VALSTEAM ADCA PP981 PNEUMATIC POSITIONER POSITIONERS & CONVERTORS

The ADCATROL PP 981 positioner requires an input signal of 0,21bar (315psi) for the proportional control actuator. The positioner compares the output signal from a controller with the position feedback and varies a pneumatic output signal to the actuator accordingly. The actuator position is therefore guaranteed for any controller output signal and the effects of varying differential pressure.

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