Flygt N-Technology Pumps



  • Proven self-cleaning non-clog impellers
  • Sustained high efficiency in both clean water and wastewater
  • Hardened cast iron, duplex stainless steel and Hard-Iron impeller options
  • Advanced sealing technologies to protect the motor against leakage
  • Reliable in submersible and dry installations

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Flygt’s self-cleaning non-clog N-pumps deliver high sustained efficiency and reliable operation in a broad range of tough wastewater applications, including unscreened sewage, wastewater and sludge up to 8 percent solids concentration.

Flygt N-pumps can handle capacities up to 1,760 l/s (26,600 gpm) with motors from 1.3 to 680 kW (1.5 to 870 hp) and pumping heads up to 100 m (350 ft).

Choose a hardened cast iron impeller for typical wastewater applications or the chopper version for your toughest applications with long fibers and heavy solids. Hard-Iron impellers are highly recommended for applications with sand, grit and other abrasives, as well as wastewater mixed with sea water. For special applications such as highly corrosive wastewater environments we offer impellers in duplex stainless steel.​​​

Expert advice in pump selection and optimization

Flygt has nearly 100 years of experience in wastewater pumping and has installed more than 1 million wastewater pumps globally. With our proven technology, expertise in wastewater pumping applications, and responsive service network, Flygt N-technology pumps provide more than a product.

Our application engineers support customers in optimizing pump and sewer system performance, based on the unique operational requirements and environment. The result is overall system efficiency, reduced energy consumption and lower maintenance costs.

Whether it is a new pump station design, troubleshooting a problematic station, or adapting to new operational requirements, our capabilities include:

  • System analysis and calculations
  • Sump design
  • Water hammer calculations
  • Pump start analysis
  • Transient analysis
  • Computational fluid dynamics (CFD)
  • Scale model testing

Responsive service network

Flygt customers have access to responsive, reliable support when it's needed. Our global service network includes approximately 4,000 technicians, trained to ensure the highest standard of service. Quick response reduces downtime and impact on customer operations, and all regular maintenance parts are always in stock, for rapid delivery within 24 to 48 hours.

Case Studies & White Papers

More energy-efficient pump station


Challenge Four high-efficiency 100 kW Flygt N-pumps operating with variable frequency drives (VFDs) deliver a total volume of 0.8 m3/s (12,700 US gpm) and consume 1,000,000 kWh of energy per year....

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Strategic transfer pump station


Challenge At one of the largest wastewater treatment plants in the Midlands, a strategic pump station was at risk of complete failure and required fast and efficient replacement within the shortest...

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Efficient handling of wastewater at a harbor


To prevent pollution by sewage from ships, governments are required to ensure the provision of adequate sewage reception facilities. One of the ports within the Ports of Stockholm were outfitted with...

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Bringing pumping efficiency beyond par


England’s Northumbrian Water Ltd (NWL) serves roughly 2.5 million people with water and sewerage services. To better assess its predicted results they conducted a project to measure how much the...

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Don’t get hot and bothered get N-pumps


Frequent blockages and the challenges associated with high temperature geothermal environments put extreme demands on this pumping station. A lot of different solutions had been suggested before the...

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Flygt SmartRun keeps control of the costs


Built in 2006, the Sigtuna pump station has two Flygt N 3153 HT pumps, originally started via soft starters. In 2011, Xylem installed Flygt SmartRun pump controller on each pump in the Sigtuna...

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