Leo 4SR3-30 / 2.2KW Submersible Borehole Pump Only
12343
Introducing the LEO 4SR3-30 submersible borehole pump, a robust 4-inch pump engineered for reliable deep-well water extraction across diverse industries. Built to perform in mining, agriculture, aquaculture, food and beverage applications, as well as residential water supply systems, this submersible pump combines professional-grade construction with versatile performance capabilities suitable for both industrial and domestic installations.
Constructed from corrosion-resistant AISI304 stainless steel casing and motor base, the 4SR3-30 features a durable floating impeller design manufactured from FDA-approved American Noryl® material that ensures longevity and hygiene compliance. Its high-quality hydraulic design, integrated check valve, built-in strainer, and NEMA-standard components make it ideal for handling challenging conditions including sandy or slightly contaminated water, with maximum sand content tolerance of 0.25% and flow rates ranging from 1 to 10 m3/h.
At a glance
Power: 2.2 kWMax. head: 183 mMax. flow: 4.2 m³/h (70 l/min)Connections: Outlet 1¼"Specifications
| Brand | Leo |
| Model | 4SR3-30 |
| Type | 4SR3 Submersible Borehole Pump (100 mm) |
| Motor power | 2.2 kW |
| Stages | 30 |
| Connection | Outlet 1¼" |
| Shut-off head | 183 m |
| Flow range | 0 – 4.2 m³/h (0 – 70 l/min) |
| Dimensions (W × L × H) | 10 × 75 × 10 cm |
| Weight | 7.1 kg |
| Item code | 4SR3-30 |
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) | 183 | 176 | 171 | 165 | 156 | 145 | 134 | 122 | 91.9 | 46.9 |
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 4SR3-30:
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 4SR3-30?
The Leo 4SR3-30 has a maximum head of 183 m.
How much water can the Leo 4SR3-30 pump?
The Leo 4SR3-30 pumps up to 4.2 m³/h (70 l/min).
What is the motor power of the Leo 4SR3-30?
The motor power is 2.2 kW.
What are the pipe connections of the Leo 4SR3-30?
Outlet 1¼".
