Leo 50WQ18-25-3 / 3KW 400V Submersible Sewage Pump And Motor
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Introducing the LEO 50WQ18-25-3, a robust submersible sewage pump designed to handle the toughest wastewater management challenges in residential, commercial, and municipal applications. Built specifically for pumping sewage, sludge, and heavily contaminated water, this submersible pump delivers reliable performance in underground sumps, treatment facilities, and emergency drainage scenarios where conventional surface pumps fall short.
Engineered with a durable cast iron or ductile iron casing and corrosion-resistant internal components, the 50WQ18-25-3 features LEO's proven submersible technology that allows it to operate fully submerged in harsh sewage environments. Its robust impeller design and reinforced mechanical seal make it ideal for continuous or intermittent duty in municipal sewage stations, industrial waste facilities, and high-volume septic system applications where durability and consistent flow rates are essential.
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At a glance
Power: 3 kW (4 HP)Supply: 400 V three-phase, 50 HzMax. head: 27.3 mMax. flow: 45 m³/h (750 l/min)Connections: Outlet 2"Specifications
| Brand | Leo |
| Model | 50WQ18-25-3 |
| Type | WQ Submersible Sewage Pump 50WQ 2900 rpm |
| Motor power | 3 kW (4 HP) |
| Supply | 400 V three-phase, 50 Hz |
| Speed | 2900 rpm |
| Connection | Outlet 2" |
| Max. solids passage | 20 mm |
| Shut-off head | 27.3 m |
| Flow range | 0 – 45 m³/h (0 – 750 l/min) |
| Dimensions (W × L × H) | 32.4 × 78.4 × 28.9 cm |
| Weight | 53 kg |
| Item code | 50WQ18-25-3(380V) |
Performance Table
| Flow Q (m³/h) | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 |
|---|---|---|---|---|---|---|---|---|---|---|
| Flow Q (l/min) | 0 | 83 | 167 | 250 | 333 | 417 | 500 | 583 | 667 | 750 |
| Head H (m) | 27.3 | 27.2 | 26.6 | 25.6 | 24.2 | 22.5 | 20.4 | 17.8 | 14.8 | 11.4 |
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 50WQ18-25-3:
Leo WQ Submersible Sewage Pump 50WQ to 150WQ (2900 / 1450 rpm) – Performance Curves and Technical Data (03-SUBMERSIBLE PUMP catalogue p13, 14, 15)
1 MB | Download
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 50WQ18-25-3?
The Leo 50WQ18-25-3 has a maximum head of 27.3 m.
How much water can the Leo 50WQ18-25-3 pump?
The Leo 50WQ18-25-3 pumps up to 45 m³/h (750 l/min).
What power supply does the Leo 50WQ18-25-3 need?
Supply: 400 V three-phase, 50 Hz. Motor power: 3 kW (4 HP).
What are the pipe connections of the Leo 50WQ18-25-3?
Outlet 2".
