Vertical multistage centrifugal pump
LDMF3-4
LDMF (hot water) · 50 Hz
LDMF3-4 is a vertical multistage centrifugal pump from the CNP LDMF (hot water) range (50 Hz). Rated 0.55 kW, 1.2–4.4 m³/h, head 16–29 m. Net weight 22 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. 8; dimensions p. 4.
| Flow (m³/h) | Head (m) |
|---|---|
| 1.2 | 29 |
| 1.6 | 28.5 |
| 2 | 27.5 |
| 2.4 | 26.5 |
| 2.8 | 25 |
| 3 | 24 |
| 3.2 | 23 |
| 3.6 | 21.5 |
| 4 | 19 |
| 4.4 | 16 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| H1 | pump height | 227 mm |
| H2 | motor height | 220 mm |
| H | overall height, flange | 522 mm |
| H_oth | overall height, other connections | 497 mm |
| D1 | motor diameter | 140 mm |
| D2 | base / flange width | 103 mm |
| — | Net weight | 22 kg |