Technical specifications
| Pump type | NK |
| Nominal flow (m³/h) | 491.8 m³/h |
| Nominal head (m) | 21.5 m |
| Minimum efficiency index (MEI) | 0.45 |
| Frequency (Hz) | 50 Hz |
| Frequency converter | None |
| Max. liquid temp. (°C) | 120 °C |
| Min. liquid temp. (°C) | -25 °C |
| Max. operating pressure | 10 bar |
| Connection pressure rating | PN 10 |
| Pump housing material | Cast iron |
| Impeller material | Cast iron |
| Shaft seal | BQQE |
| Gross weight | 710 kg |
| Net weight | 633 kg |
| EAN code | 5712604744222 |
Performance curve
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 98987553 (equivalent flow and head), available in the catalogue.
Related products
Grundfos 98987553