... 1/8 " ~2" 3)Medium: LPG,natural gas,coal gas,firedamp 4)Pressure: 0-10bar 2W / 2S series solenoid valve ... ~2 "2) Working Medium: air, water, oil, gas, LPG, natural gas,coal gas,firedamp3) Action Type: direct action4) Valve Body: 2W: ... Viscosity20CST BelowWorking Pressure2W:1.0/2WH:3.5Max. Pressure ResistanceAir 0~0.7, Water 0~0.5 ... Oil SealNBR or VITON LPG or Natural gas or Coal gas solenoid valve