Abstract: A valve assembly includes an inlet to receive a fluid into the valve assembly, an outlet to discharge the fluid from the valve assembly and a service stop coupled to the inlet or the outlet. The service stop can rotate relative to the inlet or the outlet to control a flow of the fluid through the inlet or the outlet. The service stop can include a first tool interface to receive a first hand tool and transfer a first torque from the first hand tool to the service stop to facilitate rotating the service stop using the first hand tool. The service stop can include a second tool interface to receive a second hand tool different from the first hand tool and configured to transfer a second torque from the second hand tool to the service stop to facilitate rotating the service stop using the second hand tool.

Abstract: A control slide for use in a slide valve is disclosed. The control slide has a central axis and at least one first portion which is circular-cylindrical with respect to the central axis, all the first portions having the same diameter. The control slide further has at least one assigned second portion which is adjacent to each first portion, which second portion ends toward the first portion with an end face which extends inclined by at least 45° in relation to the central axis so that the first portion, together with the end face, forms a circular ring edge which extends around the central axis in a circular ring shape having a substantially constant cross-sectional shape. The control slide is made of steel. The at least one first portion is surface-hardened such that the hardness on the surface of the control slide decreases from the first portion via the circular ring edge toward the end face.

Abstract: A powered device includes a powerhead unit and an attachment unit selectively attachable to and powered by the powerhead unit. The powerhead unit includes a motor, a first shaft segment having a first driveshaft segment coupled to the motor, and a first connecting portion attached to the first shaft segment. The attachment unit includes an operational unit configured to be driven by the motor, a second shaft segment having a second driveshaft segment coupled to the operational unit, and a second connecting portion attached to the second shaft segment for coupling to the first connecting portion. One of the first connecting portion and the second connecting portion defines an axial opening having a keyway and includes a button having a hook portion. The other of the first connecting portion and the second connecting portion defines a slot and includes a key.

Abstract: A driving tool includes a chamber to store compressed air and a relief valve in communication with the chamber. The relief valve includes an inflow channel communicating with the chamber and an outflow channel with a larger diameter formed at a downstream side of the inflow channel. A valve stem moves along the inflow channel. An O-ring to seal the inflow channel is attached in an annular groove of the valve stem. Air release channels are defined in the valve stem. Each air release channel includes an inlet that opens to an inner circumferential chamber and an outlet that opens to the outflow channel to allow the compressed air to be discharged from the inner circumferential chamber to the outflow channel when the O-ring moves toward the outflow channel and moves beyond the inflow channel due to the internal pressure of the chamber.

Abstract: In an implementation, a hydraulic valve includes a valve body, a cylindrical chamber within the valve body, and a cylindrical spool within the chamber. The spool is rotatable between at least a first position and a second position about a longitudinal axis parallel to a longitudinal axis of the chamber. The spool includes a landing and an eccentric channel that extends around a portion of an outer circumferential surface of the landing. In the first position, an inlet and an outlet of the hydraulic valve are fluidly coupled by the eccentric channel to allow a flow of a hydraulic fluid circumferentially around the landing from the inlet to the outlet. In the second position, the inlet and/or the outlet are obstructed by another portion of the outer circumferential surface of the landing to prevent the flow of the hydraulic fluid from the inlet to the outlet.

Abstract: An oil passage portion forms a part of an oil supply passage inside. A check valve part includes a valve seat portion press-fitted into the oil passage portion. The check valve part allows flow of hydraulic oil from a hydraulic oil supply source to a hydraulic chamber, and restricts flow of the hydraulic oil from the hydraulic chamber to the hydraulic oil supply source. A filter is provided downstream of the valve seat portion in the oil supply passage so as to collect a foreign matter in the oil supply passage.

Abstract: A valve with a valve upper plate defining an inlet, a valve body defining an outlet, and a fluid passage. A closure member is disposed in the fluid passage between the inlet and the outlet and has a convex sealing surface and is rotatable between a closed position in which the closure member extends across the fluid passage with the convex sealing surface oriented towards the inlet and an open position in which fluid is able to flow through the fluid passage from the inlet to the outlet. A resilient sealing ring, when the closure member is in the closed position, is moveable between a first configuration in which the sealing ring forms a seal around a circumference of the convex sealing surface and a second configuration in which the valve comprises a circumferential gap between the convex sealing surface and the sealing ring.

