Abstract: A valve body (12) has an inlet opening (22) and an outlet opening (24) interconnected by a fluid passageway (28, 30) having a flow aperture (34). The valve comprises a diaphragm (14) (typically of the duckbill type) that is located across the flow aperture (34) and has slits in a collapsible aperture (39). This prevents backflow from the outlet to the inlet. The valve has an actuator (16) in the form of a plunger for influencing the fluid flow. Also disclosed is a pressure release valve whereby a high pressure on the outlet side can partially collapse the aperture (39) to temporality vent fluid from the high pressure outlet side.

Abstract: A valve assembly for installation into deck-mounted tubs includes a valve body, a top plate that engages with the valve body, a bottom plate, and an adjustment member that bears against the valve body and engages with the bottom plate. The adjustment member is accessible from above the deck and moves the top plate, valve body, and bottom plate relative to each other. This allows the valve assembly to be tightened completely from above the deck even if the bottom portion of the assembly is inaccessible. The adjustment member is a jack screw or other threaded member that can be adjusted with a conventional screwdriver, eliminating the need for specialized installation tools.

Abstract: A valve including a valve body, the valve body providing an inlet and an outlet, a valve seat between the inlet and the outlet, a valve member, the valve member and valve seat being relatively movable to control flow through the valve, the valve member engaging the valve seat to prevent flow through the valve and disengaging from the valve seat to permit flow through the valve.

Abstract: A control valve having a seat ring assembly constructed from a unitary piece of material is disclosed. The seat ring assembly may include a base which serves as a valve seat for the valve plug of the valve, and which includes a plurality of exterior threads adapted to rotatably attach to a plurality of interior threads provided within the valve body. The seat ring assembly may also include a post-guided bearing surface to maintain alignment of the valve plug to the valve seat. The seat ring assembly can be secured to the valve body simply by threadably attaching the elements. Moreover, by providing the valve seat and the guide surface as integral parts of the seat ring assembly, manufacturing costs and maintenance requirements are reduced and subsequent seal leak performance is increased.

Abstract: A sleeve valve has a valve body and a flow passage through the valve body. The flow passage has a longitudinal axis, a valve plug positioned therein, and a slidable sleeve received therein. The sleeve is movable in an axial direction between an opened and a closed position relative to the valve plug. An interchangeable first valve plug end portion is removably mounted to part of the valve plug in the flow passage. The first end portion is removable and replaceable with another second valve plug end portion to change at least one performance characteristic of the sleeve valve. The valve plug of the sleeve valve can be selectively interchanged with a plug selected to provide one or more desired performance or flow characteristics, whether to reduce the effects of wear or to change the valve performance.

Abstract: Valves, particularly useful for controlling flow of heat transfer fluids in various heating, air conditioning and ventilation systems, are provided. The valves are of the curtain valve type and operate at very low torque and provide easy assembly and repair. The valve or actuator has an adjustment for the flow coefficient. A disclosed valve comprises a valve body having an inside surface, an inlet port comprised of an opening through the inside surface and enabling fluid flow into the valve body, an outlet port comprised of an opening through the inside surface and enabling fluid flow from the valve body, and a curtain valve closure. The closure adjustably controls fluid flow through the outlet port and is of a modular design including a flexible diaphragm held in an insert positioned at least partially within the outlet port. The insert has at least one dimension larger than a mating surface on the internal surface of the valve body.

Abstract: A valve assembly (112) includes a first member (120) having a cavity (136). A poppet (142) is located in the cavity (136) in the first member (120). The poppet (142) is axially movable relative to the first member (120) within the cavity (136). A poppet seat (138) has a passage (148) for conducting fluid toward the cavity (136). The poppet seat (138) engages the first member (120) and extends axially into the cavity (136) in the first member. The poppet seat (138) is axially movable relative to the first member (120). The poppet (142) is biased into engagement with the poppet seat (138) to close the passage (148) in the poppet seat. A locking member (172) engages the poppet seat (138) and the first member (120) to fix the poppet seat to the first member in any one of a plurality of axial positions relative to the first member.

