Goole Valve Technology Co.,Ltd
Address: He_yi Industrial Zone,Oubei Town,Wenzhou City,Zhejiang Province,P.R.China
Tel: 86-577-57781015
E_mail: goole4@goolevalve.com
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Structural principle of safety valve（2）
Structural Principle
When the pressure in the system exceeds the opening pressure of the safety valve, the compression of the spring will exceed the design range, causing the valve cover to open. At this point, the fluid enters the space between the valve seat and the piston through the valve body, and opens due to the movement of the piston. The fluid is then discharged from the pressure relief hole of the valve seat, allowing the system's pressure to be released. When the pressure in the system drops below the closing pressure of the safety valve, the elasticity of the spring returns, the valve cover and piston return to their original position, and the valve seat and piston re close, preventing fluid from entering the valve body. The opening pressure and closing pressure of the safety valve are achieved by adjusting the nut.
Working Principle
A safety valve is a special valve in which the opening and closing components are in a normally closed state under external force. When the pressure of the medium in the equipment or pipeline increases beyond the specified value, the medium is discharged outside the system to prevent the pressure of the medium in the pipeline or equipment from exceeding the specified value. Safety valves belong to the automatic valve category and are mainly used on boilers, pressure vessels, and pipelines. They control the pressure to not exceed the specified value and play an important protective role in personal safety and equipment operation.
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