SW Series Valve Gearboxes
SW series gearboxes, also known as quarter-turn gearboxes, are mostly used for butterfly valves. The gear mechanism in this type of gearboxes is worm. Quarter-turn gearboxes are produced in two models with flange and foot mounting. In the foot mounting mode, the user is enabled to install the gearbox on multiple valve sizes by changing the gearbox foot (given torque tolerance), and in the flange mode, the gearbox can only be used based on the size of the valve.
Technical Specifications
Number of sizes (types): 8 Size
hey are suitable for manual operation.
| Maximum Output Torque | Maximum Force Capacity | Maximum Diameter of Output Shaft | Adaptor | Ratio | Model |
| 330 K.N | 53 K.N | Ø 50 | – | 26:1 | SW300 |
| 850 K.N | 55 K.N | Ø 60 | – | 37:1 | SW800 |
| 1250 K.N | 88 K.N | Ø 63 | – | 43:1 | SW1200 |
| 1650 K.N | 110 K.N | Ø 65 | – | 52:1 | SW1500 |
| 2600 K.N | 86 K.N | Ø 70 | 2:1 | 64:1 | SW2500 |
| 5600 K.N | 85 K.N | Ø 80 | 3:1 | 63:1 | SW4000 |
| 6800 K.N | 102 K.N | Ø 95 | 3:1 | 63:1 | SW6000 |
| 10500 K.N | 134 K.N | Ø 120 | 3:1 | 60:1 | SW10000 |