Pump Weberman CO 25-80-180 (0301W) — centrifugal circulating pump, 25 mm, 80 W, 180 L/h

Weberman CO 25-80-180 (0301W) is a centrifugal circulating pump designed for heating and water circulation systems in residential and small commercial applications. With a 25 mm connection size, 80 W rated motor and a maximum flow rate of 180 L/h, the pump provides steady fluid movement to reduce temperature stratification and maintain consistent heat distribution. The compact design and straightforward installation make it suitable for use in boiler systems, radiators, underfloor heating loops and closed-loop hot water circuits.

Advantages

The pump offers quiet operation and energy-efficient performance at its 80 W power rating, ensuring reliable circulation without excessive electricity consumption. Its centrifugal design delivers a stable flow up to 180 L/h, supporting even heat transfer and reducing thermal gradients within the system. The 25 mm connection size is compatible with common pipework, enabling easy integration into existing installations. Construction and materials are chosen to withstand typical heating system conditions and provide continuous operation for routine household or light commercial use.

Suitable for

• Domestic central heating circulation
• Small commercial heating circuits
• Radiator and boiler loop circulation
• Underfloor heating systems with compatible flow requirements
• Closed-loop hot water recirculation

Key specifications

• Connection diameter: 25 mm
• Motor power: 80 W
• Maximum flow rate: 180 L/h
• Pump type: centrifugal circulating pump
• Application: heating and water circulation systems

How to use

Install the Weberman CO 25-80-180 inline with the heating or hot water circulation circuit, ensuring correct orientation of flow according to system design. Connect to 25 mm pipework using appropriate fittings and secure all joints to prevent leaks. Follow standard electrical connection practices for the motor supply and confirm correct voltage and earthing before powering the unit. After installation, bleed the system to remove trapped air and verify steady flow through radiators or underfloor loops. Periodically check for leaks, unusual noise or performance changes and perform routine maintenance as recommended by system guidelines.

Usage recommendations

Use the pump within its rated flow and power parameters and select compatible pipework and fittings for 25 mm connections. For prolonged service life, avoid dry running, protect the unit from freezing conditions, and ensure regular system water quality maintenance to reduce sediment and corrosion. When integrating into complex systems, consult a qualified heating engineer to confirm correct sizing and hydraulic balance.