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Pilot Operated Piston Valve

Product categories of Pilot Operated Piston Valve, we are specialized manufacturers from China, Pilot Operated Piston Valve, servo piston solenoid valve suppliers/factory, wholesale high-quality products of piston pilot-operated solenoid valves R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
BURKERT Type 1/2'' 5404 High Pressure Solenoid Valve

Brand: Brando

Packaging: boxes,cartons,pallets

Supply Ability: 100000pcs per month

BURKERT Type 1 2 5404 High Pressure Solenoid Valve Type Description The 5404 valve is a servo assisted piston valve available in NC and NO versions A minimum differential pressure is required for the valve switching function The solenoid coils are...
1'' BURKERT Type Servo-assisted 2/2-way Piston Valve

Brand: Brando

Packaging: boxes,cartons,pallets

Supply Ability: 100000pcs per month

1 BURKERT Type Servo assisted 2 2 way Piston Valve Type Description The 5404 valve is a servo assisted piston valve available in NC and NO versions A minimum differential pressure is required for the valve switching function The solenoid coils are...
EVRA 40 Danfoss Type Solenoid Valve Ammonia 220V

Brand: Brando

Packaging: Box,Carton,Pallet

Supply Ability: 35 sets per day

EVRA 40 Danfoss Type Solenoid Valve Ammonia 220V Product Features of ammonia refrigeration solenoid valve EVRA is a direct or servo operated solenoid valve for liquid suction and hot gas lines with ammonia or uorinated refrigerants EVRA valves are...
042H1142 EVRA 40 NH3 R717 Ammonia Solenoid Valve

Brand: Brando

Packaging: Box,Carton,Pallet

Supply Ability: 35 sets per day

042H1142 EVRA 40 NH3 R717 Ammonia Solenoid Valve Product Features of ammonia refrigeration solenoid valve EVRA is a direct or servo operated solenoid valve for liquid suction and hot gas lines with ammonia or uorinated refrigerants EVRA valves are...
EVRA 25 Danfoss Type Ammonia Refrigeration Solenoid Valve

Brand: Brando

Packaging: Plastic bag, Box, Carton, Pallet

Supply Ability: 1500 pcs per week

EVRA 25 Danfoss Type Ammonia Refrigeration Solenoid Valve Product features of 032F803432 EVRA 25 Refrigeration Solenoid Valve EVRA is a direct or servo operated solenoid valve for liquid suction and hot gas lines with ammonia or uorinated...

China Pilot Operated Piston Valve Suppliers

Pilot Operated Piston Valve is a kind of indirect acting solenoid valves (also called servo operated or pilot operated) use the pressure differential of the medium over the valve inlet and outlet ports to open and close the valve. Therefore, they typically require a minimum pressure differential of around 0.5 bar.

The inlet and outlet ports are separated by a piston. For a normally closed indirect acting Solenoid Valve, the inlet pressure (above the piston) and supporting spring above the piston will ensure that the valve remains closed. The chamber above the piston is connected by a small channel to the low-pressure port. This connection is blocked in the closed position by the plunger and valve seal. When the solenoid is energized, the pilot orifice is opened, which causes the pressure above the piston to drop. Because of the pressure difference on both sides of the piston, the piston will be lifted and the medium can flow from inlet port to outlet port. A normally open valve has the same components, but works in the opposite way.

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