It can be opened and closed automatically according to the working pressure of the system. Generally, it is installed on the equipment or pipeline of the closed system to protect the safety of the system.
The pressure relief valve is composed of needle valve I, pressure gauge 2, main valve 3, pilot valve 4 and connecting pipe. [1]
There are two main types of pressure relief valve structures: spring type and lever type. [1]
Adjustment of pressure relief valve opening pressure [2]
1. Accurate and constant safe and stable pressure. Once the pressure is over, the pressure relief valve can be fully opened to release the pressure in time. [2]
When the upper limit of the safety pressure is reached, it can be automatically opened to reduce the pressure to ensure safety. The most common is the pressure relief valve on the pressure cooker at home. It is a simple mechanical pressure relief valve, as well as pressure relief valves for heating and air conditioning systems. It is a water floating pressure relief valve. It is a valve that releases a part of the pressure when the system pressure exceeds the design requirements to allow the system to work normally. [2]
