Pneumatic positioner SA-1, SA-1-EP

linearcompact

SA-1 positioner can be fitted on actuators with simple or double effect and operational stroke included between 3÷100 mm for reverse action and the spring extended. Besides, it has operational stroke included between 2÷65 mm for direct and reverse action and the spring compressed for cylinder with max diameter 200 mm. Their operating principle belongs to the force balance type with linear characteristics. SA-1 positioner is very compact and it can be fully installed on the servo-control syste. The feed-back element consists in a spring having a linear characteristic, actuated by the piston movement: no external elements for movement intake are therefore required.