Abstract: A valve seat assembly includes a valve body defining a cavity having an axis, the cavity having a threaded receiving portion and a conical contact surface substantially concentric with the threaded receiving portion. The valve seat assembly further includes a seat ring formed about a center axis having a threaded portion to engage the valve body threaded receiving portion. The seat ring also having an outer surface including a curved contact surface sized to sealingly engage the conical contact surface wherein the curved contact surface is slidable over the conical contact surface to position the seat ring so that the seat ring center axis is substantially aligned with the cavity axis.

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 gate valve comprises a valve body, a stem bore which extends through the valve body, a stem which is disposed in the stem bore and which includes a first stem portion that is sealed to the stem bore, a second, smaller diameter stem portion that is sealed to the stem bore, and a gate pocket that is located between the first and second stem portions, and gate which is disposed within the gate pocket between the first and second seats.

Abstract: A fuel injection nozzle is proposed, in which an inner nozzle needle and an outer nozzle needle can be actuated independently of one another. Upon opening of the outer nozzle needle, a stream of fuel is injected into the combustion chamber in the direction of the longitudinal axis of the fuel injection nozzle, while upon opening of the inner nozzle needle, the fuel is injected laterally into the combustion chamber.

Abstract: A replaceable valve seat ring for a valve assembly has an annular ring body and an open flow passage extending through the ring body. A seating surface is provided on the ring body adjacent one end of the flow passage. A tool accepting region of the flow passage is formed concentric with and at least partially along the flow passage. The tool accepting region is adapted to receive a standard tool head therein for installing and removing the valve seat ring.

Abstract: A nozzle insert that is capable of being irreversibly attached to a needle valve tube such that the resulting needle valve member can be used in a nested needle valve configuration for a dual mode fuel injector.

Abstract: The invention relates to an air blast device comprising an air flow control device disposed between an inlet conduit and an outlet conduit. The control device comprises an evacuation valve (16) that controls the flow of the air contained in a rear chamber to the outlet conduit (5). The air contained in the rear chamber serves to hold a main valve (2A) in its seat (2B). This blast device is characterized in that a seat (17) of an evacuation valve is located at the level of a front face (2C) of the main valve (2). In order to evacuate air contained in the rear chamber, evacuation valve moves toward the front in the direction opposite that of the main valve (2A) as it leaves its seat (2B).

Abstract: A valve seat includes a seat body with an inlay and at least one groove. The seat body has a passage which extends from a first opening to a second opening in the seat body. A channel is located in the seat body adjacent the first opening and extends around at least a portion of the passage. The inlay is located in at least a portion of the channel. The groove extends along at least a portion of an inner surface of the passage from the first opening towards the second opening.

Abstract: An improved seat ring, valve body, and seat ring valve assembly have self-aligning characteristics that reduce leakage without the need for an unacceptably high level of assembly torque. The seat ring includes at least one annular thrust bearing surface rim for receiving a valve plug to open and close the valve. The seat ring further includes threads positioned on its exterior surface for mating with threads in the valve body to provide a secondary seal of the seat ring. In order to prevent unacceptable leakage, a point of contact is provided to seat on an angled body contact surface of the valve to form a superior primary contact seal. The seat ring valve assembly reduces torque requirements, properly aligns the seat ring within the cavity, and reduces leakage.

Abstract: A diaphragm valve assembly comprising a body defining a valve chamber and first and second passageways through said, a removable, annular valve seat installed in the valve chamber around of said passageways, seat holding means comprising a seat holder shaped to surround said valve seat, a flexibly resilient diaphragm having a valve closing portion and means for holding the diaphragm in position in the valve chamber. The resilience of the diaphragm urges said valve closing portion away from the valve seat. Selectively operable driving means drive the valve closing portion of the diaphragm into contact with the valve seat for closing the valve. A protruding, cylindrical rim portion around said one passageway, and said seat holder define an annular recess adapted to receive the valve seat such that said valve seat is held between said seat holder and said rim portion.

