Abstract: A compact gas flow control valve has a valve body having an inlet for receiving gas pressure, to provide gas at a substantially constant delivery pressure to be delivered by the gas flow control valve, and an outlet for delivery of the gas. Flow rate of the delivered gas is controlled by a rotor. A flow control plate covering the rotor has a plurality of orifices produced by one of various processes including mechanical drilling, laser drilling, piercing, punching, and selective etching. A selector mechanism orients the rotor to permit flow only through a selected one of said orifices at such delivery pressure for delivery by the outlet. The orifices define a preselected schedule of different flow rates determined by the diameter of the respective orifices.

Abstract: A locking valve has a housing defining a fluid flow passageway, a stem bore and a lock bore intersecting the stem bore. A plug or stem may seat in the stem bore for movement between passageway opening and closing positions. A locking device is disposed in the lock bore and is arranged automatically to arrest and prevent movement of the stem upon its movement to a desired locked position such as when it closes the passageway.

Abstract: A device is described to retrofit an alfalfa valve, without modification of the valve, to convert it from manual to pneumatic control and provide means for closure of the valve if operating pressure to the system is interrupted. The device comprises a first vertical shaft with a short upper threaded portion to secure the shaft to the cover of the alfalfa valve and a lower unthreaded portion; a second vertical shaft above the first shaft and coupled thereto; a chamber including pneumatic means for raising and lowering the shafts, wherein the shafts are in the raised position when the chamber is under pneumatic pressure; a horizontal plate connected to the bottom of the chamber and having a central hole to permit the second shaft to pass therethrough; leg means to stand the plate on top of a flange upon which the cover of the alfalfa valve sits, and means to clamp the plate to the flange.

Abstract: Disclosed is a plastic lined rotatable valve. The valve includes a valve body that is formed by at least two connected together body parts or halves. Each body half is lined with an inert plastic material. The seal between the body halves or parts is provided by sealing flanges on the plastic lining. The sealing flanges are resiliently urged together, thereby to compensate for cold flow and to isolate the sealing flanges from stresses on the valve body due to uneven piping loads. The valve body halves or parts include rims about the junction where the halves or parts are joined together which form a rigid shell for the valve body, which further isolates the sealing flanges from mechanical stresses. The valve includes a plastic encapsulated valve member that is rotatable by a plastic encapsulated stem. A packing is provided for sealing between the stem and valve body.

Abstract: A valve including indicating means for indicating overtravel of an operating member beyond its normally closed position for warning that replacement of a seal is necessary. A diaphragm valve has a diaphragm of a material which withstands repeated flexing and is clamped in a unique manner.

Abstract: Device for inflating balloons, particularly balloons supported by tubular shafts, comprising a one-way valve mounted in or at one end of the shaft to be inserted into the neck of the balloon. The valve is provided externally with a projection and rings to deform the neck of the balloon elastically, and ensure the retention of the inflation pressure of the balloon. This sealing may be improved by a tapered sleeve. The valve is made of two parts joined together and forming a cylindrical cavity enclosed by two bases, of which one is smooth surfaced with a central axial hole and the other one is provided with radial ribs and a central axial hole opening into the balloon. A sealing element which may be a thin sheet, a sphere or a hollow piston with tapered element, slides freely in the cylindrical cavity. The valve can also be of a type manually inserted and placed at one end of the supporting shaft.

Abstract: Valve bodies that are generally cylindrical and are open at top and bottom are combined with flow diverters which may be combined top to bottom to permit stacking of a combination of valves for actuation together without need for separator walls between valves. These elements, together with special adapters and end plates, permit economical manufacture of a series of manually or hydraulically actuated single and multiple function valves. These and other valve body and valve element forms and flow elbows are rendered more useful by the inclusion of seal retaining elements and flow turners.

Abstract: A butterfly valve has a housing formed from two stamped sheet parts. The shaft of the valve flap is located in shaped-out parts of the housing halves. The two flanges of the housing halves are held together by a clamp, which has an inwardly open, U or V-shaped cross-section and can be secured in articulated manner by two semicircular parts and presses by chamfered inner faces on tori on the flanges. Thus, the valve can be assembled and disassembled by loosening a single screw.

