MANUAL RESET VALVEPositive shut-off for use with gas or oil. Full port valves. Quick closing. Manual reset. Indication of position. Many options available. Approved FM, UL and CSA.手动复位阀门使用在燃气或燃油快速切断场合，需要手动复位。具有位置指示和多种可选件。获得FM,UL,CSA认证。