Abstract: Foot support systems include a fluid flow control system that facilitates movement of fluid into, out of, and/or within a sole structure and/or article of footwear, e.g., to change and/or control pressure in fluid filled bladder(s). Aspects of this technology may relate to one or more of: (a) footwear structures in which such systems are incorporated; (b) valve stem based fluid flow transfer systems; (c) solenoid based fluid flow transfer systems; (d) user input button features; (e) air filter features; (f) fluid tube to fluid distributor connection features; (g) fluid distributor to footwear connection features; (h) valve position sensor features; (i) valve transmission features; (j) pressure control algorithm features; (k) electronic communication features; (l) system sealing features; and/or (m) pressure sensor mounting features.

Abstract: Various embodiments of an antimicrobial insert for a stopcock medical connector are provided. More specifically, the present invention relates to an antimicrobial insert that is seated within at least a portion of the annular bore of the connector's tap, wherein fluid within the annular bore contacts the antimicrobial insert, thereby preventing microbial proliferation within the stopcock medical connector.

Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.

Abstract: Improved flow control assemblies for fluid systems (e.g., industrial and/or commercial systems) are provided. More particularly, the present disclosure provides for advantageous ball valve assemblies for fluid systems. In exemplary embodiments, the present disclosure provides for improved ball valve assemblies and related features, systems and methods of use. Exemplary ball valve assemblies of the present disclosure offer advantages over conventional assemblies including, without limitation, advantages in the sealing mechanisms of the ball valve assemblies, and advantages with the user interfaces of the ball valve assemblies (e.g., advantages with the lockout mechanisms). Improved, convenient and effective systems and methods for utilizing improved ball valve assemblies in fluid systems are provided.

Abstract: A configuration for installation into a pipeline of a fluid network. The configuration has a connection housing with an inlet, an outlet, and a connection opening for connection of an exchangeable functional unit. The connection housing has a rotatably arranged core piece whose rotation makes it possible for the throughflow of the fluid through the connection housing to be blocked and/or released. The core piece has a receptacle for connection of the functional unit, and the receptacle and the connection opening are oriented in the same direction.

Abstract: An arrangement for installation in a fluid line network contains a fluid meter having a housing with a fluid inlet and a fluid outlet, and a volume measuring part. At least one connector, which is intended for connection to the housing of the fluid meter, is either equipped with an additional function or configured for the adaptation of an additional function on the connector. The connector has a connector inflow and a connector outflow. The fluid meter and the connector form a modular unit that can be installed in the fluid line network.

Abstract: A plug valve including a valve body defining a cavity and a pair of fluid passages intersecting the cavity, the cavity defining a tapered interior surface of the valve body, a plug extending within the cavity, the plug defining an exterior surface and a fluid passage adapted to be substantially aligned with the fluid passages of the valve body, and an insert extending within the cavity and circumferentially about at least a portion of the plug, the insert defining a pair of fluid passages substantially aligned with the fluid passages of the valve body, respectively. In several exemplary embodiments, the plug valve is used in oil or gas operations, such as, for example, the fracturing or gravel packing of a subterranean wellbore, with the plug valve being used to control the flow of fracturing and/or gravel-packing fluids. Exemplary embodiments of methods associated with the plug valve are also described.

Abstract: A spray gun includes a gun body, a rotary plug and a button. The gun body has a valve seat extending between an inlet passage and an outlet passage thereof. The plug is accommodated in a chamber of the valve seat and has a fluid path, with the plug rotatable between an open position where the fluid path joins the inlet passage and the outlet passage and a closed position where the plug separates the inlet passage from the outlet passage. The button has two lobes joined to opposite ends of the plug. An elastomeric seal ring is sleeved around the plug. A backup ring adjacent to the seal ring is sleeved around the plug. The seal ring and the backup ring are held between a shoulder of the valve seat and the respective lobe of the button.

