GLEW053K-GLEW150K
GLEW053K-GLEW150K Electric-ready Quarter-turn Worm Gearbox Series
GLEW053K-GLEW150K is organized as one product page group from source sheet GLEW-18, with actual model variants preserved separately.
GLEW053K-GLEW150K Electric-ready Quarter-turn Worm Gearbox Series
GLEW053K-GLEW150K series high torque electric-ready gearboxes enable quarter turn valve automation. With ISO 5211 actuator interface, these worm gear operators suit large butterfly valves and other quarter turn valves. Designed for electric actuator compatibility and valve position holding.
GLEW053K-GLEW150K series gearboxes transmit high torque via worm gear transmission. Designed for quarter turn operation, they provide actuator interface with ISO 5211 flange for direct mounting. Compatible with large butterfly valves, ball valves, plug valves, and dampers. The self-locking worm gear operator supports valve position holding and electric actuator integration.
Performance Parameters
Units: torque N·m · thrust kN · linear dimensions mm
| Model | Out. Tq. | In. Tq. | Ratio | Eff. |
|---|---|---|---|---|
| GLEW053K | 53000 | 2000 | 76:1 | 26.6 |
| GLEW065K | 65000 | 2300 | 80:1 | 28 |
| GLEW075K | 75000 | 3000 | 72:1 | 25.2 |
| GLEW090K | 90000 | 3400 | 76:1 | 26.6 |
| GLEW120K | 120000 | 5000 | 70:1 | 24.5 |
| GLEW150K | 150000 | 6200 | 70:1 | 24.5 |
Connection Dimensions
Unit: mm
| Model | Flange No. | D | D0 | PCD Thread | Boss D | Pin Qty | f | Max. Stem Dia. d | H2 |
|---|---|---|---|---|---|---|---|---|---|
| GLEW053K | F35/F40/F48 | 560/560/560 | 356/406/483 | 8×M30-45/8×M36-54/12×M36-54 | 260/300/370 | 4-Φ30/4-Φ40/4-Φ40 | 5/8/8 | 180 | 225 |
| GLEW065K | F35/F40/F48 | 560/560/560 | 356/406/483 | 8×M30-45/8×M36-54/12×M36-54 | 260/300/370 | 4-Φ30/4-Φ40/4-Φ40 | 5/8/8 | 180 | 235 |
| GLEW075K | F35/F40/F48 | 560/560/560 | 356/406/483 | 8×M30-45/8×M36-54/12×M36-54 | 260/300/370 | 4-Φ30/4-Φ40/4-Φ40 | 5/8/8 | 185 | 248 |
| GLEW090K | F35/F40/F48 | 560/560/560 | 356/406/483 | 8×M30-45/8×M36-54/12×M36-54 | 260/300/370 | 4-Φ30/4-Φ40/4-Φ40 | 5/8/8 | 190 | 258 |
| GLEW120K | F40/F48/F60 | 686/686/686 | 406/483/603 | 8×M36-54/12×M36-54/20×M36-54 | 300/370/470 | 4-Φ40/4-Φ40/4-Φ40 | 8/8/8 | 200 | 280 |
| GLEW150K | F40/F48/F60 | 686/686/686 | 406/483/603 | 8×M36-54/12×M36-54/20×M36-54 | 300/370/470 | 4-Φ40/4-Φ40/4-Φ40 | 8/8/8 | 200 | 285 |
Overall Dimensions
Unit: mm · Weight: kg
| Model | A | B | C | L | L1 | H | H1 |
|---|---|---|---|---|---|---|---|
| GLEW053K | 560 | 560 | 275 | 468 | 280 | 295 | 130 |
| GLEW065K | 560 | 560 | 275 | 474 | 280 | 295 | 130 |
| GLEW075K | 590 | 590 | 321 | 561.5 | 280 | 330 | 140 |
| GLEW090K | 630 | 630 | 321 | 576.5 | 280 | 330 | 140 |
| GLEW120K | 686 | 686 | 340 | 606.5 | 343 | 340 | 150 |
| GLEW150K | 686 | 898 | 340 | 683 | 665 | 365 | 150 |
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 | End Cap | 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 | Actuator mounting bracket | 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 torque range of the GLEW053K-GLEW150K gearbox?
The gearbox supports torque from 53,000 Nm to 150,000 Nm.
Does the gearbox have an ISO 5211 actuator mounting interface?
It includes an ISO 5211 actuator interface flange for direct actuator mounting.
Is there a self-locking function in the worm gearbox?
Yes, it includes a self-locking worm gear function for valve position holding.
Which valve types are compatible with this quarter turn gearbox?
Compatible with quarter turn valves including butterfly, ball, plug valves, and dampers.
How are gear ratios determined for actuator compatibility?
Gear ratios are selected to match electric actuator input torque requirements.
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.