Pneumatic system as an example to illustrate the solenoid valve in the industrial control applications. The so-called pneumatic system, is to air as the medium of the control system. Pneumatic system, the energy of the medium is usually air. Use in real time, usually the volume of atmospheric air to be compressed, thereby increasing its pressure. Compressed air mainly by acting on the piston or vane to be successful. Pneumatic system, the role of the solenoid valve is controlled in the control system in accordance with the requirements of the various states to adjust the compressed air, pneumatic system also needs the cooperation of other components, including power devices, actuators, switches, display devices and other auxiliary equipment. Power components including compressors, including air cylinder actuator. These are pneumatic systems indispensable part. The body is the control algorithm was
In order to achieve the important equipment. Such as the one-way valve so that compressed air from the compressor into the tank, when the compressor is turned off, preventing air flow the opposite direction; safety valve when the pressure within the tank exceeds the allowable limit, the compressed air can be discharged; directional control valve by alternately on the two interfaces cylinder pressure and exhaust to control the direction of movement; speed control valve actuator can be easy to achieve variable speed.