Abstract: An improved seat ring, valve body, and seat ring valve assembly have self-aligning characteristics that reduce leakage without the need for an unacceptably high level of assembly torque. The seat ring includes at least one annular thrust bearing surface rim for receiving a valve plug to open and close the valve. The seat ring further includes threads positioned on its exterior surface for mating with threads in the valve body to provide a secondary seal of the seat ring. In order to prevent unacceptable leakage, a point of contact is provided to seat on an angled body contact surface of the valve to form a superior primary contact seal. The seat ring valve assembly reduces torque requirements, properly aligns the seat ring within the cavity, and reduces leakage.

Abstract: A valve seal structure enabling the replacement of a metal seal ring, comprising a main body, a metal seat ring prepared separately from the main body to seal a flow channel of the main body, a set ring assembling the metal ring seat to the main body at the periphery of the flow channel in a detachable manner, a first elastomeric ring sheet to seal the boundary between the metal seal ring and the main body and a second ring sheet to seal the boundary between the metal seat ring and the set ring.

Abstract: Method and apparatus for configuring a pressure relief valve to have a desired internal orifice size. A population of nominally identical inserts are provided having different internal orifice diameters. A resilient seal ring is placed upon a selected insert and both are inserted into a cup-shaped seat body to form a valve seat assembly. The valve seat assembly is secured within a housing of the pressure relief valve in facing relationship to a moveable piston assembly which is biased against the seal in a normally closed position. When a new internal orifice size is desired, the insert is removed and replaced with a new insert having the new desired orifice size. No changes are necessary in the remaining components. The resilient seal preferably comprises a stiffener ring of rigid material surrounded by an annular ring of resilient material.

Abstract: A replaceable valve seat ring for a valve assembly has an annular ring body and an open flow passage extending through the ring body. A seating surface is provided on the ring body adjacent one end of the flow passage. A tool accepting region of the flow passage is formed concentric with and at least partially along the flow passage. The tool accepting region is adapted to receive a standard tool head therein for installing and removing the valve seat ring.

Abstract: A valve seat includes a seat body with an inlay and at least one groove. The seat body has a passage which extends from a first opening to a second opening in the seat body. A channel is located in the seat body adjacent the first opening and extends around at least a portion of the passage. The inlay is located in at least a portion of the channel. The groove extends along at least a portion of an inner surface of the passage from the first opening towards the second opening.

Abstract: The present invention is directed to a compact and modular gate valve comprising an elongated body which comprises first and second ends, a hole which extends longitudinally between the first and second ends, a first opening which communicates with the hole proximate the first end, a second opening which communicates with the hole proximate the second end, and a bore which extends transversely through the body and intersects the hole; a first seat which is mounted in a first intersection of the bore with the hole and a second seat which is mounted in a second intersection of the bore with the hole, the first and second seats each including a passageway that aligns with the bore; a valve stem which is slidably positioned in the hole and which includes first and second piston portions that are separated by a gate portion, the stem being movable between an open position in which a hole in the gate portion is aligned with the passageways and a closed position in which the hole is offset from the passageways; and

Abstract: A normally closed, two-way ultra-high-pressure valve is comprised of a stem protruding beyond the outer surface of a valve body and extending inwardly toward and coaxially through a stationary seat therein, which separates the high-pressure inlet fluid from the low pressure outlet port, the stem beyond the seat enlarging to a diameter significantly greater than the through-hole. The conical surface is forced back against the hole in the seat by inlet fluid pressure creating the valve seal. External force exerted on the aforementioned protruding stem at the opposite end of the body separates the conical surface away from the seat thus opening the valve.

Abstract: A fluid control valve, and a seat ring for use in a fluid control valve, have a low pressure drop ratio factor, lessening the pressure reduction across the operating valve. The low pressure drop ratio factor is achieved by modifying the seat ring inlet to form an entrance nozzle passage, which, in combination with a long, widening outlet passage, enables superior performance in valves incorporating the seat ring.