Abstract: A flow control device for a bar gun manifold. The flow control device includes a sleeve and an actuating member. The sleeve is monolithically formed of an elastomeric material. The sleeve includes a cylindrical outer surface, a through hole oriented transverse to the sleeve axis of rotation, a first raised portion that encircles the sleeve and is shaped to provide a seal between the sleeve and the manifold body, and a first interface shaped to connect the sleeve to the actuating member. The actuating member includes a second interface shaped to interface with the first interface. The first and second interfaces are shaped to transfer rotation of the actuating member about the sleeve axis of rotation to the sleeve to reorient the through hole relative to a fluid passage of the manifold body.

Abstract: An apparatus for flow control and shutoff comprises a body having a chamber, an inlet and an outlet, the inlet and the outlet in fluidic communication with the chamber; the said apparatus for flow control and shutoff further comprises a flow regulator comprising a channel and the flow regulator rotatably fit in the chamber, such that the flow regulator is rotatable between a first rotational position and a second rotational position and that the channel is in fluidic communication with at least one of the inlet and the outlet; the said apparatus for flow control and shutoff further comprises a lever operably connected to the flow regulator such that the lever urges the flow regulator to rotate between a first rotational position and a second rotational position in the chamber when a user of the apparatus pushes the lever.

Abstract: The invention relates to a valve comprising a housing and a closing member arranged in the housing, from which member a shaft protrudes via which the closing member is rotatable in the housing. In order to provide a working and easy-to-use valve, the closing member comprises a sector closing the opening, a flexible sector having a thinner wall than the closing sector, a guiding sector having the same radius (R) as the inner surface of the housing wall, and an open sector.

Abstract: A plug valve assembly having an inlet and an outlet comprises a housing including a bore extending through the housing between the inlet and the outlet and a cavity intersecting the bore, a plug mounted in the cavity for rotation between first and second positions. In the first position an orifice extending through the plug is aligned axially with the bore of housing to allow fluid to flow from the inlet to the outlet and in the second position fluid is prevented from flowing from the inlet to the outlet. Seals are located in the cavity between the plug and an inner surface of said cavity and a plug retaining member is releasably attachable to the housing. A surface of the plug retaining member limits upward movement of the plug in the housing. The housing includes a reinforcement collar extending around the inner surface of the cavity.

Abstract: A plug valve has a valve body, a cage fitted within the valve body and a rotatable plug housed within a cylindrical cavity in the cage, for controlling fluid flow through the valve. The cage has first and second opposed flat side surfaces, each side surface has a port for receiving a replaceable flow-path insert in a fluid-tight seal. In one embodiment, the plug also includes at least one inset seal for sealing the at least one of the ports when the plug is in a closed position to inhibit leakage through the valve at low fluid pressures.

Abstract: A control valve includes a valve seat, a control switch, and at least one leakproof ring. Thus, when the control valve is disposed at a closed state, the water inlet or the water outlet of the valve seat is stopped by the leakproof groove of the control switch and is sealed closely by the leakproof ring, thereby enhancing the leakproof effect of the control valve.

Abstract: A medical stopcock is provided that is constructed and arranged to withstand high pressures and gamma irradiation. The stopcock generally includes a housing and a valve member. The valve member is trapped within the housing so that, when subjected to relatively high pressures, the valve member is unlikely to become separated from the housing. A handle member is attached to the valve member and allows the valve member to be rotated from open to closed positions. In some preferred embodiments, the handle member locks the valve member within the housing, when attached. All of the components are constructed of gamma-stable materials so that the stopcock may be sterilized, in its package, using gamma irradiation.

Abstract: A stopcock for controlling ducts in a medical endoscopes passing flux media, including a housing made of a hard material and rotatably receiving a conical plug in a conical seat crossed by a duct. The housing subtends, in the direction of the axis of rotation and beyond the larger opening of the conical seat, a bearing collar which supports a rotary body that is rotatable about the axis of rotation. The rotary body is fitted outside said housing with a handle and is rotationally coupled with the plug. The rotary body is axially displaceable and biased by a spring relative to the plug and is further fitted with a radially elastic detent device, which in the assembled state of the stopcock is configured inside the housing. The rotary body, by operation of the detent device, acts in a locking manner against the spring action on the bearing collar. The rotary body includes a prefabricated rupture site that, following deliberate rupture, exposes the snap-in device.

