Flue Pipe with Bellmouth Almeva LPRL18, 80/125 mm, 1 m

Almeva LPRL18 is a 1 m flue pipe with a bellmouth designed for 80/125 mm concentric duct systems. The rigid flue section provides a direct connection between concentric vent components, ensuring correct alignment and a continuous pathway for exhaust and combustion air in residential and light-commercial installations where an 80/125 mm diameter is specified.

Advantages

The bellmouth end facilitates smooth airflow transition and reduces turbulence at the joint, while the rigid construction maintains straightness and alignment along the run. The pipe is manufactured to fit standard 80/125 concentric systems, offering consistent dimensions for reliable sealing and mechanical connection. Its 1 m length simplifies system design by providing a standardized modular segment that can be combined with other compatible fittings and pipes.

Suitable for

• Concentric flue systems with an 80/125 mm diameter
• Residential gas appliance venting (boilers, water heaters) requiring a rigid section
• Light-commercial installations where standardized 1 m segments are used
• Connections where a bellmouth end is needed to improve airflow and seal integrity

Key specifications

• Concentric diameter: 80/125 mm
• Length: 1 metre
• End type: bellmouth (kielich) on one end for direct connection
• Material: rigid pipe construction suitable for flue use
• Intended application: venting for gas appliances in residential and light-commercial settings

How to use

Install the Almeva LPRL18 as a straight 1 m segment within an 80/125 mm concentric flue run, aligning the bellmouth end with the mating fitting or component. Ensure mating surfaces are clean and free of debris, slide the bellmouth over or into the corresponding concentric duct per the system’s assembly method, and secure connections according to the appliance and system manufacturer instructions. Maintain correct pitch and support spacing to prevent sagging and to preserve airtight joints.

Usage recommendations

Inspect all connections after assembly and before commissioning the appliance. Use compatible Almeva concentric components to maintain system integrity and follow local regulations and the appliance manufacturer’s instructions for flue installation, clearances, and ventilation.