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Actuator Series 90/91 Series 90/91 actuators are rack and pinion, opposed-piston actuators available in two versions: double acting for rotation of 90°, 135° and 180°, and spring return for 90° rotation. Their ideal use is actuating butterfly, ball or plug valves, but they can be applied anywhere a rotation of 90°, 135° or 180° is needed. Rotated on low friction acetal bearings, units are well suited to handle offset loads to the gear and output shaft assembly. Series 90/91 actuators

Actuator Series 90/91 Stainless Controls takes pride in introducing the Stainless Steel Series 90/91 quarter turn pneumatic actuator. These rack and pinion, opposed-piston actuators have been designed to incorporate innovative, high performance features into a compact, rugged and reliable modular product line. All models are suitable for both on/off and throttling applications. The 316 Stainless Steel construction provides excellent internal and external corrosion resistance, making these actuators ideal for chemical, sanitary, food and beverage, marine, mining and pharmaceutical applications. We