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    Tag: pneumatic valve actuator

    Pneumatic Valve Actuator Working Principle

    Pneumatic valve actuators are actuators that use air pressure to drive open, close or adjust valves. Pneumatic actuators are sometimes equipped with certain auxiliary devices, commonly used are valve positioners and handwheel mechanisms. The function of the valve positioner is to use the feedback principle to improve the performance of the actuator, so that the actuator can achieve accurate positioning according to the control signal of the controller.

    What is a Pneumatic Valve Actuator?

    Pneumatic actuator consists of two parts: actuator and control mechanism (valve). The actuator is the pushing device of the pneumatic valve actuator, it generates corresponding thrust according to the size of the control signal pressure, and pushes the control mechanism to act, so it is a device that converts the size of the signal pressure into the displacement of the valve stem.