Circular conduits

> They are privileged whenever allowed by ceiling heights.





Semi-circular conduits
> They are laid flat against the ceiling using a system of PVC profiles.
> They are mainly used in comfort air-conditioning.
> They may be recommended when ceiling heights are limited. The saving in space when compared with circular ducting with an equivalent airflow is evaluated at 40%






Quarter-circular conduits
> These conduits are fixed at ceiling / wall junction points when fitted horizontally or at wall corners when fitted vertically.

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