Abstract: A hydraulically operated actuator for a sliding gate valve designed for use in a subsea environment. The actuator includes a manual override system that functions independently of the actuator's hydraulic piston and return spring, an externally accessible valve gate drift adjustment, an externally adjustable upstop for the actuator stem, a stem thread assembly that can be manufactured from a material different from the actuator stem to prevent or reduce the possibility of thread galling, a hydraulic control pressure porting system integral with the hydraulic cylinder to minimize space requirements, and a facility for accommodating an optional external electrical stem position indicator package.

Abstract: A top-operated, outside unloading device for a bottom discharge railway tank car is disclosed. The tank car has an outlet valve in its bottom which is opened and closed by an operating rod connected to the valve and which extends up through the interior of the tank car. The operating rod projects out through the top of the tank car and is rotated by means of a hand wheel. The upper end of the operating rod is sealed with respect to the tank car by compressible packing seals carried by a packing body surrounding the upper end of the operating rod. The packing body has a part-spherical lower end which mates with a seat surrounding the opening in the top of the tank car through which the operating rod extends.

Abstract: In a vacuum-operated power brake booster, a control housing with a poppet valve for the control of the differential pressure comprises two control housing parts slidable telescopically in relation to one another. The first control housing part is secured to the rolling diaphragm through a diaphragm plate. In the release position the diaphragm plate is in abutment on the frontal sealing surface of the poppet valve that is held by the first control housing part. On its side remote from the sealing surface, the poppet valve is furnished with a stop which bears against the second control housing part through a sleeve. The second control housing is held by the booster housing via a ring seal.

Abstract: A hydraulic distribution valve having two substantially identical, molded plastic shells which are joined at their peripheries to form the distribution valve housing. A shaft is journaled within the housing and extends through one of the shells. A rotor is coupled to the shaft and is rotatably disposed within a rotor chamber defined by the housing. Each shell additionally defines a plurality of axially disposed cavities, where at least two of the cavities of the second shell communicate with the rotor chamber. The second shell also defines an inlet which communicates through a gallery which passes through a portion of the shaft and rotor for communication between the inlet and a control port which is defined by the rotor. The shaft and rotor can be rotated to align the exhaust port with a selected cavity to permit communication between the inlet and the selected cavity.

Abstract: A valve cladding method and associated system for implementation including the steps of preforming solid insert-members (22,24) of a vitreous material (having a rheological state that varys with temperature), to generally conform in shape to the cavity walls (12, 14) that are to be clad. The insert-member is fixtured (32) within the cavity to provide a generally concentric, annular space (28) of predetermined thickness and length between the insert-member and the adjacent walls to be clad, thereby defining an activation volume. This volume (28) is filled with loose metal powder (48) and vibrated to achieve tap density for a given powder blend. The activation volume is degassed, evacuated and sealed. The valve body (10') a thus loaded, is heated to a temperature at which the insert members becomes pliable, in the range from one-half to full melting temperature of the powder.

Abstract: A method of manufacturing a cylindrical valve sleeve is provided. The method includes the steps of providing a cylindrical valve having an inner wall, an outer wall and an end shoulder disposed therebetween. The shoulder is machined to form a circumferential groove which defines a swedgeable shoulder area on the shoulder. The inner wall is broached to include a plurality of open ended longitudinal slots radially spaced about the inner wall. Next, the shoulder areas are swedged at preselected spaced positions contiguous to the end portions of the longitudinal slots to deform the preselected positions axially and radially inwardly into the slot end portions whereby the slot end portions are substantially closed relative to the inner wall of the sleeve. The preselected spaced positions are discontinuous relative to the shoulder to minimize the necessary force and resulting deformation.

Abstract: A shutoff valve has a housing which is provided in the region of a lateral mounting opening with several holding projections having free ends which extend toward a cover and form an abutment for an edge of the cover, wherein the cover is sealingly mounted in the housing by tensioning pins which are driven between the abutment of the holding projections and a cover edge formed as a counter abutment.

