Scotch Yoke Pneumatic Actuator

What is important to you when you buy scotch yoke pneumatic actuators?

Torque output, mounting compatibility, reliability, and supply consistency all matter when you are selecting actuators for valve automation.

Hearken Flow scotch yoke pneumatic actuators are designed for high-torque quarter-turn valve control in demanding industrial applications. The piston-driven scotch yoke design provides high breakaway and seating torque, making these pneumatic scotch yoke actuators well suited for heavy-duty valve and damper applications. Available in both double-acting and spring-return (single-acting) configurations, we offer flexible solutions for different valve control and fail-safe requirements. Our scotch yoke pneumatic valve actuators use ISO 5211 mounting interfaces for straightforward valve installation and replacement, with VDI/VDE 3845 interfaces for common valve automation accessories.

Hearken Flow scotch yoke pneumatic actuators are performance-tested to verify torque output and operating performance before shipment. We provide standard and customized configurations to meet different torque, temperature, material, and control requirements for you.

• Structure Types (Heavy Duty Type): Single-cylinder piston and double-cylinder piston configurations for different torque requirements and heavy-duty applications
• Design: Compact, modular construction offering high versatility for on/off and modulation control
• Material: Corrosion-resistant aluminum alloy, carbon steel, and ductile iron with protective surface treatment, depending on the actuator configuration
• Rotation Range: 90° quarter-turn rotation with adjustable travel stops
• Working Pressure: 3.0–8.0 bar
• Temperature Range: Standard temperature range from -20°C to +80°C. Specialized configurations are available for low and ultra-low temperatures down to -60°C and high temperatures up to +160°C
• Torque Output: Wide Torque Output ranging from 15 Nm up to 250,000 Nm, and Spring End Torque up to 110,000 Nm
• Media: Dry compressed air or inert gas, with optimized air consumption for efficient pneumatic operation
• Valve Options: Butterfly valves, ball valves, plug valves, dampers, and industrial flaps
• Optional Accessories: Solenoid valves, limit switch boxes, electro-pneumatic positioners, air filter regulators, pneumatic control valves, and other valve automation accessories
• Advantage: High torque output, high breakaway and seating torque, robust scotch yoke construction, flexible spring-return configurations, and reliable performance for demanding quarter-turn valve applications
• Additional: Need help selecting the right scotch yoke pneumatic actuator? Please contact us at [email protected] for torque sizing, actuator configuration, accessory integration, or OEM requirements.