Vertical multistage centrifugal pump
CDL42-20
CDL / CDLF · 50 Hz · also listed as CDLF42-20
CDL42-20 is a vertical multistage centrifugal pump from the CNP CDL / CDLF range (50 Hz). Rated 7.5 kW, 25–55 m³/h, head 31–48 m. Net weight 111 kg.
- Wide size range from 1 m³/h to 200 m³/h rated flow
- Hot-water type available (up to +120 °C)
- Standard IP55 / insulation class F two-pole motor
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 pp. 33–34.
| Flow (m³/h) | Head (m) |
|---|---|
| 25 | 48 |
| 30 | 46 |
| 35 | 44 |
| 40 | 42 |
| 42 | 41 |
| 45 | 39 |
| 50 | 35 |
| 55 | 31 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| B1 | lower section height: base to motor flange | 641 mm |
| B2 | upper section height: motor | 390 mm |
| B1+B2 | overall height | 1031 mm |
| D1 | motor diameter | 260 mm |
| D2 | base / flange width | 208 mm |
| — | Net weight | 111 kg |