Vertical multistage centrifugal pump
LDMF5-20
LDMF (hot water) · 50 Hz
LDMF5-20 is a vertical multistage centrifugal pump from the CNP LDMF (hot water) range (50 Hz). Rated 3 kW, 2.5–8.5 m³/h, head 70–147 m. Net weight 51 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 | 147 |
| 3 | 144 |
| 4 | 137 |
| 5 | 128.5 |
| 6 | 115.5 |
| 7 | 99 |
| 8 | 79.5 |
| 8.5 | 70 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| H1 | pump height | 717 mm |
| H2 | motor height | 345 mm |
| H | overall height, flange | 1137 mm |
| H_oth | overall height, other connections | 1112 mm |
| D1 | motor diameter | 197 mm |
| D2 | base / flange width | 132 mm |
| — | Net weight | 51 kg |