an obstruction member between an open position and a closed position. The linear actuator is isolated from a gas flow path through the valve.

Abstract: An emitting pipe boring method, for forming an ejection hole on a drip pressure reducing hose above a discharging portion of at least one drip which is adhered to an inside of the drip pressure reducing hose and includes an introducing portion, a pressure reducing portion and a discharging portion, includes a first step for forming an upward projection to be higher than a height of the drip at the discharging portion of the drip, a second step for forming a protruding portion on the drip pressure reducing hose by the upward projection of the drip when the drip is adhered to the inside of the drip pressure reducing hose, and a third step for forming an ejection hole of the drip pressure reducing hose by horizontally cutting an upper portion of the protruding portion formed on the drip pressure reducing hose through the second step.

Abstract: A parts assembly includes a housing including a first part assembly hole on which a first apparatus component is assembled, the first apparatus component being fixed to the housing by a caulking for forming a caulking portion by a deformation of a bearing surface of the housing on which the first apparatus component is seated. The housing includes a second part assembly hole provided in the vicinity of the caulking portion and on which a second apparatus component is assembled. The housing includes a sacrificial deformation portion deformed by a force applied to the housing when the bearing surface is deformed by the caulking, the sacrificial deformation portion attenuating a force propagated to a portion including the second part assembly hole where the second apparatus component is assembled.

Abstract: A liner assembly adapted to line a valve body of a control valve comprises a sleeve, a liner, and a retainer. The sleeve has an inner surface and an outer surface. The inner surface defines a bore. The outer surface is adapted to be disposed in engagement with the outlet of the control valve. The liner is slidably disposed within the bore of the sleeve. The retainer is in engagement with the liner to removably secure the liner within the sleeve.

Abstract: A method includes coupling a cylinder head to a cylinder block. A valve member is then moved into a valve pocket defined by the cylinder head such that a first stem portion of the valve member engages an actuator. A first portion of the biasing member is then disposed against a second stem portion of the valve member, the second stem portion being opposite the first stem portion. An end plate is then coupled to the cylinder head such that a second portion of the biasing member engages the end plate.

Abstract: A valve assembly comprises a valve body comprising a plug chamber. A static seal is disposed adjacent an inner sidewall of the plug chamber, and a plug comprising a plug head is moveably positioned within the plug chamber, the plug head being configured to contact the static seal only when the plug is adjacent to a seat ring. Methods of using a valve and methods of forming a valve assembly are also disclosed.

Abstract: A butterfly valve for controlling the flow of fluid within a bore, including a butterfly and at least one ring extending at least one of substantially and completely around a perimeter of the butterfly and adapted to develop an expansion force in the radial direction when the at least one ring is in a contracted state with respect to the radial direction, wherein the at least one ring is secured to the butterfly in the contracted state and radial expansion due to the developed expansion force of the at least one ring is effectively restrained, wherein the butterfly valve is adapted to operate, when placed in a bore, without friction or substantially without friction between the at least one ring and the bore when the butterfly valve is placed in a closed position within the bore.

Abstract: In relation to a flow rate control valve and an assembly method therefor, first and second ports are connected respectively to a body constituting the flow rate control valve. A valve mechanism capable of controlling the flow rate of a pressure fluid is disposed in a central portion of the body. The valve mechanism includes a valve holder, which is press-fitted into a second cylindrical section of the body. A needle valve is screw-engaged for advancement and retraction in the interior of the valve holder, and a seat ring, which is formed by press molding, is press-fitted onto a lower portion of the valve holder and connected coaxially therewith.

Abstract: A label type degassing valve with a vented flexible cover and a base with a central aperture. The base is adhered to the cover with an adhesive layer or coating that is positioned and shaped not to interfere with the vents. The vents are generally positioned off center in the cover. For the adhesive coating, there is a deactivated central region of the coating facing the base so that no part of the deactivated central region is adhered to the base and at least one of the vents is cut through the cover and through the deactivated central region.

