It is suitable to be installed on the liquid phase return pipeline at the outlet of tank pump in LPG station. When the pressure in front of the pump exceeds the specified value, the valve will automatically open and play the role of safe return to ensure the safe operation of equipment and pipeline.

It is one of the important safety accessories of pressure vessel. Its function is: when the pressure in the vessel exceeds a certain value, it can automatically open the valve depending on the pressure of the medium itself to quickly discharge a certain amount of medium. When the pressure in the container drops to the allowable value, the valve will automatically close, so that the pressure in the container is always lower than the upper limit of the allowable pressure, which will automatically prevent accidents due to overpressure.

So the safety valve is also known as the final protection device of pressure vessel. The safety valve can open and close automatically according to the working pressure, and is generally installed on the equipment or pipeline of the closed system to protect the safety of the system.