... Port size: 1/8 " ~2" 3)Medium: LPG,natural gas,coal gas,firedamp 4)Pressure: 0-10bar ... ~2 "2) Working Medium: air, water, oil, gas, LPG, natural gas,coal gas,firedamp3) Action Type: direct action4) Valve ... -102S-152S-202S-252S-352S-402S-50Aperture of Flow Rate162025354050CV Value4.87.612242948Joint Pipe BoreG3/8G1/2G3/ ... SteelMaterial of Oil SealNBR or VITON LPG or Natural gas or Coal gas solenoid valve