Retention clamp Almeva FLEX DN80 for non-anchored flue and ventilation connections

Almeva FLEX retention clamp DN80 is a mechanical support designed for non-anchored flue and ventilation connections. The clamp secures Ø80 mm flexible or rigid ducting, maintaining alignment and preventing axial movement without the need for permanent anchors. It is intended for installations where a removable, tool-accessible support is required, and it is compatible with common chimney, exhaust and ventilation systems that use 80 mm diameter ducts.

Advantages

The retention clamp provides stable axial restraint while allowing quick removal and reinstallation for maintenance. Its simple mechanical design enables tool-based tightening and loosening, reducing installation time compared with custom anchor solutions. The clamp is compact and engineered to fit standard 80 mm duct geometries, delivering reliable support for both flexible and rigid pipes without altering the ventilation pathway.

Suitable for

• Securing Ø80 mm flexible flue or ventilation ducts
• Supporting rigid 80 mm chimney and exhaust pipes where anchors are not used
• Applications that require removable, serviceable pipe supports
• Maintenance access points in residential and commercial ventilation systems

Key specifications

• Nominal pipe diameter: 80 mm
• Type: mechanical retention clamp for non-anchored connections
• Compatible with: flexible and rigid ducting of Ø80 mm
• Function: prevents axial movement and maintains alignment
• Installation: tool-accessible tightening and loosening for removal and reinstallation
• Application areas: flue, chimney, exhaust and ventilation systems

How to use

Position the clamp around the Ø80 mm duct at the designated support point and align the pipe in the intended direction. Tighten the clamp using the appropriate tool until it provides firm axial restraint without deforming the pipe. For removal or adjustment, loosen the clamp with the same tool and withdraw the pipe as required. Follow system-specific installation guidelines and ensure clearances and seals in adjacent components remain intact during clamp installation.

Usage recommendations

Use the clamp in accordance with local building codes and the equipment manufacturer’s instructions. Inspect the clamp and surrounding connections periodically for secure fit and signs of wear, particularly after maintenance or thermal cycling. Where a load-bearing support is required, confirm that the clamp is suitable for the specific mechanical loads and supplement with approved supports if necessary.