Asahi B79PAS-120PSI-112INLBS-138-2 Pneumatic Actuator

ASAHI/B79PAS-120PSI-112INLBS-138-2 Pneumatic Actuator is a single-acting rotary actuator in Asahi/America’s Series 79PA lineup, engineered for valve actuation with air-open/spring-close operation. Designed for an air supply range of 80 to 120 psi, it delivers 112 in-lbs of torque and uses aluminum with a Rilsan coating for corrosion resistance in demanding environments. The actuator offers ISO 5211 mounting and NAMUR-compatible end configurations for straightforward valve and accessory integration, and its aluminum/Rilsan construction is characteristic of the Series 79PA family. Rated for temperatures up to 176°F (80°C), it is well suited for chemical, water treatment, and other process piping environments where robust, compact actuation is needed. In fail-safe service, pressurized air opens the valve while the internal spring returns it to the closed position when air is removed, making it a reliable choice for quarter-turn ball and butterfly valves where a compact, corrosion-resistant, single-acting solution is required.