Electromagnetic valve is an industrial equipment controlled by electromagnetism. It is an automatic basic element used to control fluid. It belongs to actuator and is not limited to hydraulic and pneumatic. It is used in industrial control system to adjust the direction, flow, speed and other parameters of medium. The solenoid valve can cooperate with different circuits to achieve the desired control, and the control accuracy and flexibility can be achieved. There are many kinds of solenoid valves. Different solenoid valves play a role in different positions of the control system. The commonly used ones are one-way valves, safety valves, directional control valves, speed regulating valves, etc
