The Flowserve Limitorque HBC series worm gearboxes are engineered for quarter-turn applications such as butterfly, ball, and plug valves, as well as quarter-turn and multi-turn dampers.
| Input Torque Required for Max Output Torque | 526 Nm (388 ft-lb) |
| Industries | <ul><li><strong>General Industries:</strong> Steel & Primary Metals, Food & Beverage</li><li><strong>Chemicals:</strong> Basic (Organic & Inorganic)</li><li><strong>Water:</strong> Wastewater, Agriculture & Irrigation</li><li><strong>Oil & Gas:</strong> Downstream Processing</li><li><strong>Power:</strong> Conventional Steam, Geothermal, Combined Cycle, Concentrated Solar Power (CSP)</li></ul> |
| Enclosure Rating | Weatherproof, submersible, and buried service options available |
| Input Type | Manual input or motorized |
| Standard Materials | <ul><li><strong>Housing:</strong> Cast-Iron</li><li><strong>Shaft:</strong> Alloy Steel</li><li><strong>Worm Gear:</strong> Bronze</li></ul> |
| Design Temperature | -29°C to 66°C |
| Sizes | HBC-0 to HBC-7 |
| Type | Worm Gearbox (Quarter-turn butterfly, ball, and plug valves, multi-turn dampers, guillotine dampers, radial gates) |
| Mounting Options | Suitable for manual or motorized operation with Limitorque electric actuators (MX, SMB, L120) |
| Max Input Torque | 831 Nm (613 ft-lb) |
| Output Shaft Type | Removable splined adapters for output drive sleeve (HBC-0 to HBC-6), Bore and keyway for HBC-7 and HBC-7M |
| Gear Ratio | 65 to 1,325 |
| Max Output Torque | 126,204 Nm (93,000 ft-lb) |
| Configurations | <ul><li><strong>Weatherproof:</strong> Protected against the ingress of water and dust</li><li><strong>Submersible:</strong> Suitable for temporary submersion to IP67 and IP68</li><li><strong>Buried Service:</strong> Suitable for in-ground installation</li><li><strong>Nuclear:</strong> Suitable for inside containment, safety related service</li></ul> |
