Digital electropneumatic positioner is a special device designed for positioning of pneumatic membrane or piston actuators (hereinafter referred to as IM) of shut-off and control valves due to pressure redistribution between pneumatic circuits. As a command signal a standard electrical analogue signal in the range of 4-20 mA is used, fed to an electronic control board with a programmable microcontroller. By incorporating IM stem position feedback into its operating algorithm, the digital electropneumatic positioner reduces or completely removes the stroke mismatch from the control task.
Tell us what you need and get quotes from verified suppliers