Pneumatic principle and structure of the pneumatic control valve

Pneumatic type pneumatic control valve is petroleum, chemical, electric power, metallurgy and other industrial enterprises one of the widely used industrial process control instrument. Usually are connected by a pneumatic actuators and pneumatic control valve installation and debugging after the formation of the combination instrument. Pneumatic pneumatic control valve is compressed air as power source, cylinder as actuator, and by means of electric valve positioner, converters, solenoid valve, a valve to drive the valve such as attachment, realize the switch quantity or proportion type adjustment, industrial automation control system receives the control signal to complete conditioning pipeline medium: flow, pressure, temperature and other process parameters. Pneumatic pneumatic control valve is to control the characteristics of simple, quick response, and intrinsically safe, do not need another explosion protection measures.