Abstract: A new, unique combination of the tractrix valve and the tractrix stem seal is described as an improvement over the original patents issued. The plug and the stem seal are juxtaposed large end to large end. The stem seal functions as a fluid seal and as a journal bearing. The purpose of the tractrix valve is to prevent leaks through the seat of the valve and to the outside environment past the stem seal by use of long-term self-renewing tractrix surfaces that continue to mate after continued use.

Abstract: A fitting including a housing (2), a rotatable body (4) which is situated in the housing and which may advantageously be constructed in the form of a conical plug, a bushing (18) provided in the housing to floatingly mount and seal the rotatable body (4), a cover (14) connected to the housing (2), a shaft (12) coupled with the rotatable body (4) and extended out through the cover (14), and at least one sealing element (30, 44) associated with the shaft (12). The fitting is configured in such a way that the bushing (18), the at least one sealing element (30, 44), and the cover (14) can be positioned and mounted centrally and free from transverse forces in relation to the axis (10) of the floatingly mounted rotatable body (4).

Abstract: A multi-way cock including a substantially hollow-cylindrical housing with attachment bores on its outer circumference; a plug rotatably mounted in the housing and having a through-channel transverse to an axis of rotation and which may be aligned with the attachment bores in the housing; axially protruding engagement elements having locking grooves arranged on a base portion of the housing, which housing is closed at its bottom; and locking projections on an inner circumference of the hollow-cylindrical plug which are sized and shaped to engage the locking grooves.

Abstract: A fuel line petcock valve including a handle which may be oriented in one of several positions so as to orient the inlet and outlet of the petcock valve to conform to different motorcycle fuel systems and to provide a full shut, full open and intermediate position for permitting reserve fuel to be transferred to the valve.

Abstract: A simplified liquid dispenser comprises a hopper formed at the bottom into a base through which a base passage is drilled. The hopper contains the liquid to be dispensed. A rotary plug valve controls the flow of the liquid through the base. The plug valve is formed by a shaft journal which mates with a base bore which intersects the base passage at right angles. The shaft journal contains a shaft passage which, when aligned with the base passage, allows the liquid to flow out of the dispenser, and when not aligned with the base passage, prevents the exit of the liquid. A shaft handle contains a slot through which a restraining screw is attached to the base, allowing the rotation of the shaft through ninety degrees. The dispenser is fabricated from a hard, slippery plastic material, obviating the need for bearings.

Abstract: A valve has a molded plastic valve housing defining an inlet port, an outlet port, and a chamber between the ports. The housing also has a collar defining an opening into the chamber and carrying a molded plastic cap formed with a central hole. A molded plastic valve body is rotatable about a body axis between open and closed positions in the chamber and is unitarily formed with a throughgoing passage aligned with the ports only in the open position, a stem extending along the body axis through the hole of the cap, axially oppositely open mass-reducing pockets, and an annular rim captured between the cap and the collar.

Abstract: A valve with a backflow preventer has a valve housing with a fluid inlet, a main flow channel, and a fluid outlet formed therein. A valve element is provided in the valve housing to selectively actuate the valve. The valve element is rotatable between an open position in which a fluid flow path exists between the fluid inlet and the fluid outlet along the main flow channel and a closed position in which no fluid flow path exists between the fluid inlet and the fluid outlet. A chamber is formed in the valve housing in a position which is offset from the main flow channel. The chamber has an opening in fluid communication with the atmosphere, and a ball is provided in the interior of the chamber. The ball is movable between a first position in which the ball prevents fluid backflow from the fluid outlet to the fluid inlet and a second position in which the ball substantially blocks the opening in the chamber.

