Leo 4SR5-12 / 1.1KW Submersible Borehole Pump Only
10445
Introducing the LEO 4SR5-12 submersible borehole pump, a robust 4-inch pump engineered for reliable water delivery in demanding environments. This submersible pump excels across diverse applications including agricultural irrigation, aquaculture systems, mining operations, building construction, food and beverage processing, and residential water supply. Built on LEO's proven submersible pump technology, the 4SR5 series combines efficient hydraulic design with dependable performance for both single-phase and three-phase installations.
Constructed from premium AISI304 stainless steel casing and motor base, this borehole pump delivers exceptional corrosion resistance and longevity in challenging conditions. The pump features a durable floating impeller manufactured from FDA-approved Noryl® material, integrated check valve, built-in strainer, and NEMA-compliant components that ensure reliable operation with minimal maintenance. Ideal for applications involving moderately sandy water and sustained duty cycles, the 4SR5-12 handles flow rates up to 10 m3/h with an IP68 protection rating and maximum sand content tolerance of 0.25%, making it perfectly suited for wells, boreholes, and submersed installation scenarios.
At a glance
Power: 1.1 kW (1.5 HP)Max. head: 77 mMax. flow: 4.8 m³/h (80 l/min)Connections: Outlet 1¼"Specifications
| Brand | Leo |
| Model | 4SR5-12 |
| Type | 4SR5 Submersible Borehole Pump (100 mm) |
| Motor power | 1.1 kW (1.5 HP) |
| Stages | 12 |
| Connection | Outlet 1¼" |
| Shut-off head | 77 m |
| Flow range | 0 – 4.8 m³/h (0 – 80 l/min) |
| Dimensions (W × L × H) | 10 × 44 × 10 cm |
| Weight | 4.1 kg |
| Item code | 4SR5-12 |
Performance Table
| Flow Q (m³/h) | 0 | 1.5 | 1.8 | 2.1 | 2.4 | 2.7 | 3 | 3.6 | 4.2 | 4.8 |
|---|---|---|---|---|---|---|---|---|---|---|
| Flow Q (l/min) | 0 | 25 | 30 | 35 | 40 | 45 | 50 | 60 | 70 | 80 |
| Head H (m) | 77 | 72 | 71 | 69 | 68 | 63 | 57 | 49 | 41 | 31 |
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 4SR5-12:
Leo 4SR5 Series Performance Curves
467 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 4SR5-12?
The Leo 4SR5-12 has a maximum head of 77 m.
How much water can the Leo 4SR5-12 pump?
The Leo 4SR5-12 pumps up to 4.8 m³/h (80 l/min).
What is the motor power of the Leo 4SR5-12?
The motor power is 1.1 kW (1.5 HP).
What are the pipe connections of the Leo 4SR5-12?
Outlet 1¼".
