Abstract: An inline variable sonic valve is provided that includes a housing defining an inlet and an outlet positioned inline along a gas flow axis. A contoured metering plug is fixed within the housing and a diverging sleeve is movably positioned within the housing downstream of the contoured metering plug. An actuator is positioned offline from the gas flow axis and is configured to move the diverging sleeve within the housing relative to the contoured metering plug fixed therein to vary a gas metering area defined between the contoured metering plug and the diverging sleeve. The actuator may be hydraulic, fueldraulic, pneumatic, or electric, and may drive the diverging sleeve discretely to an open or a closed position, or to a variable position between the open and closed position when a position senor is included to meter the flow therethrough.

Abstract: A device for controlling the flow of a fluid through a conduit from an upstream side of the device to a downstream side of the device is provided. The device includes an upstream valve casing defining an inlet, a downstream valve casing defining an outlet aperture, and a valve core secured between the upstream valve casing and the downstream valve casing. The upstream valve casing, the downstream valve casing and the valve core are formed as discrete parts. The valve core includes a housing defining a control volume. The valve member is mounted on the housing and positioned on the upstream side of the outlet aperture, the valve member being arranged to move reciprocally to selectively open and close the outlet aperture, thereby controlling flow of the fluid through the outlet aperture.

Abstract: A method and device are for adjusting air volume of an air conditioner are provided, that use a computer readable storage medium. The air conditioner includes an indoor unit with a vase-shaped housing, wherein the vase-shaped housing includes a bottle mouth and where an air outlet of the indoor unit is provided at the bottle mouth of the vase-shaped housing. A liftable cover plate is provided at the air outlet of the indoor unit. The method includes obtaining specified air volume, obtaining curved surface features of an inner wall at the bottle mouth of the vase-shaped housing and cover plate specifications of the cover plate, and adjusting an actual height of the cover plate according to the specified air volume, the curved surface features, and the cover plate specifications.

Abstract: A downhole flow control device and associated method, wherein the downhole flow device is configured for use with a tubing string, the downhole flow device including a flow path configured to permit flow between external and internal locations of a tubing string; a barrier member configured to selectively vary the flow path; and a receiver configured to receive a control signal to permit control of the barrier member. Beneficially, the downhole flow device may be at least partially operable by fluid or fluid pressure from the tubing string or wellbore. Corresponding fracking valve assemblies, completion assemblies, inflow control device and hydraulic distribution modules may be provided.

Abstract: A steam valve has a tubular stop valve configured to move toward an upper end side and a lower end side along an axial direction when the stop valve is opened and closed respectively; and a valve main body configured to accommodate the stop valve. The stop valve has a ring-shaped protrusion portion protruded outwardly in a radial direction. The valve main body has an accommodation space for accommodating the protrusion portion which is divided by the protrusion portion into a first pressure space and a second pressure space. First and second feed/discharge portions configured for adjusting a pressure in the first pressure space and the second pressure space respectively are further provided. The protrusion portion is moved upwardly and downwardly by adjusting the pressure in the first pressure space and the second pressure space.

Abstract: A bleed valve includes a housing with an inlet coupled to an outlet by a duct, a guide tube with an orifice fixed in the housing between the inlet and the outlet, a piston, and baffle. The piston is slideably supported on the guide tube and is movable between an open and a closed position, the duct fluidly coupling the inlet and outlet in the open position, the duct fluidly separating the inlet and outlet in the closed position. The orifice fluidly couples the inlet and outlet in the open and closed positions to move piston between the open and closed positions according to differential pressure between the bleed valve inlet and outlet. The baffle is slideably supported by the guide tube to set the differential pressure at which the piston moves between the open and closed positions. Gas turbines and differential pressure adjustment methods are also described.

Abstract: The invention relates to a safety valve comprising a pilot valve element, a pilot valve actuator, a main valve element cooperating with a main valve seat, a permanent magnet being provided which is associated with the main valve element and which is adapted to hold the latter in an open position, and a main valve actuator being provided which cooperates with the main valve element.

Abstract: Example aspects of a dual seating system, a fixed cone valve, and a method for using a dual seating system are disclosed. The dual seating system can comprise a gate comprising a gate metal seat; and a cone seat assembly comprising a cone metal seat and a cone rubber seat; wherein the gate metal seat is configured to seat with the cone metal seat to define a metal-to-metal seating and the gate metal seat is configured to seat with the cone rubber seat to define a metal-to-rubber seating.

