Model: WQ/QW
200mm WQ/QW submersible sewage pumps, 250-400m³/h across nine variants, GAK-200 coupling, for municipal and industrial-park lift stations.
| Flow Rate | 250-400m³/h |
|---|---|
| Head | 7-30m |
| Power | 11-45kW |
| Inlet / Outlet Diameter | DN200 |
| Material | Cast Iron,SS304，SS316L |
Nine variants at 200mm reflect how differently “municipal sump station” can be specified depending on flow demand, available head, and whether it’s a continuous-run or intermittent site.
| Model | Flow (m³/h) | Head (m) | Power (kW) |
| WQ-200-300-7 | 300 | 7 | 11 |
| QW-200-250-11 | 250 | 11 | 15 |
| WQ-200-250-15 | 250 | 15 | 18.5 |
| WQ-200-400-10 | 400 | 10 | 22 |
| WQ-200-300-15 | 300 | 15 | 22 |
| QW-200-400-13 | 400 | 13 | 30 |
| WQ-200-250-22 | 250 | 22 | 30 |
| WQ-200-350-25 | 350 | 25 | 37 |
| WQ-200-400-30 | 400 | 30 | 45 |
The low-head, high-flow models (300-400 m³/h at 7-10m) are the ones most likely to run outside their intended range if the system was designed optimistically. Confirm actual motor current after commissioning rather than assuming the nameplate figure holds. At the top of the table, the 45kW unit isn’t meant for abrasive slurry; standard cast-iron construction wears fast under heavy mineral particulate, and that conversation needs to happen before ordering, not after.
Submersible Sewage Pumps300mm WQ submersible sewage pumps, 480-1100m³/h across eight variants, GAK-300 coupling, for large municipal and metropolitan sump stations.
Submersible Sewage Pumps250mm WQ submersible sewage pumps, all rated 600m³/h across five head/power combinations, for large municipal and industrial sump stations.
Submersible Sewage Pumps150mm WQ/QW submersible sewage pumps, 145-180m³/h, GAK-150 coupling. Municipal-grade lift stations, plus a heavy fibrous-waste grinder version.
