... can be used for pneumatic hydraulic and food machine.Solenoid valves use full-closed magnetic coil and DIN international standard electric ... weight. The flow media enters into upside of diaphragm through throttle hole, then pressure in both side of diaphragm balances, then ... . working pressure: 3 MPaAvailable medium: R134a,R22,R407C,R404A/507,air,water and oil.Optional voltage of solenoid coils: A.C ...