Abstract: Apparatus and methods for removing valve cover components includes a torque transfer tool that mates with an extending portion of the valve cover assembly and has a multi-faceted segment to receive a torque-supplying wrench. A hydraulically-actuated wrench has a head with a multi-faceted portion that engages the corresponding multi-faceted segment of the torque transfer tool. The wrench's hydraulic cylinder rotates the wrench head upon actuation. The multifaceted segments can be splined. Also disclosed is a reaction tube against which the wrench can be braced prior to actuation of the cylinder.

Abstract: One or more valves associated with a controlled machine process may be isolated from one or more remote isolation stations. For isolation, a manual switch is activated that are coupled to a safety relay. This relay is, in turn, coupled to a coil that removes power used to control the valve to be isolated. An operator-perceptible indication may be provided by monitoring a parameter representative of the valve state, such as pressure downstream of the valve. Such indication may be provided at each remote isolation station. The arrangement allows for lock-out of valves by remote operation.

Abstract: A seal assembly is provided for a rotary ball valve having a top-mounted bonnet, thereby allowing the seal assembly to be installed and removed without removing the valve from the pipeline. In an embodiment, the seal assembly may include a seal ring disposed within the valve interior and biased toward the ball element of the valve. A seal carrier may be disposed between the seal ring and the valve body, and the seal carrier may be removably secured to the valve body by a plurality of bolts disposed in the valve interior. A primary leak path may exists between the seal ring and the seal carrier and a secondary leak path may exists between the seal carrier and the valve body. A first and second auxiliary seal may prevent fluid flow through the primary and secondary leak path, respectively.

Abstract: A seal assembly is provided for a rotary ball valve having a top-mounted bonnet, thereby allowing the seal assembly to be installed and removed without removing the valve from the pipeline. In an embodiment, the seal assembly may include a seal ring disposed within the valve interior and biased toward the ball element of the valve. A seal carrier may be disposed between the seal ring and the valve body, and the seal carrier may be removably secured to the valve body by a plurality of bolts disposed in the valve interior. A primary leak path may exist between the seal ring and the seal carrier and a secondary leak path may exist between the seal carrier and the valve body. A bellows seal may prevent fluid flow through the primary leak path, and an auxiliary seal may prevent fluid flow through the secondary leak path.

Abstract: The present invention relates to a ball valve isolator (5) that includes a housing (15), a ball valve (60), a first isolator (40), and a second isolator (41). The housing (15) is provided with a first flow passage (29) located between an inlet (30) and an outlet (31). The ball valve (60) that includes a ball portion (63) that is located in the first flow passage (29). The ball portion (63) defines a second flow passage (65) that is aligned with the first flow passage (29) when the ball valve (60) is actuated to an open position. The first isolator (40) is located, at least in part, within the housing (15) and substantially blocks the inlet (30) when the first isolator (40) is actuated to a closed position. The second isolator (41) is located, at least in part, within the housing (15) and substantially blocks the outlet (31) when the second isolator (41) is actuated to a closed position.

Abstract: A rotary flow valve apparatus and associated systems and methods, comprising: a front plate comprising a plurality of fluid entry ports running therethrough; a rear plate comprising one central fluid exit port running through a substantial center thereof and P peripheral fluid exit ports running through a substantially circumferential periphery thereof; P flow selector bars integrally connecting the front plate with the rear plate and fixing the front plate relative to the rear plate; P inter-bar flow channels defined between rotationally-adjacent pairs of the flow selector bars; and a selector cylinder seated over and freely and continuously rotatable around the flow selector bars and relative to the front and rear plates.

Abstract: A valve body defines a valve stem opening. A valve stem comprises an enlarged portion greater than the valve stem opening to thereby secure the valve stem within the valve body by limiting radially outward movement of the valve stem with respect to the valve body. A rotary member comprise upper and lower bosses. Upper and lower split trunnions, with split components that can be inserted from opposite sides of the valve body, are used to rotationally support the upper and lower bosses to permit rotation of the rotary member while preventing axial movement of the axial flow path of the valve.

