ALEW160K-ALEW350K
ALEW160K-ALEW350K Valve Gearbox Series
ALEW160K-ALEW350K is organized as one product page group from source sheet ALEW-37, with actual model variants preserved separately.
ALEW160K-ALEW350K Valve Gearbox Series
ALEW160K-ALEW350K is a manual worm gearbox for quarter-turn operation of large valves. It delivers high torque for heavy duty valve operation. The gearbox features an ISO 5211 valve gearbox interface and supports manual valve gearbox for large valves applications.
The ALEW160K-ALEW350K series is a manual worm gearbox designed for quarter-turn operation of large industrial valves. It transmits high torque through a worm gear transmission system, providing torque outputs from 160000 to 350000 Nm. The gearbox features an ISO 5211 valve gearbox interface for direct actuator mounting and compatibility with butterfly valves, ball valves, plug valves, and dampers. The self-locking worm gear ensures valve position holding without back-driving.
Performance Parameters
Units: torque N·m · thrust kN · linear dimensions mm
| Model | Out. Tq. | In. Tq. | Ratio | Eff. |
|---|---|---|---|---|
| ALEW160K | 160000 | 6500 | 78:1 | 24.5 |
| ALEW180K | 180000 | 8000 | 60:1 | 21 |
| ALEW230K | 230000 | 10000 | 70:1 | 24.5 |
| ALEW270K | 270000 | 11000 | 70:1 | 24.5 |
| ALEW350K | 350000 | 13500 | 75:1 | 26.25 |
Connection Dimensions
Unit: mm
| Model | Flange No. | D | D0 | PCD Thread | Boss D | Pin Qty | f | Max. Stem Dia. d | H2 |
|---|---|---|---|---|---|---|---|---|---|
| ALEW160K | F48/F60 | 686/686 | 483/603 | 12×M36-54/20×M36-54 | 370/470 | 4-Φ40/4-Φ40 | 8/8 | 215 | 288 |
| ALEW180K | F48/F60 | 686/686 | 483/603 | 12×M36-54/20×M36-54 | 370/470 | 4-Φ40/4-Φ40 | 8/8 | 220 | 315 |
| ALEW230K | F48/F60 | 686/686 | 483/603 | 12×M36-54/20×M36-54 | 370/470 | 4-Φ40/4-Φ40 | 8/8 | 230 | 335 |
| ALEW270K | F48/F60 | 686/686 | 483/603 | 12×M36-54/20×M36-54 | 370/470 | 4-Φ40/4-Φ40 | 8/8 | 240 | 372 |
| ALEW350K | F48/F60 | 686/686 | 483/603 | 12×M36-54/20×M36-54 | 370/470 | 4-Φ40/4-Φ40 | 8/8 | 310 | 395 |
Overall Dimensions
Unit: mm · Weight: kg
| Model | A | B | C | L1 | H | H1 |
|---|---|---|---|---|---|---|
| ALEW160K | 730 | 927.0 | 372 | 814 | 340 | 150 |
| ALEW180K | 730 | 953.0 | 373 | 860 | 377 | 162 |
| ALEW230K | 810 | 1083.0 | 423 | 930 | 417 | 162 |
| ALEW270K | 960 | 1230.0 | 495 | 1075 | 447 | 192 |
| ALEW350K | 1040 | 1300.0 | 525 | 1155 | 447 | 192 |
Dimensional Drawing
Product Structure View
Engineering Material List
| No. | Part Name | Material | UK Standard | USA Standard |
|---|---|---|---|---|
| 1 | Worm Gearcase | Ductile Iron | BS 2789 450/10 | ASTM A536 65-45-12 |
| 2 | Alloy Bushing | SF-1 | SF-1 | SF-1 |
| 3 | Thrust Bearing | Steel | BS 535A99 | AISI/SAE 52100 |
| 4 | Actuator mounting bracket | Ductile Iron | BS 2789 450/10 | ASTM A536 65-45-12 |
| 5 | Turbine | Ductile Iron | BS 2789 600/3 | ASTM A536 80-55-06 |
| 6 | Cover | Ductile Iron | BS 2789 450/10 | ASTM A536 65-45-12 |
| 7 | Position Indicator Gasket | Nitrile rubber | Nitrile rubber | Nitrile rubber |
| 8 | Position Indicator | Steel | BS 080A25 | AISI/SAE 1025 |
| 9 | End Cap | Ductile Iron | BS 2789 450/10 | ASTM A536 65-45-12 |
| 10 | Worm Shaft | Steel | BS 080A47 | AISI/SAE 1045 |
| 11 | Worm | Steel | BS 970 530M40 | AISI/SAE 5140 |
Compatibility & Actuator Interface
Structured gearbox data for engineering selection and project documentation.
TFC provides engineered gearbox solutions for demanding valve applications, with technical support for model selection, torque matching, project documentation and OEM requirements.
Frequently Asked Questions
What is the output torque range of the ALEW160K-ALEW350K gearbox?
The torque range is 160000 to 350000 Nm for the ALEW160K-ALEW350K series.
Does the ALEW160K-ALEW350K gearbox support ISO 5211 mounting?
It uses an ISO 5211 flange interface for direct mounting to quarter-turn valves.
Is the ALEW160K-ALEW350K worm gearbox self-locking?
Yes, the worm gear design includes a self-locking function to hold valve position.
Which valve types are compatible with this manual valve gearbox?
It is compatible with large diameter butterfly valves, ball valves, plug valves, and dampers.
What type of operation does the ALEW160K-ALEW350K gearbox provide?
The gearbox is manually operated with a worm gear transmission for quarter-turn valves.
Need engineering assistance?
Send us your valve type, required torque, stem dimensions, flange standard and working conditions. Our engineering team will recommend a suitable gearbox model.