AWENTA duct elbow 45° flat 55×110 mm — 45-degree flat elbow for rectangular ventilation ducting

AWENTA 45° flat elbow 55×110 mm is a compact change-of-direction fitting for rectangular ventilation ducting. Designed for air distribution in residential and commercial ventilation systems, this 45-degree flat elbow adapts runs where a low-profile bend is required. The metal/plastic construction provides dimensional stability while keeping the fitting lightweight and suitable for tight installation spaces.

Advantages

The elbow combines a slim profile with a reliable joint geometry to ensure consistent airflow direction with minimal added bulk. Its mixed metal and plastic materials deliver a balance of strength and ease of handling, reducing installation time. The 45° angle smooths airflow transitions compared with sharp right-angle turns, which helps maintain ventilation performance in compact duct layouts.

Suitable for

• Redirecting airflow in rectangular ventilation duct systems
• Fitting low-height or shallow mounting spaces
• Residential and commercial mechanical ventilation networks
• Connecting duct sections where a 45° deviation is needed

Key specifications

• Shape: 45° flat elbow for rectangular ducts
• Cross-section dimensions: 55 × 110 mm
• Construction: combined metal and plastic components
• Application: air distribution / ventilation
• Orientation: suitable for horizontal or vertical runs requiring a 45° change

How to use

Measure and mark the duct sections to ensure correct alignment before fitting the elbow into the rectangular duct run. Slide or fasten the elbow to the mating duct ends according to the chosen connection method (mechanical fastening, rivets, or duct tape as appropriate). Check that the joint is secure and that the airflow path is unobstructed; seal any gaps with suitable duct sealant or tape to maintain system airtightness. Ensure the elbow orientation corresponds to the desired airflow direction and that surrounding structures allow the chosen bend.

Usage recommendations

Use appropriate fixings and sealing materials compatible with metal and plastic surfaces. Avoid excessive bending forces during installation and verify clearances in tight spaces to prevent deformation. When integrating into an HVAC system, follow local ventilation standards and consider acoustic or airflow balancing measures if needed.