Abstract: A novel sealing arrangement for fluid carrying devices and particularly for plug type valves, such as retractable double block and bleed plug valves. The sealing arrangement of the present invention adds secondary and tertiary seals to the conventional packing gland primary seal along the outer surface of the trunnion of such plug type valves. A unique isolated chamber is formed between the secondary and tertiary seals and because of the elastomeric nature of the secondary and tertiary seals, this isolated chamber is bubble tight and thus resists the gradual accumulation of minute leakage, which might otherwise cause false alarms in prior art leakage sensing equipment. Furthermore, the bubble tight feature of a chamber between isolated elastomeric seals, enables purging this chamber for making accurate observations and measurements of true leakage that might otherwise be an environmental hazard.

Abstract: A proportional flow control valve is provided for use with low air loss patient support systems. The valve includes a valve housing having an inlet and an outlet defined therein with a valve passage defined through the housing between the inlet and outlet. A chamber is defined in the housing, the chamber further including a nipple cavity defined in the bottom thereof and a cam stop extending from the bottom into the chamber. A valve spool is rotatably disposed within the chamber. The valve spool includes an alignment nipple fitting into the nipple cavity and a cam defined on the bottom thereof through a predetermined rotational arc. The cam and cam stop cooperate to limit the rotational arc of the valve spool within the chamber. A proportional flow control groove is defined in the valve spool. The flow control groove establishes linear air flow through the valve depending on the angular displacement of the spool within the chamber.

Abstract: A plug valve having a body with an inlet, an outlet and a plug-receiving opening which intersects the inlet and outlet. A plug is mounted in the opening and has an outer wall and an orifice extending therethrough. The plug is movable from an operative position in which the orifice connects the inlet to the outlet to allow fluid to flow to an inoperative position in which the orifice is disconnected from the inlet and outlet to prevent the flow of fluid from the inlet to the outlet. The plug outer wall has a seal-receiving portion which is spaced from the orifice and which is adapted to removably receive a seal retainer assembly. A seal is interposed between the seal-receiving portion of the plug and at least a portion of the seal retainer assembly to form a seal.

Abstract: A valve has an actuating shaft packing assembly for located in a valve enclosure cover for preventing leakage of process fluid into the space between the actuating shaft and the cylindrical sidewall of a bore in the cover. The assembly includes an annular lip located at the axial end of the bore proximal to the fluid control member. The lip extends axially away from the fluid control member. An annular sealing ring is positioned between the lip and the cylindrical sidewall of the bore and formed of a material having a greater coefficient of thermal expansion than the valve body or actuating shaft. The annular ring shrinks when cooled and increases the sealing effectiveness between the sealing ring and the lip for enhanced suppression of fluid flow between the sealing assembly and the cylindrical sidewall.

Abstract: A stop valve assembly comprises two closure members one for stopping substantive gas or liquid flow and the other to prevent leakage along a spindle section 33. Each member possesses a closure element in the form of a rigid disc-like member (9 or 34) of accurately predetermined thickness lying in a recess (1 or 3) formed round the end opening of a duct or around the spindle section and having exactly the same depth as the thickness of the disc. Over the disc outer surface 11, and the end face around the recess is located a flat annular deformable seal member (14, 64); this can be secured at in relation to the disc member, so as to travel with the disc member 9 as a stop valve, or can be secured against the said face around the recess so as to define an antileakage spindle seal. Since no deformed seal is used and since no packing is used in the screw spindle mechanism, high actuating force is unnecessary.

Abstract: A metering apparatus and system for controlling the administration of IV fluids having a valve housing with a valving chamber therein. A rotatable valve body member is positioned within the valve chamber and a valve passageway of variable cross-sectional area is provided at either the chamber or on the valve member. The effective area and length of the valve passageway interposed between the inlet and outlet to the valve is adjustable to regulate flow by moving the valve body relative to the valve member. Various accessories can be selectively attached to the basic valve configuration including a backplate which facilitates single-handed operation and an optional cover plate which may be secured to the backplate to provide security from patient tampering. In a preferred embodiment the valve housing and internal valve members are fabricated from dissimilar plastic materials of different hardness to improve the sealing therebetween.

