control the basic components of fluid automation. Of course, it is also used in industrial control systems to adjust the direction, flow, speed of related media. And the solenoid valve can achieve the expected control according to the different circuit, and the control accuracy and flexibility can be guaranteed. There are many kinds of solenoid valves, different solenoid valves will be different with the position of the control system, and play a different role, the more commonly used one-way valve, safety valve, direction control valve, speed regulating valve, etc. With its existence, the operation of the equipment will be more stable. In addition, the oil-free air compressor is a state of compressed air without oil and water, which also brings a higher level for the quality of the production products. So it is also a core component, it can be said that the air compressor is not feasible without it. Oil free air pressure mechanical and electrical magnetic valve leakage is blocked, internal leakage is easy to control, safe use; Simple system, then connect to the computer, low price; Action, small power, lightweight appearance; The adjustment accuracy is limited, the applicable medium is limited; Various models, a wide range of uses.