Abstract: In combination, a pressurized-gas container having a port and a diaphragm valve having a hollow elongated body. A flexible diaphragm is sealingly positioned in the valve. The diaphragm forms a first chamber and a second chamber in the hollow valve. A valve stem is rotatably positioned in the first chamber. A port located in the side of the valve communicates with the second chamber. A short member, affixed in the port, has a central passageway. One end of the short member is adapted to be connected to a source of pressurized gas. A second elongated member, having a central passageway, is positioned in the second chamber of the valve. One end of the elongated member is sealingly affixed to the inside of the wall of the container around the port of the container. One end of the second elongated member forms a valve seat, which is positioned near but not in contact with the diaphragm. A cup member is positioned in the first chamber of the valve.

Abstract: A subsea wellhead production apparatus including a retrievable subsea choke having a body having an inlet, an outlet extending therein from its lower surface and a collet connecting flange surrounding the lower end of said body, a passage in said body defining communication between said inlet and said outlet, a valve seat in said body surrounding communication between said inlet and said outlet, a valve member movably mounted in said body to coact with said valve seat to control flow through said communication passage an actuator for moving said valve member toward and away from said valve seat, a flowline body having first and second passages opening on a surface of the body with a collet connecting flange surrounding said surface.

Abstract: A through-conduit, double-wedging parallel seat gate valve. The valve has a monolithic body forming a spherical segment with a cylindrical flow passage and flange end connections. The body has a transverse chamber mounting a rectangular gate moved across the passage between opened and closed positions. The chamber has an obround cross section with parallel sides facing the sides of the gate and rounded ends facing the edges of the gate. Integral parallel guide surfaces on the body separate the rounded ends from the parallel sides, and these guide surfaces engage the edges of the gate. Replaceable seats about the flow passage seal to the sides of the gate. Upper and lower closure members are releasably secured on annular sealing surfaces on the body and enclose the gate within the chamber. The flanges and body can have the same radii as the bar stock from which the body is machined. The guide surfaces are tangents at the intersection of semicylindrical grooves in the parallel sides with the rounded ends.

Abstract: A locking valve construction including a housing, a valve member in the housing, a fluid inlet and a fluid outlet in the housing, a valve member rotating key for rotating the valve member to an open position for selectively effecting communication between the fluid inlet and the fluid outlet, a holding member effectively mounted on the housing for holding the housing against rotation relative to a base when the valve member is being rotated by the valve member rotating key, and mounting structure for mounting the housing on the base for permitting the housing and the valve member to rotate as a unit in the event that the holding member is rendered inoperative to thereby prevent movement of the valve member relative to the housing to an open position.

Abstract: A pressure regulator is disclosed which includes a valve housing with a sliding piston member defining inlet and outlet chambers. A valve seat in conjunction with the piston member forms a valve controlling fluid passing from the inlet to the outlet chamber. The piston member includes a piston and piston plate, the piston plate engaging the valve seat to control fluid flow. The diameters of the chambers and the piston are selected so that the inlet pressure causes no net force on the moving piston member, and does not contribute to either the opening or closing of the valve. On the outlet side, the piston plate is sealed with respect to the valve seat at a diameter which is less than that of the piston plate, such that the outlet pressure creates a net force urging the piston plate to engage the valve seat. The resulting unbalanced output force on the member is opposed by coil spring urging the member upward to unseat the plate from the valve seat.

Abstract: A disposable ball valve wherein the union is adhered inside the valve body of the valve housing so as to form the valve chamber for rotatably receiving the ball therein. On the surfaces of the valve body and the union facing the ball, annular grooves of rectangular cross-sections are formed. Within the annular grooves, there are fitted annular seating rings made of polytetrafluoroethylene backed by resilient rubber rings. Thus, the ball and the union do not disconnect from the valve housing by applied fluid pressure, and the sealing performance of the ball valve can be maintained for a long period. In addition, contact surfaces of the valve housing and the tubular caps are formed in the shape of complementary spherical surfaces slidable to each other. Thus, even if the pipelines are deviated from the axis of the flow passage by means of external forces, the ball valve substantially does not receive such excess forces.