Abstract: An orifice valve assembly which may be utilized to control the flow of a fluent material, such as powdered magnesium, propelled by gas under pressure, the valve controlling the flow in a linear manner.The valve includes a valve body having first and second adjacent concentric bores, the first bore being of a larger diameter than the second bore, and a cross-bore intersecting the first bore, the cross-bore having a cylindrical portion which intersects the first bore and frusto-conical inlet and outlet portions to either side of the cylindrical portion.

Abstract: A valve assembly for use in a filter device is disclosed herein. The valve assembly includes a valve housing, a cylindrical bore in the housing defining at least one open end, a valve stem inserted in the bore and including a groove about the circumference thereof, and a face plate mounted onto the housing about the open end in locking engagement with the housing. The face plate is provided with a cylindrical opening for receiving the valve stem, and a plurality of compressible fingers with gripping tabs about the distal end thereof which engage with the circumferential groove when the stem is inserted into the opening to create a fixed, rotatable relationship with the valve housing. The face plate also includes a locking tab which engages a recess in the housing to lock the face plate to the housing.

Abstract: A three-piece angle stop valve comprises a valve body, resilient control sleeve and handle, with no separate fastening or sealing elements required. Inlet line pressure resiliently biases the side walls of the control sleeve and a circumferential sealing flap formed thereon into sealing engagement with the valve bore to prevent leakage. The handle is secured to the valve body by resilient formations which snap into a circumferential groove on the valve body. The handle rotates the control sleeve by means of telescoping splines. Several circumferential and axial reinforcing ribs are formed in the interior of the control sleeve. A collar having a tapered rim in the valve body piercingly engages a corresponding tapered section on the resilient control sleeve to additionally secure the control sleeve against axial downstream movement in the valve body.

Abstract: A plug valve with metal-to-metal annular sealing rings with a V shaped cross section to provide a resilient force for sealingly engage with respect to a horizontal sealing surface and a nearly vertical rotatable sealing surface and/or with a vertical sealing surface.

Abstract: An improved valve with ball-shaped stopper, comprising a valve housing in which the stopper forms a seal with two faces developing in parallel planes opposite each other and in which the ball-shaped stopper, the stopper handle and the control rod connecting them are formed in a single rigid piece. The stopper component is provided, on the stopper and on the part of the control rod adjacent to it, with a coating of a sealant which forms the seal toward the outside of the valve preventing fluid from leaking, and also forms the seal within the valve which regulates fluid flow.

Abstract: A full opening sleeve valve device with check valve for controlling fluid flow through a line pipe or the like. The valve device has a housing, and a flow passageway extends through the housing and terminates at opposed ends thereof. The opposed ends of the housing passageway can be connected to the confronting ends of a pipe line. A bore extends through the housing and a flow control sleeve is rotatably received within the bore and sealingly engaging the peripheral wall surface of the bore. The sleeve has opposed ports that can be selectively rotated into registry with the flow passageways to align the ports with the passageway whereupon unrestricted flow can occur through the valve device. The check valve is a movable wall section of the sleeve and forms a closure member for a sleeve port and cooperates with the bore to form a check valve.

Abstract: The remote control and remote handling accessory is of such design that an xchange part (7) contains all elements subject to wear of the accessory, while the anti-wear elements, in particular the accessory case (2) remain firmly connected to the pipeline (1). The exchange part (7) and the accessory case (2) are mutually fixed by a clamping bracket (9). The exchange part (7) comprises a central bolt (16) which is displaceable with respect to the other components of the exchange part (7) and is supported in both axial directions by the clamping bracket (9) which is adapted to be swung open. In this manner the exchange part can be pressed into and pulled out of the anti-wear part (accessory case 2). The other components of the exchange part (7) are connected to a cover (15) with respect to which the central bolt (16) is rotatable, the cover (15) being secured to a slide shoe (8) of a stationary guide rail (4).

Abstract: This invention relates to a remotely operated valve for closing and opening a conduit in communication with the interior of a boat to preclude water from entering or leaving the boat except when desired by the operator by the boat. The valve has application either as a means for keeping fresh water in the live well of the boat or as a means for bailing unwanted water from the interior of the boat. The valve has a main housing including a tapered bore and openings in communication with an interior water retaining portion of the boat and the exterior of the boat. A spring-urged tapered valve element having a passageway therein is mounted within the tapered bore of the main housing and is rotatable between first and second positions to bring the passageway of the valve element into and out of alignment with the openings in the main housing.

