Abstract: A redundant valve manifold system includes at least two automatic valves coupled to one another and at least two automatic isolation valves each corresponding to one of the at least two automatic valves. Each of at least two automatic isolation valves is operatively coupled to one of the at least two automatic valves and isolates the one of the at least two automatic valves when the one of the at least two automatic valves is removed from the system to deliver media to an outlet.

Abstract: A poppet valve includes an inlet port, a first outlet port, a second outlet port, a first exhaust port, a second exhaust port, and a spindle. A first poppet element and a second poppet element each float relative to the spindle. A first piston and a second piston are fixed relative to the spindle. The spindle moves from an initial centered closed position to a first actuated position or a second actuated position to direct air flowing from the inlet port to the first outlet port or the second outlet port, respectively. The initial centered closed position is located between the first actuated position and the second actuated position. A housing contains the spindle, the first poppet element, the second poppet element, the first piston and the second piston.

Abstract: A double valve includes a first unitary valve assembly and a second unitary valve assembly. Each unitary valve assembly includes a first outlet port, a second outlet port, and a spool. A first pilot assembly and a second pilot assembly are coupled to the first unitary valve assembly and the second unitary valve assembly, respectively. A plate is coupled to the unitary valve assemblies and includes a passage to provide a first common outlet passage that is coupled to the respective first outlet ports of the unitary valve assemblies and a second common outlet passage that is coupled to the respective second outlet ports of the unitary valve assemblies. When the spools are in a first position, fluid flows through the first common outlet passage, and when the spools are in a second position, the fluid flows through the second common outlet passage.

Abstract: A handheld device according to an exemplary embodiment of this disclosure, among other possible things, includes an emergency stop valve including an inlet, at least one outlet, an exhaust, a main passage, and a stem passage. Air flows from the inlet to the outlet and from the outlet to the exhaust during normal operation of the handheld device, and the inlet is blocked and the air is exhausted through the exhaust during emergency operation of the handheld device. The handheld device includes a valve stem assembly received in the main passage, and the valve stem assembly includes a button and a cavity having a pocket. The handheld device also includes a locking stem including an end portion, and the locking stem is received in the stem passage and the end portion of the locking stem is received in the cavity of the valve stem assembly.

Abstract: A valve includes a valve body including a main passage defining a first volume and a second volume. The valve also includes a valve spool moveable relative to the valve body. The valve spool includes a central vent passage capable of fluid communication with each of the first volume and the second volume. Air flows between the first volume and the second volume through the central vent passage as the valve spool moves relative to the valve body and as the valve changes between an actuated position and a non-actuated position.

Abstract: An energy saver valve includes a first spool (12) and a second spool (18) slidably received in a passage (24) of a housing (8). The first spool and the second spool are separate components. The energy saver valve also includes a first outlet port (40), a second outlet port (42), and a resilient member (34) located in a resilient member chamber (36) that biases the second spool towards the first spool. Fluid exits the first outlet port at a first pressure when the energy saver valve is in an initial position, and another passage (58) provides fluid communication between the fluid in the resilient member chamber and the first outlet port. The fluid exits the second outlet port at a second pressure when the energy saver valve is in an actuated position. The first pressure is less than the second pressure.

Abstract: A valve assembly includes a valve including an inlet and an outlet, and a soft start valve in a normally closed position and located upstream of the valve. The soft start valve opens when a percentage of an outlet pressure at the outlet of the valve to an inlet pressure of the inlet of the valve reaches a predetermined percentage to allow fluid to flow through the soft start valve to the valve.

Abstract: A double valve includes a first unitary valve assembly and a second unitary valve assembly. Each unitary valve assembly includes a first outlet port, a second outlet port, and a spool. A first pilot assembly and a second pilot assembly are coupled to the first unitary valve assembly and the second unitary valve assembly, respectively. A plate is coupled to the unitary valve assemblies and includes a passage to provide a first common outlet passage that is coupled to the respective first outlet ports of the unitary valve assemblies and a second common outlet passage that is coupled to the respective second outlet ports of the unitary valve assemblies. When the spools are in a first position, fluid flows through the first common outlet passage, and when the spools are in a second position, the fluid flows through the second common outlet passage.

Abstract: A double valve includes a first unitary valve assembly and a second unitary valve assembly. Each unitary valve assembly includes a first outlet port, a second outlet port, and a spool. A first pilot assembly and a second pilot assembly are coupled to the first unitary valve assembly and the second unitary valve assembly, respectively. A plate is coupled to the unitary valve assemblies and includes a passage to provide a first common outlet passage that is coupled to the respective first outlet ports of the unitary valve assemblies and a second common outlet passage that is coupled to the respective second outlet ports of the unitary valve assemblies. When the spools are in a first position, fluid flows through the first common outlet passage, and when the spools are in a second position, the fluid flows through the second common outlet passage.

Abstract: An energy saver valve includes a first spool (12) and a second spool (18) slidably received in a passage (24) of a housing (8). The first spool and the second spool are separate components. The energy saver valve also includes a first outlet port (40), a second outlet port (42), and a resilient member (34) located in a resilient member chamber (36) that biases the second spool towards the first spool. Fluid exits the first outlet port at a first pressure when the energy saver valve is in an initial position, and another passage (58) provides fluid communication between the fluid in the resilient member chamber and the first outlet port. The fluid exits the second outlet port at a second pressure when the energy saver valve is in an actuated position. The first pressure is less than the second pressure.

