Grundfos KPL KWM Axial and mixed flow pumps


Axial and mixed flow pumps for high volume water handling


The range of KPL submersible axial flow propeller pumps and KWM submersible mixed flow pumps represents strength and durability and is ideal for flood control and other heavy-duty pumping applications. These pumps include innovative features such as the Turbulence Optimiserâ„¢ (Patent Pending) that increases efficiency by up to two percentage points.

The market-leading high-efficient and compact design, makes it possible to reduce the physical size of the pumping station, and hereby cost for civil construction work. Built from cast iron or stainless steel, a wide range of variants using different materials, sensors, surface coatings and shaft seal materials are available, ensuring excellent reliability in demanding applications.

The range of KPL and KWM pumps offer:

  • Best-in-class hydraulic efficiency up to 86%
  • Market-leading compact and lightweight design
  • Backswept self-cleaning hydraulic design that provides great non-clogging performance

Turbulence Optimiser TM (Patent Pending) is an innovative solution for reducing turbulence in the gap between the pump volute and the column pipe. A further positive effect is that misalignment and production tolerances of the column no longer affect efficiency.


These axial and mixed flow pumps are designed for high flow – up to 9000 l/s – and head up to 23m as standard. Higher flow and head is available on request. Built to handle large quantities of water, the pumps are ideal for a wide range of applications such as:

  • flood and storm water control
  • large volume drainage and irrigation
  • raw water intake
  • transfer of liquids in large-scale municipal sewage treatment plants
  • circulation of large quantities of water
  • water level control in coastal and low-lying areas
  • filling and emptying of dry docks and harbour installations
  • filling or emptying of reservoirs

KPL submersible axial flow propeller pumps and KWM submersible mixed flow pumps range from 11kW to 700kW, and are available in 11 column sizes with 4-, 6-, 8-, 10- 12-, 14-, or 16-pole motor (16-pole for KPL only).


Flood Pumping Stations

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