Abstract: The invention relates to a fluid control device (7, 30) that comprises a fluid transfer chamber (17) and a first fluid conduit (13), a second fluid conduit (11) and a third fluid conduit (14) which are fluidly connected to the fluid transfer chamber (17). A control spool (15) is arranged movably inside the fluid transfer chamber (17) in a way that the first fluid conduit (13) and the third fluid conduit (14) can be selectively fluidly connected to the second fluid conduit (11) through said fluid transfer chamber (17). The control surfaces (19, 20) of the control spool (15) are arranged in the vicinity of the first fluid conduit (13) the third fluid conduit (14).

Abstract: A multiport valve has a plurality of inlets and outlets with selected positions to selectively direct fluid differently through the valve based on the position of the valve. A cylindrical exterior stemshell rotates internal to a housing to position channels and/or bores to provide the desired flow paths. Some flow paths are channels which extend linearly from one port to another, whether formed into an exterior surface, parallel to an axis of rotation of the stemshell, or pass from an inlet to an outlet in the exterior surface of the stemshell, preferably separated from flow from flow to an internal passage, which is preferably colinear with the axis of rotation, for at least some embodiments.

Abstract: A water leak detection assembly for a toilet includes a housing and a flow sensor. The housing is mountable externally or internally to a tank of a toilet. The flow sensor is positionable in-line with a fill line that is engaged to the tank and detects a flow of water from the fill line into the tank. A microprocessor is engaged to and positioned in the housing and is operationally engaged to the flow sensor. The flow sensor is positioned to signal the microprocessor of the flow of water. Programming code positioned on the microprocessor enables the microprocessor to distinguish between signals from the flow sensor corresponding to a normal flow of water required for flushing the toilet and a leak of water from the tank into a bowl of the toilet. The microprocessor is positioned to selectively actuate an alert module to notify a user of the leak.

Abstract: Transmissions, filter assemblies for transmissions, and valve assemblies for transmissions are disclosed herein. A transmission includes an input shaft, an output shaft, and a hydraulic system. The input shaft is configured to receive rotational power supplied by a drive unit. The output shaft is coupled to the input shaft and configured to provide rotational power supplied to the input shaft to a load. The hydraulic system is configured to supply fluid to one or more fluid demand devices coupled between the input shaft and the output shaft in one or more operating modes of the transmission. The hydraulic system includes a filter assembly having a filter element and a valve assembly fluidly coupled to the filter element.

Abstract: A piston-cylinder unit having a cylinder housing (1) with a cylinder interior (2) and a piston (3) arranged in cylinder interior (2), from which a piston rod (4) starts and is guided out from the cylinder housing (1) through an opening and at the same time is sealed with respect to the cylinder housing (1) by a piston rod seal (12) arranged on the cylinder housing (1). A sliding sleeve (11) made of plastic and entrained by the piston rod (4) is arranged on the piston rod (4), and the piston rod seal (12) bears against said sliding sleeve.

Abstract: A valve assembly includes an actuator adapted to drive movement of a valve member between an open position and a closed position. The valve assembly also includes a bonnet coupled to the actuator and a valve body coupled to the bonnet, the bonnet arranged between at least a portion of the actuator and the valve body. The valve assembly further includes a quick connector adapted to couple the bonnet to the valve body. The quick connector includes a plurality of bonnet lugs separated by a plurality of spaces, the plurality of bonnet lugs extending radially outward from an axis. The quick connector also includes a plurality of valve body lugs configured to interact with the plurality of bonnet lugs, the plurality of bonnet lugs being arranged to axially align with the plurality of valve body lugs to block axial movement of the bonnet with respect to the valve body.

