Pump Circulation WILO PICO 25/1-6 180

The WILO PICO 25/1-6 180 circulation pump is designed for domestic and small commercial heating systems where reliable water circulation, compact dimensions and low noise levels are required. It provides a maximum flow rate of 2.5 m³/h and a maximum head of 6 meters, making it suitable for single-zone radiators, underfloor heating loops and small boiler circuits. The pump's compact construction and electrical connection arrangement allow installation in tight plant-room spaces and easier integration into existing pipework.

Advantages

The pump combines compact size with low power consumption and quiet operation, reducing both energy costs and acoustic impact in living spaces. Its corrosion-resistant wet rotor design and robust housing support long-term operation with minimal maintenance. The product's straightforward mounting and electrical connection simplify replacement or retrofit tasks.

Suitable for

• Residential central heating circuits
• Individual radiator branches and heating zones
• Small commercial heating systems and boiler circuits
• Underfloor heating manifolds with low to medium head requirements

Key specifications

• Maximum flow rate: 2.5 m³/h
• Maximum head: 6 m
• Connection type: flange or threaded pump flange compatible with standard heating pipework
• Design: compact wet-rotor circulation pump
• Operation: low-noise motor suitable for domestic environments
• Energy characteristics: designed for energy-efficient continuous operation

How to use

Install the pump in the return or supply line according to system design and local regulations, ensuring correct flow direction as indicated on the pump body. Connect electrical supply following the wiring diagram and safety standards, and purge air from the circuit after installation to avoid cavitation. Start the pump and verify system pressure, temperature and flow; make any necessary balancing adjustments at radiators or manifolds to achieve the required heat distribution.

Usage recommendations

For reliable long-term performance, check system water quality and maintain appropriate inhibitor levels to limit corrosion and deposits. Avoid running the pump dry, and schedule periodic inspections for mounting seals and electrical connections. When replacing older pumps, compare hydraulic performance curves to ensure the selected model meets system head and flow requirements.