In-line single-stage circulation pump
TD250-22/4
TD (in-line circulation) · 50 Hz
TD250-22/4 is an in-line single-stage circulation pump from the CNP TD (in-line circulation) range (50 Hz). Rated 45 kW, 150–600 m³/h, head 20–26 m. Net weight 647 kg.
- Eleven sizes, DN32 to DN300, flow up to about 900 m³/h
- Head up to about 100 m, 2-pole and 4-pole motors
- Liquid from -15 to +110 °C, working pressure 12 bar (16 bar special)
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, 1480 rpm, clean water. Source: Performance table, PDF p. 24.
| Flow (m³/h) | Head (m) |
|---|---|
| 150 | 25.7 |
| 200 | 25.3 |
| 250 | 25.1 |
| 300 | 24.7 |
| 350 | 24.3 |
| 400 | 23.8 |
| 450 | 23.1 |
| 500 | 22 |
| 550 | 21 |
| 600 | 19.7 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| D | D | 450 mm |
| B1 | B1 | 445 mm |
| B2 | B2 | 334 mm |
| B3 | B3 | 316 mm |
| B4 | B4 | 243 mm |
| B5 | B5 | 390 mm |
| H1 | H1 | 300 mm |
| H2 | H2 | 495 mm |
| H3 | H3 | 1492 mm |
| L1 | L1 | 1100 mm |
| L2 | L2 | 550 mm |
| — | Net weight | 647 kg |