Abstract: A spool valve includes: a cylindrical tubular sleeve that extends in an axial direction and comprises a first port and a second port separated from each other in the axial direction, and a cylindrical columnar spool that extends in the axial direction and comprises a diameter reduced portion. The cylindrical columnar spool moves in the axial direction through the sleeve and opens and closes the first port to cause the first port to or not to communicate with the second port, and the first port has a first through hole having a first width in a circumferential direction of the sleeve, and a second through hole having a second width different from the first width in the circumferential direction.

Abstract: Adjustable venturi assemblies and methods of using adjustable venturi assemblies are disclosed. In one aspect, a venturi assembly for injecting a secondary fluid into a primary fluid flow path is provided. The venturi assembly comprises a nozzle, a constricted section in fluid communication with the nozzle, a secondary fluid conduit in fluid communication with the nozzle, and a flow adjusting device. The nozzle and constricted section together define the primary fluid flow path along a first axis. The secondary fluid conduit is for transporting secondary fluid from the secondary fluid reservoir to the constricted section along a second axis. The flow adjusting device is positioned opposite the secondary fluid conduit and is configured to alter a velocity of fluid flowing along the primary fluid flow path by extending into a portion of the constricted section along the second axis.

Abstract: A hydraulic spool valve includes a valve housing which has a valve bore having two control chambers, which directly follow one after the other axially at a distance and extend beyond the diameter of the valve bore. A connection surface of the valve housing has a pump connection opening connected by a first fluid channel to a first of the two control chambers. A consumer connection opening is connected by means of a second fluid channel to a second of the two control chambers. The valve has a control piston, which is guided back and forth in the valve bore to fluidically connect or separate the two control chambers. A radial web of the valve housing projects into each control chamber, with an extension delimited in the circumferential direction. The web in the second control chamber is longer in the circumferential direction than the web in the first control chamber.

Abstract: A flushing mechanism includes a housing with an outfall made at the housing bottom surrounding an axis; a guide rod with axial restraint relative to the housing along the axis; a first piston that hermetically slips on the cylindrical inner surface and guide rod at the same time along the axis direction; a spring loading the first piston installed in the upper cavity surrounding the guide rod; the second piston that hermetically slips on the guide rod along the axis direction and locates between the first piston and the housing bottom; a spring loading the second piston installed surrounding the guide rod; control valve; lower part of the first piston is provided with ring protuberance. The large seal ring of seal assembly of the second piston is sealed over the small seal ring of seal assembly of the second piston.

Abstract: A spool valve includes a body defining a bore and a positionable spool located within the bore. The spool includes a central body portion having a diameter and a number of sealing lands separated by the central body portion. Each sealing land has a diameter larger than the central body portion diameter. A plurality of flow-shaping rings are located between first and second sealing lands, and each comprise an intermediate diameter larger than the central body portion diameter and smaller than the sealing land diameter.

Abstract: The present invention relates to a hand-held refillable gas container, which includes a metal can body for storing liquid gas, and the top and the bottom of the can body are respectively installed with a gas discharge part and a filling nozzle; wherein the gas discharge part includes a connection ring and a discharge nozzle disposed in the connection ring; and the filling nozzle is able to be connected to a discharge nozzle of a conventional canned gas, thereby allowing liquid gas to be filled and stored in the can body. Accordingly, the gas container provided by the present invention has advantages of allowing a user to easily hold and carry around for satisfying different combustion requirements and various operation environments.

Abstract: A reversing valve (100) for a high-viscosity medium comprises a housing (10) having an inlet opening (23) and at least two outlet openings (21, 22), extending into a valve bore in which is mounted an axially displaceable valve stem (10, 10?). The valve stem comprises a groove by which the inlet opening (23) is alternatively to be connected to one of the outlet openings (21, 22). The groove has an axially extending inflow zone (12) and an axially extending outflow zone (11, 11?). The inflow and outflow zones are connected at both ends to a continuous annular channel by way of connecting channels (13, 14).