Abstract: A bleed air valve comprises a housing that includes an inlet, an outlet, and a center portion to selectively provide a pneumatic flow path between the inlet and the outlet. A piston moves along a center guide in response to forces applied to the piston, where the piston is spring biased to an open position. The valve also comprises a pressure regulator valve that comprises a spring loaded poppet valve that includes a pressure regulator inlet that receives an inlet pressure which is regulated based upon force applied to a pressure regulator piston. A valve spring applies a force to the piston first surface to spring bias the bleed air valve to the open position. A solenoid valve receives a command signal and in response provides compressed air to a solenoid valve outlet that is in fluid communication with the pressure regulator inlet.

Abstract: A pneumatic controller includes a manifold, a selector, and a biasing member. The manifold has a low pressure port, a high pressure port, an actuator port, and a vent. The selector is movable within the manifold between a first position and a second position, the low pressure port in fluid communication with the actuator port in the first position, the high pressure port in fluid communication with the actuator port in the second position. The biasing member is supported within the manifold and urges the selector towards the first position, wherein the low pressure port is in fluid communication with the vent in both the first position and the second position to cool the biasing member with low pressure fluid received at the low pressure port. Inline valves, gas turbine engines, and methods of controlling fluid flow through inline valves are also described.

Abstract: A controller for an inline valve includes a manifold seating a set screw and has a reference fluid port, a control fluid port, and an actuator fluid port. A selector is movable within the manifold between a first position and a second position, the reference fluid port in fluid communication with the actuator fluid port in the first position, the control fluid port in fluid communication with the actuator fluid port in the second position. A biasing member is arranged between the selector and the set screw and urges the selector towards the first position. The set screw extends through an exterior of the manifold for adjustment of differential in pressures at the reference fluid port and the control fluid port responsive to which the selector moves between the first position and the second position. Inline valves and methods of controlling fluid flow through inline valves are also described.

Abstract: A pneumatic controller for an inline valve includes a manifold with a set screw seated within it, a selector, and a biasing member. The manifold has a low pressure port, a high pressure port, and an actuator port. The selector is movable within the manifold between a first position and a second position, the low pressure port in fluid communication with the actuator port in the first position, the high pressure port in fluid communication with the actuator port in the second position. The biasing member urges the selector towards the first position with a biasing force and is spaced apart from the selector to limit eccentric force exerted on the selector. Inline valves and methods of controlling fluid flow through inline valves are also described.

Abstract: An inline valve includes a valve body, a valve member, and a control manifold. The valve body has an exterior, an inlet, and an outlet. The valve member is supported within the valve body and is movable between a first position and a second position. The inlet in fluid communication with the outlet while the valve member is in the first position and the inlet fluidly separated from the outlet while the valve member is in the second position. The control manifold is supported by the valve body, has a reference fluid port and a control fluid port, and is in pneumatic communication with the valve member through the valve body exterior to passive movement of the valve member according to pressure at the valve body inlet. Gas turbine engines and methods of controlling valves are described.

Abstract: Valve including a valve body having a drain hole, a valve seat including an outlet union from which fluid flows out of the valve, a cup coupled to the valve body and biased against the valve seat, an input union, and a control valve arranged partly inside the valve seat. The control valve defines a compartment and includes an actuator, a permanent magnet and first and second electromagnets. The actuator includes a slide arranged in the compartment and that closes the drain hole when in a first position and is spaced apart from the drain hole when in a second position, and an armature. Providing current to the first electromagnet causes the slide to move to the second position separated from the drain hole and causes movement of the cup apart from the valve seat and thus flow of fluid from the input union to the outlet union.

Abstract: An aircraft fuel tank system including a fuel tank compartment for containing liquid fuel and having a float-activated valve arranged to become positively buoyant when immersed in liquid fuel so that the float moves up to a raised position which causes the valve to close and prevent liquid fuel from flowing out of the fuel tank compartment through the valve. The float is also arranged to move down to a lowered position in response to a level of the liquid fuel in the fuel tank compartment dropping, the movement of the float to the lowered position causing the valve to open and permit liquid fuel to flow out of the fuel tank compartment through the valve. A pressure-activated valve may be used as an alternative to the float-activated valve.

Abstract: There is provided a pressure regulating shut-off valve comprising a valve body, at least one piston serving as a regulating piston and/or a shut-off piston, a solenoid valve, and a pressure relief valve; wherein the valve body defines an inlet and an outlet, and comprises at least a portion formed by an additive manufacturing process.

