Swagelok  SC00015-3U Pneumatic Actuator 

Description:
This is a Swagelok AT Series pneumatic quarter-turn actuator with spring return (fail-safe) functionality. It is designed to automate quarter-turn valves such as ball or butterfly valves. The actuator converts compressed air into rotary motion, with an internal spring mechanism that automatically returns the valve to a predefined safe position in the event of air supply failure.
The unit complies with EN ISO 5211 mounting standards, making it compatible with a wide range of industrial valves. It is built for reliable operation in harsh industrial environments and hazardous areas.

Key Features:
- Fail-Safe Spring Return Operation
Automatically returns the valve to a predefined safe position (open or closed) if air supply is lost. This protects equipment, processes, and personnel during power or air failures.
- Reliable Pneumatic Quarter-Turn Actuation
Uses compressed air to generate smooth, controlled 90° rotary motion for ball and butterfly valves, ensuring consistent valve positioning and repeatable performance.
- High Torque in a Compact Body
Delivers up to 6 Nm of torque in a compact aluminum housing, making it ideal for tight installations without sacrificing actuation strength.
- Fast and Efficient Response
Pneumatic operation allows quick valve actuation compared to manual or electric alternatives, improving process speed and automation reliability.
- Standard ISO 5211 Mounting
Direct-mount design simplifies installation, eliminates couplings or brackets, and ensures compatibility with a wide range of quarter-turn valves.
- Designed for Harsh and Hazardous Environments
Certified for ATEX explosive atmospheres and rated for –40°C to +80°C, making it suitable for demanding industrial and outdoor applications.
- Low Maintenance, Long Service Life
Simple mechanical design with robust internal components reduces wear, downtime, and maintenance costs over time.
- Clear Visual Position Indication
Integrated top position indicator allows quick visual confirmation of valve status, improving safety and ease of operation.
- Industrial-Grade Safety and Reliability
SIL 3 (IEC 61508) compliance makes it suitable for critical safety functions such as emergency shutdown systems.
- Cost-Effective Automation Upgrade
Provides a durable, fail-safe automation solution without the complexity and higher cost of electric actuators, delivering excellent value over its lifecycle.

Specifications:
- Brand: Swagelok
- Series: AT Series
- Type: Pneumatic Part-Turn Actuator
- Operation: Spring Return (Spring Close / Spring Open)
- Rotation Angle: 90° (Quarter Turn)
- Output Torque:
- Minimum: 4 Nm
- Maximum: 6 NmOperating Pressure:
- Max: 8 bar
- Air Connection: G 1/8"
- Mounting Standard: EN ISO 5211
- Ambient Temperature Range: -40°C to +80°C
- ATEX Classification: II 2GD c T95°C / T.F. ATX09 AT
- Safety Integrity Level: IEC 61508 – SIL 3
- Manufacturer: Air Torque S.p.A. (Italy)
 

Typical Applications:
Automated ball and butterfly valves
Oil & gas systems
Chemical and petrochemical plants
Process control and instrumentation
Water and wastewater treatment
Pharmaceutical and food processing equipment
Hazardous and explosive environments (ATEX zones)
Emergency shutdown (ESD) systems requiring fail-safe action

Swagelok MS-A15-3-DIN Valve:
- Model / Part Number: SS-43GS4-A15C3-12639|
- Serial Number: 0002706727
- Material: 316 Stainless Steel
- Pressure Ratings:
3000 PSIG @ 100°F (206 bar @ 37°C)
2500 PSIG @ 300°F (172 bar @ 148°C)
- Connections: Threaded inlet/outlet (visible)
- Type: High-pressure needle valve, suitable for precision flow control
- Key Value: High-pressure, corrosion-resistant valve rated for up to 3000 PSIG, reliable for automated or manual operation in industrial systems.