Abstract: A main piston bushing for a service valve portion of a brake control valve includes a cylindrical sidewall defining a central passageway extending longitudinally through the main piston bushing, the central passageway being surrounded by an internal surface of the cylindrical sidewall. The central passageway is configured to receive the main piston assembly of the service valve portion. The internal surface of the cylindrical sidewall includes a first ramp and a second ramp defined therein, the first ramp and the second ramp being configured to engage a portion of the main piston assembly of the service valve portion to restrain movement of the main piston assembly.

Abstract: A valve assembly having a valve-seal on a valve member that moves between an open and a closed position within a valve support housing for controlling fluid flow, particularly for use as a shut-off valve. In many embodiments, advancing the valve member sealingly engages the valve-seal with a valve seating area of the housing to close the valve and shut-off fluid flow through the housing, while retracting the valve member moves the valve-seal away from the seating area to allow fluid flow around the valve-seal and through the valve-seating area. In many embodiments, the valve member includes a proximal handle and angled ramp that engage with a helical ramp of the housing to translate rotation of the handle into axial movement of the member between open and closed positions.

Abstract: A valve has a valve housing with a first port and a second port, and has a closing member movable along an axial direction. When in a closed position, the closing member interacts sealingly with a valve seat to block a fluid connection between the first and second ports. An fluid-impermeable diaphragm comprises a central opening through which a closing member arrangement including the closing member extends, and a clamping section that runs in a clamping gap. The diaphragm is held with sealing action between the closing member arrangement and a holding arrangement on the housing. The diaphragm has a first section and a second section adjoining the first section. The first section is held in the holding arrangement with a force fit, the second section is guided in the holding arrangement, and the first and second sections are arranged at an angle relative to one another. A form fit is generated by the first section, second section and holding arrangement.

Abstract: Disclosed valves for drinking from a portable fluid container allow for manual actuation of the valve between an open configuration that permits fluid flow and a closed configuration that substantially prevents fluid flow. Disclosed valves comprise a valve housing having inner bore fluidly coupled to an inflow channel and an outflow channel that are angled with respect to one another, and a reciprocating valve member that is adjustably positioned partially within the bore to open and close the fluid flow pathway through the bore from the inflow channel to the outflow channel. The reciprocating valve member is shaped such that it can prevent fluid flow when fully inserted within the bore to a closed configuration, and can allow fluid flow when the valve member is retracted from this closed position by a relatively short distance to an open configuration.

Abstract: A stopper system including a female member having a conduction path extending in an axial direction thereof, which is to be fixed to a fluid inlet/outlet port of a container, a plug detachably engaged with the tip of the female member, a first male member for supplying a fluid into the container, and a second male member for plugging the conduction path of the female member. Fluid is supplied to the container by inserting the first male member into the conduction path of the female member. The female member is plugged by inserting the second male member into the conduction path of the female member. The fluid in the container is discharged to the outside by inserting a fluid discharge pin into the second male member.

Abstract: Embodiments of an apparatus that provide functions to set and to verify the set point of a valve assembly in a single device. These embodiments forgo the need to use of two separate devices, one each to accomplish the tasks to set the set point and to verify the set point. Rather, the apparatus incorporates components that can assume different configurations including a first configuration that facilitates the task for setting the set point and a second configuration that facilitates the task of verifying the set point.

Abstract: Valve bodies having integral boost reducing capability are described herein. An example fluid regulator includes a body having a main passageway defining an orifice to fluidly couple an inlet and an outlet where the main passageway defines an inlet volume boundary between the inlet and the orifice and an outlet volume boundary between the orifice and the outlet. A portion of the outlet volume boundary includes an inner wall adjacent the orifice. A valve plug is disposed within the second portion of the passageway such that the inner wall substantially surrounds an outer surface of the valve plug to substantially restrict fluid flow between the inner wall and the outer surface of the valve plug and toward the throat. The valve body having a secondary fluid passage within the outlet volume boundary to increase fluid flow toward the throat of the valve body when a fluid flows across the orifice.

