Swimming-pool circulation pump
NSZ550
NSZ (pool, horizontal) · 50 Hz
NSZ550 is a swimming-pool circulation pump from the CNP NSZ (pool, horizontal) range (50 Hz). Rated 4 kW, 5–60 m³/h, head 14–26 m.
- Built for large circulation flows
- Handles clean pool water up to 100 °C (other pool series up to 50 °C)
- Full dimension set published for every model
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: Pool pump catalogue, printed pp. 1–2.
| Flow (m³/h) | Head (m) |
|---|---|
| 5 | 25.5 |
| 10 | 25.6 |
| 20 | 25.3 |
| 30 | 23.9 |
| 35 | 22.7 |
| 50 | 18 |
| 60 | 13.6 |
Dimensions & weight
| Code | Description | Value |
|---|---|---|
| DN1 | inlet | 65 mm |
| DN2 | outlet | 50 mm |
| A1 | A1 | 145 mm |
| A2 | A2 | 125 mm |
| n1 | inlet bolt holes | 4 |
| n2 | outlet bolt holes | 4 |
| a | a | 466 mm |
| a1 | a1 | 41 mm |
| H1 | H1 | 172 mm |
| H2 | H2 | 292 mm |
| H3 | H3 | 338 mm |
| L1 | L1 | 950 mm |
| L2 | L2 | 870 mm |
| L3 | L3 | 330 mm |
| L4 | L4 | 290 mm |
| L5 | L5 | 242 mm |
| L6 | L6 | 250 mm |