Abstract: A valve body has an elongated bore in communication with an inlet port and an outlet port. A valve element is movable within the bore between deactuated and actuated positions. A valve sensor generates a sensor signal indicative of an instantaneous parameter of the valve that changes between the deactuated and actuated positions. A logic unit receives the sensor signal and a pilot command signal that actuates the valve. A predetermined change in the pilot command signal causes the logic unit to determine a cycle parameter responsive to a time period between two predetermined events. At least the beginning or end of the time period corresponds to a predetermined value of the sensor signal. The individual determinations of the cycle parameter are accumulated to obtain an expected cycle parameter. The logic unit generates an indication signal when the cycle parameter exhibits a predetermined variance from the expected cycle parameter.

Abstract: A double valve having inlet, outlet, and exhaust ports maintains an outlet pressure below one percent of inlet pressure during a faulted state while maintaining a relatively small exhaust for reduced overall valve size. Crossover passages receive inlet pressure through main crossover poppets when the respective valve units are not in a deactuated position. When the valve units are in a deactuated position, then the crossover passages receive inlet pressure through respective bypass passages whose flow rate can be controlled independently from the size of the crossover poppets. The use of bypass passages provides particular benefits for double valves for non-press applications which have a ratio of exhaust flow coefficient to inlet flow coefficient that is less than about 2.5.

Abstract: A valve body has an elongated bore in communication with an inlet port and an outlet port. A valve element is movable within the bore between deactuated and actuated positions. A valve sensor generates a sensor signal indicative of an instantaneous parameter of the valve that changes between the deactuated and actuated positions. A logic unit receives the sensor signal and a pilot command signal that actuates the valve. A predetermined change in the pilot command signal causes the logic unit to determine a cycle parameter responsive to a time period between two predetermined events. At least the beginning or end of the time period corresponds to a predetermined value of the sensor signal. The individual determinations of the cycle parameter are accumulated to obtain an expected cycle parameter. The logic unit generates an indication signal when the cycle parameter exhibits a predetermined variance from the expected cycle parameter.

Abstract: A sensing module for a fluid valve utilizes a sensor body having a sensing chamber. An extension member is fixedly coupled to a main valve element, is slidable within the sensing chamber along a first axis, and has an inclined cam surface. A plunger has a cam follower for engaging the cam surface and is slidable along a second axis between a first position when the valve element is in its deactuated position and a second position when the valve element is in its actuated position. The plunger is exposed to the sensing chamber. A sensing switch is coupled to the plunger for generating a switch signal indicative of the first and second positions. The valve body and the sensing body cooperate to form a fluid passage between the outlet port and the sensing chamber, and the plunger moves to the second position when the valve element is in the deactuated position if a fluid pressure greater than a predetermined pressure is present at the outlet port.

Abstract: A system for selectively controlling movement of a piston between first and second positions, the system comprising a controller selectively actuated to enable fluid communication between a device and a source of pressurized fluid, a control valve for enabling fluid communication between a control system and the source of pressurized fluid, a sensing system for identifying the first and second positions, a monitoring valve selectively actuated by the at least one sensing valve for exhausting the flow of pressurized fluid, wherein the monitoring actuator remains actuated until the control valve is deactuated, and a latching mechanism selectively capable of engaging the piston when a loss of pressurized fluid has been identified.

Abstract: A control valve for operating a fluid-actuated device includes a fluid inlet, a fluid outlet and a passage in fluid communication between the fluid inlet and the fluid outlet, the passage defining a longitudinal axis. A valve seat is disposed in the passage and includes an upstream diameter and a downstream diameter, the downstream diameter smaller than the upstream diameter. A ball poppet is positionable in a seated line contact position with the valve seat. The valve seat has a valve seat angle relative to a centerline of the longitudinal axis that is greater than an angle formed by the centerline and a line tangent to the ball poppet at the seated line contact position.

Abstract: A double valve is constructed from first and second unitary valve assemblies each having a respective inlet port, a respective outlet port, a respective exhaust port, a respective first cross-mirror port, and a respective second cross-mirror port. A first plate is coupled to the first and second unitary valve assemblies and includes respective passages to provide a common inlet port coupled to the respective inlet ports of the first and second unitary valve assemblies and a common outlet port coupled to the respective outlet ports of the first and second unitary valve assemblies.

Abstract: The redundant valve system 10 of the preferred embodiments includes a first valve unit 12, a second valve unit 14, a third valve unit 16, a first diagnostic device 18, a second diagnostic device 20, and a control unit 22. The third valve unit has a first position that allows fluid flow toward the first valve unit and a second position that allows fluid flow toward the second valve unit. The first diagnostic device and the second diagnostic device are adapted to detect the presence of a fault in the first valve unit and the second valve unit, respectively. The control unit is coupled to the third valve unit and adapted to cycle between a first operation mode that requests the first position for the third valve unit and a second operation mode that requests the second position for the third valve unit.

Abstract: A fluid control valve includes an adjustable soft start capability and pressure indicator device. The fluid control valve isolates an input port and connects an outlet port to an exhaust port when the fluid control valve is in its closed position. A system is provided for locking the fluid control valve in the closed position. The indicator device is used to provide an indication of the pressure within the outlet port to ensure safe operation.

Abstract: A double valve is reset when a source of pressurized fluid is connected to a reset port. When the source of pressurized fluid is removed from the reset port, a first reset piston is retracted so that a second pilot chamber receives pressurized fluid while a first pilot chamber continues to be vented. A second reset piston is retracted after a predetermined delay time following retraction of the first reset piston, the predetermined delay time being sufficient to allow the second pilot chamber to become substantially pressurized. If a second pilot valve is actuated when the second reset piston is retracted, then the pressurized fluid in the second pilot chamber drives the second movable valve unit out of a deactuated position during a time that pressurized fluid in the first pilot chamber is insufficient to drive the first movable valve unit out of a deactuated position.