Pneumatic positioner is an useful interlinking device controlling cylinder valve movement in proportion to pneumatic signal ranging between 0.2 to 1 bar (3 to 15 psi) or split ranges. The salient features of Schrader Pneumatic Positioner are:
It is compact.
Works effectively under adverse environmental conditions
It is economical due to minimal air consumption.
Provision of orifice-disc to prevent hunting in small size actuators.
Convenient changeover from single acting to double acting and vice versa.