Leo 4SR1-26 / 0.75KW Submersible Borehole Pump Only
12330
The LEO 4SR1-26 is a robust 4-inch submersible borehole pump engineered for reliable water extraction in demanding applications across mining, agriculture, aquaculture, and food and beverage industries. Built on decades of proven submersible pump technology, this model delivers consistent performance for domestic water supply systems, industrial installations, and commercial operations requiring dependable deep-well pumping solutions.
Constructed with marine-grade AISI304 stainless steel casing and motor base that meets NEMA standards, the 4SR1-26 features FDA-approved Noryl® impellers paired with a floating impeller design that ensures durability and longevity even in challenging conditions. Its integrated AISI304 check valve, built-in strainer, and sophisticated hydraulic engineering make it ideal for applications with low sand content, while available single-phase and three-phase motor options ranging from 0.37 to 7.5KW provide flexibility for both residential and industrial installations.
At a glance
Power: 0.75 kW (1 HP)Max. head: 173 mMax. flow: 1.5 m³/h (25 l/min)Connections: Outlet 1¼"Specifications
| Brand | Leo |
| Model | 4SR1-26 |
| Type | 4SR1 Submersible Borehole Pump (100 mm) |
| Motor power | 0.75 kW (1 HP) |
| Stages | 26 |
| Connection | Outlet 1¼" |
| Shut-off head | 173 m |
| Flow range | 0 – 1.5 m³/h (0 – 25 l/min) |
| Dimensions (W × L × H) | 10 × 65 × 10 cm |
| Weight | 5.8 kg |
| Item code | 4SR1-26 |
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) | 173 | 160 | 141 | 117 | 81 | 39 |
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 4SR1-26:
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 4SR1-26?
The Leo 4SR1-26 has a maximum head of 173 m.
How much water can the Leo 4SR1-26 pump?
The Leo 4SR1-26 pumps up to 1.5 m³/h (25 l/min).
What is the motor power of the Leo 4SR1-26?
The motor power is 0.75 kW (1 HP).
What are the pipe connections of the Leo 4SR1-26?
Outlet 1¼".
