Abstract: A trim insert for a choke assembly is disclosed, wherein the trim insert is a tubular member with a substantially constant inner diameter. A first end of the device is positioned within an adjacent upstream sleeve and a second end is sealingly retained within the discharge channel of the choke assembly. A flange coaxially retains the tubular member between the sleeve and a shoulder of the choke body. The trim insert is made of an erosion resistant material, such as tungsten carbide, hardened steel, or a ceramic. Additionally, the inner surface of the tubular member may be coated with a hardening compound to provide additional erosion resistance.

Abstract: A protective collar for protecting the outside drop of a manhole having a U shaped housing extending from the outside wall of the manhole around the outside drop pipes and back to the outside wall. The protective collar having flanges at each end of the U shaped collar for attaching the collar to the outside wall of the manhole. The U shaped collar, having grooves on the inside for attaching rings, which surround the outside drop pipes. The rings having inside diameters, which vary to fit the size of pipe used by the outside drop such that are size collar works with any size outside drop pipe. An elbow attached to the outside of the manhole wall and to the protective collar such that the outside drop pipe connects to the elbow. Thus the outside drop is totally protected from being moved relative to the manhole which may cause leaks.

Abstract: A free floating disc check valve is provided by the present application. The check valve includes a seal disc having an integral truncated torroidal shaped portion. The torroidal shaped portion provides structural rigidity to the seal disc to minimize deflection of the disc under higher differential fluid pressures. The torroidal shaped portion of the disc cooperates with finger-shaped projections inside the valve body to limit lateral displacement of the disc relative to the axial flow of the fluid. The torroidal shaped portion and the flat portion of the disc form a cup shape that creates a hydrodynamic force that assists in moving the disc to an opened or closed position. The seal disc is made of an elastomeric material that is coated with a dry film lubricant.

Abstract: A vaned spool type directional control valve used to change a direction of motion of an actuator in an air pressure or oil hydraulic circuit includes a vaned spool having a valve portion and a vane portion integrally formed on a spool shaft. A chamber including a shaft support portion, a valve room, and a vane room is formed corresponding to the vaned spool. Main ports connected to the valve room in the chamber and two vane ports penetrating the opposed sides of the vane room are formed in the directional control valve. The directional control valve is of a pilot operated type so that flow of fluid in a main circuit can be changed by rotating the vane spool using the pressure of a pilot fluid.

Abstract: The Invention relates to an exhaust valve for a semiconductor manufacturing process, which can improve sealability of the exhaust valve, prevent leakage of exhaust gas, and increase the cleaning period, more concretely, The exhaust valve includes a valve body having a chamber formed at the center thereof; a rotary cylinder rotatably coupled to the chamber of the valve body; a protective cover coupled to the outer circumferential surface of the rotary cylinder; an exhaust guide member coupled to the lower portion of the valve body; an adapter seated on the upper portion of the valve body and surrounding the shaft portion of the rotary cylinder; an actuator coupled to the upper portion of the adapter for rotating the rotary cylinder; and sensing means mounted at the upper portion of the valve body, wherein a first sealing member is mounted between the rotary cylinder and the protective cover.

Abstract: A valve which is cobalt-free excellent in wear resistance and seizure resistance manufactured by forming valve seats for a valve disc and a valve body with a nickel base alloy in which silicide particles or boride particles of small particle size are finely dispersed, and the valve seat is bonded to the valve disc or the valve body by way of an insert material comprising a nickel base alloy of a lower melting point by transient liquid phase diffusion bonding.

Abstract: A system and kit for forming an inexpensive protective plenum around pipes subject to freezing is disclosed. The system uses tubes formed of thin, flexible material, such as plastic tubes, to form the plenum. The plenum may be installed in sections with the sections joined with rings or collars at the joints. The rings and collars may also be formed of inexpensive materials, such as plastics. The tubes of the plenum may be formed from plastic sheets by joining the sheets at opposite edges to form seamed tubes. The edges may be joined by tapes or adhesives. The tubes may be formed around existing piping for ease of retrofit installation. The plenum may be connected to a source of hot air, such as the duct work of the hot air heating system of a dwelling.

