Leo 4SR4-48 / 4KW Submersible Borehole Pump Only
10435
Introducing the LEO 4SR4-48 submersible borehole pump, a robust 4-inch pump engineered for reliable water extraction in demanding environments. Built to excel across mining, agriculture, aquaculture, food and beverage processing, and residential water supply applications, this submersible pump delivers consistent performance in boreholes and deep wells where conventional surface pumps fall short. Its versatile power options-ranging from 0.37kW to 7.5kW in both single-phase and three-phase configurations-make it adaptable to virtually any installation requirement.
Every component of the 4SR4-48 is constructed for longevity, featuring a corrosion-resistant AISI304 stainless steel casing, motor base, check valve, and outlet that meet rigorous NEMA standards. The pump's floating impeller technology utilizes food-grade Noryl® material approved by the FDA, ensuring safe operation in agricultural and beverage industry applications where water purity matters. An integrated strainer and high-quality hydraulic design combine to handle sandy or silted water conditions up to 0.25% sand content, making this submersible pump ideal for challenging groundwater environments where durability and reliability are non-negotiable.
At a glance
Power: 4 kW (5.5 HP)Max. head: 322 mMax. flow: 6 m³/h (100 l/min)Connections: Outlet 1¼"Specifications
| Brand | Leo |
| Model | 4SR4-48 |
| Type | 4SR4 Submersible Borehole Pump (100 mm) |
| Motor power | 4 kW (5.5 HP) |
| Stages | 48 |
| Connection | Outlet 1¼" |
| Shut-off head | 322 m |
| Flow range | 0 – 6 m³/h (0 – 100 l/min) |
| Dimensions (W × L × H) | 10 × 126 × 10 cm |
| Weight | 9.9 kg |
| Item code | 4SR4-48 |
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) | 322 | 299 | 292 | 285 | 276 | 267 | 256 | 231 | 199 | 160 | 118 | 70 |
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 4SR4-48:
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 4SR4-48?
The Leo 4SR4-48 has a maximum head of 322 m.
How much water can the Leo 4SR4-48 pump?
The Leo 4SR4-48 pumps up to 6 m³/h (100 l/min).
What is the motor power of the Leo 4SR4-48?
The motor power is 4 kW (5.5 HP).
What are the pipe connections of the Leo 4SR4-48?
Outlet 1¼".
