SpiroFlex elbow 45° DN 160 — SpiroFlex Kolano 45° DN 160

SpiroFlex elbow 45° DN 160 is a 45-degree round duct elbow designed to change airflow direction in spiral ventilation and air-conditioning systems. Manufactured by SpiroFlex, this fitting is intended for use with ducts that have a nominal diameter of 160 mm and provides a compact, angled transition that helps route ducts in confined spaces while maintaining a smooth internal profile for airflow.

Advantages

The 45° angle reduces resistance compared with sharper bends, supporting efficient airflow and lower pressure loss. Its round spiral construction ensures consistent internal geometry, which contributes to stable flow characteristics and easier cleaning. The component is dimensioned for quick connection to DN 160 spiral ducts and supports space-efficient layouts where straight runs must be redirected.

Suitable for

• Residential ventilation systems with 160 mm round ducts
• Commercial HVAC installations requiring compact directional changes
• Light-industrial air distribution where space constraints exist
• Retrofit projects that replace or re-route existing spiral ductwork

Key specifications

• Nominal diameter: 160 mm (DN 160)
• Angle: 45 degrees
• Shape: round spiral elbow
• Material: metal suitable for ventilation ductwork (corrosion-resistant finish as standard for HVAC fittings)
• Connection type: designed for slip-fit or spiral duct coupling methods
• Application: supply, extract, or recirculation air in ventilation and air-conditioning systems

How to use

Install the SpiroFlex elbow by aligning it with the mating DN 160 spiral duct ends and engaging the spiral or slip-fit connection as appropriate for the system. Ensure joints are secured with the recommended clamps, screws, or sealants specified for spiral ductwork to maintain airtightness. Position the elbow so the curvature follows the intended airflow direction and avoid excessive compression or deformation of the fitting during assembly. Verify clearances and support the duct run near the elbow to prevent sagging and to preserve the designed angle.

Usage recommendations

For optimal performance, combine this 45° elbow with straight duct lengths or gentle transitions rather than multiple sharp bends. Use appropriate sealing and mechanical fixation to minimize leakage and noise. Periodically inspect the elbow and adjacent duct connections for signs of loosening, corrosion, or debris accumulation and clean according to the system maintenance schedule.