Abstract: A pneumatic valve uses a body made of a synthetic material with a plurality of internal fluid ducts opening onto a face of the body via respective orifices. A metal plate is arranged in contact with the aforesaid face and is provided with sockets aligned with respective ones of the duct orifices and each containing a tapped hole capable of receiving a threaded connecting pipe. Resilient O-rings are used to provide a fluid-tight seal between the sockets and the ducts.

Abstract: A method of manufacturing a valve sleeve which is combined with a valve rotor to form a hydraulic rotary valve comprises a first step of expanding one end of a cylindrical member, a second step of forming a plurality of axial grooves in the internal surface of the cylindrical member while leaving its opposite ends intact, and a third step of restoring the expanded portion to its original diameter which it assumes before the expanding step.

Abstract: A valve body includes a chamber for the flow of fluid between an inlet and an outlet thereto. The chamber includes an upper portion with an opening therethrough and a lower portion including a valve seat between the inlet and outlet. A bonnet is positioned in the chamber upper portion and is connected to the valve body and extends upwardly therefrom. The bonnet includes a passageway, and a stem is positioned in the passageway for longitudinal movement into and out of sealing relation with the valve seat. An air operator is connected to the upper end of the stem and is connected to a source of fluid under pressure, such as compressed air, which is supplied by remote control to the air operator to control reciprocation of the stem to open and close the valve. The air operator includes a base connected to the bonnet in surrounding relation with the stem and positioned in spaced relation with a piston connected to the upper end of the stem to thereby form a fluid chamber.

Abstract: The invention concerns a fluid distribution device of the type comprising on the one hand, a metallic body with a borehole, in the thickness of which a plurality of channels for the circulation of the fluid is provided, and on the other hand, in the bore of the body a core mobile in rotation or in translation capable of establishing communication between said channels, when the core occupies at least two predetermined positions. The body of the device is constituted by the tight and inseparable joining of at least two elements joined together by contact surfaces of an exactly complementary configuration and at least certain of the channels of the body consisting at least in part of grooves cut into at least one of the contact surfaces.

Abstract: A blowout preventer of the cross ram type has at least a first and second pair of rams which are in the same plane or on the same level. The rams are reciprocable in insertable sleeve-like ram guideways which are replaceable to accommodate different types of rams; for example, a pipe ram or blind ram, or different configurations of rams from different manufacturers. This provides a blowout to preventer which has flexible functions and a low stack height and low weight. A spherical shape also provides lower weight, ease of guideway insertion, and reduction of stress concentrations.

Abstract: A rotatable unitary ball valve is provided, comprising, in combination:(1) a unitary valve housing of plastic material defining a ball valve chamber, intercommunicating first and second fluid ports and first and second fluid passages, and a threaded end connector socket in one passage;(2) an externally threaded end connector integral with the valve housing, permanently fixed in the end connector socket, and adapted for attachment to a fluid line; and the other fluid passage being adapted for attachment to a fluid line;(3) a ball valve having a through fluid passage intercommunicating the first and second fluid passages of the valve housing only in the open position of the valve, and disposed in the valve chamber for rotation between open and closed positions; closing off intercommunication between the first and second fluid passages via the ball valve chamber and the ball valve through fluid passage in the closed position, and making such intercommunication in the open position;(4) at least one sealing means

Abstract: Pressure regulating valves intended primarily for use as pressure regulating shut-off valves are disclosed. The valves utilize a simple piston assembly operative between a valve open position and a valve closed position responsive to a spring biasing the assembly toward the open position against an opposite force proportional to the outlet pressure. The piston assembly has only a single seal to seal the assembly against leakage, with a shut-off mechanism operative on only a 180 degree rotation thereof being cooperatively disposed with respect to the piston assembly so as to not require any additional seals. Embodiments having a fixed pressure regulation and a manually adjustable pressure regulation are disclosed.

