Air Torque Pneumatic Actuator AT051U-D-A F03-N-9D – 90° Rotation

Air Torque Pneumatic Actuator AT051U-D-A F03-N-9D – Rack & Pinion, 90° Rotation, Anodised Aluminium, SIL?3

The Air Torque AT051U-D-A F03-N-9D is a high-precision, double-acting pneumatic actuator equipped with a robust rack & pinion mechanism for smooth 90° rotation. Encased in a hard-anodised aluminium body, this actuator is designed for durability and corrosion resistance in demanding industrial environments. Fully SIL?3 certified, it is ideal for integration into safety-instrumented systems where high torque reliability and fail-safe performance are vital.

Key Features

• Double-Acting Operation (D-A): Ensures controlled motion in both directions for accurate valve control.

• Reliable Torque Delivery: Rack & pinion drive mechanism provides consistent torque throughout the stroke.

• Standard Valve Interface: ISO 5211 F03 flange with N-9D (9?mm square) drive shaft—compatible with a wide range of quarter-turn valves.

• Sturdy Construction: Hard-anodised aluminium housing provides long-term durability and corrosion protection.

• Safety Level: SIL?3 certified for use in functional safety loops.

• Stroke Adjustment: ±5° external adjustable travel stops for precise positioning.

• Accessory Integration: Namur VDI/VDE?3845 interface supports mounting of solenoid valves, switchboxes, and positioners.

Technical Specifications