Spring Return Pneumatic Actuator – HP75S

Engineered for quarter turn valves, including ball, plug, and butterfly valves, it uses compressed air to drive valve movement in one direction and relies on high tensile internal steel springs to snap the valve back to a pre-set safe position the moment air supply is lost. No manual intervention required.
Built around a rack and pinion body configuration, the HP75S delivers precise 90° rotational movement,-the kind of reliable, repeatable action that industrial processing lines demand across high-frequency open/close cycles. Dual ISO 5211 valve mounting flange hole patterns ensure a secure, compatible fit across a broad range of valve types, while the 17mm drive output shaft and star-drive/pinion configuration provide flexible installation options to suit your setup.

Summary: 

• Configuration: Single-acting, spring return (normally open or normally closed)
• Rotation: 90-degree output for quarter-turn valve and damper applications
• Body: Model size 75 rack-and-pinion pneumatic actuator
• Mounting: Dual ISO 5211 flange hole patterns
• Drive: 17mm equivalent output shaft or socket insert sizing
• Spring material: High-tensile steel for consistent return force

Applications: 
Common applications include;

• Chemical plants
• Petrochemical processing
• Pharmaceutical manufacturing 
• Water treatment facilities 
• Sewage treatment plants
• Power generation, and, 
• HVAC large scale systems