Product Overview
The AIR TORQUE AT101U D A is a double-acting pneumatic rotary actuator engineered for precise quarter-turn (90°) operation of industrial process valves. Manufactured by AIR TORQUE, a globally recognized brand in rack-and-pinion actuation technology, this actuator converts compressed air energy into controlled rotary torque through a precision-machined rack-and-pinion mechanism. The AT101U D A is designed to automate ball valves, butterfly valves, and plug valves across demanding process environments, delivering reliable open/close positioning with consistent torque output in both clockwise and counter-clockwise directions. Its double-acting configuration provides powered rotation in both directions, ensuring positive valve positioning without reliance on spring return force.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Rotary Actuator (Quarter-Turn Valve Actuator) |
| Model Designation | AT101U D A |
| Actuation Type | Double-Acting (Air-to-Open / Air-to-Close) |
| Operating Pressure | Standard Industrial Grade (Up to 8 bar / 116 psi) |
| Rotation Angle | 90° (Quarter-Turn) with adjustable travel stops ±5° |
| Mounting & Connection | Standard ISO 5211 Valve Mounting Flange / Namur Interface |
| Body Material | Anodized Aluminum Alloy Housing |
| Air Connection | Namur Standard Solenoid / Air Port Interface |
Engineering Features & Advantages
- Precision Rack-and-Pinion Performance: The dual-rack and pinion design delivers balanced torque output with minimal backlash, ensuring accurate and repeatable quarter-turn valve positioning across the full 90° stroke.
- Double-Acting Reliability: Powered rotation in both directions provides positive valve actuation without spring fatigue concerns, ideal for fail-safe or fail-last process control strategies.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hard-anodized aluminum body and corrosion-resistant internal components for extended service life in harsh environments.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, featuring ISO 5211 mounting and Namur interface for seamless integration with standard solenoid valves and positioners.
- Adjustable Travel Stops: External mechanical stops allow precise ±5° adjustment of open and closed positions, enabling accurate valve alignment and seat protection.
Typical Industrial Applications
The AIR TORQUE AT101U D A pneumatic rotary actuator is widely deployed in heavy industrial process control environments, including chemical and petrochemical processing plants for automated ball and butterfly valve operation, water and wastewater treatment facilities for flow isolation and diversion, oil and gas pipeline systems requiring reliable quarter-turn valve actuation, and power generation plants for steam and cooling water circuit control. Its
PRODUCT IMAGES
AIR TORQUE AT101U D A Pneumatic Rotary Actuator
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine AIR TORQUE AT101U D A Pneumatic Actuator. This Italy-made pneumatic actuator features a rack and pinion design, delivering reliable torque for quarter-turn valve automation in industrial systems.