Abstract: An improved faucet device with a swivel spout and an inline valve cartridge, comprising a valve body consisting of two substantially identical molded plastic parts and including a molded plastic sleeve valve member and a pair of combination valve seat and seal members secured inside the valve body to provide a seal with the movable sleeve valve member.

Abstract: A multi-port directional valve and subplate for mounting the valve in which the valve body comprises a housing having a plurality of parallel, laterally spaced slots formed in its inner surface; a plurality of individual port modules each having a pair of parallel side walls, a bottom surface, a spool bore, a longitudinal port bore which connects the bottom surface and the spool bore, an outer surface, and a rib formed on the outer surface such that the outer surface of each module is complementary with the inner surface of the housing; a spool which changes the operating position of the valve and a pair of actuator housings each connected to one end of the cover housing and mounted on the subplate; and the valve body is mounted on the subplate to align the module ports with ports in the subplate.

Abstract: A method of manufacturing faucets and spouts, faucet inserts and faucets and spouts manufactured by the method. The faucet or spout includes an upper housing plate and a lower housing plate, a peripheral flange being provided on each of the housing plates such that the flanges mate with a seal disposed betweem them in fluid sealing relationship, the housing plates having spaced apart surfaces extending from their respective flanges to define a chamber. The faucet inserts include a valving member rotatably received within a housing member, the housing member having an internal conical surface adapted for mating engagement with an external conical surface of the valving member, the valving member having a port adapted to be reversibly aligned and misaligned with a port in the housing member for selectively allowing and shutting off fluid flow.

Abstract: A valve comprises a valve housing with a detachable lid, a spindle passing through the lid and clamping means for clamping the lid to the housing. The clamping force of the clamping means acts mainly in the axial direction of the valve spindle. The lid is secured between the valve housing and a clamping member. The clamping force is transmitted to one side of the lid from the clamping member and to the opposite side of the lid from the valve housing via a gasket member. The valve housing comprising guiding means for guiding and locking the clamping member into a locking position. The guiding means requires subsequent movements, one in the axial direction of the spindle and one in the form of a rotational movement around the spindle. The gasket member is elastically compressible by at least 5%, thereby maintaining a continuous sealing contact pressure between the gasket member and the lid as well as between the lid and the clamping member.

Abstract: A valve housing has butt pipes for connection to a pipeline for defining therewith a passage for a flow of a fluid being conveyed, preferably of a slurry. A plurality of ribs are provided along the passage on the lower portion of the wall thereof, each rib extending transversely of the passage. Each rib is of a tear-shaped configuration in its section taken along the longitudinal centerline of the passage, the enlarged portion of the rib facing toward the incoming flow of a fluid being conveyed.

Abstract: For providing a minimum dimension and material consumption relative to the respective nominal width and optimal strength and flow conditions, an intermediate housing part of a check valve is composed of two semispherical shell halves connected by beam welding along a plane extending transverse to a throughflow axis, the shell halves include hollow connecting pieces and also half rings of a cover flange formed an upper housing opening, the intersecting point of the separating plane with the throughflow axis forms a sphere center of the intermediate housing part, a third part is formed by a pipe bend which has a truncated-cone-shaped chamfered end portion with which it is introduced into a respective inner conical bore from the supply side of the intermediate housing part and welded by an electron beam and which carries at its end opposite to the upper housing opening a valve seat ring, wherein the center of a spherical deflecting portion of the pipe bend at least approximately coincides with the center of the

Abstract: An improved valve is disclosed. In the preferred and illustrated embodiment, the valve utilizes a flat disk within a valve body, the disk supporting a peripheral groove having bearings therein for alignment and to enable rotation, and further includes pressure balanced opposing faces and receives a valve seat therein. The flat disk and body arrangement reduces the size of a large valve and reduces the wear occurring on the valve seat and seal mechanism. Alternate embodiments and configurations are disclosed.

