CHINA
BL6-07
Emergency Control and Shutdown Systems
Pressure relief valve is a type of auto valve which automatically lifts to discharge fluid of rated relieving capacity when system pressure exceeds the preset value, and when the pressure decreases to normal value, the valve recloses to stop discharging. It is an important device of pressured vessel and process system, and widely used in the fields of aerospace,petrochemistry, energy, medicine, metallurgy, etc..