Vertical multistage centrifugal pump
LDMF5-23
LDMF (hot water) · 50 Hz
LDMF5-23 is a vertical multistage centrifugal pump from the CNP LDMF (hot water) range (50 Hz). Rated 4 kW, 2.5–8.5 m³/h, head 81–169 m. Net weight 60 kg.
- Low NPSH requirement for hot water
- Up to +120 °C (hot-water type)
- PN25 flange (DN25 / DN32 / DN40)
Performance curve Curve-based
Efficiency, shaft power and NPSHr are not published for this model in the source catalogue.
Head versus flow at 50 Hz, 2900 rpm, clean water. Source: Performance table printed p. 10; dimensions p. 5.
| Flow (m³/h) | Head (m) |
|---|---|
| 2.5 | 169 |
| 3 | 165 |
| 4 | 157 |
| 5 | 146.5 |
| 6 | 133.5 |
| 7 | 114 |
| 8 | 92.5 |
| 8.5 | 81 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| H1 | pump height | 798 mm |
| H2 | motor height | 348 mm |
| H | overall height, flange | 1221 mm |
| H_oth | overall height, other connections | 1196 mm |
| D1 | motor diameter | 215 mm |
| D2 | base / flange width | 151 mm |
| — | Net weight | 60 kg |