Abstract: A valve assembly including a housing having first and second ports; a cylinder assembly mounted on such housing having a piston rod displaceable along an axis of such first port, provided with a valve plug including a first component having a passageway therethrough intercommunicable with the interior of such housing and such first port, and a second component supported on and displaceable axially relative to such first component, wherein upon extension of such plug into closing engagement with such first port, such passageway will be obstructed and upon retraction of such plug out of closing engagement with such first port, such passageway will be unobstructed.

Abstract: The invention generally provides a dynamic back pressure regulator. In an exemplary embodiment, the back pressure regulator includes an inlet, an outlet, a seat disposed between the inlet and the outlet and defining at least part of a fluid pathway, and a needle displaceable relative to the seat to form a restriction region therebetween for restricting fluid flow between the inlet and the outlet. In some embodiments, the needle can include a corrosion and/or erosion resistant polymer tip.

Abstract: In accordance with various embodiments, a plug head assembly is provided comprising a ceramic plug head having a frustroconical geometry, wherein the ceramic plug head has a proximal terminus and a distal terminus, wherein the ceramic plug head has a first coefficient of thermal expansion (CTE), a sleeve having a frustroconical geometry conforming to the ceramic plug head and a second CTE, wherein the second CTE is greater than the first CTE, a distal retainer having a frustroconical geometry conforming to the sleeve, the distal retainer having a first engagement portion for engaging the a proximal retainer, the proximal retainer having a second engagement portion for engaging the distal retainer, and a base that couples with the proximal retainer. In addition, thick banded plug heads are provided.

Abstract: A media control valve has a valve body having a media inlet and a media outlet and a plunger which is positioned within the valve body. The plunger is connected to a metering control assembly in the bore of the valve body and can be removed without disturbing the control assembly. A sleeve is positioned in the valve body between the valve body and the plunger. The sleeve includes an integral seal for sealing the valve to a flow device such as a base. The valve stem or post for housing the control knob may have metering marks for visually indicating the position of the plunger relative to the sleeve. The control knob on the valve is aligned with the metering marks on the valve body, whereby the valve opening may be calibrated by visual indication of the alignment of the metering marks with the lower edge of the control knob.

Abstract: Axial fluid valves having curved or angled valve bodies are described herein. An example apparatus disclosed herein includes a valve body defining a passageway between an inlet and an outlet, the inlet is aligned along a first axis and the outlet is aligned along a second axis. The example apparatus includes a flow control member interposed between the inlet and the outlet. The example apparatus also includes an actuator having a stem coupled to the flow control member to move the flow control member along a third axis in the passageway. In the example apparatus, the third axis is substantially parallel to and offset from at least one of the first axis or the second axis.

Abstract: According to the present invention, an endoscope valve is provided that comprises a cylinder, a cylinder liner, a piston, and a sleeve. The cylinder has a groove on a lateral surface of the cylinder. The cylinder liner has a cylindrical shape and is inserted into an inner circumference of the cylinder. The piston is inserted into an inner circumference of the cylinder liner. The sleeve has a sleeve rib, a sleeve skirt, and a pin. The sleeve rib covers at least part of an open end of the cylinder. The sleeve skirt covers at least part of a circumferential surface of the open end. The pin projects from the sleeve skirt towards the circumferential surface to engage with the groove. The cylinder liner has a rib that projects radially outward from a circumference of the cylinder liner. The sleeve rib holds the rib on the open end in the case that the pin engages with the groove.

Abstract: A valve (10) for selectively diverting flow from a source to another path for use in vehicles. The valve includes a valve plunger (20) axially movable in a housing (12) between a closed position in which an annulus (28) of the valve plunger blocks the inner diameter of an inlet pipe (14) and serves as a hydrodynamic surface to move the fluid entering the inlet pipe smoothly over the valve elements, including a control chamber (40) that contacts with a fixed base of the valve member. The control chamber is connected by an inlet orifice (32) to the inlet pressure and to an external control orifice (52) connection having a low-pressure side such that the control pressure in the control chamber is variable between 100% and 0% of the inlet pressure.

