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 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 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 control valve apparatus couples pressurized fluid to first and second actuators using first and second double valves. The first double valve includes first and second crossover passages and first and second pilots. The second double valve includes third and fourth crossover passages and third and fourth pilots. A first interconnection couples the first crossover passage with the third pilot fluid inlet. A second interconnection couples the second crossover passage with the fourth pilot fluid inlet. A third interconnection couples the third crossover passage with the first pilot fluid inlet. A fourth interconnection couples the fourth crossover passage with the second pilot fluid inlet. Thus, operation of each pilot depends upon receiving pressurized fluid from the other double valve which is only present when the other double valve is not in a fault condition.

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: A control valve system includes a housing having an inlet port, a first output port, a second output port, and a valve chamber. A primary spool and a secondary spool are independently slidable in the valve chamber. The secondary spool has a first end for abutting against the primary spool and has a second end with a working surface area greater than the working surface areas at the ends of the primary spool. A solenoid valve assembly controllably connects the inlet port to the second end of the secondary spool. A biaser provides a biasing force to the primary spool. A first fluid passage through the primary spool provides fluid communication between the first output port and a second end of the primary spool for displacing the primary spool relative to the secondary spool in an energy saving mode, thereby regulating a pressure at the first output relative to the predetermined magnitude of the biasing force.

Abstract: A control valve system includes a housing having an inlet port, a first output port, a second output port, and a valve chamber. A primary spool and a secondary spool are independently slidable in the valve chamber. The secondary spool has a first end for abutting against the primary spool and has a second end with a working surface area greater than the working surface areas at the ends of the primary spool. A solenoid valve assembly controllably connects the inlet port to the second end of the secondary spool. A biaser provides a biasing force to the primary spool. A first fluid passage through the primary spool provides fluid communication between the first output port and a second end of the primary spool for displacing the primary spool relative to the secondary spool in an energy saving mode, thereby regulating a pressure at the first output relative to the predetermined magnitude of the biasing force.

Abstract: A control valve system having a housing defining a first inlet, a second inlet, a first outlet, a second outlet, and an exhaust to define an intrinsically safe double valve. The double control valve system of the present invention further includes a pair of cross exhaust passages that eliminates the need for complicated timing devices.

Abstract: A control Valve system having a housing defining a first inlet, a second inlet, a first outlet, a second outlet, and an exhaust to define an intrinsically safe double valve. The double control valve system of the present invention further includes a pair of cross exhaust passages that eliminates the need for complicated timing devices.

Abstract: A control valve system having housing defining an inlet, an outlet and an exhaust. A first passage extends between the inlet and the outlet and a second passage extends between the outlet and the exhaust. A first plurality of valves are disposed within the first passage, each being selectively actuated to close, open, or partially open the first passage. A second plurality of valves are disposed within the second passage, each being selectively actuated to close, open, or partially open the second passage. A plurality of reset members are selectively engageable with the first plurality of valves and are operable to actuate the first plurality of valves when a pressure is applied to the plurality of reset members. The plurality of reset members each have an anti-tiedown stem extending therefrom to prevent operation of the control valve system if any of the plurality of reset members is tied down.

Abstract: A control valve system having a housing defining an inlet, an outlet and an exhaust. A first passage extends between the inlet and the outlet and a second passage extends between the outlet and the exhaust. A first plurality of valves are disposed within the first passage, wherein each of the first plurality of valves are movable between a deactuated position where the first passage is closed, an actuated position where the first passage is open, and an intermediate position where the first passage is partially open. A second plurality of valves are disposed within the second passage, wherein each of the second plurality of valves are movable between a deactuated position where the second passage is open, an actuated position where the second passage is closed, and an intermediate position where the second passage is partially open. A plurality of reset members are selectively engageable with the first plurality of valves.