The ARIS pneumatic part-turn actuators provide a uniform torque in a sleek case that is used both for the double and single acting. The pneumatic actuators are available with a variety of accessories and various options. We supply the drives individually or directly on a fully assembled fitting.
PD/PE actuators (type 15 and higher) feature a bi-directional travel stop which allow a ±10° adjustment in both closing and opening directions. This guarantees a range of adjustment between 70° and 110° of actuator stroke. Travel stops are designed to absorb the maximum rated torque of the actuator and the maximum impact load associated with recommended speed stroke.
To increase piston resistance both travel stops arrest the pistons in their part with the largest mass of material. Adjustment of the CCW and CW rotation is effected by turning the respective left (MAX) and right stop (0°) adjustment screws.