Product Description Model: RT series Pneumatic Actuator (1)Construction 1.Indicator Position indicator with NAMUR is convenient for mounting accessories such as limit switch box, positioner and so on. 2.Pinion The pinion is high-precision and integrative, made from nickel alloy steel, full conform to the latest standards of ISO5211,DIN3337,NAMUR.The dimensions can be customized and the stainless steel is available. 3. Actuator body According to the different requirements, the extruded aluminum alloy ASTM6005 body can be treated with hard anodized, powder polyester painted (different colors is available such as blue, orange, yellow etc.) or PTFE or nickel plated. 4.End caps Die-casting aluminum powder polyester painted in different colors, PTFE or nickel plated. 5.Pistons The twin rack pistons are made from die-casting aluminum treated with hard anodized or made from cast steel with galvanization .Symmetric mounting position, long cycle life and fast operation, reversing rotation by simply inverting the pistons. 6.Travel adjustment The two independent external travel stop adjustment bolts can adjust 5˚ at both open and close directions easily and precisely. 7.High performance springs Preloaded coating springs are made from the high quality material for resistant to corrosion and longer cycle life, which can be demounted safely and conveniently to satisfy different requirements of torque by changing quantity of springs. 8.Bearings & guides Made from low friction, long-life compound material, to avoid the direct contact between metals. The maintenance and replacement are easy and convenient. 9. O-rings NBR rubber o-rings provide trouble-free operation at standard temperature ranges. For high and low temperature, viton or silicone is used. (2)Parts and Material (3)Specifications 1. CE and ISO certificate 2. Strictly quality control 3. Good quality at a favorable price 4. Excellent After-service 5. Fast delivery time Material Extruded Aluminum alloy Rotary Angle 0~90 degree ±5° 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 (4)Our factory