Leo 4SR4-44 / 3.7KW Submersible Borehole Pump Only
12350
Introducing the LEO 4SR4-44 submersible borehole pump, a robust 4-inch pump engineered for reliable water extraction in demanding applications across mining, agriculture, aquaculture, and food and beverage industries. Built on proven submersible pump technology, this model combines efficient hydraulic design with premium stainless steel construction to deliver dependable performance for everything from agricultural irrigation to industrial water supply systems.
Constructed with an AISI304 stainless steel casing and motor base that meets NEMA standards, the 4SR4-44 features durable Noryl® impellers (FDA-approved for food-grade applications) and a floating impeller design that ensures longevity even in challenging conditions. Equipped with a built-in AISI304 check valve, integrated strainer, and rated for sand content up to 0.25%, this submersible pump handles both clear and slightly sediment-laden water with ease, making it ideal for borehole and well installations where durability and corrosion resistance are paramount.
At a glance
Power: 3.7 kW (5 HP)Max. head: 285 mMax. flow: 6 m³/h (100 l/min)Connections: Outlet 1¼"Specifications
| Brand | Leo |
| Model | 4SR4-44 |
| Type | 4SR4 Submersible Borehole Pump (100 mm) |
| Motor power | 3.7 kW (5 HP) |
| Stages | 44 |
| Connection | Outlet 1¼" |
| Shut-off head | 285 m |
| Flow range | 0 – 6 m³/h (0 – 100 l/min) |
| Dimensions (W × L × H) | 10 × 113 × 10 cm |
| Weight | 9.3 kg |
| Item code | 4SR4-44 |
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) | 285 | 266 | 260 | 254 | 248 | 238 | 229 | 203 | 172 | 139 | 100 | 59 |
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 4SR4-44:
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 4SR4-44?
The Leo 4SR4-44 has a maximum head of 285 m.
How much water can the Leo 4SR4-44 pump?
The Leo 4SR4-44 pumps up to 6 m³/h (100 l/min).
What is the motor power of the Leo 4SR4-44?
The motor power is 3.7 kW (5 HP).
What are the pipe connections of the Leo 4SR4-44?
Outlet 1¼".
