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Scotch Yoke Type Pneumatic Actuators

Angle of Rotation 0~90°
Output torque Double-acting: 500 ~ 210,000 Nm, Spring-return: 300 ~ 170,000 Nm
Operation pressure 3~7Bar
Ambient temperature High-temperature range: -20 ~ +120°C, Standard range: -20 ~ +80°C Low-temperature range: -40 ~ +80°C, Ultra low-temperature range: -60 ~ +40°C
Detail

The HPY series scotch yoke-type pneumatic actuator is an industrial part-turn valve drive mechanism developed with a modular structure design. Utilizing gas as the power source, it allows flexible replacement of pneumatic modules or spring return modules on both sides of the housing, enabling both double-acting and spring-return functions. The actuator can be equipped with optional accessories such as hydraulic manual override, solenoid valves, and limit switches, and is widely suitable for 0-90° rotating valves including ball valves, butterfly valves, and plug valves.


Design Features：

  • Modular Design: The HPY series scotch yoke-type pneumatic actuator employs a modular architecture that systematically integrates functional components including transmission, cylinder, spring, and manual override modules. This design provides exceptional configuration flexibility, supporting both double-acting and spring-return operation modes to address diverse application scenarios.

  • Corrosion and Wear Resistance: The HPY series scotch yoke-type pneumatic actuator features specially treated piston rods, guide rods, and self-lubricating bearings with advanced surface treatments that significantly enhance wear and corrosion resistance. The housing is coated with a high-performance protective layer, while the inner bore is treated with a PTFE coating, collectively ensuring superior overall corrosion resistance.

  • Corrosion and Wear Resistance: The HPY series scotch yoke-type pneumatic actuator features specially treated piston rods, guide rods, and self-lubricating bearings with advanced surface treatments that significantly enhance wear and corrosion resistance. The housing is coated with a high-performance protective layer, while the inner bore is treated with a PTFE coating, collectively ensuring superior overall corrosion resistance.

  • Universal Connection Standard: The actuator's output accessories comply with NUMAR standards,   while the valve connection dimensions meet ISO 5211 requirements, giving the HPY series actuators excellent interoperability.

  • Versatile Control Options: Hankun Fluid Control possesses extensive expertise in pneumatic systems, enabling customized design of pneumatic circuits tailored to specific customer process requirements.


For the torque table, please refer to 《HITORK Pneumatic Actuator (V4.0--2025.11--HK)》.

HITORK Pneumatic Actuators Brochure(V4.0.—202603--HK).pdf
7MB