Abstract: A pre-formed insulation module is disclosed having a part cylinder body. The body includes an unstriated insulation layer formed of a rigid insulating material substantially uniform in composition and density over its cross section. The insulation layer has an inner surface adjacent to a surface of a component to be insulated, and an outer surface generally concentric to the inner surface. A substantially non-fibrous resilient cladding layer shaped to the body is directly adhered to the insulation layer at the outer surface. Connection means are disposed along the length of the body for connecting with a further insulation module, wherein the insulation and cladding layers of each module are brought into relative contact along the contacting surfaces of the modules to insulate a portion of the component.

Abstract: This invention relates to a device and a process for introducing gases into a hot medium, whereby device (1) contains a pipe (2) for introducing gas and a cooling jacket (3) that encases pipe (2).

Abstract: A system and kit for forming an inexpensive protective plenum around pipes and related equipment subject to freezing on a mobile home is disclosed. The system uses thin, flexible material, such as plastic tubes, to form a first protective plenum around the pipes and to connect enclosures around a water box forming a second protective plenum. The first plenum around the pipes may be installed in sections with the sections joined with rings or collars at the joints. The rings and collars may also be formed of inexpensive materials, such as plastics. The second plenum may be connected to the first plenum or to a tube. The first plenum and the tube may be connected to a source of hot air, such as the duct work of the hot air heating system of the home.

Abstract: Disclosed herein is a fuel pump for an inter-cylinder direct fuel injection apparatus, in which occurrence of corrosion and attrition caused by cavitation or erosion can be suppressed, their resistance against the environment can be improved, and an excellent lifetime can be achieved in the case of the use of an aluminum material even if the temperature reaches as high as 100° C. or higher and the pressure reaches as high as 7 to 12 MPa. In the fuel pump for an inter-cylinder direct fuel injection apparatus, made of aluminum or an aluminum alloy, a coating film plated with Ni—P or a Ni—P based material is formed by electroless plating.

Abstract: An improved pneumatic valve and a missile with an improved thrust directional valve. In one embodiment, a refractory material lining for a pneumatic valve enables better valve operation and better valve performance. A thin-wall cylindrical sleeve of rhenium or other suitable refractory metal is located inside a cylinder. A valve piston may then travel within the refractory sleeve with greater reliability and better operation. The refractory sleeve cylinder lining can be subject to high temperatures at a rapid rate and remain operational. Under such a hostile environmental, including corrosive/erosive environments created by the passage of hot propellant gasses, the refractory cylinder sleeve has a more reliable operational life and is lighter in weight than conventional valves made entirely of refractory metals.

Abstract: In the joint construction of cobalt-based alloy, a cobalt-based alloy layer 1, in which granular or massive eutectic carbide 2 disperses, is joined to a metal of a base metal 37 via an insert metal layer 36. For the joint construction of cobalt-based alloy, liquid phase diffusion bonding is performed at a temperature of 1100° C. for a retention time of 1 hour with an insert metal with a thickness of about 40 ?m being interposed between the base metal, which is S45C carbon steel, and a cobalt-based alloy material which has granular or massive eutectic carbide with a grain size not larger than 30 ?m in a matrix of cast structure and contains 1.03 wt % C, 29.73 wt % Cr, 3.86 wt % W, 2.59 wt % Ni, 2.67 wt % Fe, 0.59 wt % Si, and 0.07 wt % Mo, the balance substantially being Co. The cobalt-based alloy layer 1 after bonding contains granular or massive eutectic carbide.

