What is the structure and working principle of pneumatic control valve?

Structure and working principle of pneumatic control valve: \x0d\ Pneumatic control valve uses compressed air as power source and air 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 keeping 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. \x0d\ Purpose and characteristics of pneumatic control valve: \x0d\ 1, purpose \x0d\ is a right-angle rotary structure, which can be used with valve positioner to realize proportional adjustment; V-shaped valve core is most suitable for various adjustment occasions, with large rated flow coefficient, large adjustable ratio, good sealing effect, sensitive adjustment performance and small volume, and can be installed vertically and horizontally. Suitable for controlling gas, steam, liquid and other media. \x0d\2。 Features \x0d\ is a right-angle rotating structure, consisting of V-shaped valve body, pneumatic actuator, positioner and other accessories; There is an inherent flow characteristic with approximately equal percentage ratio; Adopt double bearing structure, small starting torque, excellent sensitivity and induction speed; Super shearing ability.