Semi-Rigid Aluminium Ducting

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Semi-Rigid Aluminium Ducting

Semi-Rigid Aluminium Ducting Collection where flexibility meets strength in the world of ventilation and air distribution. Designed to excel in a variety of environments, these ducts combine the benefits of semi-rigid construction with the durability of aluminium, offering a superior solution for your air management needs.

Crafted with precision and innovation, our Semi-Rigid Aluminium Ducting Collection is a testament to modern engineering. The semi-rigid design strikes a balance between flexibility and stability, allowing for easy installation while maintaining shape integrity for efficient airflow.

What is semi-rigid aluminium ducting?
Flexible aluminium ducting that holds its shape once positioned - you bend it to the route you need and it stays there, rather than needing supporting along its length. It is used in heating, ventilation and air conditioning work, and for moderate-temperature extraction.

What sizes and lengths do you stock?
76mm, 102mm, 125mm and 150mm internal diameter, in 2 and 4 metre lengths. Order by internal diameter to match the spigot or outlet it slides over. Those four sizes cover the great majority of domestic and light commercial HVAC and extraction work.

What temperature will it take?
-30C to +150C, and it is manufactured to EN 13501-1, the European fire classification standard for building materials. That temperature range is well beyond PVC or polyurethane ducting, which is the main reason to choose it over a cheaper plastic duct.

Where is it typically used?
HVAC runs, cooker hood and bathroom extraction, warm air distribution, and vehicle and workshop ventilation where the air is warm but not hot. For genuinely hot air - engine exhaust, process air above 150C - you need silicone glass fibre ducting at -70C to +310C instead.

How do I cut it?
Snips or tin snips, cutting carefully round the profile. Wear gloves - cut aluminium ducting leaves sharp edges that will find your hands. Dress the cut end before fitting so it cannot cut into a seal or catch on anything during installation.

How do I connect it?
Slide it over the spigot and secure with a worm drive clip or a ducting clamp, and seal the joint with duct tape if the system needs to be airtight. Because it is semi-rigid it holds position at the joint while you fit the clamp, which makes installation considerably easier than with a floppy duct.

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