Abstract: A fluid injector particularly for injecting fluid into a furnace comprises a housing structure having inlet and outlet ports; a pair of fluid connections and means defining passageways for fluid between the ports and respective ones of the fluid connections; and valve means for controlling the flow of fluid along said passageways; a body assembly including an elongate tubular portion having provision for receiving a nozzle at its outer end; a pair of fluid connections and means defining passageways for fluid between each of the fluid connections and said outer end of the tubular portion; said housing structure providing a support for the body assembly and including fluid pressure means for displacing the assembly relative to the housing between a first position, in which the fluid connections on the body assembly are coupled to respective fluid connections on the housing structure, and a second position, in which the fluid connections on the body assembly are disconnected from the fluid connections on the hou

Abstract: An electrovalve includes two interlockable parts, one rigidly connected to a core, and the other carrying a single valve member. Two identical superimposable parts receive the two interlockable parts. The two superimposable parts have seats for the valve member and provide channels for connecting ports of the valve body. The valve body receives the assembly formed by the stacking of the two interlockable parts and of the two superimposable parts.

Abstract: A molded polyethylene valve body has a flow passage connecting an inlet with an outlet of the valve body. A valve seat formed integral with the valve body surrounds the passage and a plastic valve disc is rotatably positioned in the passage for movement into and out of sealing relation with the valve seat to effect closing and opening of the passage between the inlet and outlet. A valve stem is nonrotatably connected at one end to the valve disc and extends through the valve body and projects upwardly therefrom to an upper end portion. An actuator cap is nonrotatably connected to the valve stem upper end portion. An external valve neck portion surrounds the upper end portion of the valve stem and is positioned on the outer surface of the valve body. The neck portion is adapted to rotatably receive and support the actuator cap. A pair of clamp-like leg members of the neck portion extend circumferentially around the surface of the valve body to connect the neck portion to the valve body.

Abstract: A manual slide valve comprises a housing having a valve slide slidable within the housing. The housing is constituted of two sections each including projections and recesses cooperable with each other and with the slide valve such that when the slide valve is disposed within the housing, the housing sections are interlocked with it and with each other against separation, and when the slide valve is removed from the housing, the housing sections are free and may be separated from each other. The control device may also be embodied in an electrical switch wherein the slide member is the movable electrical contact.

Abstract: A bonnet is locked to the body of a valve into which the bonnet screws by a sheet metal bonnet lock which includes a portion that will mate with facets on the bonnet or with the sides of the valve body. Another portion of the bonnet lock is then deformed to mate with the other of the bonnet facets or valve body sides. The portion of the bonnet lock that mates with the facets on the bonnet circumscribes the bonnet such that one portion of the bonnet lock is fixed to the bonnet and the other portion is fixed to the valve body following deformation of the bonnet lock to prevent the bonnet from turning relative to the valve body.

Abstract: A hydraulic control package or assembly (30) for use in a marine steering system (10) having a steering helm pump (12) with port (14) and starboard (16) fluid outlets and a return inlet (18) for hydraulically actuating a piston (22) in a hydraulic cylinder (20) having port (24) and starboard (26) inlets for moving the piston (22) back and forth in the cylinder (20) in response to fluid delivered from the helm pump (12). A fluid reservoir (32, 34, 36) is closed and pressurized with air and is defined by an open ended tube (32) having a cap (34) sealing the top end of the tube (32) and a valve body (36) sealing the bottom end of the tube (32). The valve body (36) houses the control valve means for controlling the fluid flow in the system between the helm pump (12) and the actuating cylinder (20). The cap (34) and valve body (36) are held against the respective ends of the tube (32) by tie rods (50).

Abstract: A steam trap includes a casing having an inlet and an outlet, a cover secured to the casing to enclose a condensate reservoir in the casing and a trap unit having a valve closing and opening by thermal expansion and contraction of a thermoelement such as thermowax in response to temperature in the reservoir and a counter spring whose spring force acts against the thermal expansion of the thermoelement. The disclosed steam trap comprises connection means for connecting the cover and the trap unit only by relative movement therebetween and a support spring arranged between the cover and the thermoelement. The steam trap is therefore, conveniently adaptable to change in used conditions by suitable selection of trap units having various temperature characteristics previously prepared and is capable of effectively replacing its trap unit with a new one for repairing.

