Leo 4SR4-9 / 0.75KW Submersible Borehole Pump Only
10432
Introducing the LEO 4SR4-9 submersible borehole pump, a robust 4-inch pump engineered for reliable water extraction in demanding applications across mining, agriculture, aquaculture, and industrial sectors. Built on decades of LEO's expertise in submersible pump technology, this model delivers consistent performance for everything from deep borehole water supply to food and beverage processing, making it an ideal choice for both commercial operations and residential installations requiring dependable long-term service.
Constructed with premium AISI304 stainless steel casing and motor base that meets NEMA standards, the 4SR4-9 features durable Noryl® FDA-approved impellers engineered for exceptional longevity and resistance to wear. The pump incorporates advanced hydraulic design with integrated check valves, strainers, and high-quality gaskets throughout, enabling it to handle mildly sandy water up to 0.25% sand content while maintaining optimal efficiency-making this submersible pump particularly well-suited for challenging groundwater conditions where corrosion resistance and durability are paramount.
At a glance
Power: 0.75 kW (1 HP)Max. head: 59 mMax. flow: 6 m³/h (100 l/min)Connections: Outlet 1¼"Specifications
| Brand | Leo |
| Model | 4SR4-9 |
| Type | 4SR4 Submersible Borehole Pump (100 mm) |
| Motor power | 0.75 kW (1 HP) |
| Stages | 9 |
| Connection | Outlet 1¼" |
| Shut-off head | 59 m |
| Flow range | 0 – 6 m³/h (0 – 100 l/min) |
| Dimensions (W × L × H) | 10 × 35 × 10 cm |
| Weight | 3.3 kg |
| Item code | 4SR4-9 |
Performance Table
| Flow Q (m³/h) | 0 | 1.5 | 1.8 | 2.1 | 2.4 | 2.7 | 3 | 3.6 | 4.2 | 4.8 | 5.4 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flow Q (l/min) | 0 | 25 | 30 | 35 | 40 | 45 | 50 | 60 | 70 | 80 | 90 | 100 |
| Head H (m) | 59 | 55 | 54 | 52 | 51 | 49 | 47 | 43 | 37 | 28 | 20 | 10 |
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 4SR4-9:
Leo 4SR4 Series Performance Curves
546 kB | Download
Applications
- 4" SR series submersible pump adopts AISI304 casing and high-strength and durable "floating impeller"
- Impellers are made of American "Noryl®" material, which has got the approval of FDA(American Food and Drug Administration)
- With high-quality hydraulic design, AISI304 motor base up to "NEMA" standard, built-in AISI304 check valve, gasket, motorund outlet and built-in strainer
- Can be widely applied to mining and building industry, agriculture, aquaculture, food and beverage industry and family water supply
Motor And Pump
- Power: Single phase: 0.37~2.2KW 220~240V
- Power: Three phase: 0.75~7.5KW 380~415V
- Insulation class: B
- Protection grade: IP68
- Frequency: 50HZ
- Flow range: 1~10 (m3/h)
- Maximum fluid temperature: 35
- Maximum sand content: 0.25%
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 4SR4-9?
The Leo 4SR4-9 has a maximum head of 59 m.
How much water can the Leo 4SR4-9 pump?
The Leo 4SR4-9 pumps up to 6 m³/h (100 l/min).
What is the motor power of the Leo 4SR4-9?
The motor power is 0.75 kW (1 HP).
What are the pipe connections of the Leo 4SR4-9?
Outlet 1¼".
