The Safety valve is a security valve, its opening and closing parts of the external force is normally closed state, the media pressure when the equipment or piping, open automatically when you exceed the specified value, emissions of media outside the system to preventmedium pressure piping or equipment exceeds the set value. The safety valves are automatic valves used in boilers, pressure vessels and piping, control pressure does not exceed the specified value, play an important protective effect on personal safety and equipment operation.

Opening height can be divided into Weiqi safety valve and safety valve safety valve valve, inching safety valve opening stroke height: the