Leo LRP25-40-180 / 74W 230V Circulation Pump And Motor
10611
The LEO LRP25-40/180 is a versatile circulation pump engineered for demanding heating, ventilation, and air conditioning systems, as well as domestic hot water and solar energy applications. Built to excel in both residential and industrial settings, this circulation pump delivers reliable performance across central heating systems, district heating networks, and pressure boosting requirements for hot water distribution in homes and commercial facilities.
Constructed with a robust brass or anti-rust cast iron pump body, the LRP25-40/180 features a heat-resistant Noryl impeller capable of withstanding temperatures up to 150 degC, paired with a durable 95% alumina ceramic shaft for extended operational life. Its three-speed motor boasts IP44 enclosure protection, H-class insulation, and premium 99% alumina ceramic bearings with copper windings, making it ideally suited for continuous circulation in cold and hot water systems where durability and temperature resilience are essential.
At a glance
Power: 74 WSupply: 230 V single-phase, 50 HzMax. head: 3.8 mMax. flow: 3.75 m³/h (62 l/min)Connections: G1.5Specifications
| Brand | Leo |
| Model | LRP25-40-180 |
| Type | LRP Circulation Pump (3-speed) |
| Power input (speed III) | 74 W |
| Supply | 230 V single-phase, 50 Hz |
| Inlet / outlet | G1.5 |
| Max. head (speed III) | 4.6 m |
| Max. flow | 3.75 m³/h |
| Dimensions (W × L × H) | 15 × 19.5 × 14 cm |
| Weight | 2.71 kg |
| Item code | LRP25-40-180(220V) |
Performance Table
| Flow Q (m³/h) | 0 | 0.25 | 0.5 | 0.75 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.25 | 2.5 | 2.75 | 3 | 3.25 | 3.5 | 3.75 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flow Q (l/min) | 0 | 4 | 8 | 12 | 17 | 21 | 25 | 29 | 33 | 38 | 42 | 46 | 50 | 54 | 58 | 62 |
| Head H (m) – speed III | 4.6 | 4.4 | 4.3 | 4.1 | 3.9 | 3.6 | 3.4 | 3.2 | 2.9 | 2.6 | 2.4 | 2 | 1.7 | 1.4 | 1 | 0.6 |
| Head H (m) – speed II | 4.3 | 4.1 | 3.9 | 3.7 | 3.5 | 3.2 | 3 | 2.7 | 2.4 | 2.1 | 1.7 | 1.4 | 1.1 | 0.7 | 0.4 | – |
| Head H (m) – speed I | 3.8 | 3.4 | 3 | 2.5 | 2 | 1.6 | 1.2 | 0.8 | 0.5 | – | – | – | – | – | – | – |
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 LRP25-40-180:
Leo LRP Circulation Pump (3-speed) – Performance Curves and Technical Data (06-CIRCULATION BOOSTER PUMP catalogue p4, 5, 6, 8)
1 MB | Download
Applications
- It is widely used for heating ventilating and air conditioning (HVAC) circulation, pressure boosting of hot water in family, homes powered by solar energy, industrial auxiliary equipment cold and hot water circulation and so forth
- Water circulation for the central and district heating system
- Domestic hot water circulation
Pump
- Brass or anti-rust cast iron pump body
- Noryl impeller with heat resistance up to 150 degC
- 95% alumina ceramic shaft
- Liquid temperature: 2 degC - 110 degC
Motor
- Insulation class: H
- Enclosures class: IP44
- 99% alumina ceramic bearing
- Copper winding
- Three speed motor
Model Code: LRP25-40-180(220V)
- LRP - Circulation Pump
- 15-50 - Nominal diameter of suction and discharge ports (mm)
- B - Maximum head (dm)
- 130 - Distance between inlet and outlet (mm)
- F - Cast iron pump body & flange connection
- B - Brass pump body & threaded connection
- No identification - Cast iron pump body & threaded connection
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 LRP25-40-180?
The Leo LRP25-40-180 has a maximum head of 3.8 m.
How much water can the Leo LRP25-40-180 pump?
The Leo LRP25-40-180 pumps up to 3.75 m³/h (62 l/min).
What power supply does the Leo LRP25-40-180 need?
Supply: 230 V single-phase, 50 Hz. Motor power: 74 W.
What are the pipe connections of the Leo LRP25-40-180?
G1.5.
