Electromagnetic valve (Electromagnetic valve) is an industrial equipment used for Electromagnetic control. It is an automatic basic component used to control the fluid. It belongs to the actuator and is not limited to hydraulic and pneumatic system. Used in industrial control systems to adjust the direction, flow, speed, and other parameters of the medium. Solenoid valve can cooperate with different circuits to achieve the desired control, and control precision and flexibility can be guaranteed. There are many kinds of solenoid valve, different solenoid valve in the control system in different positions play a role, the most commonly used is one-way valve, safety valve, direction control valve, speed control valve and so on.