The pneumatic butterfly valve is mainly composed of two parts, namely, the aerodynamic actuator and the butterfly valve. The valve will rotate with the valve, and the circular butterfly panel will open and close accordingly. The valve with the opening and closing function is mainly used to cut off the medium, and has the function of regulating section valve. At present, this valve is mainly used in medium and large caliber pipelines, It is applicable to the case where the medium pressure in the pipeline is small.

How to select various accessories of pneumatic control valve Pneumatic control valve is one of the important links of automatic control process instruments. Correct selection is crucial to the normal operation of the system. In addition to the common parameters such as pressure, temperature, diameter, material, and structural form of the control valve, the selection of pneumatic control valve should also pay attention to the relevant accessories,