Submersible Sewage Pumps100mm Submersible Sewage Pumps with GAK-100 Coupling
100mm WQ/QW submersible sewage pumps, 80-100m³/h, GAK-100 coupling. Standard and grinder options for municipal and food-plant duty.

Model: WQ/QW
Compact 0.55-2.2kW submersible sewage pumps for tight basins, workshops and site dewatering. Mobile installation, no coupling base needed.
| Flow Rate | 7-15m³/h |
|---|---|
| Head | 8-30m |
| Power | 0.55-2.2kW |
| Inlet / Outlet Diameter | 25-40mm |
| Material | Cast Iron,SS304,SS316L |
At this end of the range, buyers usually aren’t choosing based on flow charts — they’re choosing based on whether the pump physically fits their pit, and whether they need height or volume more. None of these six models take an auto-coupling base; they’re mobile units you lower on a chain and pull back out the same way, which suits the shallow, easily accessible basins typical of homes, small workshops and job sites.
| Model | Flow (m³/h) | Head (m) | Power (kW) | Notes |
| WQ-25-7-8 | 7 | 8 | 0.55 | Smallest frame, fits narrow ~300mm basins |
| QW-25-8-22 | 8 | 22 | 1.1 | High-head option for multi-floor lift |
| WQ-32-8-12 | 8 | 12 | 0.75 | Small commercial/retail sump |
| QW-32-12-15 | 12 | 15 | 1.1 | Workshop wash-down water |
| WQ-40-15-15 | 15 | 15 | 1.5 | Light-industry, balanced flow/head |
| QW-40-15-30 | 15 | 30 | 2.2 | Reaches 4-story vertical lift |
Two practical points apply across the whole group. First, none of these are built for abrasive grit or metal filings — soft fibrous waste and small solids only. Second, on the higher-head models (22m, 30m), remember that hose length and pipe elbows subtract from the rated head; a long horizontal run will cost you more of that number than most people plan for.
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 Pumps80mm WQ/QW submersible sewage pumps, 40-65m³/h across five flow-head combinations, with GAK-80 auto-coupling for factory sump stations.
Submersible Sewage Pumps65mm WQ/QW submersible sewage pumps, 25-37m³/h, with GAK-65 auto-coupling. Standard and grinder versions for food-plant wastewater.