The AP79PS is a Series 79P pneumatic rotary actuator from Asahi/America designed to mount on Type-21 ball valves for quarter-turn valve control. It is configured as Air Open/Spring Close with a Fail Close setting and operates on an 80–120 psi compressed air supply. The unit uses 3/4 in NPT connections and employs standard mounting patterns (ISO 5211 and Namur) to simplify installation with compatible valves and accessories. As part of the Series 79P family, AP79PS materials options include glass-reinforced polyamide, cataphoresis & Rilsan-coated cast aluminum, and 316 stainless steel to suit different service environments.
