Hao Wolfowitz QDQ421F pneumatic emergency shut-off valve

Hao Wolfowitz QDQ421F pneumatic emergency shut-off valve is a safety valve, installed in the LPG (gas), liquid and vapor piping, and supporting the use of remote gas source, the use of air control valve open - closed to the pipeline Large leak occurred or when the tank on fire, so that even a quick manual air relief, or high temperature ≥75 ℃ fusible alloy melts and cylinder automatic pressure relief valve is rapidly closed and stanch, play a security role. / Ammonia emergency shut-off valve / for ammonia / gas tanks, pipelines cut off access control safety valve flow. In equipment failure, corrosion damage, seal failure, or in the event of an emergency, to cut off the upstream gas source, to avoid accidents expand the scope of the control effects of the accident, reduce accident losses. For more product information, please come to our main site. Because the site constraints, only trouble you go to the company website address Contact inquiry.