... 250mmMaterial:Cast iron,SS304,SS316Principle: direct action, step-by-step and pilotSeal: NBR, FKM, PTFE , copperFluid: liquid, water, ... special)Viscosity: 22mm2/s Connection: internal thread flangeInstall: horizontal and coil up (customized)Protection grade: IP54 (ex-proof ... : hand reset open and closed OK87 Piston oil,gas,steam,Acetylene,diesel fuel,LPG,LNG Stainless Steel/Cast Iron Solenoid Valve