Flue elbow (15°) Almeva LIK DN80/125, model LPBK18

The Almeva LIK DN80/125 15° flue elbow (model LPBK18) is a concentric chimney system component designed to change the direction of flue gas flow by 15 degrees. It is manufactured for systems with an 80 mm inner diameter and a 125 mm outer diameter, and is compatible with concentric flue pipes used in ventilation and exhaust installations for gas appliances and heating systems. The part is intended to provide a smooth directional adjustment while maintaining the integrity of the concentric flue profile.

Advantages

This 15° flue elbow is engineered for a compact directional change with minimal impact on flow dynamics and pressure loss. Its concentric design preserves the separation between combustion gas and ventilation air within DN80/125 systems. The component simplifies alignment and connection of flue sections in confined or offset installations and supports secure sealing and consistent combustion performance when correctly installed.

Suitable for

• Concentric flue systems with DN80 inner / DN125 outer dimensions
• Directional adjustments in chimney runs for gas boilers and water heaters
• Retrofit or new installations where a 15° deviation is required
• Ventilation and exhaust ducting that requires compact elbow elements

Key specifications

• Angle: 15°
• Inner diameter: 80 mm
• Outer diameter: 125 mm
• Concentric design suitable for combined flue/air intake systems
• Material: corrosion-resistant construction suitable for exhaust gases (manufacturer standard materials)

How to use

Fit the flue elbow into the concentric pipe run at the location where a 15° change of direction is needed. Ensure both inner and outer pipe ends are clean and free of debris before insertion. Push the elbow fully onto the mating pipe sections until the stop or locking feature is engaged, and verify alignment with adjacent flue components. If the system requires it, apply appropriate seals or gaskets specified for concentric DN80/125 connections and secure any clamps or fasteners according to manufacturer guidance. After installation, inspect the joint for correct seating and test the system for proper draft and leak-free operation following local codes.

Usage recommendations

Use the elbow only in compatible concentric DN80/125 systems and follow appliance and local ventilation regulations. Avoid excessive bending by combining this 15° element with other specified components rather than forcing alignment through pipe deformation. Perform periodic inspections of joints and seals, and replace worn or damaged parts to maintain safe exhaust operation.