... NBR or VITON.Specification: Direct Acting, Normally Closed Air, Water, Oil 2 port 2 position Model2W025-062W025-082W040-102W160-102W160-152W200-202W250 ... operated, Normally closedApplicable pressure range0.10~1.50MpaProof pressure1.5MpaAmbient and fluid temp.-5~185°CStandard voltageDC12V,DC24V,AC24V,AC110V,AC220V ... ,water valvesteam solenoid valve 2W350-35 high temperature water and air solenoid valve