Asahi America BP79PSN Pneumatic Actuator Spring Return

Asahi/America BP79PSN is a Series 79P spring-return pneumatic actuator designed for quarter-turn valves such as ball and butterfly types, delivering reliable failsafe operation when air pressure is removed. Configured as a single-acting (air-to-spring) unit, BP79PSN shares the 79P family’s dual-piston, rack-and-pinion design and supports ISO 5211 mounting and NAMUR accessory interfaces for easy valve integration. Construction options include a glass-reinforced polyamide body with cataphoresis-coated aluminum end caps and a stainless steel output shaft, delivering corrosion resistance suitable for tough process environments. Operating range is 80 to 120 psi (5.5–8.3 bar) with a temperature rating up to 176°F (80°C); in Asahi’s Type-21 fast-pack configurations, BP79PSN is used with 1-1/4 to 1-1/2 inch nominal-size valves.