Product Description
Model: RT Series Pneumatic Actuator
(1) Construction
1. Indicator
The position indicator with NAMUR is designed for easy installation of accessories such as limit switch boxes, positioners, and more. This feature ensures accurate positioning and enhances system reliability.
2. Pinion
The pinion is a high-precision, integrated component made from nickel alloy steel. It fully complies with the latest standards of ISO 5211, DIN 3337, and NAMUR. Custom dimensions are available, and stainless steel options are also offered to meet specific application needs.
3. Actuator Body
The extruded aluminum alloy ASTM 6005 body can be finished with hard anodizing, powder polyester painting (available in various colors like blue, orange, yellow, etc.), or PTFE/nickel plating depending on the application requirements.
4. End Caps
Die-cast aluminum end caps are available in different colors and can be coated with powder polyester paint, PTFE, or nickel plating for enhanced durability and aesthetics.
5. Pistons
The twin rack pistons are made from die-cast aluminum with hard anodizing or cast steel with galvanization. They offer symmetric mounting, long cycle life, and fast operation. Reversing rotation is achieved simply by flipping the pistons.
6. Travel Adjustment
Two independent external travel stop adjustment bolts allow precise 5° adjustments in both open and close directions, ensuring accurate control over the actuator's movement.
7. High Performance Springs
Preloaded coating springs are manufactured from high-quality materials that resist corrosion and extend service life. These springs can be safely removed and replaced to adjust torque according to specific requirements.
8. Bearings & Guides
Low-friction, long-life compound materials are used for bearings and guides to prevent metal-to-metal contact. This design simplifies maintenance and replacement, ensuring smooth and reliable operation.
9. O-rings
NBR rubber O-rings provide trouble-free operation within standard temperature ranges. For extreme temperatures, Viton or silicone O-rings are used to maintain performance under harsh conditions.


(3) Specifications
- CE and ISO Certificates
- Strict Quality Control
- High Quality at Competitive Prices
- Excellent After-Sales Service
- Fast Delivery Time
Material | Extruded Aluminum Alloy |
Rotary Angle | 0~90 degree ±5° |
Structure | Rack and Pinion Rotary Actuator |
Working Pressure | 2~8 bar |
Surface Treatment | Hard Anodizing |
Working Temperature | Normal: -20°C (-4°F) ~ 80°C (+176°F) High: -15°C (+5°F) ~ 150°C (+302°F) Low: -40°C (-104°F) ~ 80°C (+176°F) |
Connection | NAMUR, ISO5211, and DIN3337 |
Application | Ball Valve, Butterfly Valve, and Rotating Machines |
Cup Color | Grey, Black, Sky Blue, Dark Blue, Red, Orange |


(5) Contact Us
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