Grundfos

NK 250-400/381

Code: 98252335 EAN: 5711492113509
Type NK Bare shaft
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Technical specifications

Pump typeNK
Nominal flow (m³/h)536.2 m³/h
Nominal head (m)18.1 m
Minimum efficiency index (MEI)0.46
Frequency (Hz)50 Hz
Frequency converterNone
Max. liquid temp. (°C)120 °C
Min. liquid temp. (°C)0 °C
Max. operating pressure10 bar
Connection pressure ratingPN 10
Pump housing materialCast iron
Impeller materialCast iron
Shaft sealBAQE
Gross weight576 kg
Net weight499 kg
EAN code5711492113509

Performance curve

Performance curve NK 250-400/381

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 98252335 (equivalent flow and head), available in the catalogue.

Grundfos 98252335