Abstract: A control valve includes a piston-housing having a hollow portion. The hollow portion has a first end, an open end, first and second internal chambers, and a fluid port configured to allow fluid to exit the second chamber. The first chamber is nearer the first end, and the second chamber is nearer the open end. A piston is located within the housing and is adapted for reciprocal motion. The piston includes a first and second seal-engaging portions. The first seal-engaging portion has a diameter that is less than the diameter of the second seal-engaging portion.

Abstract: An inline high-recovery flow control valve comprising a tubular housing internally separated into a cylindrical and a contoured diameter section and where the contured portion being subdivided by a reduced diameter bore, a contoured valve plug suitably fastened to a sliding ring which conforms to the cylindrical diameter of the housing, and mechanical means to motivate the ring with attached valve plug to and from the reduced circular bore.

Abstract: A flow sensor for use downstream from a particulate media dispensing device is provided having an inlet to receive particulate media and an outlet to dispense the media. The flow sensor has an inlet portion with a funnel to direct particulate media towards a central axis. An axially mounted flow director is located downstream from the funnel to direct the media outwards towards a sensor portion. A capacitive sensor located in the sensor portion surrounds the flow director to create an annular flow path to measure the amount of media that passes through sensor rings in the sensor.

Abstract: A valve assembly includes a flow duct with an inlet and an outlet downstream from the inlet. A piston housing is inside the flow duct and is axially aligned with a center axis of the flow duct. A piston is inside the piston housing and is configured to extend downstream of the piston housing in a closed position. A control chamber is between the piston and an upstream end of the piston housing. A control opening extends through the upstream end of the piston housing and fluidically communicates with the flow duct and the control chamber. A cap extends through the control opening. A cap passage extends through the cap and has an inlet outside of the piston housing and an outlet inside the piston housing, and includes two ninety-degree turns between the inlet and the outlet of the cap passage.

Abstract: A valve is provided having an inlet to receive a flowable particulate media and an outlet to dispense the media. The valve has an inlet portion with a funnel and repelling magnets. A shuttle sleeve extends from the inlet portion to allow a shuttle to slide along a central axis between an opened and a closed position. The shuttle has shuttle magnets that are oriented to have poles that face the repelling magnets to create a biasing force that biases the shuttle towards the closed position. When the shuttle moves, the shuttle magnets create eddy currents in a tube. The closed position is defined by a sealing edge of the shuttle contacting a sealing surface on a flow director. A capacitive sensor surrounds the flow director to measure the amount of media that is dispensed by the valve.

Abstract: A valve for use in an air exchange panel (20) of a transportation refrigeration system is provided including a valve cap (102) configured and arranged to be positioned adjacent the air exchange panel (20) and movable between a first position and a second position. The valve cap (102) includes a magnetic portion. A resilient flexible member (110) is coupled to the valve cap (102) and is configured and arranged to be coupled to the air exchange panel (20). The resilient flexible member (110) biases the valve cap (102) into a first position. An electromagnet (150) is positioned inside the air exchange panel (20), opposite the valve cap (102). A controller is coupled to the electromagnet (150) to selectively apply power to move the valve cap (102) between the first position and the second position.

Abstract: A valve for a turbomachine, has a valve cone and a valve seat, the valve cone being configured such that it can be moved in a valve body with respect to the valve seat. The opening and closing of the valve being achieved by the use of process-internal media taking into account different geometries of the working chambers and the use of thermodynamically different state variables.

Abstract: A pilot valve that includes a pilot valve body including a chamber, a first fluid inlet and a second fluid inlet for providing fluid to the chamber, and a fluid outlet for receiving fluid from the chamber. The pilot valve further includes a separating element and a valve rod, the valve rod is arranged to control fluid flow from the first or second fluid inlet to the fluid outlet via the chamber. The separating element is connected to, and movable with the valve rod, and has a first fluid contacting area configured to be in fluid communication with the first fluid inlet, and a second fluid contacting area configured to be in fluid communication with the second fluid inlet and arranged on an opposite side to the first fluid contacting area. The pilot valve is at least partly controlled by a difference between a first force and a second forces acting on the first and second fluid contacting areas of the separating element.

Abstract: An in-line valve, particularly suited for use with a domestic garden hose, comprises a valve body, preferably made of two press-fitted-pin mating parts. A shuttle moves linearly within the bore of the valve body when force is applied to tabs which project through openings in the valve body. The end of the shuttle sealingly engages and disengages with a plug that is centered within the bore. The plug comprises struts and fins, configured for good flow characteristics. The combination of cross section of the shuttle relative to the bore, and the fits and properties of O-ring seals, are critical for easy manual operation of the valve.

