Horizontal multistage stainless steel centrifugal pump
CM20-4
CM · 50 Hz
CM20-4 is a horizontal multistage stainless steel centrifugal pump from the CNP CM range (50 Hz). Rated 4 kW, 10–29 m³/h, head 32–53 m. Net weight 37 kg.
- Stainless steel 304 or 316L flow passages
- Up to 10 bar working pressure
- Axial inlet, radial outlet, threaded ports
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. 12.
| Flow (m³/h) | Head (m) |
|---|---|
| 10 | 52.5 |
| 12 | 51 |
| 14 | 50 |
| 16 | 49 |
| 18 | 48.5 |
| 20 | 47 |
| 22 | 45 |
| 24 | 41.5 |
| 26 | 37 |
| 28 | 33 |
| 29 | 31.5 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| L | overall length, three-phase | 607 mm |
| L1 | L1, three-phase | 346 mm |
| L2 | L2, three-phase | 180 mm |
| L3 | L3 | 228 mm |
| L4 | L4 | 140 mm |
| h | inlet axis height | 112 mm |
| H | height | 220 mm |
| E | height incl. terminal box, three-phase | 262 mm |
| D | motor width, three-phase | 214 mm |
| M | M, three-phase | 190 mm |
| A | A, three-phase | 230 mm |
| — | Net weight | 37 kg |