Actreg ADA850-F10-F12-DS27 Rack & Pinion Pneumatic Actuator – 90° – Anodised Aluminium – SIL?3
The Actreg ADA850-F10-F12-DS27 is a heavy-duty, industrial pneumatic actuator engineered for precise quarter-turn valve automation. Built with a powerful rack & pinion mechanism, it delivers smooth 90° actuation and is ideal for use with large valves. The actuator features ISO 5211 F10/F12 flange compatibility and a robust 27?mm DS27 square shaft, making it suitable for a wide range of valve types in demanding environments.
Constructed from hard-anodised aluminium, this actuator offers excellent resistance to corrosion and mechanical wear. Certified to SIL?3 (Safety Integrity Level 3), it's perfectly suited for use in safety-instrumented systems across industries such as power generation, oil & gas, water and wastewater, petrochemical, and large-scale industrial automation.
Technical Specifications
Model: ADA850-F10-F12-DS27
Rotation: 90° rack & pinion operation, external adjustable stops ±5°
Mounting Flanges: ISO 5211 F10 and F12 options
Output Shaft: 27?mm square DS27
Housing Material: Hard-anodised aluminium—durable and corrosion-resistant
Actuation Types: Available in both double-acting and spring-return styles
Operating Pressure: 2.5–8?bar compressed air
Temperature Range: Standard industrial (approx. −20?°C to +80?°C)
Safety Certification: SIL?3 rated, anti-blowout shaft design
Key Benefits & Features
| Feature | Benefit |
|---|
| High Torque Output | Ideal for actuating large valves with demanding torque requirements |
| Universal Mounting | ISO F10/F12 flanges paired with DS27 shaft for broad valve compatibility |
| Accessory Mounting | Namur VDI/VDE 3845 interface for solenoid valves, switches, and positioners |
| Maintenance-Friendly | Modular internals and external stop adjustment make field service easy |
| Safety-Designed Build | Anti-blowout shaft and SIL?3 Compliance ensure safety in critical systems |
