Grundfos

NK 125-280/256

Code: 92775979 EAN: 5715119439171
Type NK
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Technical specifications

Pump typeNK
Nominal flow (m³/h)236.7 m³/h
Nominal head (m)17.93 m
Minimum efficiency index (MEI)0.70
Power P2 (kW)15 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 materialCast iron
Impeller materialStainless steel
Shaft sealBQQE
Gross weight386 kg
Net weight339 kg
Motor number92740304
EAN code5715119439171

Performance curve

Performance curve NK 125-280/256

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 92775979 (equivalent flow and head), available in the catalogue.

Grundfos 92775979