Flue Pipe Reducer Almeva LIL 80/125 to 60/100

The Almeva LIL 80/125 to 60/100 flue pipe reducer provides a sealed mechanical transition between concentric duct sizes 80/125 mm and 60/100 mm. Intended for balanced flue and ventilation systems, this reducer allows safe and compact coupling of concentric exhaust and air intake pipes where a change of concentric diameter is required. It is manufactured to fit Almeva LIL concentric components and to maintain proper alignment and airflow within the flue system.

Advantages

This reducer ensures a tight, slip-fit connection between two concentric pipe diameters, helping to prevent leaks and maintain balanced combustion air and flue gas paths. Compatibility with Almeva LIL components supports consistent assembly and reduces the need for additional adapters. The compact design minimizes added length in the flue run and preserves the concentric geometry necessary for correct draft and condensate drainage.

Suitable for

• Connecting concentric flue ducts in balanced flue boiler and heater installations
• Transitioning between 80/125 mm and 60/100 mm concentric duct runs
• Renovation or modification of ventilation systems that use Almeva LIL components
• Situations requiring a sealed mechanical join between differing concentric diameters

Key specifications

• Concentric inlet diameter: 80/125 mm
• Concentric outlet diameter: 60/100 mm
• Type: concentric flue reducer for balanced flue systems
• Material: corrosion-resistant metal suitable for flue exhaust applications
• Design: slip-fit sealed connection to maintain airflow and prevent gas leakage

How to use

Install the reducer where a change of concentric diameter is required, ensuring both mating pipe ends are clean and free of debris. Slide the larger end over the 80/125 mm duct and the smaller end onto the 60/100 mm duct, aligning concentric inner and outer tubes. Secure any required clamps or sealing elements according to system instructions and check that the overall assembly preserves the correct gradient and routing for condensate drainage. Verify that the joined system is airtight and that combustion air and exhaust pathways are unobstructed before commissioning.

Usage recommendations

Use only with compatible Almeva LIL concentric piping and follow appliance manufacturer instructions and local regulations for flue installation. Periodically inspect joints for corrosion or looseness and ensure condensate traps and ventilation clearances remain compliant with the installation guidelines.