Abstract: Embodiments of a force generating element that can broaden the application of valves and, in particular, pilot-operated valves to include applications that have extreme operating temperatures. These improvements forgo use of o-rings (and like elastomeric devices) in lieu of more durable and robust seals (e.g., metal-to-metal contact). Rather, as discussed more below, the valves incorporate a force generating element that ensures contact between components to form appropriate seals that allow the cylinder to maintain pressure, despite dimensional changes in the structure of the valve.

Abstract: A valve assembly includes a valve body having a body recess and a bonnet including a bonnet recess having a bonnet mating surface. The valve assembly further includes a valve cage disposed within an interior of the valve body, the valve cage including a body portion extending along a longitudinal axis and a circumferential mating protrusion extending from an outer surface in a transverse direction, the mating protrusion including an upper mating surface and a lower mating surface. The upper mating surface is disposed within the bonnet recess to be aligned with the bonnet mating surface, and the lower mating surface is disposed within the body recess to be aligned with the body mating surface, wherein the upper and lower mating surface are not parallel. Accordingly, clamping forces acting on the mating protrusion include a longitudinal and tangential component, allowing for increased clamping forces without plastically deforming the mating protrusion.

Abstract: A flow rate control valve, which is capable of controlling the flow rate of a fluid that flows between a pair of ports by displacing a rod, includes a valve mechanism in an axial direction. The valve mechanism includes a body having the ports and a pair of fluid passages through which fluid supplied from the ports flows. The valve mechanism includes a sub-body disposed in an interior of the body, and in which the rod is screw-engaged in an advancing and retracting manner. The valve mechanism also includes a tubular shaped seat connected to an end of the sub-body, including a seat structure to seat the rod thereon, and a hole that communicates between one of the fluid passages and another of the fluid passages.

Abstract: A valve assembly is provided including a generally hollow cylinder coupled to an axially aligned piston chamber. The cylinder defines an internal void extending from one side of the cylinder to another side of the cylinder. The cylinder includes at least one fluid inlet path and at least one fluid outlet path. A shuttle is arranged within the internal void of the cylinder. The shuttle is slidable between a first position and a second position around an axially located piston rod of the piston chamber. A generally sealed chamber exists between a portion of the shuttle and the cylinder. When the shuttle is in the second position, the chamber fluidly couples the fluid inlet path and the fluid outlet path to provide a controllable fluid flow into and out of the cylinder.

Abstract: An apparatus, system and method for regulating fluid flow are disclosed. The apparatus includes a flow rate sensor and a valve. The flow rate sensor uses images to estimate flow through a drip chamber and then controls the valve based on the estimated flow rate. The valve comprises a rigid housing disposed around the tube in which fluid flow is being controlled. Increasing the pressure in the housing controls the size of the lumen within the tube by deforming the tube, therefore controlling flow through the tube.

Abstract: A valve for regulating fluid flowing bidirectionally therethrough includes a first flow body defining a passage configured to direct fluid flow in a downstream direction defined from the inlet to the outlet. The inlet includes an enlargement configured to provide decreased resistance to fluid flow in the downstream direction relative to flow in an upstream direction opposite the downstream direction.

Abstract: A piston has a closure face closing off a cavity defined radially inwardly and downstream of an upstream end. The closure face is spaced from the upstream end by a first distance. The piston has a cavity extending in a downstream direction away from an opposed side of the closure face to a second end. A piston diameter is defined to an outer periphery of a cylindrical portion forming a seal face. A ratio of the piston diameter to the first distance is between 3.05 and 6.31. A valve sleeve has windows formed to allow flow of fluid from a sleeve internal bore through the windows and to a downstream port. A ratio of the inner diameter to the axial dimension of the windows is between 0.91 and 1.02. A ratio of the inner diameter to a circumferential dimension of the windows is between 1.55 and 1.85.