Abstract: A gate valve for controlling fluid flow through a housing is disclosed. The gate valve includes a frusto-conical shaped internal cavity having a fluid inlet and a fluid outlet formed in the wall thereof. Fluid flow through the cavity (from inlet to outlet) is transverse to the direction of the taper of the frusto-conical cavity. A gate including a frusto-conical portion is disposed within the housing. The frusto-conical portion of the gate may be moved transversely through the fluid flow passing from the internal cavity inlet to the outlet. The frusto-conical portion of the gate is adapted to seat against the frusto-conical shaped internal cavity to block fluid flow there through. The gate does not contact the seat until the point at which all fluid flow is shut off. This reduces wear on the gate and the seat and promotes laminar flow through the valve during the process of closing the valve.

Abstract: An inline check valve having a piston member and a seat in a valve body having a larger diameter at the end thereof away from the piston. The seat is retained within a groove by a seat retainer which prevents removal of the seat from the groove without deformation of the seat.

Abstract: The invention is a pin valve having a detachable valve body cover which makes the valve stem assembly accessible from the end of the valve in which the valve stem protrudes. The removable valve body cover can be replaced independently if this end of the valve is damaged. The valve body cover also has a valve seat which is more accessible and is more easily machined. The valve body cover is typically adapted to accommodate an allen wrench type tool to simplify removal and reattachment. The invention eliminates the need to disconnect the valve at the second open end when replacing the valve stem assembly.

Abstract: In an electromagnetic valve, a seat member has a protruding portion having two parallel surfaces provided in the seat member. When the seat member is fixed to the base member by inserting molding, the two parallel surfaces of the protruding portion may be put between projecting portions of a pin of a molding die. As a result, the fluid passage of the seat member may be easily positioned to correspond to an opening of the base member. Further, after molding, the seat member may be prevented from rotating in the base member since the parallel surfaces are partly covered by resin of the base member.

Abstract: Valve arrangement, in particular as pulse width modulated expansion valve of a refrigeration system, comprising the following elements: a valve body (1) with a passage opening (5), an armature tube (2) which is inserted into one end of the passage opening (5), an armature (3) which can be moved back and forth in the armature tube (2), a stationary armature core (4) which is inserted into the outwardly lying end of the armature tube (2), a restoring element (22) which is active between the movable armature (3) and the stationary armature core (4), a closure element (18) which is carried by the movable armature (3) and which cooperates with a passage opening (17) for opening and closing the valve arrangement as well as comprising a magnetic coil for actuating the valve arrangement, with a ring space (19) being formed between the armature tube (2) and the movable armature (3), the opening cross-section of which is dimensioned in such a manner that the space (20) which is formed between the movable armature (3) a

Abstract: The invention is a pin valve having a detachable valve body cover which makes the valve stem assembly accessible from the end of the valve in which the valve stem protrudes. The removable valve body cover can be replaced independently if this end of the valve is damaged. The valve body cover also has a valve seat which is more accessible and is more easily machined. The valve body cover is typically adapted to accommodate an allen wrench type tool to simplify removal and reattachment. The invention eliminates the need to disconnect the valve at the second open end when replacing the valve stem assembly.

Abstract: A system for sealing a head end of a cylinder to prevent a material flow through the cylinder. An o-ring inside the cylinder surrounds a piston when the piston is in a closed position inside the cylinder to prevent material from leaking into the cylinder around the piston. The o-ring is held in position by a groove inside the cylinder wall proximate a head end of the cylinder. A retainer ring has a first end held in place by a step protruding from the cylinder wall and a second end extending into a second end of the o-ring. The retainer ring applies a force to the retainer-ring which holds the o-ring inside the groove. The o-ring also applies a force to the retainer ring holding the o-ring in place.

