... 100% tested Technical data:Orifice diameter: 3 ~ 250mmMaterial:Cast iron,SS304,SS316Principle: direct action, step-by-step and pilotSeal: ... FKM, PTFE , copperFluid: liquid, water, air, steam, oil and gas (acetylene)Ambient temperature: -30 to 60C Fluid temperature: C1: - ... : hand reset open and closed OK87 Piston oil,gas,steam,Acetylene,diesel fuel,LPG,LNG Stainless Steel/Cast Iron Solenoid Valve