NSC (pool, cast iron)
Cast-iron swimming-pool circulation pumps
Cast-iron swimming-pool circulation pumps: robust and economical for pool circulation and water-feature duty. Choose the model by pool volume and the head of your filter and pipework.
- Rugged cast-iron pump body
- Clean pool water up to 50 °C
- Overall length listed for every model
- Flow and head listed for each model; send your pool volume and we confirm the size
CNP-S-000017- Flow
- 3–24 m³/h
- Head
- up to 19 m
- Power
- 0.25–1.1 kW
- Mains
- 50 Hz / 60 Hz
- Models
- 11
- Liquid temp.
- 5 to 50 °C (NSZ: -20 to 100 °C)
Sizes
| Size | Description | Rated flow | Flow range | Max pressure | Motor | Connection | Models |
|---|---|---|---|---|---|---|---|
| NSC-L50 | Swimming pool pump with engineering-plastic flow parts | 9 m³/h | 3–15 m³/h | 3 bar | 0.37 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
| NSC-L75 | Swimming pool pump with engineering-plastic flow parts | 12 m³/h | 3–21 m³/h | 3 bar | 0.55 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
| NSC-L100 | Swimming pool pump with engineering-plastic flow parts | 15 m³/h | 3–24 m³/h | 3 bar | 0.75 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
| NSC-L120 | Swimming pool pump with engineering-plastic flow parts | 15 m³/h | 3–24 m³/h | 3 bar | 0.9 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
| NSC-L150 | Swimming pool pump with engineering-plastic flow parts | 15 m³/h | 3–24 m³/h | 3 bar | 1.1 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
| NSC35 | Swimming pool pump with engineering-plastic flow parts | 9 m³/h | 3–12 m³/h | 3 bar | 0.25 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
| NSC50 | Swimming pool pump with engineering-plastic flow parts | 9 m³/h | 3–15 m³/h | 3 bar | 0.37 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
| NSC75 | Swimming pool pump with engineering-plastic flow parts | 12 m³/h | 3–18 m³/h | 3 bar | 0.55 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
| NSC100 | Swimming pool pump with engineering-plastic flow parts | 12 m³/h | 3–21 m³/h | 3 bar | 0.75 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
| NSC120 | Swimming pool pump with engineering-plastic flow parts | 15 m³/h | 3–24 m³/h | 3 bar | 0.9 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
| NSC150 | Swimming pool pump with engineering-plastic flow parts | 15 m³/h | 3–24 m³/h | 3 bar | 1.1 kW | Union joint, metric (GB) or inch (ANSI) | 1 |
Models
Filter by duty point, mains frequency or size. Click a model for its performance curve and data.
| Model | Size | Stages | Hz | Motor kW | Flow m³/h | Head m | rpm | kg | |
|---|---|---|---|---|---|---|---|---|---|
| NSC35 | NSC35 | — | 50 | 0.25 | 3–12 | 3–6 | 2850 | — | CurvePDF |
| NSC50 | NSC50 | — | 50 | 0.37 | 3–15 | 3.8–7.5 | 2850 | — | CurvePDF |
| NSC75 | NSC75 | — | 50 | 0.55 | 3–18 | 5–10.5 | 2850 | — | CurvePDF |
| NSC100 | NSC100 | — | 50 | 0.75 | 3–21 | 5.8–12.5 | 2850 | — | CurvePDF |
| NSC120 | NSC120 | — | 50 | 0.9 | 3–24 | 5–15 | 2850 | — | CurvePDF |
| NSC150 | NSC150 | — | 50 | 1.1 | 3–24 | 7.5–17.5 | 2850 | — | CurvePDF |
| NSC-L50 | NSC-L50 | — | 60 | 0.37 | 3–15 | 5–8.6 | 3450 | — | CurvePDF |
| NSC-L75 | NSC-L75 | — | 60 | 0.55 | 3–21 | 4.5–12 | 3450 | — | CurvePDF |
| NSC-L100 | NSC-L100 | — | 60 | 0.75 | 3–24 | 4–14 | 3450 | — | CurvePDF |
| NSC-L120 | NSC-L120 | — | 60 | 0.9 | 3–24 | 6.4–16.5 | 3450 | — | CurvePDF |
| NSC-L150 | NSC-L150 | — | 60 | 1.1 | 3–24 | 8.9–18.5 | 3450 | — | CurvePDF |
Performance range
Every model of the NSC (pool, cast iron) range on one chart: each line is the performance curve of one model. Click a line or dot to open that model with its full data.
Logarithmic scales. Published catalogue data for clean water; the correct model for your duty is confirmed by our engineers.
Dimensions & weight
Net weight and the main dimensions of each model, in millimetres, from the catalogue. Open a model for the labelled dimension drawing.
Spare parts for NSC (pool, cast iron)
Parts list of the series with the material of each part. To order, send the model code and the part you need.
| No. | Part | Material | Standard | Applies to | |
|---|---|---|---|---|---|
| Flow passage | Engineering plastics | — | All sizes | ||
| Mechanical seal | Graphite / ceramic (or silicon carbide) | — | All sizes | ||
| Motor casing | Aluminium (08F rimmed steel on 60 Hz synchronous motors) | — | All sizes | ||
| O-ring | Nitrile rubber (NBR) | — | All sizes |
Technical data
Liquid temperature
- 5 to 50 °C (NSZ: -20 to 100 °C)
Ambient conditions
- Up to 40 °C
Motor
- Two-pole motor; see each model
Supply voltage
- 220/380 V
- 380 V
- 115/230 V
Typical applications
- Domestic and commercial swimming pools
- Water parks and water landscape gardening
- Mariculture and SPA
Pumped liquid
- Clean swimming-pool water at 5–50 °C. Maximum working pressure 0.3 MPa (3 bar) for the plastic-body pumps, 10 bar for the stainless NSZ.
Data basis
- 50 Hz, 20 °C air-free water, kinematic viscosity 1 mm²/s; speed 2850–2950 rpm at 50 Hz, 3450 rpm at 60 Hz; curve tolerance ISO 9906:2012 Grade 3B (NSZ)
- 60 Hz, 20 °C air-free water, kinematic viscosity 1 mm²/s; speed 2850–2950 rpm at 50 Hz, 3450 rpm at 60 Hz; curve tolerance ISO 9906:2012 Grade 3B (NSZ)
Performance values are taken from the published CNP catalogue data. Our engineers confirm the final selection for your liquid, temperature, supply and site before quoting.
