On behalf of relief valve

Pneumatic control valve is the source of compressed air as a driving force to the cylinder for the actuator and valve positioner through the use of electrical, switches, solenoid valves, valves, etc. to secure his position and the annex to drive the valve to achieve the amount or proportion of switch-type conditioning, industrial automation control system to receive the control signal to complete the regulation of media channels: flow, pressure, temperature and other process parameters. Pneumatic control valve is to control the characteristics of simple, rapid response, and intrinsically safe, explosion-proof without additional measures taken

Pneumatic control valve is the source of compressed air as a driving force to the cylinder for the actuator and valve positioner