Abstract: A valve seat arrangement that uses a TEFLON valve seat. The seat is held in place and kept from cold flowing in undesired ways by an outlet guide and a retainer. The valve seat arrangement is assembled using interference fits to avoid damage to the TEFLON seat. To overcome technical difficulties associated with the interference fit, a particular method of assembly is used. Specifically, the seat is heated and mounted on the outlet guide. Once the guide/seat assembly returns to ambient temperature, it is immersed in liquid nitrogen to force it to shrink. After removing the guide/seat assembly from the liquid nitrogen, the retainer is mounted thereon and the assembly is allowed to return to ambient temperature, thereby achieving another interference fit. If the retainer were heated to force it to expand, its temperature upon mounting on the seat would damage or destroy the seat, causing leakage through the seat.

Abstract: A rotary valve provides a casing have an inlet and an outlet and a shaft mounted plug that selectively covers the inlet. A seat ring having an inner seating shoulder that is eccentric relative to the body bore of the inlet is provided. The seat ring can be rotated to accommodate variations in the center of the plug for more accurate seating. The plug can be provided with a secondary plug that selectively covers the outlet and that moves relative to the outlet in response to movement of the shaft. The outlet can include a low noise structure having, in one embodiment, a set of tapered slots that vary the flow cross section along the flow path.

Abstract: Straight line flow rotary valves with the valve member flow passage (21) turned away from the pipeline flow axis (22), to dispose the valve internals to an access port (50) located downstream on the same flow axis of the valve member (11). Another embodiment is used in place of pipe elbows where the rotary valve internals are accessed through a port (50) on the same flow axis (22) as the upstream pipe. In both valve body embodiments, the flow is turned again, downstream of the valve member (11), to communicate with the connecting downstream piping which, in the first embodiment is along the same axis as the upstream pipe (22), and in the second embodiment, is on a different axis (39), and, is generally 45 or 90 degrees turned from the upstream pipe.In both embodiments the flow turns in a component (12) installed, through the body access port (50). In all embodiments the turning component also services as the pressure boundary access cover over the body opening (50).

Abstract: In the case of cast housing bodies with highly stressed regions of the housing, and in particular in the case of housings for valves with control pistons, the regions of the housings subjected to high stresses are developed as independent parts from a material which withstands the stressing and forms a cast unit together with the housing body.

Abstract: An expansion valve comprises an orifice 30 formed in a valve body 10 and a valve member 9 fixed to a movable member 18. Movement of a diaphragm 4 is transmitted to an actuating rod 17 via a member 16, and the actuating rod 17 actuates the movable member 18 to control the opening rate of the path between the valve member 9 and the orifice 30. A seat nut member 100 affixed to the orifice 30 has a large-diameter hole 108 and a small-diameter hole 110 directly communicating with each other. Hot pressurized refrigerant introduced into the large-diameter hole 108 heats a seat portion at the exit of the large-diameter hole, and prevents moisture in the refrigerant from freezing there.

Abstract: A nozzle assembly (11) of an adhesive dispensing valve (10) includes a first valve (32) adjacent a discharge orifice (34). The first valve (32) opens to permit the flow of adhesive therethrough and closes to terminate the flow of adhesive in response to respective first and second states of the valve operating module (14). The adhesive dispensing valve (10) has a separable nozzle plate (102) that includes the first valve seat (100) and the discharge orifice (34) and is coupled to a nozzle body (72) with a mounting cap (104). A secondary valve (146) is located upstream of the first valve (32) and permits adhesive to flow therethrough in response to both of the first and second states of the valve operating module. However, as the mounting cap (104) and nozzle plate (102) are removed, the secondary valve (146) automatically engages its valve seat (94), thereby terminating the flow of adhesive while the nozzle plate (102) is removed from the valve body (16).

Abstract: A dual ball valve assembly which includes a one piece tubular valve housing having box connections at each of a first end a second end. A first ball valve is positioned between a first valve seat and a second valve seat at one end. A second ball valve is positioned between a third valve seat and a fourth valve seat at the other end.