Abstract: A hydraulic directional valve which has a valve housing and a filter element. At least one groove encircles the valve housing and the filter element is arranged in the groove and has at least one frame element and a filter fabric which is firmly connected to the frame element. The groove has a groove base and two side walls which extend substantially in the radial direction and circumferential direction.

Abstract: The mechanical coupling of an actuating element of a valve to a connection element of an actuator is accomplished with the actuating element able to be displaced along a z-axis for the purpose of adjusting the valve and the connection element, at a corresponding orientation of the actuator, can likewise be displaced along the z-axis relative to the valve by the actuator.

Abstract: Needleless access port valves are generally discussed herein with particular discussions extended to needleless access port valves having a pliant valve piston and/or plug that exudes silicone oil when stressed or squeezed while providing antimicrobial agents within and on the surface of the piston and/or plug. The pliant valve piston may have an integrally formed plug and one or more ports or a separately formed plug located inside a plastic housing. The plug cooperates with a nozzle on the inlet connector assembly to form a slip port or a Luer inlet, which can open when exerted by force to permit flow or closes when the force is removed.

Abstract: A control spool for spool valves includes a tube having an outer circumference, and one or more rings and/or sleeves positioned on the outer circumference of the tube. The one or more rings and/or sleeves each defines at least one circumferential edge that forms at least one control edge.

Abstract: An electromagnetic actuating unit for a hydraulic directional control valve and to a method for the assembly thereof. The actuating unit has a coil for generating a magnetic field, a yoke unit with a yoke and a yoke plate, and a pole core unit with a pole core and a housing for conducting a magnetic flux, and an armature unit which is arranged in the magnetic field of the coil and has an armature and a pressure pin as an actuator. The armature unit can be displaced in the direction of the longitudinal axis thereof in a first bearing point in the yoke unit and in a second bearing point in the pole core unit. At least one of the hearing points can be displaced in the radial direction during assembly of the actuating unit and can be fixed after a coaxial orientation of both bearing points.

Abstract: Needleless access port valves are generally discussed herein with particular discussions extended to needleless access port valves having a pliant valve piston and/or plug that exudes silicone oil when stressed or squeezed while providing antimicrobial agents within and on the surface of the piston and/or plug. The pliant valve piston may have an integrally formed plug and one or more ports or a separately formed plug located inside a plastic housing. The plug cooperates with a nozzle on the inlet connector assembly to form a slip port or a Luer inlet, which can open when exerted by force to permit flow or closes when the force is removed.

Abstract: Methods and apparatus to couple valve shafts and closure members are described. An example coupling apparatus includes an expansion pin to be disposed in a bore defined by a first aperture of a valve shaft and a second aperture of a closure member. The first and second apertures are coaxially aligned when the valve shaft is coupled to the closure member. A first tapered pin is disposed in a first opening of the expansion pin adjacent a first end of the expansion pin and a second tapered pin is disposed in a second opening of the expansion pin adjacent a second end of the expansion pin. The first tapered pin causes the expansion pin to expand at a first location when the first tapered pin is disposed in the first opening and the second tapered pin causes the expansion pin to expand at a second location different than the first location when the second tapered is disposed in the second opening.

Abstract: Disclosed is a solenoid valve, the valve housing of which has a thick-walled tubular body (4) for fastening in a valve receiving bore (11), which thick-walled tubular body (4) is connected to thin-walled sleeve (1). The thin-walled sleeve (1) has a radially circumferential collar (2) which makes contact with an inner shoulder (3) in the tubular body (4), and for the tubular body (4) to have a recess (5) at a radial spacing from the inner shoulder (3) The radial spacing is selected in such a way that a plastically deformable banded collar (6) remains between the inner shoulder (3) and the recess (5) on the tubular body (4). As a result, a frictional, tight connection of the tubular body (4) with the sleeve (1) is possible.

