AT350 Aluminum Pneumatic Valve Actuator - 2-8 Bar Working Pressure, 90° Rotation for Ball and Butterfly Valves

The AT350 Aluminum Pneumatic Valve Actuator is a spring return single action air cylinder designed for industrial valve automation applications. Constructed from extruded aluminum alloy with hard anodized surface treatment, this rack and pinion rotary actuator delivers reliable performance across various temperature conditions.

• Material: Extruded Aluminum Alloy
• Rotary Angle: 0-90 degrees
• Working Pressure: 2-8 bar (0.3-0.8 MPa)
• Structure: Rack and Pinion Rotary Actuator
• Surface Treatment: Hard Anodizing
• Connection Standards: NAMUR, ISO5211, DIN3337

• Normal Temperature: -20°C to +80°C (-4°F to +176°F)
• High Temperature: -15°C to +150°C (+5°F to +302°F)
• Low Temperature: -40°C to +80°C (-104°F to +176°F)

• Compact design with low cost and long working life
• Available in single acting (spring return) or double acting models
• External stroke adjustment bolts for precise ±5° adjustment
• Multi-function indicator with NAMUR for easy accessory mounting
• Pre-compressed load spring for safe installation and removal
• Low friction, high cycle life operation with minimal noise
• Multiple O-ring materials available for different temperature requirements
• Easy solenoid valve mounting without connecting planks

Ideal for ball valves, butterfly valves, and rotary machinery across multiple industries including electric power, petrochemical, metallurgy, oil and gas, construction, chemical processing, mining, power generation, food processing, and scientific research. Suitable for flammable, corrosive, dusty, strong magnetic field, radiation, and vibration environments both indoor and outdoor.

• Limit switch boxes
• Solenoid valves
• Positioners

Standard colors include grey, black, sky blue, dark blue, red, and orange. OEM colors and branding available upon request.