Kailing AT series pneumatic actuators are compact rack-and-pinion actuators for 90-degree rotary valves. Use this page to confirm actuator action, air pressure, torque, mounting standards, accessories and exact valve package requirements before RFQ.
AT - 50 - D - B - AT: pneumatic actuator
- 32
- 50
- 63
- 75
- 88
- 100
- 125
- Other bore sizes: consult Kailing
- D: double acting
- S: single acting spring return
- Blank: orange standard
- B: blue
- H: black
Use with rotary valve packages
The AT series is intended for 90-degree rotary valves such as ball valves, butterfly valves and gate valves. Confirm the valve torque and service conditions before actuator sizing.
Mounting and accessory compatibility
Top and side NAMUR interfaces support limit switches, positioners and solenoid valves, while ISO5211 and DIN3337 bottom mounting support direct valve connection.
Material and seal options
The catalog lists extruded aluminium alloy cylinders, die-cast aluminium pistons and end caps, NBR O-rings with FKM or silicone rubber options, and high alloy spring steel springs with epoxy coating.
RFQ confirmation points
Confirm actuator action, valve type, valve torque, safety factor, air supply pressure, temperature range, mounting flange, accessory requirements, quantity and color or coating preference.
| Parameter | Value |
|---|---|
| Maximum working pressure | 10bar |
| Double acting pressure range | 3bar-8bar |
| Single acting pressure range | 5bar-8bar |
| Standard temperature | -20C to +80C |
| Optional temperature | -35C to +80C or -20C to +150C |
| Rotation angle | 90 degrees +/-5% |
| Life | 1,000,000 cycles |
| Top accessory mounting | VDI/VDE3845 NAMUR for limit switches and positioners |
| Side solenoid mounting | VDI/VDE3845 NAMUR for solenoid valves |
| Valve mounting | ISO5211 and DIN3337 bottom connection |
| Travel adjustment | Two independent adjustment mechanisms for +/-5 degree open/close position adjustment |
Double acting output torque reference
| Model | Unlabeled catalog column | 3bar | 3.5bar | 4bar | 4.5bar | 5bar | 5.5bar | 6bar | 7bar | 8bar |
|---|---|---|---|---|---|---|---|---|---|---|
| AT-32 | 3.6 | 4.3 | 5 | 5.7 | 6.4 | 7.3 | 8 | 8.7 | 10 | 11.6 |
| AT-50 | 8.4 | 10.1 | 11.7 | 13.5 | 15.1 | 16.7 | 18.4 | 20 | 23.4 | 26.7 |
| AT-63 | 14.8 | 17.7 | 20.6 | 23.6 | 26.5 | 29.4 | 32.3 | 35.3 | 41.1 | 47 |
| AT-75 | 29.2 | 35 | 40.8 | 46.6 | 52.5 | 58.3 | 64.1 | 69.9 | 81.5 | 93.2 |
| AT-88 | 45.9 | 55 | 64.2 | 73.3 | 82.5 | 91.6 | 101.1 | 110.1 | 128.1 | 146.1 |
| AT-100 | 66.8 | 80.1 | 93.4 | 106.3 | 120.3 | 133.3 | 146.3 | 160.3 | 186.3 | 213.3 |
| AT-125 | 139 | 167 | 195 | 223 | 250 | 278 | 303 | 333 | 389 | 444 |
| AT-145 | 217 | 261 | 304 | 348 | 391 | 434 | 478 | 521 | 608 | 695 |
| AT-160 | 285 | 341 | 398 | 455 | 512 | 577 | 625 | 682 | 795 | 909 |
| AT-190 | 533 | 639 | 746 | 852 | 976 | 1065 | 1171 | 1277 | 1490 | 1703 |
| AT-240 | 893 | 1072 | 1250 | 1430 | 1608 | 1787 | 1965 | 2144 | 2502 | 2859 |
| AT-270 | 1306 | 1565 | 1824 | 2084 | 2343 | 2603 | 2862 | 3121 | 3640 | 4159 |
Torque values are catalog references. The first numeric column is printed under a blank header in the rendered PDF; confirm pressure labels and actuator sizing against the original catalog, valve torque, safety factor, medium and service conditions.
AT exterior dimension reference - non-dimensional catalog fields
| Model | ISO 5211 flange | M/N min |
|---|---|---|
| AT32 | F03 | 11/9 |
| AT50 | F03/F05 | 14/11 |
| AT63 | F03/F05 | 17/14 |
| AT75 | F05/F07 | 20/17 |
| AT100 | F07/F10 | 25/22 |
| AT125 | F07/F10 | 30/27 |
| AT160 | F10/F12 | 30/27 |
| AT190 | F14 | 40/36 |
| AT240 | F16 | 55/46 |
| AT270 | F16 | 50/46 |
| AT300 | F16 | 50/46 |
This table keeps buyer-facing mounting and envelope dimensions only. Use the catalog drawing for full A/B/C/D/E/F/G/H/I/J/K/O/P/S/T/U/V/W/X values.
AT exterior dimension reference
| Model | ISO 5211 flange | R | A | B | C | D | E | F | K | Q | M/N min |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AT32 | F03 | M5 | 118 | 51 | 22.5 | 28.5 | 65 | 45 | 1/8 in | Phi36 | 11/9 |
| AT50 | F03/F05 | M5/M6 | 146 | 70 | 30 | 40 | 96 | 69 | 1/8 in | Phi36/Phi50 | 14/11 |
| AT63 | F03/F05 | M5/M6 | 167 | 82 | 35 | 47 | 113 | 85 | 1/4 in | Phi36/Phi50 | 17/14 |
| AT75 | F05/F07 | M6/M8 | 213 | 93 | 42.5 | 50.5 | 130 | 102 | 1/4 in | Phi50/Phi70 | 20/17 |
| AT100 | F07/F10 | M8/M10 | 268 | 120 | 55 | 65 | 157 | 125 | 1/4 in | Phi70/Phi102 | 25/22 |
| AT125 | F07/F10 | M8/M10 | 349 | 147 | 67 | 80 | 189 | 159 | 1/4 in | Phi70/Phi102 | 30/27 |
| AT160 | F10/F12 | M10/M12 | 450 | 193 | 89 | 104 | 226 | 197 | 1/4 in | Phi102/Phi125 | 30/27 |
| AT190 | F14 | M16 | 525 | 206 | 103 | 103 | 260 | 230 | 1/4 in | Phi140 | 40/36 |
| AT240 | F16 | M20 | 602 | 260 | 130 | 130 | 319 | 289 | 1/4 in | Phi165 | 55/46 |
| AT270 | F16 | M20 | 730 | 294 | 147 | 147 | 372 | 332 | 1/2 in | Phi165 | 50/46 |
| AT300 | F16 | M20 | 880 | 333 | 161 | 172 | 394 | 354 | 1/2 in | Phi165 | 50/46 |
This table keeps buyer-facing mounting and envelope dimensions only. Use the catalog drawing for full A/B/C/D/E/F/G/H/I/J/K/O/P/S/T/U/V/W/X values.
Frequently Asked Questions
- FAQ What is the difference between AT-D and AT-S?
AT-D is double acting. AT-S is single acting spring return. Select based on the required fail position and air supply conditions. - FAQ Can AT actuators mount solenoid valves directly?
Yes. The catalog states the side connection follows VDI/VDE3845 NAMUR and can mount solenoid valves without an adapter plate. - FAQ Is the torque table enough to select an actuator?
No. The torque table is a reference. Kailing should confirm valve torque, safety factor, medium, pressure and temperature before final sizing.
Need a quotation?
Send the model, medium, pressure, port size, body material and quantity for review.