SpiroFlex 140 is a flexible aluminum duct with a nominal diameter of 140 mm and a length of 2.70 m. Intended for air ventilation and exhaust routing in residential and light commercial installations, this duct combines lightweight construction and corrosion-resistant material to facilitate connections between fans, vents, and existing ductwork runs. Its spiral-formed profile provides bendability while maintaining cross-sectional integrity for consistent airflow.
Advantages
The flexible aluminum construction ensures resistance to corrosion and reduces weight compared with rigid metal alternatives, simplifying handling and installation. The spiral profile allows easy bending and positioning without significant collapse, and the smooth internal surface supports efficient airflow and reduces noise. The product's length and 140 mm nominal diameter suit many standard ventilation components, enabling straightforward inline connections and reducing the need for additional adapters.
Suitable for
- Connecting domestic bathroom and kitchen exhaust fans to duct runs
- Ventilation branch runs in light commercial spaces
- Temporary or retrofit installations where flexible routing is needed
- Routing air between vents and rigid duct sections in renovation projects
Key specifications
- Nominal internal diameter: 140 mm
- Length: 2.70 m
- Material: aluminum (flexible, spiral-formed)
- Construction: corrosion-resistant, lightweight
- Suitable for low- to medium-pressure ventilation systems
How to use
Measure and cut the flexible duct to the required length using appropriate tools, ensuring a clean, square end for attachment. Fit the duct onto the fan outlet, grille or rigid duct collar and secure with a clamp or suitable fastening method to ensure an airtight connection. Avoid sharp kinks and maintain gradual bends to preserve airflow efficiency. If passing through walls or panels, use suitable wall plates or sleeves to protect the duct and comply with building regulations.
Usage recommendations
For best performance, use the SpiroFlex 140 in systems with gentle bends and limited total duct length; minimize the number of tight turns and avoid compressing the duct. Inspect fittings and clamps periodically for tightness and signs of wear, and replace the duct if significant damage or deformation is present. Follow local ventilation codes regarding insulation, fire-stopping, and sound attenuation where required.