Abstract: In the joint construction of cobalt-based alloy, a cobalt-based alloy layer 1, in which granular or massive eutectic carbide 2 disperses, is joined to a metal of a base metal 37 via an insert metal layer 36. For the joint construction of cobalt-based alloy, liquid phase diffusion bonding is performed at a temperature of 1100° C. for a retention time of 1 hour with an insert metal with a thickness of about 40 ?m being interposed between the base metal, which is S45C carbon steel, and a cobalt-based alloy material which has granular or massive eutectic carbide with a grain size not larger than 30 ?m in a matrix of cast structure and contains 1.03 wt % C, 29.73 wt % Cr, 3.86 wt % W, 2.59 wt % Ni, 2.67 wt % Fe, 0.59 wt % Si, and 0.07 wt % Mo, the balance substantially being Co. The cobalt-based alloy layer 1 after bonding contains granular or massive eutectic carbide.

Abstract: A fluid vent (26) for venting fluid from the annulus between the inner surface of a rigid conduit (20) and the outer surface of a conduit liner (10). The fluid vent (26) consists of a length of rigid conduit (34) containing a multiplicity of apertures (32) extending through the wall of the conduit and arranged in an annular pattern around the circumference of conduit (34). The fluid vent (26) further comprises means defining a closed annular volume (36) extending around the exterior circumference of the conduit (34) and interconnecting the outer ends of the apertures (32) with at least one fluid outlet passage (40) located on the exterior of the conduit (34) and communicating with said annular volume (36). The fluid vent can be used to expel water or other liquids from the annular space when retro-fitting a liner to a conduit, venting gas which has permeated through the lining into the annulus, or for assisting in the movement of fluid through the annulus.

Abstract: An apparatus and method is provided to evacuate liquids from a water jacket of an enclosed chamber. An electronic valve, such as a solenoid can be actuated remotely to open and allow liquids to evacuate. A controller can also be used to actuate the solenoid or at a period of time or at an event.

Abstract: A freezeless wall hydrant is provided that has an elongated inlet pipe comprised of a hollow tube. The tube is connected to a valve and fitting assembly on its inner end for connection to a source of water under pressure. On the outer end, the tube is connected to an adjusting element with an outlet port that is associated with the valve and fitting assembly to open or close the tube to fluid flow and allow for fluid flow out of the tube when the valve is in the open position. The tube is comprised of a flexible material that enlarges in diameter in an area along its length when it is subjected to trapped fluid therein under high pressure so that the tube will not rupture. The tube returns to its normal diameter after the high fluid pressure therein is abated.

Abstract: Two case members of the same shape are attached to the body of an expansion valve and a temperature sensing drive element through sound insulating members. Each of the two case members is formed having upper retaining and retainable portions at its upper part and lower retaining and retainable portions at its lower part. The upper retaining portion, upper retainable portion, lower retaining portion, and lower retainable portion of one of the case members are in engagement with the upper retainable portion, upper retaining portion, lower retainable portion, and lower retaining portion, respectively, of the other case member.

Abstract: The invention concerns an installation for measuring and displaying protected against risks of being frozen, comprising a fluid metering assembly (1) connected to a fluid supply pipe (2) and a fluid outlet pipe (3). Said fluid metering assembly (1) is mounted in an inspection window (4) below the frost line, said pipes extending in a trench produced in the ground (13) and connected to the inspection window (4). The metering assembly (1) is removable with or without interrupting pressurised fluid. A metering plate (8) retains flexible junction means (9, 10) connecting the intake and the outlet pipes (2, 3) to the metering assembly (1). The installation comprising the fluid metering assembly (1) is useful for maintaining protected against frost and accessible standard valves and fittings, in particular straight or coaxial meters (1).

Abstract: Thermal covers for backflow prevention assemblies disclosed to prevent freeze-ups have a cover body with a thermal top wall, opposed thermal side walls that flex toward and away from one another, opposed normally closed ends, a variable shaped bottom opening and an adjustable closure for said bottom opening. The side walls spread apart and said cover body fits down over said backflow prevention assembly with said bottom closure open. The bottom opening is closed by the bottom closure to a reduced size and fits around and against at least one of the vertical pipes connected to the backflow prevention assembly. A second embodiment has cover ends that are selectively opened and closed by adjustable end closures similar to the adjustable bottom closure. Opposed velcro-type co-operative first and second fastening members are used. The second embodiment opens up into a flat blanket-like configuration.

