Grundfos

NK 250-450/381

Code: 98317147 EAN: 5711492935125
Type NK
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Technical specifications

Pump typeNK
Nominal flow (m³/h)783.8 m³/h
Nominal head (m)46.46 m
Minimum efficiency index (MEI)0.68
Power P2 (kW)132 kW
Phases3
Voltage (V)380-420D/660-725Y V
Frequency (Hz)50 Hz
Enclosure classIP55
Frequency converterNone
Max. liquid temp. (°C)120 °C
Min. liquid temp. (°C)0 °C
Max. ambient temp. (°C)55 °C
Max. operating pressure10 bar
Connection pressure ratingPN 10
Pump housing materialCast iron
Impeller materialCast iron
Shaft sealBAQE
Gross weight2030 kg
Net weight1930 kg
Motor number92910052
EAN code5711492935125

Performance curve

Performance curve NK 250-450/381

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 98317147 (equivalent flow and head), available in the catalogue.

Grundfos 98317147