The Grundfos NK / NKE range comprises long-coupled, single-stage end-suction centrifugal pumps built to EN 733 for large flows and continuous duty. The 50 Hz range covers flows from 2 to 2,000 m³/h and heads up to 150 m, driven by IEC standard motors from 0.37 to 315 kW; NKE versions add an integrated frequency converter for energy-optimised speed control. The back pull-out design allows full service without disturbing the pump housing or pipework. Applications include district heating and cooling, municipal and industrial water supply, pressure boosting, industrial liquid transfer, and field, sprinkler and drip irrigation.

Flow Rate :

2 – 2,000 m³/h (50 Hz)

Head :

Up to 150 m

Motor Power :

0.37 – 315 kW; NKE with integrated frequency converter 0.75 – 22 kW

Power Supply :

3 x 380-415 V, 50 Hz (2-, 4- and 6-pole IEC motors)

Max Fluid Temperature :

-25 °C to +140 °C

Max Operating Pressure :

16 bar (PN 10 / PN 16 flanges to EN 1092-2)

Material :

Cast iron (EN-GJL-250) housing; cast iron or bronze impeller; stainless steel shaft

Warranty :

2 years