Leo 4SR4-7 / 0.55KW Submersible Borehole Pump Only
12347
The LEO 4SR4-7 is a 4-inch submersible borehole pump engineered for reliable water extraction in demanding applications across mining, agriculture, aquaculture, food and beverage processing, and residential water supply systems. Built on decades of submersible pump expertise, this model delivers consistent performance in deep well and borehole installations where durability and efficiency are essential.
Constructed with a corrosion-resistant AISI304 stainless steel casing and motor base that meets NEMA standards, the 4SR4-7 features FDA-approved Noryl® impellers designed for longevity and superior hydraulic performance. Its robust engineering includes an integral AISI304 check valve, built-in strainer, and floating impeller mechanism, making it ideally suited for agricultural irrigation, industrial water supply, and small-scale mining operations where sand content and challenging borehole conditions demand a pump built to last.
At a glance
Power: 0.55 kW (0.75 HP)Max. head: 46 mMax. flow: 6 m³/h (100 l/min)Connections: Outlet 1¼"Specifications
| Brand | Leo |
| Model | 4SR4-7 |
| Type | 4SR4 Submersible Borehole Pump (100 mm) |
| Motor power | 0.55 kW (0.75 HP) |
| Stages | 7 |
| Connection | Outlet 1¼" |
| Shut-off head | 46 m |
| Flow range | 0 – 6 m³/h (0 – 100 l/min) |
| Dimensions (W × L × H) | 10 × 31 × 10 cm |
| Weight | 3 kg |
| Item code | 4SR4-7 |
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) | 46 | 43 | 42 | 41 | 40 | 39 | 37 | 33 | 28 | 21 | 13 | 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 4SR4-7:
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 4SR4-7?
The Leo 4SR4-7 has a maximum head of 46 m.
How much water can the Leo 4SR4-7 pump?
The Leo 4SR4-7 pumps up to 6 m³/h (100 l/min).
What is the motor power of the Leo 4SR4-7?
The motor power is 0.55 kW (0.75 HP).
What are the pipe connections of the Leo 4SR4-7?
Outlet 1¼".
