HQHaquanPump & Valve
80mm Submersible Sewage Pumps with GAK-80 Coupling — Submersible Sewage Pumps
Submersible Sewage Pumps

80mm Submersible Sewage Pumps with GAK-80 Coupling

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.

Specifications
Flow Rate40-65m³/h
Head7-25m
Power2.2-7.5kW
Inlet / Outlet DiameterDN80
MaterialCast Iron,SS304,SS316L

Product Overview

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.

ModelFlow (m³/h)Head (m)Power (kW)Profile
QW-80-40-74072.2Low-head, tank overflow duty
WQ-80-43-1343133Continuous-run factory
WQ-80-40-1540154Medium head
WQ-80-60-1360135.5Higher flow
WQ-80-65-2565257.5High-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.

Typical Applications

  • medium-large sump station
  • continuous-run factory sump-pit
  • food-processing complex waste pit
  • industrial park waste-water chamber

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