Abstract: Air conditioning system for the pressurized cabin of an aircraft, said system (1) being characterized in that it comprises an air withdrawal module (3) configured for withdrawing ambient air from outside the aircraft, an air compression module (5) configured for compressing the withdrawn air flow (F1) and an air cooling module (10) comprising means (15) for storing at least one coolant configured for cooling the compressed air flow (F2, F3).

Abstract: A pneumatically operated gas valve includes a piston positioned in a cylinder with one closed end so that the piston may seat against a gas outlet to close the gas valve. A control reservoir may be formed in the cylinder between the piston and the closed end of the cylinder. Means for filling the control reservoir with gas to a control pressure may be provided so that the control pressure acting against the piston may close the gas valve. A release valve may be opened to allow the gas in the control reservoir to escape through an exhaust port to open the gas valve.

Abstract: A bleed valve assembly includes a flow duct with an inlet and an outlet disposed downstream from the inlet. The outlet is smaller in cross-sectional area than a region of the flow duct disposed between the inlet and the outlet. A piston housing is disposed inside the flow duct between the inlet and the outlet so as to form an annular flow passage between the flow duct and the piston housing. The piston housing is axially aligned with a center axis of the flow duct. At least one rib extends between the flow duct and the piston housing. A sleeve piston is disposed inside the piston housing and is configured to extend downstream of the piston housing in a closed position. The sleeve piston comprises an outer wall that is at least the same in cross-sectional area as the outlet of the flow duct.

Abstract: In one aspect, a pressure differential device including: an inlet; an outlet; and a fluid restricting member fluidly associated with the inlet and the outlet, wherein the fluid restricting member is configured to provide a first backpressure at a first setting and a second plurality of backpressures at a plurality of second settings. In another aspect, a method to control backpressure including: providing a fluid line with an inlet fluid flow; supplying the inlet fluid flow into a pressure differential device; expelling an outlet fluid flow out of the pressure differential device; pressurizing the inlet fluid flow to a first backpressure at a first setting of the pressure differential device; pressurizing the inlet fluid flow to a second plurality of backpressures at a plurality of second settings of the pressure differential device.

Abstract: In one featured embodiment, a piston for a valve comprises a cylindrical body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end. The cylindrical body has a piston bore configured to receive a spring assembly. The cylindrical body has a maximum outer diameter that comprises a closure sleeve contact surface, and the cylindrical body is defined by a first length that is less than the overall length. A ratio of the first length to the maximum outer diameter is between 1.0 and 1.2.

Abstract: A control valve includes a wall defining a chamber having an inlet end, a middle portion and an outlet end in axial alignment. A valve seat and a valve plug are proportioned to fit the valve seat arranged in axial alignment within the chamber. At least one of the valve seat and valve plug is configured for axial movement towards the other. Relative movement between the valve plug and valve seat is enabled by a cam mechanism including a first shaft assembly extending axially along the chamber and fixed to one of the valve plug and valve seat. A cam is operable with the first shaft assembly to separate or draw together the valve seat and valve plug along the axis of the chamber. A second shaft assembly is coupled to the cam and extends through the middle portion of the chamber wall terminating in a free end attachable to a rotary actuator.

Abstract: The flow control device is provided and the method for controlling the flow. A flow control device comprises: a body including a first end, opposite second end, a first flow channel and a second flow channel, a plug and a laminar flow layer accommodated in the second flow channel; a telescopic device accommodated the length of the telescopic device is adjustable, so as to control the flow of fluid flowing through the opening area in the body.

Abstract: A valve includes, a tubular having at least one port, a sleeve in operable communication with the tubular configured to uncover the at least one port in response to moving from a first position to a second position, and a seat that is configured to be passed a selected number of times without shifting the sleeve from the first position to the second position and is further configured to be passed one additional time after the selected number of times after shifting the sleeve from the first position to the second position.

Abstract: A valve with a housing including an inlet opening and an outlet opening for a fluid; a closure element through which a flow of the fluid is controllable; an actuation device including an electric actuator for adjusting a closure cross section of the closure element; a drive housing at which a stator of the electric actuator is fixated, wherein a moveable moving element of the electric actuator is kinematically coupled with the closure element in an inner cavity of the drive housing which is loaded with a pressure from the fluid, wherein the stator is disposed in the inner cavity, and wherein the inner cavity of the drive housing is separated from the fluid through a moveable divider element. In order to use a valve with an actuator disposed in an abrasive fluid the inner cavity of the drive housing is separated from the fluid through a moveable divider element.

