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（1）
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 used to prevent the pressure in pressurized equipment from exceeding the design allowable value, thereby protecting the safety of the equipment and its operators. When the pressure of the medium in the pressurized equipment abnormally increases for some reason and reaches the predetermined set value, the safety valve automatically opens and then discharges to prevent the pressure from continuing to rise. When the pressure of the medium decreases due to the discharge of the safety valve and reaches another predetermined value, the valve automatically closes to prevent the medium from continuing to discharge. When the medium pressure is at normal working pressure, the valve remains closed and sealed.
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