Abstract: The cover is fixed without the use of bolts. On each side thereof, an almost closed groove is defined in one half by the peripheral portion of the cover and in the other half by the peripheral portion of the body. This groove extends only in a part of the major length of the valve and receives two round locking bars which are inserted in the groove by way of a center cavity. An outer sealing element hermetically closes the gap between the cover and the body and the two cavities. Application of the device in buried valves exposed to corrosive atmospheres.

Abstract: A gas valve device includes a pressure regulator and two solenoid operated valves connected fluidically in series. The valve body therein is selectively cored and machined so as to provide a gas valve device which is compact in physical size, inexpensive to produce, and versatile in that it provides a choice of several gas outlet directions.

Abstract: The butterfly valve comprises a valve body traversed by a passageway and a closure element or butterfly valve disk placed transversely with respect to the passageway. An annular bearing surface of the valve disk is intended to bear on a valve seat placed within the passageway. The valve body is constituted by an annular member provided with a chimney in which an operating shaft is mounted. The annular member is supported in leak-tight manner by a bearing ring having a greater thickness in the radial direction than the wall of the annular member. The bearing ring is inserted between the two end portions of the piping system and forms part of the valve body under operational conditions.

Abstract: Valve, in particular for the sanitary engineering field, with two flat and smoothened plates, one on top of the other, held in a housing and movable towards each other as a valve element whereby the plates have one or more through-apertures for one or more media.To simplify installation and reduce costs, the two plates are combined into one pack with appropriate sealing and sliding elements, the pack being bedded in a housing formed from two semi-monocoques having apertures for a valve actuating element and the inlet and outlet lines capable of insertion into an inlet and outlet flow device with pre-tensioning, whereby the contact surfaces of the two semi-monocoques are matched to the individual thickness of the pack by material deformation and are inseparably connected the one with the other.

Abstract: An arrangement wherein fluid pressure passageways opening into inner chambers of a cylindrical housing of a valve device, are formed between abutting faces of two axially aligned cylindrical portions comprising the housing. The opening or passageway between the abutting faces is formed by complementarily engaging saw-like teeth formed around the annular abutting faces of the two housing portions. This arrangement provides a smoother surface over which the sealing gasket on a valve member must ride, thus resulting in less wear and tear on the gasket.

Abstract: The invention contemplates an electrically operated valve construction for control of fluid flow wherein an actuator module is adapted for detachable connection to a valve-body module which contains the valve member to be automatically positioned by a driver element of the actuator module. All electronic components for moving the driver element are self-contained in the actuator module, and these elements include a fluid-sensing transducer producing an electrical output, for closure of the control loop. The transducer has sealed exclusive exposure to fluid in the valve-body module via a special port within the confines of the interface between the modules, when the modules are assembled to each other; this port communicates directly with that part of the valve-body passage which is on the downstream side of the valve member.

Abstract: A valve apparatus for simultaneously shutting off or opening two gas supplies comprises two valve bodies for mounting a distance apart from each other. Each body has an internal conduit therethrough for the passage of gas. A lift valve within each conduit closes or opens the conduit with reciprocation of the valve. The lift valve has a valve stem engagable externally from each valve body. A pair of spaced-apart, parallel shafts are rotatably journalled at each end in apertures in the valve bodies and are axially slidable within the apertures, permitting the distance between the valve bodies to be varied. A first lever is connected to a first of the shafts and has a member connected thereto for engaging the valve stems, and a detent. A second lever is connected to a second of the shafts and has a notch for engaging the detent when the first lever is pivotted from a shut-off position to an open position where the member engages the valve stems to open the lift valves.

Abstract: The valve of U.S. Pat. No. 3,774,877 in which have valve operating pistons are mounted in a tubular sleeve received in a bore in a two part valve body, one part containing the connection for P1 and the other part containing the connection for P2 and the valve port.