Abstract: A unique protective cover system for hot water pipes and other pipe installations and which relies upon a plurality of jackets capable of being disposed about the pipes. In one embodiment of the invention, there is provided an under-sink heat protective cover system having a first J-shaped jacket to cover a J-shaped pipe arrangement or J-trap and a portion of straight pipe cover to cover the waste arm pipe in an under-sink pipe installation. Moreover, a unique coupling mechanism in the mating jackets allows one jacket to be fitted and tightly connected with the other jacket. Each of the jackets are slit longitudinally so that they can be spread apart at the slit and fitted on the pipes of the installation. A unique locking system is provided to retentively and tightly hold each jacket around a pipe section. Moreover, in another embodiment, fiber fastening strips are located adjacent the opposed edges of the slit for quickly releasably locking together with two edges of the jacket adjacent the slit.

Abstract: Microfluidic devices provide substances to a mass spectrometer. The microfluidic devices include first and second surfaces, at least one microchannel formed by the surfaces, and an outlet at an edge of the surfaces which is recessed back from an adjacent portion of the edge. Hydrophilic surfaces and/or hydrophobic surfaces guide substances out of the outlet. A source of electrical potential can help move substances through the microchannel, separate substances and/or provide electrospray ionization.

Abstract: The inside surfaces of pieces constituting an undersink pipe-covering system are formed with series of weakness zones, at spaced intervals and with associated distance scale indicia, to permit facile and convenient length determination and manual severance for adjustment, while affording aesthetic appeal.

Abstract: An exhaust pipe valve has a housing, a bearing sleeve mounted in the housing, a valve spindle rotatably mounted in the bearing sleeve, and a valve plate mounted at the valve spindle. The bearing sleeve has a primary bearing surface on its side facing the valve plate, and the valve spindle has a primary sealing surface that cooperates with the primary bearing surface of the bearing sleeve. A washer is arranged on the valve spindle and cooperates with the bearing sleeve on a side facing away from the valve plate. A spring biases the primary sealing surface of the valve spindle against the primary bearing surface of the bearing sleeve while biasing the washer against the bearing sleeve.

Abstract: A unitary protective pipe cover for disposition about a pipe configuration under a conventional sink, and which is sized and shaped so as to cover the J-trap, as well as the waste arm, in the undersink pipe configuration. In the event that the waste arm extends at an acute angle with respect to the J-trap, the pipe cover can be severed and the two severed pipe cover sections can be secured together in a generally tamper proof arrangement.

Abstract: In a gas valve including a valve body having an annular seal surface, of which an axis is disposed to extend in a vertical direction, and of which seal surface a diameter becomes larger toward a lower end of the seal surface, to prevent water drops on the seal surface made by condensation from freezing and to prevent the seal surface from being fixed to a seat because of the freezing, a liquid repellent film is provided on the seal surface of the valve body.

Abstract: A sliding component, particularly a disk valve plate. The sliding component includes a multi-layer surface structure comprising a strengthening layer harder than the substrate material, and an amorphous diamond top layer.

Abstract: A valving assembly for a motor vehicle includes a hard, lubricious and chemically inert coating of graphitic carbon. The coating may include a metal. Preferred metals include chromium or other transition metals.

Abstract: A sliding component, particularly a disk valve plate. The sliding component includes a multi-layer surface structure comprising a strengthening layer harder than the substrate material, and an amorphous diamond top layer.

Abstract: A compressor has a first housing, a second housing, a valve plate, a suction valve, a discharge valve and a sealing coat. The first housing includes a compression chamber. The second housing includes a suction chamber and a discharge chamber. The valve plate is interposed between the first housing and the second housing. The suction valve is disposed between the first housing and the valve plate. The discharge valve is disposed between the second housing and the valve plate. The valve plate forms a suction port intercommunicating the suction chamber and the compression chamber, and a discharge port intercommunicating the discharge chamber and the compression chamber. The sealing coat made of soft metal is provided between the suction valve and the valve plate, and/or between the discharge valve and the valve plate.

