Introduction the A pilot operated safety valve

       Pilot type safety valve is a safety valve, its opening and closing parts of external force in a normally closed state, when the device or medium pressure inside the pipe increases, exceeds the set value automatically open, through the medium outside the system to prevent discharge piping or equipment in the medium pressure exceeds the set value.

      Safety valves are automatic valves, mainly used for boiler, pressure vessels and pipelines, the control pressure does not exceed the specified value, the protection plays an important role in personal safety and equipment operation. According to the safety valveopening height can be divided into Weiqi safety valve and safety valve, micro open type safety valve opening travel height: ≤ 0.05d0(minimum emissions throat diameter); safety valve opening heightwas ≤ 0.25d0 (minimum emissions throat diameter).

      Pilot type safety valve structure according to points, to be divided into vertical hammer, lever, spring type, and pilot type (pulse); by the body structure to points, can be divided into two closed and not closed for. Closed safety valve that is not ruled out media leaks, all along the exit discharge to designated locations, usually used in the toxic and corrosive medium. 

Linear Bearing

     Used for air and steam safety valve,safety valve used is not closed. Selection of products for the safety valve, should according to the actual sealing pressure to determine.For the spring-loaded safety valve, in a nominal pressure (PN)range, has several spring working pressure level, in addition to specify when ordering safety valve type, name, medium and temperature, the valve sealing pressure should be specifiedotherwise, the maximum sealing pressure by supply.

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