Air Torque Pneumatic Actuator AT351U-S10-A F07/F10-N-22DS – 90° Rotation

Air Torque Pneumatic Actuator AT351U-S10-A F07/F10-N-22DS – Rack & Pinion, 90° Rotation, Anodised Aluminium, SIL?3

The Air Torque AT351U-S10-A F07/F10-N-22DS is a robust spring-return pneumatic actuator, offering precise and safe quarter-turn valve control. Equipped with a durable rack & pinion mechanism, this actuator delivers smooth 90° motion and automatically moves the valve to a safe position if air pressure is lost. Encased in hard-anodised aluminium, it ensures high resistance to corrosion and mechanical wear. Fully SIL?3 certified, it is built for integration into safety-critical control systems in demanding industrial environments.

Key Features

• Fail-Safe Design (S10 Spring-Return): Ensures valve defaults to a safe position during pressure loss.

• Consistent Torque Output: Rack & pinion mechanism provides stable actuation through the full stroke.

• Universal Valve Mounting: Supports ISO 5211 F07 or F10 flange configurations with 22?mm square DS22 drive shaft.

• Durable Construction: Anodised aluminium body is rugged and corrosion-resistant for long service life.

• SIL?3 Certified: Compliant with safety-instrumented loop requirements.

• Precision Control: Includes ±5° external travel stops for fine tuning stroke limits.

• Accessory Compatibility: Namur VDI/VDE?3845 mounting interface for solenoids, positioners, or limit switches.

Technical Specifications