AWENTA duct elbow KO125-23/45 45° round, Ø125 mm

AWENTA KO125-23/45 is a 45° duct elbow for round ventilation systems with a nominal diameter of 125 mm. This metal fitting is designed to redirect airflow between circular ducts while preserving airtight connections and consistent cross-sectional area. It is suitable for use in residential and commercial HVAC and ventilation installations where a smooth 45-degree change of direction is required.

Advantages

The elbow provides a compact, space-saving solution for changing duct direction with minimal airflow disturbance and reduced pressure loss compared with sharp-angle joints. Constructed from corrosion-resistant metal, the fitting ensures mechanical stability and long service life under normal ventilation conditions. Designed for simple installation, the product mates with standard Ø125 mm round ducts and contributes to maintaining airtightness in the duct run.

Suitable for

• Residential ventilation systems requiring a 45° bend at Ø125 mm
• Commercial HVAC duct runs with limited installation space
• Bathroom and kitchen exhaust ducts
• Supply and extract ventilation where directional change is needed

Key specifications

• Angle: 45° bend
• Shape: round elbow
• Nominal diameter: 125 mm
• Material: metal (corrosion-resistant design)
• Connection: compatible with circular ducting of the same nominal diameter
• Application: indoor HVAC and ventilation systems

How to use

Connect the AWENTA 45° elbow between two sections of Ø125 mm round ducting, ensuring ends are fully engaged for an airtight joint. Secure connections with appropriate clamps or screws and seal joints with duct tape or sealant where required by the installation. Position the elbow so the bend follows the intended airflow direction and avoid sharp kinks or excessive compression of adjacent ducts. Inspect the assembled duct run for leaks and mechanical stability before commissioning the ventilation system.

Usage recommendations

For optimal airflow and reduced pressure loss, use gentle transitions and avoid combining multiple sharp bends in a short duct run. Where possible, pair the 45° elbow with smooth-radius fittings and ensure regular maintenance access to points with directional changes.