Wilo SPU4-03-08-B2 4” Borehole Pump End – for 0.55 kW motor
11547
The Wilo SPU4-03-08-B2 is a 4” multistage submersible borehole pump end from the Wilo Sub SPU4 range, built for a 0.55 kW 4” motor (motor and control box sold separately, or buy the complete set). Nominal flow 3 m³/h, 8 stages, maximum head about 54 m – made for household supply, garden and small irrigation.
Overstock special: 6 available at a reduced price while stock lasts.
Applications
- Water supply from boreholes and rainwater storage tanks
- Domestic water supply, sprinkling and irrigation
- Pressure boosting
- Lowering the water level
- Pumping clean water without long-fibre or abrasive constituents
Features
- Multistage 4” submersible pump end (hydraulics only) with NEMA coupling for a standard 4” motor
- All parts in contact with water in stainless steel 1.4301 and Noryl (PPE) – corrosion-free
- Integrated non-return valve in the discharge head
- Floating Noryl impellers for low wear with sand content up to 50 g/m³
- Suitable for vertical or horizontal installation (cooling jacket for horizontal)
- Protection class IP68, max. immersion depth 200 m, fluid 3–30 °C
Specifications
| Parameter | Value |
|---|---|
| Brand | Wilo |
| Item code | 2759022A |
| Model | SPU4-03-08-B2 |
| Type | 4” submersible borehole pump end (hydraulic part, no motor) |
| Nominal flow | 3 m³/h |
| Number of stages | 8 |
| Maximum head | 54 m |
| Required motor | 0.55 kW 4” NEMA submersible motor (230 V single-phase or 400 V three-phase) |
| Discharge connection | Rp 1¼ |
| Pump outside diameter | 98 mm |
| Impellers | Noryl (PPE), floating |
| Housing, shaft, strainer, check valve | Stainless steel 1.4301 / 304 |
| Max. sand content | 50 g/m³ |
| Max. fluid temperature | 30 °C |
| Max. immersion depth | 200 m |
| Protection class | IP68 |
| Max. starts per hour | 20 |
Performance
| Flow Q m³/h | 0 | 1.2 | 1.8 | 2.4 | 3.0 | 3.6 | 4.2 |
|---|---|---|---|---|---|---|---|
| Head H m | 54 | 51 | 49 | 43 | 38 | 30 | 19 |
Dimensions & Weight
| Parameter | Value |
|---|---|
| Diameter | 98 mm |
| Pump end mass | 2.9 kg |
| Shipping mass (approx.) | 3.5 kg |
Hydraulic data from the Wilo SPU4 selection charts and wilo.com data sheets. Pump end supplied without motor. Specifications may change without notice.
Get help choosing the right borehole pump
Overstock special – limited quantities at a reduced price while stock lasts. Send us your borehole depth, water level and daily water need and we will confirm the right pump, motor and cable.