Flue Reducer ACV model 780269 PP concentric 60/100 to 80/125

Flue Reducer ACV model 780269 PP concentric 60/100 to 80/125 is a polypropylene concentric flue adapter designed to connect a 60/100 concentric pipe to an 80/125 concentric pipe. Intended for use with boilers and ventilation systems, this reducer maintains separate sealed channels for exhaust gases and combustion air while adapting between the two diameters. The component is suitable for residential and light commercial installations where a reliable concentric transition is required.

Advantages

The polypropylene construction provides chemical and corrosion resistance while remaining lightweight for easier handling and installation. The concentric design preserves the coaxial exhaust and intake pathways, ensuring safe separation of combustion products and intake air. The adapter is factory-shaped to match the specified diameters, reducing on-site modification and enabling a secure fit between different concentric flue sections. Its smooth internal surfaces support unobstructed flow and simplified cleaning where accessible.

Suitable for

• Connecting a 60/100 concentric flue to an 80/125 concentric flue in boiler installations
• Residential heating systems requiring a diameter transition for balanced flue appliances
• Light commercial ventilation or boiler setups where concentric pipe compatibility is needed

Key specifications

• Material: polypropylene (PP) for chemical and corrosion resistance
• Type: concentric reducer maintaining separate exhaust and air paths
• Input diameter: concentric 60/100 (inner/outer concentric dimensions)
• Output diameter: concentric 80/125 (inner/outer concentric dimensions)
• Suitable environment: indoor flue and ventilation systems in residential and light commercial settings

How to use

Install the reducer by aligning the smaller concentric end with the 60/100 pipe and the larger end with the 80/125 pipe, ensuring each end is fully engaged and oriented so that the exhaust and air channels remain coaxial. Use the appropriate sealing method and clamps recommended for polypropylene flue connections in your system to achieve an airtight joint. Verify that the overall flue run maintains required slopes and clearances specified by the boiler manufacturer and local regulations. After installation, perform a visual inspection and combustion appliance tests to confirm correct draft and absence of leaks.

Usage recommendations

Use this ACV PP concentric reducer only with compatible concentric flue components and according to the appliance manufacturer’s installation instructions and applicable national codes. Regular inspection of joints and seals is recommended during routine maintenance to ensure continued safe operation.