Leo 4SR1-36 / 1.1KW Submersible Borehole Pump Only
10415
The LEO 4SR1-36 is a robust 4-inch submersible borehole pump engineered for demanding applications across mining, agriculture, aquaculture, food and beverage processing, and residential water supply systems. Built on decades of LEO's submersible pump expertise, this model combines reliable deep-well performance with versatile flow capabilities ranging from 1 to 10 m3/h, making it an ideal choice for both industrial and domestic installations.
Construction excellence defines this borehole pump, featuring a corrosion-resistant AISI304 stainless steel casing paired with durable Noryl® composite impellers that meet FDA approval standards for food-safe applications. The integrated AISI304 check valve, built-in strainer, and NEMA-compliant motor base deliver long-lasting performance in challenging conditions, while the IP68 protection rating and floating impeller design ensure reliable operation even with minor sand content up to 0.25%, making this submersible pump equally suited for crystal-clear boreholes and slightly sediment-laden wells.
At a glance
Power: 1.1 kWMax. head: 240 mMax. flow: 1.5 m³/h (25 l/min)Connections: Outlet 1¼"Specifications
| Brand | Leo |
| Model | 4SR1-36 |
| Type | 4SR1 Submersible Borehole Pump (100 mm) |
| Motor power | 1.1 kW |
| Stages | 36 |
| Connection | Outlet 1¼" |
| Shut-off head | 240 m |
| Flow range | 0 – 1.5 m³/h (0 – 25 l/min) |
| Dimensions (W × L × H) | 10 × 87 × 10 cm |
| Weight | 8.2 kg |
| Item code | 4SR1-36 |
Performance Table
| Flow Q (m³/h) | 0 | 0.3 | 0.6 | 0.9 | 1.2 | 1.5 |
|---|---|---|---|---|---|---|
| Flow Q (l/min) | 0 | 5 | 10 | 15 | 20 | 25 |
| Head H (m) | 240 | 222 | 197 | 160 | 111 | 49.3 |
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 4SR1-36:
Leo 4SR1 Series Performance Curves
332 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 4SR1-36?
The Leo 4SR1-36 has a maximum head of 240 m.
How much water can the Leo 4SR1-36 pump?
The Leo 4SR1-36 pumps up to 1.5 m³/h (25 l/min).
What is the motor power of the Leo 4SR1-36?
The motor power is 1.1 kW.
What are the pipe connections of the Leo 4SR1-36?
Outlet 1¼".
