Submersible Sewage Pumps125mm Submersible Sewage Pumps with GAK-125 Coupling
125mm WQ/QW submersible sewage pumps at 130m³/h, GAK-125 coupling, for town-scale municipal sump stations and new-development lift stations.

Model: WQ/QW
80mm WQ/QW submersible sewage pumps, 40-65m³/h across five flow-head combinations, with GAK-80 auto-coupling for factory sump stations.
| Flow Rate | 40-65m³/h |
|---|---|
| Head | 7-25m |
| Power | 2.2-7.5kW |
| Inlet / Outlet Diameter | DN80 |
| Material | Cast Iron,SS304,SS316L |
Five variants at this size cover a fairly wide spread of flow-to-head ratios, which makes 80mm a common size for buyers comparing options against a specific pipe run rather than picking off a single spec sheet entry.
| Model | Flow (m³/h) | Head (m) | Power (kW) | Profile |
| QW-80-40-7 | 40 | 7 | 2.2 | Low-head, tank overflow duty |
| WQ-80-43-13 | 43 | 13 | 3 | Continuous-run factory |
| WQ-80-40-15 | 40 | 15 | 4 | Medium head |
| WQ-80-60-13 | 60 | 13 | 5.5 | Higher flow |
| WQ-80-65-25 | 65 | 25 | 7.5 | High-flow, high-head |
The low-head QW-80-40-7 needs one specific caution the others don’t: don’t let it idle continuously far below its rated head, since current draw climbs fast without enough pipeline resistance to work against. At the top of the range, the 7.5kW model draws enough current that cable cross-section deserves an actual calculation instead of a rule of thumb, particularly over longer runs to the control cabinet.
Submersible Sewage Pumps125mm WQ/QW submersible sewage pumps at 130m³/h, GAK-125 coupling, for town-scale municipal sump stations and new-development lift stations.
Submersible Sewage Pumps100mm WQ/QW submersible sewage pumps, 80-100m³/h, GAK-100 coupling. Standard and grinder options for municipal and food-plant duty.
Submersible Sewage Pumps65mm WQ/QW submersible sewage pumps, 25-37m³/h, with GAK-65 auto-coupling. Standard and grinder versions for food-plant wastewater.