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 direct action solenoid valve
Structural Principle
Direct acting solenoid valves mainly consist of a valve body, valve core, electromagnetic coil, and control part. Valve bodies are usually made of materials such as cast iron and stainless steel, which have good pressure resistance; The valve core is the control part of the valve, usually made of materials such as copper and stainless steel, and has good sealing performance; The electromagnetic coil is the core component of a direct acting solenoid valve, which generates a magnetic field through electricity and controls the movement of the valve core; The control part is the control system of the solenoid valve, usually composed of solenoid valve drivers, sensors, etc.
Working Principle
It is a principle that combines direct action and pilot type. When there is no pressure difference between the inlet and outlet, after being energized, the electromagnetic force directly lifts the pilot small valve and the main valve closure part upwards, and the valve opens. When the inlet and outlet reach the starting pressure difference, after being energized, the electromagnetic force leads the small valve, and the pressure in the lower chamber of the main valve increases while the pressure in the upper chamber decreases, thereby using the pressure difference to push the main valve upwards; When the power is cut off, the pilot valve uses spring force or medium pressure to push the closing part downwards, causing the valve to close.
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