Grundfos

NK 80-250/257

Code: 98313065 EAN: 5711492861738
Type NK
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Technical specifications

Pump typeNK
Nominal flow (m³/h)232.8 m³/h
Nominal head (m)84.26 m
Minimum efficiency index (MEI)0.70
Power P2 (kW)75 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 pressure16 bar
Connection pressure ratingPN 16
Pump housing materialCast iron
Impeller materialCast iron
Shaft sealBAQE
Gross weight1090 kg
Net weight1000 kg
Motor number92910027
EAN code5711492861738

Performance curve

Performance curve NK 80-250/257

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 98313065 (equivalent flow and head), available in the catalogue.

Grundfos 98313065