Grundfos

NK 250-420/404

Code: 93564159 EAN: 5715474525595
Type NK
Request quote

Technical specifications

Pump typeNK
Nominal flow (m³/h)1058 m³/h
Nominal head (m)45.51 m
Minimum efficiency index (MEI)0.70
Power P2 (kW)160 kW
Phases3
Voltage (V)380-400/660-690 V
Frequency (Hz)50 Hz
Enclosure classIP55 (Protect. water jets/dust)
Frequency converterNone
Max. liquid temp. (°C)120 °C
Min. liquid temp. (°C)-25 °C
Max. ambient temp. (°C)40 °C
Max. operating pressure10 bar
Connection pressure ratingPN 10
Pump housing materialDuctile iron
Impeller materialStainless steel
Shaft sealBQQE
Gross weight2060 kg
Net weight1940 kg
Motor number92740305
EAN code5715474525595

Performance curve

Performance curve NK 250-420/404

Hover over the curve to read flow and head at any point.

Documents and datasheets

Variants & alternative codes

Equivalent alternatives

Pumps in the same hydraulic class as 93564159 (equivalent flow and head), available in the catalogue.

Grundfos 93564159