Abstract: A Joule-Thompson or other throttling valve comprises an outlet channel (7) in which swirl imparting means (10) impose a swirling motion to the cooled fluid stream discharged by the valve, thereby inducing liquid droplets to swirl towards the outer periphery (7A) of the fluid outlet channel (7) and to coalesce into enlarged liquid droplets (17) which can be separated easily from a gaseous or other carrier fluid.

Abstract: A driving and adjusting device of a passive shuttle-type shut-off valve is provided. The problems of a big valve body structure size, a non-random angle installment, a single drive mode, low stability and reliability, a high temperature and poisonous material entering into the driving and adjusting device and unadjustable on-off speed and low volume in the prior device are solved. A main body (33) is connected with an upstream pipe (1) and a downstream pipe (3). A pressure port (2) on the upstream pipe (1) is connected with the driving device. A double acting cylinder (34) is provided in a valve sleeve (21). The left and right chambers of the double acting cylinder are connected with the valve clack (24). The driving device is composed of a regulating valve, a directional valve, a check valve, a boost-insulation valve and an accumulator (18). It can select the drive mode and adjust the on-off speed and the flow volume of the valve.

Abstract: A drain plug for selectively draining a source of fluid is described, and which includes first, second and third portions which provide coaxially aligned fluid passageways which extend therethrough, and wherein the second portion is moveable relative to the first and third portions between a first position which substantially occludes, and prevents the passage of fluid through the coaxial aligned fluid passageways, and a second position where fluid is allowed to pass therethrough and may be collected for disposal as required.

Abstract: The invention provides a fluid flow control valve (1) comprising a cylindrical inlet chamber (2) having a fluid inlet aperture (3) and a coaxial waisted cylindrical outlet chamber (4) having a fluid outlet aperture (5), said inlet chamber containing a coaxial cylindrical cage (6) opening into said outlet chamber and said cage having in its cylinder wall at least one valve aperture (7) to allow fluid to pass from said fluid inlet aperture into said outlet chamber, said control valve further comprising a coaxial cylindrical plug (10) movable axially relative to said cage to close and open said valve aperture and a valve actuator (9, 11, 12, 13) operable to move said plug or cage relative to each other whereby to close or open said valve aperture, wherein said valve aperture is arranged to provide fluid exiting said cage from said inlet chamber with a velocity component tangential to the cylindrical axis (31) of said cage.

Abstract: A quick-acting valve 1 having metering relief is used in particular for oxygen lances, wherein the actual sealing body 10 inside the valve tube 2 has a two-part design and accommodates the valve spring 8 with the housing parts 16 and 17 of the spring. The gas is conducted around the sealing body 10, so that the gas pressure cannot have an effect on the actuation by way of the hand lever 3. The rear housing part 17, which is located behind the front housing part 16 can be displaced inside the front housing part 16, and has a flow-promoting design, being displaced against the force of the valve spring 8, and specifically with the help of the hand lever 3, so that it now can be actuated independently of the gas pressure with precise metering control.

Abstract: The presented valve (1) is based on two axially adjustable sleeve-shaped valve seat rings (14, 36) that are associated with locking arrangements in the form of annular armature plates (22, 35) and associate holding coils (24, 36). The valve closure member (39) can be variably adjusted via a position adjustment drive. Said valve closure member has a double function. On the one hand, it acts to move the valve seat rings (14, 26) into locking position and, on the other hand, it acts to control the gas flow.

Abstract: The present invention discloses an oil pipe connector including a connector cylinder (abbr. cylinder), and having an oil inlet at front and an oil outlet at rear end of the cylinder; a switch base with a pivot hole interconnected with the interior of the cylinder; a control device, including a connector cap which being a hollow conical shape, the front end having positioning shaft hole interconnected with the interior; a control mechanism including a connecting portion, a positioning shaft and a piston disc coupled together; the positioning shaft being disposed in a positioning shaft hole of the connector cap; a switch device, including a push rod which being a curved lever, a transmission shaft and a switch handle; an end of the push rod linking the control mechanism; the transmission shaft being pivotally coupled to the pivot hole of the switch base of the cylinder; the switch handle being coupled to the connecting shaft lever.

