OEM Spring Return Pneumatic Actuator NAMUR ISO5211 DIN3337 Standards For Valves
Product Specifications
Pneumatic actuators are highly powerful, reliable, and compact units with fast or slow 90° rotation. They are manufactured in both single-acting and double-acting versions. In addition to the standard manufacturing process, actuators can also be produced with ± 5% stroke adjustment, 180° rotation, and three closing positions (closed, open, half-open). Suitable for use with ball valves, butterfly valves, threads, and dampers.
| Attribute | Value |
| Product Name | OEM Spring Return Pneumatic Actuator NAMUR ISO5211 DIN3337 Standards For Valves |
| Body Material | Aluminum Alloy |
| Power | Pneumatic |
| Size | 32 to 400 |
| Type | Double Action / Single Action |
| Structure | Rack and Pinion |
| Mounting | ISO5211, DIN3337, Namur Standards |
| Valve Compatibility | Ball Valve, Butterfly Valve |
Detailed Description
Material: Extruded Aluminum alloy
Rotary Angle: 0~90 degree
Structure: rack and pinion rotary actuator
Working Pressure: 2~8bar
Surface Treatment: hard anodizing
Working Temperature: - Normal Temperature: -20ºC(-4°F) ~ 80ºC (+176°F)
- High Temperature: -15ºC(+5°F) ~ 150ºC (+302°F)
- Low Temperature: -40ºC(-104°F) ~ 80ºC (+176°F)
Connection: NAMUR, ISO5211 and DIN3337
Application: ball valve, butterfly valve, and rotary machine
Cup Color: grey, black, sky blue, dark blue, red, orange
Key Features
- Pneumatic rotary actuator designed for ball valves and butterfly valves
- Low cost, compact design with long working life
- Available in single acting (spring return) or double acting configurations
- Multiple color options: orange, blue, black, dark gray (OEM colors available)
- Working pressure: 0.3~0.8MPa
- Bottom connection: ISO 5211
- Solenoid valve standard: Namur
- Compatible accessories: limit switch box, solenoid valve, positioner
- Full conformance to ISO5211, DIN3337, VDINDE-3854, and NAMUR specifications
- Extruded high intensity aluminum body with hard anodized coating
- High quality bearings for low friction and silent operation
- External stroke adjustment bolts for precise ±5° adjustment
- Pre-compressed load spring for safe mounting and tear down
Technical Dimensions
| Model | A | B | C | D | H × I | G | N | J | K | L | M | Air connection |
| ATO32 | 110 | 45 | 45 | 20 | 50 × 25 | 12 | 9 | Æ36 | | M5 × 7.5 | | G1/8" |
Applications
AT series Pneumatic Actuators are designed for use in various environments including flammable, corrosive, dusty, strong magnetic field, radiation, and vibration conditions, both indoor and outdoor.
Ideal for auto-control applications in:
- Electric power
- Petrochemical
- Metallurgy
- Oil and gas
- Water treatment
- Chemical processing
- Mining
- Power generation
- Pharmaceutical
- Food processing
Contact Information
