Grundfos

NK 250-450/357

Code: 98317238 EAN: 5711492936054
Type NK
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Technical specifications

Pump typeNK
Nominal flow (m³/h)463.7 m³/h
Nominal head (m)17.53 m
Minimum efficiency index (MEI)0.68
Power P2 (kW)30 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 weight1190 kg
Net weight1090 kg
Motor number98957465
EAN code5711492936054

Performance curve

Performance curve NK 250-450/357

Documents and datasheets

Variants & alternative codes

Equivalent alternatives

Pumps in the same hydraulic class as 98317238 (equivalent flow and head), available in the catalogue.

Grundfos 98317238