Pneumatic single acting actuator for on-off and control of ball valves, butterfly valves or where 90° rotation is required.
| Torque | 1 - 6600 Nm |
|---|---|
| Drive | Pneumatic spring |
| Suitable for article | AT3502, AT3507, AT3533S, AT3534S, AT3582, AT3585, AT3590, AT2282, AT 2310-2319 |
| Article number | Amount |
|---|---|
| AT 3841-3 | |
| AT 3841-5 | |
| AT 3841-7 | |
| AT 3841-8 | |
| AT 3841-9 | |
| AT 3841-10 | |
| AT 3841-12 | |
| AT 3841-14 | |
| AT 3841-15 | |
| AT 3841-16 |
UEC.22 Actuator for valve, pneumatic, two position with feather return.
Actuator AT3841 pneumatic, single acting for on-off and control of ball valves and butterfly valves or where 90° rotation is required.
Solenoid valve connection and actuator top acc. to VDE/VDI 3845 (NAMUR), adapter is required.
Mounting flange and stem square drilled acc. to ISO 5211 and DIN 3337, adapter is required.
CE-marking
The actuators meet the demands from the machine directive, MD 2006/42/EC and ATEX 94/9/EC.
All Kinetrol pneumatic actuators are classified for use in potentially explosive atmospheres as Group II Category 2, suitable for zones 1, 2, 21 and 22 in accordance with Annex VIII of Directive 94/9/CE (ATEX).
| Detail | Quantity | Material | Surface treatment | |
|---|---|---|---|---|
| 1 | Body | 1 | Actuator 0-7 ZL16-BSEN1774:1998, bigger aluminum LM24 | Epoxy anodized C4 according to EN-ISO 12944-2 |
| 2 | Wing | 1 | Stainless steel | |
| 3 | Springs | 1 | Spring steel, Ur type | Pre-stressed |
Actuator 3841- | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 5 | 7 | 8 | 9 | 10 | 12 | 14 | 15 | 16 | 18 | 20 | |||||||||||||
| ∅D | 107 | 118 | 152 | 174 | 200 | 206 | 258 | 258 | 400 | 525 | 524 | 524 | ||||||||||||
| E | 102 | 117 | 182 | 197 | 218 | 285 | 293 | 337 | 503 | 486 | 672 | 1132 | ||||||||||||
| Weight | 2,08 | 2,63 | 7,26 | 7,23 | 10,3 | 14,5 | 27,95 | 71,25 | 105 | 123 | 240 | 479 | ||||||||||||
| Measurements in mm, weight in kg | ||||||||||||||||||||||||
The actuator only has one movable part which entails an outstanding operational dependability. The stroke length is adjusted simply with the help of stop screws on the side of the actuator. All actuators are function and tightness tested from a factory which guarantess 4 million operations. The actuators are modular and can be provided with limit switch box, positions, valve positioners and solenoid valve.
Mounting holes according to ISO 5211 and DIN 3337, for standardized mounting against the valve.
Headboards with adjustable screws for stroke length (5-10°).
Actuators AT 3841 single acting:
The actuator is delivered as a standard with a spring closing function. If a spring opening function is requested instead, it has to be specified while ordering.
| Pressure: | Supply pressure max 8 bar (e). Higher pressure on request. |
| Temperature: | -20°C to +80°C. Other ranges on request. |
| Manoeuvre medium: | Air or inert gases, purity at least 40 micron. |
| (No requirements of mist lubrication). Oil or water. |
| Actuator | Air Pressure (bar) | |||||||
|---|---|---|---|---|---|---|---|---|
| Standard spring set | 3,5 | 4,5 | 5,5 | Spring return | ||||
| Start | Stop | Start | Stop | Start | Stop | Same as for air | Stop | |
| AT 3831-1 | 1,5 | 0,9 | 1,9 | 1,5 | 2,3 | 1,8 | ||
AT 3831-2 | 3,0 | 1,4 | 3,8 | 2,4 | 4,7 | 3,7 | ||
| AT 3831-3 | 6,3 | 4,1 | 8,1 | 6,4 | 10,3 | 8,7 | ||
| AT 3831-5 | 13,0 | 8,5 | 16,4 | 13,0 | 20,9 | 17,5 | ||
| AT 3831-7 | 30,5 | 19,8 | 40,7 | 30,5 | 50,8 | 42,4 | ||
| AT 3831-8 | 52,7 | 36,8 | 67,2 | 51,4 | 81,3 | 65,5 | ||
| AT 3831-9 | 61,0 | 50,3 | 81,9 | 71,2 | 104,0 | 93,8 | ||
| AT 3831-10 | 107 | 78 | 136 | 114 | 164 | 143 | ||
| AT 3831-12 | 145 | 111 | 191 | 158 | 238 | 204 | ||
| AT 3831-14 | 374 | 249 | 479 | 367 | 588 | 478 | ||
| AT 3831-15 | - | - | 835 | 595 | 1002 | 787 | ||
| AT 3831-16 | 864 | 576 | 1097 | 832 | 1321 | 1081 | ||
| AT 3831-18 | 1875 | 1250 | 2426 | 1840 | 2954 | 2417 | ||
| AT 3831-20 | - | - | 4514 | 3423 | 5456 | 4464 | ||
| AT 3831-30 | - | - | 6771 | 5134 | 8184 | 6696 |
| Actuator size | Operating time/Consumption by 5,5 bar | ||||
|---|---|---|---|---|---|
| 3840- | Time in seconds | Air consumption | |||
| 0 | - | 0,021 | |||
| 1 | - | 0,141 | |||
| 2 | - | 0,276 | |||
| 3 | 0,12 | 0,550 | |||
| 5 | 0,19 | 0,995 | |||
| 7 | 0,32 | 2,69 | |||
| 8 | 0,48 | 4,16 | |||
| 9 | 0,66 | 5,71 | |||
| 10 | 0,89 | 9,15 | |||
| 12 | 1,3 | 12,4 | |||
| 14 | 3,0 | 27,9 | |||
| 15 | 5,4 | 52,1 | |||
| 16 | - | 72,0 | |||
| 18 | - | 337,9 | |||
| 20 | 337,9 | ||||
| 30 | 506,8 | ||||
To calculate the exact time the valve's torque is required, contact Armatec. | |||||
| Actuator size | 5 | 7 | 8 | 9 | 10 | 12 | 14 | 15 | 16 | 18 | 20 | |
| Ball valve | ||||||||||||
| AT 3502 | DN | 10-25 | 32-50 | 65 | 80 | 100 | 125-150 | 200 | ||||
| AT 3507 | DN | 8-20 | 32-40 | 50 | 65 | 80-100 | 200 | |||||
| AT 3582, 3585 | DN | 15-20 | 25-40 | 50-65 | 80 | 100 | 125-150 | |||||
| AT 3582HT, 3585HT | DN | 15 | 20-40 | 50 | 65 | 80 | 100-125 | 150 | ||||
| Butterfly | ||||||||||||
| AT 2282 | DN | 80-100 | 125 | 150-250 | 300 | 350 | 400 | 500 | ||||
| AT 2310-2344 | DN | 50-65 | 80-100 | 125 | 150 | 200 | 250-300 | 350-400 | 450-500 | 600-700 | ||
Accessories
The actuator should be disconnected electrically and pneumatically before assembly or dissassembly is started. The actuator should be mounted with even spaced distances.
Spare parts
The repair kit includes the neccessary soft parts.
Article number, series number, max allowed operation pressure.
Manufacturer, year of production.
CE-marking, Ex marking including class.
| Example: AT 3841-5 | ||
| AT 3841 | 5 | |
| Fig. nr | Size |
