Grundfos

NK 250-380/403

Code: 92776081 EAN: 5715119441044
Type NK
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Technical specifications

Pump typeNK
Nominal flow (m³/h)566.1 m³/h
Nominal head (m)19.5 m
Minimum efficiency index (MEI)0.70
Power P2 (kW)37 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 materialDuctile iron
Impeller materialStainless steel
Shaft sealBQQE
Gross weight1200 kg
Net weight1060 kg
Motor number92748756
EAN code5715119441044

Performance curve

Performance curve NK 250-380/403

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 92776081 (equivalent flow and head), available in the catalogue.

Grundfos 92776081