Electromagnetic valve, Electromagnetic valve) is to use Electromagnetic control of industrial equipment, is used to control the fluid automation components, belonging to the actuator, is not limited to hydraulic, pneumatic. In the industrial control system, is used to adjust the direction of the medium, flow, speed and other parameters. Solenoid valve can cooperate with different circuit to achieve the desired control, the control precision and flexibility to be able to guarantee. Solenoid valve, electromagnetic valve, there are many kinds of different work in different position of the control system, the most commonly used is a one-way valve, safety valve, direction control valves, speed regulator, etc.

Solenoid valve selection should follow in turn first safety, reliability, applicability and economy of the four principles, the second is based on the six aspects of the site conditions (i.e., pipe parameters and fluid parameters, pressure, electrical parameters, the movement way, special requirements to choose).