Abstract: There is provided an electromagnetic valve for opening and closing a fluid flow passage by operating a plunger under a magnetic force of a solenoid. The valve comprises a valve head provided at one of opposite ends of the plunger, and a fixed valve seat including an orifice providing a fluid flow passage. The valve head is adapted to abut against the valve seat to close the orifice. A spring resiliently presses the valve head in a direction for abutment of the valve head against the valve seat to close the orifice. Either one of the valve head and the valve seat is formed from a metallic material and the other is formed from a non-metallic material having a greater hardness than the metallic material. It is preferred that the metallic material be a highly corrosion-resistant metal alloy containing Ni in a high amount ratio, and the non-metallic material be of a ceramic type.

Abstract: A unique protective cover system for hot water pipes and other pipe installations and which relies upon a plurality of jackets capable of being disposed about the pipes. In one embodiment of the invention, there is provided an under-sink heat protective cover system having a first J-shaped jacket to cover a J-shaped pipe arrangement or J-trap and a portion of straight pipe cover to cover the waste arm pipe in an under-sink pipe installation. Moreover, a unique coupling mechanism in the mating jackets allows one jacket to be fitted and tightly connected with the other jacket. Each of the jackets are slit longitudinally so that they can be spread apart at the slit and fitted on the pipes of the installation. A unique locking system is provided to retentively and tightly hold each jacket around a pipe section. Moreover, in another embodiment, fiber fastening strips are located adjacent the opposed edges of the slit for quickly releasably locking together with two edges of the jacket adjacent the slit.

Abstract: The invention relates to a beverage tap. The tap consists of an outer injection-molded plastic casing, into which a multi-part special steel inner part is securely pressed with a snug fit. The inner part consists of a tubular special steel part (1a) with a fitting (2), against which a tubular special steel part (3a) of a spout (3) is placed to the side in a liquid-tight manner, and in which a fixture (4a) for a ball joint (4a) of the control element (4) of the shutoff valve is held with a snug fit to the side by means of a swivel nut (5a**).

Abstract: The fuel injection apparatus has at least one solenoid valve (50) for controlling the fuel injection. The solenoid valve (50) is triggered by an electrical control unit (52) and has a magnetic coil (88) and a movable magnetic armature (88). The magnetic armature (80) can move a valve element (56) between at least two positions. The magnetic armature (88) is at least essentially comprised of an alloy, which at least contains iron and cobalt, wherein the cobalt content is between 10% and 50%. The control unit (52) evaluates the chronological progression of the current conduction through the magnetic coil (88) and based on it, determines the time of a switching state of the solenoid valve (50) at which a fuel injection begins.

Abstract: A service valve for a CO2 refrigerant based air conditioning system in a vehicle. The service valve includes a dynamic seal that is opened and closed during servicing of the air conditioning system. The dynamic seal provides for good overall sealing as well as good permeation resistance.

Abstract: A recessed, frostproof water faucet having a tubular stem connected to a pivot plumbing unit connected to a subsurface water line through the rear wall of a box-like recess unit. A slider connector connects the water faucet tubular stem and the access panel or lid of the recess unit. The lid pivots on hinges and as one lifts the lid, the faucet is lifted by the slider connector from a horizontal storage position to a vertical locked position for use, the slider connector being connected to a faucet flange and sliding along grooves in tracks mounted along the inner side of the lid. A sliding hinge locks the lid upright, sliding downward along the upper end of the rear wall. The faucet is returned to the storage position by pulling upward and lowering to the closed position, the slider connector sliding forward along the grooves to the stored position.

