Wuxi Pneumatic Valve Co., Ltd
Wuxi Pneumatic Valve Co., Ltd
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Pneumatic Actuator Rack And Pinion AT Series double acting spring return
Pneumatic actuator
Rack and Pinion actuators are intended for the automation and operation of quarter-turn valves like butterfly valve,ball valve and plug valves. The dual, opposed rack pistons have low friction bearings and guides that provide high-performance, long cycle-life, and fast response. These pistons can be inverted to reverse the rotation for fail open applications.
| 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 |
Double acting pneumatic actuators
CCW
Air to Port A forces the pistons outwards, causing the pinion to turn counterclockwise while the air is being exhausted from Port B.
Air to Port B forces the pistons inwards, causing the pinion to turn clockwise while the air is being exhausted from Port A.
CW
Air to Port A forces the pistons outwards, causing the pinion to turn clockwise while the air is being exhausted from Port B.
Air to Port B forces the pistons inwards, causing the pinion to turn counterclockwise while the air is being exhausted from Port A.
Spring return pneumatic actuators
CCW
Air to port A forces the pistons outwards, causing the springs to compress, The pinion turns counterclockwise while air is being exhausted from port B.
Loss of air pressure on port A, the stored energy in the springs forces the pistons inwards. The pinion turns clockwise while air is being exhausted from port A.
CW
Air to port B forces the pistons outwards, causing the springs to compress, The pinion turns counterclockwise while air is being exhausted from port B.
Loss of air pressure on port A, the stored energy in the springs forces the pistons inwards. The pinion turns clockwise while air is being exhausted from port A.
| 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" | ||
| AT040 | 122 | 60 | 65 | 20 | 80×30 | 14 | 11 | Æ50 | Æ36 | M6×10 | M5×7.5 | NAMUR G1/4" |
| AT052 | 147 | 72 | 72 | 20 | 80×30 | 14 | 11 | Æ50 | Æ36 | M6×10 | M5×7.5 | NAMUR G1/4" |
| AT063 | 172 | 88 | 83 | 20 | 80×30 | 18 | 14 | Æ70 | Æ50 | M8×13 | M6×10 | NAMUR G1/4" |
| AT075 | 184 | 100 | 95 | 20 | 80×30 | 20 | 14 | Æ70 | Æ50 | M8×13 | M6×10 | NAMUR G1/4" |
| AT083 | 204 | 109 | 103 | 20 | 80×30 | 21 | 17 | Æ70 | Æ50 | M8×13 | M6×10 | NAMUR G1/4" |
| AT092 | 262 | 117 | 109 | 20 | 80×30 | 22 | 17 | Æ70 | Æ50 | M8×13 | M6×10 | NAMUR G1/4" |
| AT105 | 268 | 133 | 121 | 20 | 80×30 | 26 | 22 | Æ102 | Æ70 | M10×16 | M8×13 | NAMUR G1/4" |
| AT125 | 301 | 155 | 143 | 20 | 80×30 | 27 | 22 | Æ102 | Æ70 | M10×16 | M8×13 | NAMUR G1/4" |
| AT140 | 394 | 173 | 152 | 20 | 80×30 | 32 | 27 | Æ125 | Æ102 | M12×20 | M10×16 | NAMUR G1/4" |
| AT160 | 458 | 198 | 174 | 20 | 80×30 | 34 | 27 | Æ125 | Æ102 | M12×20 | M10×16 | NAMUR G1/4" |
| AT190 | 528 | 232 | 206 | 30 | 130×30 | 40 | 36 | Æ140 | M16×24 | NAMUR G1/4" | ||
| AT210 | 532 | 257 | 226 | 30 | 130×30 | 40 | 36 | Æ140 | M16×24 | NAMUR G1/4" | ||
| AT240 | 660 | 291 | 260 | 30 | 130×30 | 50 | 46 | Æ165 | M20×25 | NAMUR G1/4" | ||
| AT270 | 740 | 330 | 294 | 30 | 130×30 | 50 | 46 | Æ165 | M20×25 | NAMUR G1/2" | ||
| AT300 | 798 | 354 | 336 | 30 | 130×30 | 60 | 46 | Æ165 | M20×25 | NAMUR G1/2" | ||
| AT350 | 880 | 408 | 385 | 30 | 130×30 | 60 | 46 | Æ165 | M20×25 | NAMUR G1/2" | ||
| AT400 | 950 | 464 | 516 | 30 | 130×30 | 60 | 55 | Æ254 | Æ165 | 8-M16×25 | M20×25 | NAMUR G1/2" |
Product Application
AT series Rack & Pinion Pneumatic Actuator is made of dual pistons driven by racks and pinions. There are two models. One is Dual Acting model, and the other is Spring Return model, which can suit various flammable, corrosive, dusty, strong magnetic field, radiation, vibration corrosive environment indoor or outdoor.
Auto-control in the field of electric power, petrochemical, metallurgy, petroleum, gas, town, construction, drainage, chemical industry, oil refining, mining, power plant, metallurgy, architecture, medicine, food, gas, scientific research, etc.
