Self-reliance type pressure pneumatic control valve is introduced

Self-reliance type pressure pneumatic control valve is divided into self-reliance type pressure, differential pressure and flow pneumatic regulator three series. Self-reliance type pressure pneumatic - valve based on pressure point location points before and after valve valve, pressure points in front of a valve used in pneumatic - valve pressure constant before; Pressure points, after valve used in pneumatic - valve after pressure constant. When introducing valve before and after valve pressure at the same time on both sides of the chamber of the actuator, self-reliance type differential pressure pneumatic regulator can be adjusted at the ends of the pneumatic control valve pressure constant, also can be installed on the pipe orifice differential pressure at the ends of the introduction of thin film on both sides of the chamber of the actuator, composed of self-reliance type flow pneumatic control valve, or in other ways after flow detection with self-reliance type differential pressure pneumatic - valve flow control.