Abstract: An improved pneumatic valve and a missile with an improved thrust directional valve. In one embodiment, a refractory material lining for a pneumatic valve enables better valve operation and better valve performance. A thin-wall cylindrical sleeve of rhenium or other suitable refractory metal is located inside a cylinder. A valve piston may then travel within the refractory sleeve with greater reliability and better operation. The refractory sleeve cylinder lining can be subject to high temperatures at a rapid rate and remain operational.

Abstract: A water meter cover including a pipe segment having an outside diameter, having upper and lower ends, and having annular outer and inner surfaces; a pipe cap closely fitted to the outside diameter of the pipe segment, the pipe cap having a downwardly facing surface; a first adhesive layer disposed between the pipe cap and pipe segment, the first adhesive layer fixedly attaching the pipe cap to the upper end of the pipe segment; an elastic foam sheet having an outer surface; and a second adhesive layer disposed between the elastic foam sheet and the pipe segment, the second adhesive layer fixedly attaching the outer surface of the elastic foam sheet to the annular inner surface of the pipe segment.

Abstract: A valve is characterized by excellent corrosion and wear resistance and maintainability due to use of a bonding corrosion and wear proof alloy containing non-continuously distributed eutectic carbide on the sliding portions of various types of apparatuses and valves by diffusion bonding. This serves to improve the maintainability of a thermal and nuclear power plant and to provide a nuclear power plant using recirculating water, which ensures excellent working safety, in particular. The corrosion and wear proof alloy is characterized in that network-formed eutectic carbide in the alloy containing the cast structure base metal and eutectic carbide is formed into(multiple) granules or lumps having a particle size of 30 microns or less so that said eutectic carbide is non-continuously distributed.

Abstract: Liquid dispensing module and methods for dispensing a heated liquid onto a substrate. The dispensing module includes a dispenser body receiving liquid from a heated liquid distribution manifold and an actuator having a housing with an air piston movable in an air cavity and a solenoid valve for pressurizing the air cavity. Movement of the air piston controls a flow-regulating mechanism for selectively dispensing liquid from the dispenser body. A thermally insulating shield may be provided for reducing heat transfer from the manifold and/or dispenser body to the actuator so that the solenoid valve can be mounted directly to the housing and the effective volume of the air cavity can be reduced. The cycle time of the liquid dispensing module may be specified by selecting an initial volume of the air cavity and an effective valve flow coefficient for the actuator that characterizes the air flow to the air cavity.

Abstract: A service sleeve coupled with a frost proof sillcock including a housing having an outer surface and defining an inner chamber for receiving an inner portion of the sillcock, a stem portion, and an area of water pipe that extends radially from the stem portion to the structure's water supply. The service sleeve further includes a cap having an inner surface, a first end having a diameter to receive the outer surface of the housing, and a second end having a diameter sized to slidingly receive the water pipe. The stem portion having a male portion and a female portion. The male and female portions have bores therethrough. The female portion having an inlet end coupled to the water pipe and an opening opposite the inlet end for access to the bore of the female portion. The male portion having an outlet end for connecting to the inner portion of the sillcock and an opening for access to the bore of the male portion.

Abstract: Covers, containers, multi-ply insulators and methods are disclosed for maintaining a desired thermal environment for carried or conveyed materials. The insulating cover of this invention for use over a liquid supply tube of the type associated with body mountable hydration pack system includes a multi-ply envelope having outer and inner material layers, the outer layer having an outwardly facing reflective surface, preferably a silver MYLAR with knit backing. The inner layer includes an open cell foam with a smooth, inwardly facing, lining.

Abstract: A leak identification and containment device (10, 48, 64) is provided which is designed for application to a valve assembly (12) including a conduit (16) and a valve (18) having an operating handle (20) and an outlet (22). The device (10, 48, 64) includes a flexible bag (24, 50, 66) formed of synthetic resin material which is at least translucent (and preferably substantially transparent) with a valve-receiving opening (30, 52) and an absorbent lining (34) on the inner surfaces of the bag (24, 50, 66). In use, the bag (24, 50, 66) is disposed over the valve assembly (12) including handle (20) and outlet (22) and a cinch strap (34, 54) is used to tighten the bag (24, 50, 66) about the conduit (16). The absorbent lining (34) is of a color which contrasts with that of material which may leak from the valve assembly (12), so that the device (10, 48, 64) gives a visual indication of leakage.