Abstract: An improved valve assembly having an integral single piece housing (1) having an inlet (15), an outlet and defining an inwardly extending wall forming a valve seat (3); a valve member (4) moveable within the housing (1) between a closed position and an open position and a seal (11) to form a fluid tight seal between the valve member (4) and the valve seat (3) when the valve member is in the closed position. The seal (11) also acting to retain the valve member (4) within the housing (1) and in which the housing defining end portions which extend axially away from the valve member (4) at any position of the valve member between the open and closed positions.

Abstract: A pressure relief valve suitable for limiting fluid pressure in a common rail of a fuel injection system comprises a first housing part having a first through-bore with a first segment, a second segment and the valve seat defined therebetween. A second housing part is screw fastened with the first housing part and includes a second through-bore disposed coaxially to the first through-bore. An overall rod-shaped valve member is axially displaceable within the second segment. A spring biases the valve member towards the valve seat. A portion of the valve member opposite of the valve seat includes a shaft having a terminal end formed with a non-round cross-section configured such that a tool inserted through the second through-bore and engaging the non-round cross-section prevents the terminal end, and thus the valve member, from rotating relative to the first housing part when the first and second housing parts are screwed together.

Abstract: A pressure relief valve (10) includes a housing (12) that has a side wall (18) that defines an air flow passage (24). A valve element (14) has a closed condition that prevents air flow through the air flow passage (24) and an open condition that permits air flow through the air flow passage (24). A first insert (120) is connected to the valve element (14). A second insert (130) is connected to the side wall (18). The first insert (120) and the second insert (130) cooperate using magnetic forces to urge the valve element (14) to the closed condition. At least one of the first insert (120) and the second insert (130) is positioned within the air flow passage (24).

Abstract: A control valve includes a valve body, a valve stem, and a control element. The valve body receives the stem and includes a packing box housing a packing set. A packing follower includes a bore sized to receive the stem and includes an upper portion, a lower portion, and a bearing surface, the lower portion sized to extend into the valve bonnet to engage the packing set to apply a first compressive force to the packing set, the upper portion including threads and having an upper counterbore housing a secondary seal ring. A nut operatively engages the threads of the upper portion of the packing follower, the nut positioned to apply a second compressive force to the secondary seal ring, and a spring is positioned between the packing flange and the bearing surface of the packing follower, wherein the first compressive force is independent of the second compressive force.

Abstract: The present invention provides an air intake valve for an aircraft and a method for the production of an air intake valve. The air intake valve has an opening region for letting ambient air through into a fuselage inner region of the aircraft and a flap for opening and closing the opening region, the opening region and the flap each having a shape which is capable of forming air vortices on edges of the opening region when ambient air flows through the air intake valve.

Abstract: A method of attaching a tubular member, having an attachment flange defining a plurality of bolt holes, to a valve fitting comprising a valve body having a loading surface and a valve flange. The valve flange includes a flange, defining a plurality of bolt holes, for engaging the attachment flange and a plurality of axial loading members movable between a first retracted position and a second extended position protruding to bear on the loading surface. The method includes threading a threaded end of the valve flange onto a threaded end of the valve body, rotating the valve flange until the bolt holes of the valve flange are geometrically aligned with the bolt holes of the tubular member and moving at least one of the axial loading members into its second extended position to bear on the loading surface to impart an axial tensile force between the valve body and valve flange.

Abstract: The present invention provides a solenoid valve wherein a valve sleeve and a solenoid case can easily be formed coaxially and manufacturing costs are reduced. The solenoid valve of the present invention comprises a valve sleeve 41 provided with a spool 60 axially movable in said valve sleeve 41, a solenoid case 21 mounted to a case mounting groove 43 formed near an axial rear end of said valve sleeve 41, and a molded body 23 mounted inside said solenoid case 21 and provided with a coil 22 in said molded body 23, and a case opening portion 25 formed at an axial end of said solenoid case 21 is engaged with said case mounting groove 43, and a concave portion 29 is formed at an axial end of said molded body 23 and said axial rear end of said valve sleeve 41 is fitted to said concave portion 29.