gas valve,valve Gas species: natural gas, LPG, man-made coal gas 1/2",3/4", 1" for choose reset manually brass or iron gas valve,valve•Gas species: natural gas, LPG, man-made coal gas and other noncorrosive gases•Valve opening: reset manually•Valve closing: direct current pulse drive or manually•Closing time: <1s • brass or iron•1/2",3/4", 1" for choose