Abstract: A method for the production of a stop valve for pipes, with a housing which consists of plastic, has two pipe connectors and in which a blocking element, which can be adjusted by an actuation unit between a flow position and a blocking position, is mounted at least by means of bearing rings and seals. This method includes injecting plastic around the inner part, which comprises the blocking element as well as the bearing and sealing rings, in the pre-assembled state with the use of an adhesion means to form the housing.

Abstract: The invention concerns a safety valve, in particular for low pressures and aggressive media, with an inlet which ends at the top in a valve seat upon which lies in a sealing manner a weight-loaded sealing body. A certain overpressure below the valve seat and/or a certain underpressure above the valve seat causes the sealing body to lift. At its upper end, the sealing body forms a shaft projecting vertically upward which is guided along or in a vertical part fixed immovably to the valve body. Fastened along or on top of the shaft are two or more weights, particularly detachable weights.

Abstract: A valve assembly comprising a valve stem, an annular bonnet configured to receive the valve stem, a valve disk coupled to one end of the valve stem, a seal, and an insert. The seal is disposed adjacent the valve disk and has a top surface and a bottom surface. The top surface includes a first pair of sealing ridges extending upwardly therefrom and the bottom surface includes a second pair of sealing ridges extending downwardly therefrom. The insert includes a recess configured to receive the seal that performs a sealing function and a biasing function. The valve assembly can easily be configured to open in either a clockwise or counterclockwise direction without resort to adapters or other additional pieces by rotating the bonnet/valve stem sub-assembly 90° relative to the insert.

Abstract: Rotary valves with rotors and compliant linings are provided. A rotary valve includes a rigid hollow stator and a rotor disposed within the stator. The rotor includes a rigid core and a compliant lining injection molded onto the rigid core, wherein the compliant lining is sealingly engaged with an inner bearing surface of the stator and includes one or more surface channels that can be placed into fluid communication with one or more ports disposed on the stator. The rigid core is composed of polycarbonate and the compliant lining is composed of polyurethane. The surface channels can be, e.g., arcuate or longitudinal surface channels. The rigid core can include one or more through channels, in which case, the one or more surface channels can intersect the one or more through channels to form a continuous channel.

Abstract: A valve that includes a wall, a closure member, a motive force device, a coupling member, and a spacer. The wall defines a flow passage that is disposed along a longitudinal axis. The closure member is disposed in the flow passage and includes a first shaft that extends along a first axis that is oblique to the longitudinal axis. The closure member is rotatable on the first axis between a first position that substantially prevents flow through the flow passage and a second position that generally permits flow through the flow passage. The motive force device rotates the closure member between the first position and the second position, and includes a second shaft that is rotatable on a second axis. The coupling member connects the first and second shafts to convey rotation from the device to the closure member. The coupling member is resilient with respect to the first and second shafts.

Abstract: A valve which is cobalt-free excellent in wear resistance and seizure resistance manufactured by forming valve seats for a valve disc and a valve body with a nickel base alloy in which silicide particles or boride particles of small particle size are finely dispersed, and the valve seat is bonded to the valve disc or the valve body by way of an insert material comprising a nickel base alloy of a lower melting point by transient liquid phase diffusion bonding.

Abstract: A plastic ball valve has a layer of metal film coated on the ball by electroplating. This prevents the ball from directly contacting the inner surface of a pipe housing socket. Microorganisms are prevented from growing at the junction of the ball and pipe housing. When the pipe housing is sleeved on another pipe by applying an adhesive, any adhesive that adheres on the ball is easily peeled off during valve operation. This ensures a smooth regulation of fluid flow through the pipe housing.