Abstract: The invention is directed to a joined type valve seat which is joined into the cylinder head of an aluminum alloy in an internal combustion engine by resistance welding and, in particular, to an improved joined type valve seat superior in strength, rigidity, and abrasion resistance, whereby no cracks are caused when running the engine or when joining the valve seat to the engine block by resistance welding. The valve seat is made of a material having a tensile strength of 300 MPa or above, a radial crushing strength of 500 MPa or above, an elongation of 0.6% or more, a thermal conductivity of 15 W/(m.multidot.K) or above, a coefficient of thermal expansion of 10.times.10-.sup.6 (1/K) or above, and an electric resistivity of 50 .mu..OMEGA..multidot.cm or below.

Abstract: A safety shut off valve has a tubular body with an axial guide therein. A poppet is secured to a shaft slidably supported by the axial guide. A tubular seat received within the tubular body has a seating surface against which the poppet seats when in the closed position. The body including a stop member that engages a plunger portion extending from the poppet to hold the poppet open. The body having a circumferential area of weakness therearound so that if the body is severed along the area of weakness, the stop member is removed and the poppet is allowed to close to prevent fluid flow through the body.

Abstract: A valve has removable internal components including a disc, an orifice plate, and guides for engaging and guiding the disc. The internal components are removably secured to a valve seat plate by tee bolts. The seat plate is drilled, bored, or machined to include a plurality of cavities. Each cavity has a cantilevered projection extending over avoid in the cavity, and a slot is formed in each projection to form a tee slot for receiving the tee bolt. Each tee bolt has a head which is slipped into the void in the cavity so that the head engages the cantilevered projection while a shank of the tee bolt extends outward through the slot. The orifice plate has bolt holes for receiving the tee bolts, and an opening in the orifice plate is aligned with a passageway through the valve. A nut is tightened onto the shank of each tee bolt. After extended service, the tee bolts are still easily removable and replaceable, and the tee bolts can be aligned with bolt holes in a replacement orifice plate.

Abstract: A butterfly valve has a disc which is pivotally mounted inside the passage through the housing and movable between open and closed positions. In its closed position, a seal is established between the valve housing and the disc with a seal ring that has a flat portion clamped to the housing with an axially movable pressure ring and an inwardly extending, resilient seal ring portion that engages a conical periphery of the disc. A plurality of threaded, circumferentially spaced-apart locking bolts in a segmented retainer ring attached to the valve housing are tightened against the pressure ring to secure the seal ring to the housing. The locking bolts are disposed in through holes in the support ring. Each through hole includes a threaded portion, which is contiguous with the side of the support ring facing the pressure ring, and an unthreaded section which terminates at the outer side of the pressure ring.

Abstract: An end body 34 is formed with a chamber 45 having a bevelled surface 62 and a cylindrical wall 60 in a portion thereof. A sleeve 46 is formed with an outward flange 48 at one end thereof and an annular bead 50 near another end 54 thereof. The sleeve 46 is formed with a press fit section 56 between the end 54 and the bead 50 thereof. The sleeve 46 is inserted axially into the chamber 45 of the end body 34 and the section 56 thereof is press fit into the cylindrical wall 60 of the end body with the bead 50 locating on the bevelled surface 62 of the end body. A valve 44 is threadedly attached to an end 58 of the end body 34 whereby a seal 64 of the valve engages the flange 48 of the sleeve 46. Water enters the end body 34 at the bottom thereof and flows into an axial passage 49 of the sleeve 46. If valve 44 is closed, the water will not flow any further. If the valve 44 is open, water will flow through the sleeve 46, the valve, the chamber 45 and out of the end body 34 to other facilities.

Abstract: A knife gate valve comprises a body member to which two aligned conduits are attached. The body member has a U-shaped internal recess of predetermined length formed within it. A removable sealing member fits within the recess and extends along its entire length. The sealing member is comprised of rubber which has been cured about a threaded or irregularly surfaced rod that reinforces the seat, helping to keep it in the correct position and orientation in the recess. The rod protrudes from both lengthwise ends of the rubber and is operatively connected with the body of the valve. This prevents the sealing member from being dislodged by the flow of slurry through the valve or the opening action of the valve in the presence of a sticky slurry.

