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For stepless (infinitely variable) capacity control of air compressors: Suction control valves, bypass valves, bleed valves and engine speed controllers are governed by the signal from the proportional controller.
Operation:
Controller PG is positive acting. Within the control band (see diagram 2) they give a proportionally rising signal at (A) on increasing pressure at (P).
Adjustment:
The set point is adjusted by turning the hand wheel.
*To a higher pressure: clockwise.
*To a lower pressure: counterclockwise.
Technical parameters
Dimensions(mm)
Control signal of PG
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