DR00018U

Swagelok AT Series pneumatic rotary actuator

Description:
The product is a double-acting, rack-and-pinion actuator designed for the operation of quarter-turn valves, including ball and butterfly valves. It converts compressed air into precise rotary motion, ensuring repeatable and reliable valve actuation in both standard industrial environments and hazardous areas.
The actuator features a compact, balanced design that delivers consistent torque throughout the 90° stroke. It complies with EN ISO 5211 mounting standards for direct valve installation and is suitable for automated systems requiring accurate torque control and SIL-rated functional safety performance.

Key Feature:
- Double-acting pneumatic operation (air-to-open / air-to-close)
- Rack-and-pinion mechanism for smooth, uniform torque output
- EN ISO 5211 compliant mounting interface for direct valve coupling
- Certified for hazardous-area use (ATEX / IECEx)
- SIL 3 capable in accordance with IEC 61508
- Wide operating temperature range
- Durable anodized aluminum housing with corrosion-resistant finish
- NAMUR-compatible for accessories such as solenoid valves, positioners, and limit switches

Specification:
- General:
Manufacturer: Swagelok
Actuator Series: AT Series
Model / Type: DR00018U
Serial Number: 19269915
Valve 3-ways body, serial: 3160002676058
Model/ Type: SS-83XTS6-A15XD-14345
Operation: Double-acting
Rotation Angle: 90° (quarter turn)
Direction of Rotation: CW / CCW (configurable)

- Torque & Pneumatic Data:
Rated Output Torque: 18.3 Nm @ 5.5 bar
Nominal Supply Pressure: 5.5 bar
Maximum Supply Pressure: 8 bar
Air Connection: G 1/8"
Operating Medium: Clean, dry, non-lubricated instrument air

- Mechanical Interface:
Valve Mounting Standard: EN ISO 5211
Mounting Size: ISO 5211 (AA1 attachment)
Shaft Interface: Square drive (ISO compliant)

- Environmental & Certifications:
Operating Temperature Range: –40 °C to +80 °C
ATEX Classification: II 2GD c T95 °C / T.F.: ATX09AT
IECEx Compliance: IEC 61508
Safety Integrity Level: SIL 3
CE Marked
Valve:
Pressure Max 1500 psig
Max Temperature 100F

- Construction Details:
Body Material: Anodized aluminum
Wetted Part: PTFE
Fasteners: Stainless steel
Sealing Materials: Industrial-grade elastomeric seals
Manufactured by: AIR TORQUE S.p.A., Italy

Typical Applications
Automated ball and butterfly valve actuation
Gas, air, and utility systems
Chemical and petrochemical processing
Skid-mounted and packaged equipment
Shutdown and control valves in SIL-rated safety systems
Hazardous-area valve automation