The Role of The Valve Positioner

The role of valve positioner

1.Improve the static characteristics of the regulating valve and improve the linearity of the valve position.

2. Improve the dynamic characteristics of the regulating valve and reduce the transmission delay of the regulating signal.

3. Change the flow characteristics of the regulating valve.

4. Change the response range of the regulating valve to the signal pressure to realize split-range control.

5. Reverse valve action.

The role of electric valve positioner

1. When the fluid is a viscous fluid or the fluid contains solid suspended matter, the use of a positioner can reduce the resistance of the fluid to the movement of the valve stem.

2, improve the flow characteristics of the regulating valve.

3. The electric valve positioner can overcome the transmission lag of the control signal and improve the response speed of the valve.