... corrosion resistance.Operating principleWhile energized in coil, the electromagnetic power opens the small orifice. Then the pressure in upside of valve reduced, ... pressure: 3 MPaAvailable medium: R134a,R22,R407C,R404A/507,air,water and oil.Optional voltage of solenoid coils: A.C.: ... 8GG3/81.88045100SV1/2GG1/236845100SV3/4GG3/4512058119The Kv value is the water flow in m3/h at a pressure drop across ...