Vertical multistage centrifugal pump
CDM20-2
CDM / CDMF · 60 Hz · also listed as CDMF20-2
CDM20-2 is a vertical multistage centrifugal pump from the CNP CDM / CDMF range (60 Hz). Rated 4 kW, 13–35 m³/h, head 22–40 m. Net weight 65 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 60 Hz, 3500 rpm, clean water. Source: Performance table printed p. 21; dimensions p. 41.
| Flow (m³/h) | Head (m) |
|---|---|
| 0 | 40 |
| 13 | 38 |
| 15 | 37.5 |
| 17 | 37 |
| 20 | 35.5 |
| 23 | 34 |
| 26 | 32 |
| 29 | 29 |
| 32 | 25.5 |
| 34 | 23 |
| 35 | 21.5 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| H1 | pump height | 317 mm |
| H2 | motor height | 348 mm |
| H | overall height, flange | 755 mm |
| D1 | motor diameter | 215 mm |
| D2 | base / flange width | 151 mm |
| weight_cdmf_kg | Net weight CDMF | 58 mm |
| — | Net weight | 65 kg |