Do You Know How does a pneumatic control valve positioner work? Here’s Explained.
Digital control valve positioners have started to dominate, yet you should even now know how a pneumatic control valve positioner functions. Fortunately, you just need some basic physics and little mechanical knowledge to understand it. Just take a look. The Pneumatic Control Valve Positioner’s Working Principle . The pneumatic control valve positioner and its valve actuator are controlled by an air supply. There is an instrument, with a range of 3 to 15 pounds for each square inch (psi), and the air output to move the valve actuator. In the instrument input, the air force will act on the bellows, causing it to compress or expand. The bellows connect with the beam, which measures the input from the valve stem through the cam. Likewise, it moves the flapper- nozzle system. Computerized control valve positioners have started to dominate, yet you should in any case know how a pneumatic control valve positioner functions. Fortunately, you just need some essential