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
Structural Principle
There are many forms of safety valves, but they are usually composed of three main parts: valve body, valve core, and pressurized load. The valve body is connected to the pressurized equipment, and the valve core bears the pressure of the internal medium of the equipment below. There is a pressurized load above it. When the internal pressure of the equipment is at the normal value, the pressurized load is greater than the medium pressure. Therefore, the valve core is tightly pressed on the valve seat, and the safety valve is in a closed state; When abnormal overpressure occurs inside the equipment, the pressure of the medium inside the equipment exceeds the pressurized load, the valve core is pushed open, the safety valve opens, and the medium is discharged from the valve. When the internal pressure of the equipment returns to normal, the valve core returns to the valve seat, and the safety valve closes.
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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