Leo 4SR8-18 / 3KW Submersible Borehole Pump Only
12369
The LEO 4SR8-18 is a 4-inch (100 mm) stainless steel submersible borehole pump end from the 4SR8 series, with 18 stages and a 3.0 kW rating. The 4SR8 hydraulics are sized for a nominal 8 m³/h with an operating range of 4.8 - 12 m³/h (80 - 200 l/min); the high stage count gives the head needed for deep boreholes and long pipe runs. This is the pump end only: it couples to a standard 4" NEMA submersible motor of 3.0 kW, sold separately.
The 4SR range uses an AISI304 stainless steel outer casing, shaft and motor bracket, with floating Noryl® impellers (FDA-approved material) that tolerate small amounts of sand. A built-in AISI304 check valve and inlet strainer protect the pump and the rising main. Typical uses are farm and game-farm water supply, irrigation, livestock watering, domestic and estate borehole systems, and mining and building-site water supply.
At a glance
Power: 3 kWMax. head: 114 mMax. flow: 12 m³/h (200 l/min)Connections: Outlet 2"Best for: Borehole water supply for farms, estates and homes, Irrigation and livestock watering, Mining and building-industry water supplySpecifications
| Brand | Leo |
| Model | 4SR8-18 (pump end only) |
| Stages | 18 |
| Motor required | 3.0 kW, 4" NEMA submersible motor (single-phase 220-240V up to 2.2 kW, or three-phase 380-415V) |
| Nominal flow | 8 m³/h; range 4.8 - 12 m³/h (80 - 200 l/min) |
| Borehole | minimum 100 mm (4") internal diameter |
| Materials | AISI304 casing, shaft, bracket and check valve; Noryl® floating impellers |
| Maximum fluid temperature | 35 °C |
| Maximum sand content | 0.25% |
| Frequency | 50 Hz |
| Brand | Leo |
| Model | 4SR8-18 |
| Type | 4SR8 Submersible Borehole Pump (100 mm) |
| Motor power | 3 kW |
| Stages | 18 |
| Connection | Outlet 2" |
| Shut-off head | 114 m |
| Flow range | 0 – 12 m³/h (0 – 200 l/min) |
| Dimensions (W × L × H) | 10 × 86 × 10 cm |
| Weight | 7.8 kg |
| Item code | 4SR8-18 |
Performance Table
| Flow Q (m³/h) | 0 | 4.8 | 5.4 | 6 | 7.2 | 8.4 | 9.6 | 10.8 | 12 |
|---|---|---|---|---|---|---|---|---|---|
| Flow Q (l/min) | 0 | 80 | 90 | 100 | 120 | 140 | 160 | 180 | 200 |
| Head H (m) | 114 | 104 | 102 | 99.5 | 92.1 | 83.6 | 74.1 | 61.4 | 48.7 |
Head at each flow rate from the manufacturer's technical data. For a duty-point check use the Get a Quote wizard below.
Performance Curves and Technical Data (PDF)
Download the curve sheet with the performance curves, dimensions and technical data for the Leo 4SR8-18:
Leo 4SR8 Series Performance Curves
446 kB | Download
Applications
- Borehole water supply for farms, estates and homes
- Irrigation and livestock watering
- Mining and building-industry water supply
- Water transfer to reservoirs and elevated tanks
Need help choosing or want a price?
Our pump team will check the right size for your flow and head and give you a quote.
WhatsApp us: 082 516 2248 Get a Quote / Size my pump info@pumps.co.za
Frequently Asked Questions
What is the maximum head of the Leo 4SR8-18?
The Leo 4SR8-18 has a maximum head of 114 m.
How much water can the Leo 4SR8-18 pump?
The Leo 4SR8-18 pumps up to 12 m³/h (200 l/min).
What is the motor power of the Leo 4SR8-18?
The motor power is 3 kW.
What are the pipe connections of the Leo 4SR8-18?
Outlet 2".
