The most common failure safety valve?

     
   The Natural Gas Safety Valve is a very important protection valves, are widely used in various pressure vessels and piping systems, when the compression pressure in the system exceeds a predetermined value, it is automatically opened, the excess medium discharged to the atmosphere go to ensure the safety of pressure vessels and piping systems operation, prevent accidents, and when the system pressure back down to the working pressure or slightly lower than the working pressure can automatically shut down. Reliable safety valve work is directly related to the equipment and personal safety, it must be given attention.
    a common cause of valve failure analysis and solutions
    safety valve leakage
   Under normal operating pressure equipment, gas stove safety valve and valve seat sealing surface took place more than allowed levels of leakage, valve leakage will not only cause loss of media. In addition, the media will continue to leak so hard sealing material destruction, but the common safety valve sealing surface is metal on metal, although strive to do is smooth, but to do with pressure situations in the media to absolutely no leakage is very difficult. Therefore, the working medium is steam safety valve at a predetermined pressure value, if the outlet end of the invisible, it can not find a leak, sealing performance is considered acceptable.