Abstract: A heat pipe comprises an evaporator section 5 having a radiation absorbing plate 6 a portion of an elongate tube 7, and a condenser section 10 at a distal end of the elongate tube 7 remote from the evaporator section 5. A flow control valve 20 is provided between the evaporator section 5 and the condenser section 10 to selectively interrupt communication between said sections when the temperature within the condenser section 10 exceeds a predetermined maximum. A temperature sensitive member, (coil of memory metal 34?, or discs 34?) acts between a support plate 26 and a seat 36 located on a valve pintle 30 to urge the valve head 22 towards the valve seat 24 when the temperature of the temperature sensitive member 34 exceeds a predetermined limit. A return spring 38 is provided to bias the valve head 22 away from the valve seat 24.

Abstract: According to one embodiment, a valve apparatus includes a movable member operating in conjunction with opening and closing of a valve, and a stationary member in sliding or abutting contact with the movable member. The valve apparatus includes a cladding portion that is integrally formed on a sliding-contact surface or an abutting contact surface of at least one of the movable member or the stationary member. The cladding portion is formed by inducing a pulsed discharge between an electrode, which is formed of a molded body consisting mainly of a metal, and a treatment target portion of the movable member or the stationary member, so as to weld and deposit a material of the electrode on a surface of the treatment target portion.

Abstract: A sliding stem control valve includes a valve body, a seat ring located within the valve body and a valve plug slidably mounted within the valve body, the valve plug and the valve seat cooperating to control fluid flow through the control valve. A seal assembly is located between the valve plug and the valve seat, the seal assembly including a metal/graphite seal ring located between a first backup ring and a second backup ring. A biasing element is located adjacent the second backup ring and a retainer ring is located adjacent the biasing element to maintain the biasing element adjacent the second backup ring.

Abstract: A combination includes a container and a coupling configured to receive the container. The coupling has a unitary body having a first side and an opposing second side, the first side comprising a first orifice and a second orifice, the second side comprising a third orifice. The first orifice is disposed in flow-through communication with the third orifice from the first side to the second side, and the third orifice is disposed in flow-through communication with the second orifice from the second side to the first side. A first flow path through the first orifice is disposed parallel with a second flow path through the third orifice, and a third flow path through the third orifice is disposed parallel with a fourth flow path through the second orifice.

Abstract: A double action directional fluid flow valve includes a stepped piston connected with a poppet valve and moveable by a controller between open and closed positions by applying a continuous pressure to a small diameter piston face and selectively applying and removing pressure from a large diameter piston face to move the poppet valve between an open position and a closed position.

Abstract: A valve having a metal insert with a fluid passage formed in the metal insert. A composite valve body is disposed at least partially around the metal insert and having at least one port in fluid communication with the fluid passage with the metal insert. A valve member is partially disposed in the metal insert and operable to control the fluid flow through the fluid passage of the metal insert and parts of the valve body.

Abstract: A high capacity fluid control valve includes a valve body having a fluid inlet and a fluid outlet connected by a flow corridor, a valve seat disposed within the flow corridor the valve seat being located above a longitudinal axis of a flow pipes connected to the fluid inlet and the fluid outlet, and a valve plug disposed within the flow corridor, the valve plug cooperating with the valve seat to control fluid flow through the valve body. The valve seat is offset from the longitudinal axis of the flow pipes in a direction towards the valve plug.

Abstract: Valves (110) and other apparatus, methods of moulding and moulds (112) are provided for the moulding of materials such as injection or injection-compression moulding of molten thermoplastic materials. The valve includes a valve element/piston (126) that is orientated at 60 degrees relative to the mould's bounding wall (116) and that can reciprocate in a barrel (122) and that can rotate. The piston (126) h a leading face (128) that is also orientated at 60 degrees, so that the flow passage/melt channel (118) extends past the leading face (128) when the valve (110) is open and the leading face (128) forms part of the bounding wall of the mould cavity (114) when the valve is closed. The piston (126) is advanced or retracted a very short distance and is rotated through 180 degrees, to open and close the valve (110).

Abstract: A safety discharge valve includes a siphon-type open/close device (1), a valve cover assembly (2), a valve rod (3), a valve body (4), an extensible side-sealing top-pressing assembly (5), side rotary sealing plates (6), a tapered bottom valve plug (7) and a side water inlet emergency plug (10).