The working principle of electric control pneumatic valve

working power supply usually have: ACV, listed ACV and listed. The input signal: - mA- V, such as weak current signal. By external regulation electric actuators, and pneumatic valve stem connection after debugging; With electricity as the driving force to drive the pneumatic valve pneumatic hard seal butterfly valve plate and a - ° part of rotary motion. - receive industrial automation control system MA signal to precisely control the pneumatic valve opening, so as to achieve different process parameters such as flow, temperature, pressure regulation and control.