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25-40mm Compact Submersible Sewage Pumps for Small Sites — Submersible Sewage Pumps
Submersible Sewage Pumps

25-40mm Compact Submersible Sewage Pumps for Small Sites

Model: WQ/QW

Compact 0.55-2.2kW submersible sewage pumps for tight basins, workshops and site dewatering. Mobile installation, no coupling base needed.

Specifications
Flow Rate7-15m³/h
Head8-30m
Power0.55-2.2kW
Inlet / Outlet Diameter25-40mm
MaterialCast Iron,SS304,SS316L

Product Overview

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.

ModelFlow (m³/h)Head (m)Power (kW)Notes
WQ-25-7-8780.55Smallest frame, fits narrow ~300mm basins
QW-25-8-228221.1High-head option for multi-floor lift
WQ-32-8-128120.75Small commercial/retail sump
QW-32-12-1512151.1Workshop wash-down water
WQ-40-15-1515151.5Light-industry, balanced flow/head
QW-40-15-3015302.2Reaches 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.

Typical Applications

  • residential basement drainage
  • small workshop sump pit
  • construction site dewatering
  • light commercial wastewater transfer

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