... action solenoid valve 2)Port size: 1/8 " ~2" 3)Medium: LPG,natural gas,coal gas,firedamp 4)Pressure: 0-10bar 2W / 2S series solenoid valve ... ) Working Medium: air, water, oil, gas, LPG, natural gas,coal gas,firedamp3) Action Type: direct action4) Valve Body: 2W: Brass or 2S:Stainless Steel5 ... %Material of BodyStainless SteelMaterial of Oil SealNBR or VITON LPG or Natural gas or Coal gas solenoid valve