Vertical multistage centrifugal pump
CDM3-7
CDM / CDMF · 50 Hz · also listed as CDMF3-7
CDM3-7 is a vertical multistage centrifugal pump from the CNP CDM / CDMF range (50 Hz). Rated 0.75 kW, 1.2–4.4 m³/h, head 23–53 m. Net weight 30 kg.
- CDM for non-corrosive, CDMF for lightly corrosive liquids
- Boosting, pressurising, HVAC and water treatment
- Hot-water type available (up to +120 °C)
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. 13; dimensions p. 37.
| Flow (m³/h) | Head (m) |
|---|---|
| 0 | 52.5 |
| 1.2 | 51 |
| 1.6 | 50 |
| 2 | 49 |
| 2.4 | 46 |
| 2.8 | 43 |
| 3 | 41 |
| 3.2 | 39.5 |
| 3.6 | 35 |
| 4 | 30 |
| 4.4 | 23 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| H1 | pump height | 297 mm |
| H2 | motor height | 250 mm |
| H | overall height, flange | 622 mm |
| H_oth | overall height, other connections | 597 mm |
| D1 | motor diameter | 148 mm |
| D2 | base / flange width | 108 mm |
| weight_cdmf_kg | Net weight CDMF | 26 mm |
| — | Net weight | 30 kg |