Abstract: A poppet valve assembly is provided for use on a fuel tanker truck which enables the truck's driver to determine whether fuel is flowing through the valve assembly and whether fuel is present in the valve assembly. The valve assembly has a two part housing, one of the parts having a sight glass secured therein. The sight glass is visible through cutouts in the housing. When the poppet valve is opened, fluid flows through a flow channel in the valve assembly. The fluid, being different colors, may be easily seen through the sight glass from a distance.

Abstract: Disclosed herein is an inline valve. The inline valve includes, a housing, a choke member in operable communication with the housing, a portion of the choke member being substantially immobile relative to the housing and a portion of the choke member being mobile relative to the housing. The inline valve further includes, an actuator in operable communication with the movable portion of the choke member, the actuator selectively causing the choke member to deform radially.

Abstract: A pilot valve actuator for use with a hydrant valve has a pilot valve and a removable actuator. The pilot valve blocks communication between a primary hydrant chamber and a piston chamber when in a closed position. Under pressure, the actuator opens the pilot valve against its biasing force permitting the flow of fluid between the hydrant chamber and the piston chamber. The pilot valve is permanently attached to the hydrant valve. The actuator is removable from the pilot valve by a quick disconnect mechanism permitting storage of the actuator remote from the hydrant valve.

Abstract: A valve comprises a housing, a conduit, and a shut-off member, and a plurality of ribs. The conduit is fixed in position relative to the housing. The ribs are spaced from the conduit. The shut-off member is fixed in position within a cavity of the housing via the ribs. The gate has a fluid passageway extending therethrough and is movable relative to the shut-off member between opened and closed positions. The gate is able to linearly reciprocate between opened and closed positions along the center axis of the conduit. The gate is engaged with the shut-off member when the gate is in the closed position in a manner preventing fluid from flowing through the fluid passageway of the gate. The opened position of the gate allows fluid to flow through the fluid passageway of the gate.

Abstract: A system for mixing a first gas flow and a second gas flow includes a conduit defined by a wall for communicating the first gas flow therethrough, an inlet passing through the wall of the conduit for introducing the second gas flow into the conduit, and a valve body disposed within the conduit, the valve body being displaceable in a longitudinal direction with respect to the conduit at the inlet. The conduit includes a bend downstream of the body with respect to a direction of the mixed gas flow. A holder is operably connected at a first end thereof to a downstream end of the valve body, the holder passing through a bore in the wall of the conduit at the bend. An actuator is operably connected to a second end of the holder, the actuator causing, via the holder, the valve body to be displaced in the longitudinal direction.

Abstract: The three-way valve allows fluid flow to be selectively directed to a run outlet, a bypass outlet or both at the same time. The three-way valve includes a flow diffuser with a primary valve seat positioned opposite a bypass valve seat. Choke points and flow restrictions, strategically positioned in the flow diffuser create a substantially flat velocity profile downstream of the bypass outlet. Larger versions of this three-way valve may be used in Vertical Takeoff and Landing (“VTOL”) aircraft. Other versions may be used in ships and other watercraft.

Abstract: A sleeve valve comprising a conduit, a gate, and a shut-off member. The conduit and the shut-off member are fixed in position relative to each other. The gate is movable relative to the shut-off member between opened and closed positions. The gate engages the shut-off member when the gate is in the closed position in a manner preventing fluid from flowing through the fluid passageway of the gate. The opened position of the gate allows fluid to flow through the valve. The valve is devoid of any structure within the fluid passageway of the gate attaching the shut-off member to the conduit.

Abstract: An axially oriented valve for regulating the flow of a fluid, to provide an efficient and quick cycling control of a high volume of air or other fluid flow through the valve, with a minimum of flow resistance when the valve is in the open position. The axial valve includes a valve body having a valve inlet, a valve outlet, and a valve chamber. An annular shaped valve seat within the valve chamber is positioned proximate to the valve inlet, and a piston is contained within the valve chamber, movable within the valve chamber, the piston movable along the axis of the valve, between an open position and a closed position. The piston includes an internal piston chamber and a head seat sealable upon the valve seat with the piston in the closed position, and the piston actuateable between the open valve position and the closed valve position.

Abstract: An actuator, comprising: a housing having a first end and a second end; an actuating device received within an opening located at the second end, the actuating device being secured within the housing by a screw plate; and a biasing device for providing a biasing force to the actuating device when the actuating device is secured within the housing, the biasing device being integrally formed with either the housing or the screw plate or both of them.