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
125mm WQ/QW submersible sewage pumps at 130m³/h, GAK-125 coupling, for town-scale municipal sump stations and new-development lift stations.
| Flow Rate | 130m³/h |
|---|---|
| Head | 15-20m |
| Power | 11-15kW |
| Inlet / Outlet Diameter | DN125 |
| Material | Cast Iron,SS304,SS316L |
Both models here move the same 130 m³/h; the choice comes down to how much lift your site needs.
| Model | Flow (m³/h) | Head (m) | Power (kW) |
| WQ-125-130-15 | 130 | 15 | 11 |
| QW-125-130-20 | 130 | 20 | 15 |
At this size, auto-coupling installation isn’t really a discussion point — the civil-work savings against a dry pump-house are large enough that almost every project defaults to GAK-125 rails from the start. One detail that gets missed at order time: guide-rail length is priced against your actual pit depth, not a standard catalogue length, so confirm that dimension before placing the order. For the 15kW QW variant specifically, on emerging-market tender sites, a quick check on local supply-voltage stability makes sense too, since the running current is substantial enough to expose weak grid connections.
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.