Machinery & Equipment
Digital Valve Positioner
There are three types of positioners: Pneumatic positioners. These devices receives a pneumatic (air) signal from the controller and output a pneumatic signal to the actuator. Analog, or electro-pneumatic, positioners. Here, the input signal is electrical, rather than pneumatic. Digital, or smart, positioners. These positioners also receive an electrical signal, but it’s digital as opposed to analog. Digital positioners came on the scene about 20 years ago, but they only…
- Types
- Single Acting Positioner · Double Acting Positioner
- Applications
- Oil and Gas · Chemical · Pharmaceutical Manufacturing
5 editions9 January 2026