Digital Valve Positioner Market Product and Application Segmentation and Strategies with Forecast Till Period, 2019-2025
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.
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