... 2W-Z / 2S-Z series ex-proof solenoid valve are improved from 2W/2S valve, they are 2/2way, direct action type. Using some ... : Brass or 2S:Stainless Steel5) Valve Control Style: NC(normal close)6)Orifice Size:16,20,25,35,40,507) Working Pressure ... °CVoltage Range±10%Material of BodyStainless SteelMaterial of Oil SealXNBR 2-way Explosion-proof solenoid valve