Horizontal multistage stainless steel centrifugal pump
CHM20-20
CHM · 50 Hz
CHM20-20 is a horizontal multistage stainless steel centrifugal pump from the CNP CHM range (50 Hz). Rated 2.2 kW, 10–29 m³/h, head 15–26 m. Net weight 22 kg.
- Rated flow 1–20 m³/h, up to 9.6 bar pump pressure
- Liquid -15 to +70 °C; hot-water type up to +105 °C
- Threaded G1 to G2 connections, stainless flow passage
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 | 25.5 |
| 12 | 25 |
| 14 | 24.5 |
| 16 | 24 |
| 18 | 23.7 |
| 20 | 23 |
| 22 | 22 |
| 24 | 20.5 |
| 26 | 18 |
| 28 | 16 |
| 29 | 14.5 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| L | overall length, three-phase | 420 mm |
| L_1ph | overall length, single-phase | 432 mm |
| L1 | L1, three-phase | 203 mm |
| L1_1ph | L1, single-phase | 200 mm |
| L2 | L2 | 93 mm |
| L3 | foot spacing | 200 mm |
| L4 | L4 | 140 mm |
| h | shaft axis height | 100 mm |
| H | height | 218 mm |
| G | overall height, three-phase | 220 mm |
| G_1ph | overall height, single-phase | 256 mm |
| D | motor width, three-phase | 171 mm |
| D_1ph | motor width, single-phase | 175 mm |
| M | M | 160 mm |
| P | P | 200 mm |
| d | bolt hole | 10 mm |
| K_1ph | single-phase only | 91 mm |
| — | Net weight | 22 kg |