Leo 4SR12-19 / 4KW Submersible Borehole Pump Only
10477
The LEO 4SR12-19 is a robust 4-inch submersible borehole pump engineered for demanding applications across mining, agriculture, aquaculture, food and beverage production, and residential water supply systems. Built on decades of submersible pump expertise, this model delivers reliable performance in both single-phase and three-phase configurations, making it ideal for varied installation requirements in industrial and domestic settings.
Constructed from corrosion-resistant AISI304 stainless steel throughout the casing, motor base, check valve, and outlet components, the 4SR12-19 features high-quality hydraulic design with a durable floating impeller manufactured from FDA-approved Noryl® material for exceptional longevity and safety. Its IP68 protection rating, built-in strainer, and capacity to handle fluids up to 35 degC with minimal sand content make this borehole pump an excellent choice for applications requiring both durability and food-grade compliance.
At a glance
Power: 4 kW (5.5 HP)Max. head: 120 mMax. flow: 15.5 m³/h (258 l/min)Connections: Outlet 2"Specifications
| Brand | Leo |
| Model | 4SR12-19 |
| Type | 4SR12 Submersible Borehole Pump (100 mm) |
| Motor power | 4 kW (5.5 HP) |
| Stages | 19 |
| Connection | Outlet 2" |
| Shut-off head | 120 m |
| Flow range | 0 – 15.5 m³/h (0 – 258 l/min) |
| Dimensions (W × L × H) | 10 × 116 × 10 cm |
| Weight | 11 kg |
| Item code | 4SR12-19 |
Performance Table
| Flow Q (m³/h) | 0 | 2.4 | 4.8 | 6 | 7.2 | 8.4 | 9.6 | 10.8 | 12 | 13.2 | 14.4 | 15.5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flow Q (l/min) | 0 | 40 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 220 | 240 | 258 |
| Head H (m) | 120 | 116 | 109 | 105 | 100 | 94.4 | 87.6 | 80 | 71.2 | 61.2 | 50.4 | 38.8 |
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 4SR12-19:
Leo 4SR12 Series Performance Curves
445 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 4SR12-19?
The Leo 4SR12-19 has a maximum head of 120 m.
How much water can the Leo 4SR12-19 pump?
The Leo 4SR12-19 pumps up to 15.5 m³/h (258 l/min).
What is the motor power of the Leo 4SR12-19?
The motor power is 4 kW (5.5 HP).
What are the pipe connections of the Leo 4SR12-19?
Outlet 2".
