What parameters are needed for the selection of pneumatic control valve?

Parameters required for selecting pneumatic control valve include:

1, medium type (gas, liquid or vapor).

2. Density or specific gravity of the medium.

3. Pressure before and after the valve.

4. Flow and temperature.

Pneumatic control valve takes compressed air as power source and cylinder as actuator, and drives the valve to realize on-off or proportional adjustment with the help of electric valve positioner, converter, solenoid valve, position maintaining valve and other accessories, and receives the control signal of industrial automation control system to complete the adjustment of various process parameters such as flow, pressure and temperature of pipeline medium.

Pneumatic control valve is characterized by simple control, rapid response, intrinsic safety and no need for additional explosion-proof measures.