Abstract: A method of securing a valve seat member for a ball valve within a tubular housing. Firstly, provide an annular valve seat member and a tubular valve housing. The annular valve seat member has a first face, a second face, an interior surface and an exterior surface. One of the first face and the second face of the annular valve seat member has an arcuate valve seat. The tubular valve housing has an interior surface defining an interior bore. Secondly, position an annular groove in the interior surface of the annular valve seat member and an annular groove in the interior surface of the tubular valve housing. Thirdly, lock the annular valve seat member to the interior surface of the tubular valve housing with a split ring having an exterior surface with a first annular tongue that engage the annular groove of the annular valve seat member and a second annular tongue that engages the annular groove in the interior surface of the tubular valve housing.

Abstract: A nozzle assembly (11) of an adhesive dispensing valve (10) includes a first valve (32) adjacent a discharge orifice (34). The first valve (32) opens to permit the flow of adhesive therethrough and closes to terminate the flow of adhesive in response to respective first and second states of the valve operating module (14). The adhesive dispensing valve (10) has a separable nozzle plate (102) that includes the first valve seat (100) and the discharge orifice (34) and is coupled to a nozzle body (72) with a mounting cap (104). A secondary valve (146) is located upstream of the first valve (32) and permits adhesive to flow therethrough in response to both of the first and second states of the valve operating module. However, as the mounting cap (104) and nozzle plate (102) are removed, the secondary valve (146) automatically engages its valve seat (94), thereby terminating the flow of adhesive while the nozzle plate (102) is removed from the valve body (16).

Abstract: Straight line flow rotary valves with the valve member flow passage (21) turned away from the pipeline flow axis (22), to dispose the valve internals to an access port (50) located downstream on the same flow axis of the valve member (11 ). Another embodiment is used in place of pipe elbows where the rotary valve internals are accessed through a port (50) on the same flow axis (22) as the upstream pipe. In both valve body embodiments, the flow is turned again, downstream of the valve member (11), to communicate with the connecting downstream piping which, in the first embodiment is along the same axis as the upstream pipe (22), and in the second embodiment, is on a different axis (39), and, is generally 45 or 90 degrees turned from the upstream pipe.In both embodiments the flow turns in a component (12) installed, through the body access port (50). In all embodiments the turning component also services as the pressure boundary access cover over the body opening (50).

Abstract: A valve for selectively permitting the flow of fluid therethrough is disclosed including a housing having at least one inlet and at least one outlet, a valve seat provided in the housing about the inlet, a displaceable ball for cooperating with the valve seat for sealing fluidic communication between the inlet and outlet and a ball guide for guiding the ball between a closed position in contact with the valve seat and an open position spaced from the valve seat. The ball guide includes a central bore for reciprocally receiving the ball and a plurality of circumferentially spaced fluid passages in fluid communication with the inlet, the passages extending substantially parallel to a longitudinal extent of the central bore such that a flow of fluid through the inlet is directed radially outwardly from the central bore and into the circumferentially spaced passages when the ball is in the open position.

Abstract: A valve comprising a valve body having a through opening that forms a fluid passage and having a wall surrounding a portion of the fluid passage, the wall defining a radially inwardly facing surface, the valve further including a valve element rotatably mounted in the valve body. To retain a valve seat in the valve body, there is provided a ring that has a peripheral surface shaped and sized such that the peripheral surface closely faces the radially inwardly facing surface of the wall when the ring is positioned within the through opening. The ring has a first axially facing side and a second axially facing side and a notch formed in the first side, the ring also having a second, radially outwardly facing annular groove in the peripheral surface that intersects the notch. When the ring is positioned within the through opening of the valve body, the first and second annular grooves are in register and thereby define an annular channel.