... air, water, oil, gas, LPG, natural gas,coal gas,firedamp3) Action Type: direct action4) Valve Body: 2W: Brass or 2S:Stainless Steel5) Valve Control ... AC220V ,AC380V 50/60HZ,For more information, please contact with us. Model2W160-102W160-152W200-202W250-252W350-352W400-402W500-502S-102S ... ±10%Material of BodyStainless SteelMaterial of Oil SealNBR or VITON LPG or Natural gas or Coal gas solenoid valve