Abstract: A shutoff and regulating valve contains, in a housing (2), a shutoff element which is designed especially as a stopcock (8) and which is arranged to be rotatable by means of a stem (26). The stem (26) is guided outward through a housing cover (20), a first sealing element (50) being provided for sealing purposes. The valve is designed for a minimized leakage rate and high safety requirements. The first sealing element (50) is supported on the underside of the housing cover (20) by an annular disk (54), and a second sealing element (60) is arranged on the upper side of the cover (20), so as to be adjustable, particularly by means of an axially movable bush (62).

Abstract: A quarter-turn, on-off plug valve having a valve body provided with a recess opening through a first portion of the body and closed at the opposite end by an integral portion of the body. A pair of stops are provided on a stem portion of the plug for accurately limiting the rotation of the plug to the 90.degree. different open and closed positions of the valve. The stops are defined by flat surfaces engaging a cylindrical retaining pin extending chordally through an upstanding annular wall portion of the body so as to provide improved accurate positioning of the plug in the open and closed positions of the valve.

Abstract: It comprises on a pipe, a body (1), an internal assembly (20), an actuator (70) and a holding assembly (40). These various parts can be easily locked and released by standard tools and can be extracted or refitted by simple translation. Positioning and centring devices for the different assemblies are provided. Application to valves in contaminated environments, particularly in the nuclear and chemical industries.

Abstract: A fluid valve apparatus has a spool mounted for movement within a spool cavity of a body, the body having inlet and outlet ports therein. The spool has a spool closure portion which is adapted for sealing against the outlet port when positioned thereagainst. The spool closure portion is responsive to fluid pressure acting on the spool which cooperates with the spool so as to displace the closure portion against the outlet portion to improve sealing therewith. The apparatus is particularly adapted for manufacturing by plastic injection, which provides a low cost, lightweight, corrosion resistant, easily adaptable valve assembly particularly for use in controlling liquid flows in medium bore pipes as used in forest fire fighting.

Abstract: A quarter-turn valve comprises a housing formed with a cylindrical socket, and a cylindrical plug receivable within the socket and having a bore extending diametrically through the plug for establishing communication between the inlet and outlet nipples in the open position of the plug, but terminating the communication when the plug is turned to its closed position one-quarter turn from the open position. The plug is formed with a finger-piece projecting from the housing for manually rotating the plug to its open, closed or an intermediate position. The plug is closed at its bottom, such that the fluid flowing through the bore subjects the plug to a fluid pressure which is balanced on all sides of the plug, thereby facilitating turning of the plug and preventing its accidental ejection when subjected to a high pressure.

Abstract: A fluid control valve with a rotatable shaft and a ball valve mounted within a flow bore. The ball has one or more V-shaped grooves for controlling fluid flow. In the closed position the ball and walls of the flow bore are in a continuous line sealing contact. The valve may be mounted and opened to enable complete drainage of fluid in the connecting pipeline which is an advantage in sanitary applications. The ball and shaft are part of a removable bonnet assembly with the ball inserted into the flow bore through an aperture in the valve body. A one-piece seal in the aperture provides a static seal between the valve body and bonnet and a dynamic shaft seal.

Abstract: Plug-type angle valve comprising a valve body and a unitary valve plug formed of a plastic material. The valve body has upper and lower trunnion seats and at least two fluid ports, one being a control port located at a position intermediate the trunnion seats. Another of the ports is an angularly displaced lower port extending through the lower trunnion seat. The valve plug has upper and lower trunnion sections journaled in the trunnion seats and an intermediate spherical control section between the trunnion sections and located adjacent the control port. A control passage extends from a lower opening in the valve plug aligned with the lower port to a second opening in the intermediate section of the valve plug.

