Molecular formula :
nature : Pilot also said modular or safety valve. By the main valve and two auxiliary valve components. Fu valve is a set of weights or lever-type spring-loaded, the pressure when the equipment exceeds the specified value, the auxiliary valve first moves, but not directly outside venting, but by auxiliary valve to the main valve to pulse role in persuading the main pressure relief valve action. The valve action flexible, open and close delay small, tightly closed. Because of complex structures, and currently only in the security Leakage large boilers and pressure vessels used.
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