Leo 4SR3-16 / 1.1KW Submersible Borehole Pump Only
12342
The LEO 4SR3-16 is a robust 4-inch submersible borehole pump engineered for reliable deep-well water extraction across diverse industries. Built on decades of submersible pump expertise, this model excels in mining, agriculture, aquaculture, food and beverage applications, as well as residential water supply systems. Its versatile design and durable construction make it an ideal choice for continuous pumping in demanding borehole environments.
Constructed with premium AISI304 stainless steel casing and motor base that meets NEMA standards, the 4SR3-16 features a sophisticated floating impeller system crafted from FDA-approved Noryl® material for exceptional durability and reliability. The pump incorporates a built-in AISI304 check valve, integrated strainer, and high-quality hydraulic design to handle sandy water with up to 0.25% sediment content, delivering consistent performance across flow rates from 1 to 10 m3/h with available power options from 0.37kW to 7.5kW in both single and three-phase configurations.
At a glance
Power: 1.1 kW (1.5 HP)Max. head: 106 mMax. flow: 4.2 m³/h (70 l/min)Connections: Outlet 1¼"Specifications
| Brand | Leo |
| Model | 4SR3-16 |
| Type | 4SR3 Submersible Borehole Pump (100 mm) |
| Motor power | 1.1 kW (1.5 HP) |
| Stages | 16 |
| Connection | Outlet 1¼" |
| Shut-off head | 106 m |
| Flow range | 0 – 4.2 m³/h (0 – 70 l/min) |
| Dimensions (W × L × H) | 10 × 43 × 10 cm |
| Weight | 4.2 kg |
| Item code | 4SR3-16 |
Performance Table
| Flow Q (m³/h) | 0 | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 2.7 | 3 | 3.6 | 4.2 |
|---|---|---|---|---|---|---|---|---|---|---|
| Flow Q (l/min) | 0 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 60 | 70 |
| Head H (m) | 106 | 101 | 98 | 95 | 89 | 83 | 77 | 70 | 54 | 33 |
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 4SR3-16:
Leo 4SR3 Series Performance Curves
422 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 4SR3-16?
The Leo 4SR3-16 has a maximum head of 106 m.
How much water can the Leo 4SR3-16 pump?
The Leo 4SR3-16 pumps up to 4.2 m³/h (70 l/min).
What is the motor power of the Leo 4SR3-16?
The motor power is 1.1 kW (1.5 HP).
What are the pipe connections of the Leo 4SR3-16?
Outlet 1¼".