Abstract: A metering apparatus and system for controlling the administraton IV fluids having a valve housing with a valving chamber therein. A rotatable valve body member is positioned wihtin the valve chamber and a valve passageway of variable cross-sectional area is provided at either the chamber or on the vlave member. The effective area and length of the valve passageway interposed between the inlet and outlet to the valve is adjustable to regulate flow by moving the valve body relative to the valve member. Various accessories can be selectively attached to the basic valve configuration including a backplate which facilitates single-handed operation and an optional cover plate which may be secured to the backplate to provide security from patient tampering. In the preferred embodiment the valve housing and internal valve members are fabricated from dissimilar plastic materials of different hardness to improve the sealing therebetween.

Abstract: A service valve includes a valve body (12) having an upper chamber (18), a lower chamber (20), an open top end (22) and an open bottom end (24). The lower chamber (20) includes an inlet opening (26) and an outlet opening (28). A valve member (14) is disposed in the valve body (12) and is molded of plastic material to form a unitary body including a plug portion (36) having a flow passage (38) therethrough and an actuator portion (34). The plug portion (36) is rotatable in the valve body (12) between an open position where the flow passage (38) is aligned with the inlet (26) and outlet (28) openings and a closed position where the flow passage (38) is out of alignment with the inlet (26) and outlet (28) openings. The actuator portion (34) extends outwardly from the plug portion (36) through one of the chambers (18, 20). First ( 50) and second (51) seals act between the plug portion (36) and the valve body (12) for sealing against leakage from the inlet opening (26) and outlet opening (28).

Abstract: A non-rise faucet assembly including a body 12 having a bore 14 therethrough. The bore includes a fluid inlet end 16, a valve stem chamber 17, a valve seat 19 and a fluid outlet 22. A valve stem 29 is rotatably mounted in the bore with a valve means 33 in engagement with the valve seat. The degree of rotation of the valve stem is controlled by a valve stem rotation restricting means 43 to define the fluid flow open and closed positions of the valve. A locator cap 51 is provided having a first abutment means 52 in axial thrust transmitting engagement with the valve stem and a second abutment means 53 in engagement with said body for limiting the amount of axial thrust transmitted to the valve stem by the first abutment means 52 to a predetermined optimum amount. A retaining means 76 is releasably secured to the body 12 to apply axial thrust to the first abutment means.

Abstract: A plastic service valve includes a valve body of molded plastic having upper and lower chambers. The valve body is open at the top and bottom ends. The lower chamber includes inlet and outlet openings. A thrust seat is formed within the upper chamber between the open top end and the inlet and outlet openings in the lower chamber. A valve member is disposed in the valve body and positioned against the thrust seat. Structure is provided in the valve member and adjacent to the thrust seat for locking the valve member to the valve body. The valve member is molded of plastic material to form a unitary body including a plug portion and an actuator portion. The plug portion is rotatable in the valve body between an open position which is aligned with the inlet and outlet openings of the lower chamber of the valve body and a closed position. The actuator portion extends upwardly through the upper chamber portion and receives an operating nut.

Abstract: An improved ball valve, particularly for gases, includes a case of unitary construction accommodating a hollow ballshutter supported between two juxtaposed gaskets and being controllable rotatively through a screw block having an external knob grip. The screw block accommodates, in addition to a gasket for the necessary seal, also a gasket capable of withstanding high temperatures. The screw block is held in place within the case by a bent wire segment of annular shape fitting in a specially provided annular seat formed in the case, and is located by a countersunk lockwasher.

Abstract: A plug valve which may be steam sterilized in place, without disassembly or removal from the system, is adapted for use in fermentation processes where the interior surfaces must be sterilized between batches. The plug is provided with internal steam passages which extend longitudinally of the plug and in non-intersecting relation to the through port. The plug casing, in one embodiment, is provided with an inlet for applying steam to the top of the plug for entrance into the steam passages and out the bottom of the plug and through a bottom opening in a casing. In another embodiment, steam may be applied through the bottom opening and into the plug passages, and a steam outlet is provided in the face of the plug through which steam may be extracted through one of the valve casing ports.