A perfectly designed and made ventilation system should not have any dampers. Considering the fact that is rarely the case, we can choose from an entire range of dampers for round and rectangular ducts.
They close (sealing class 4), align and distribute air. The planes can be made of a single part (flush or perforated sheet) or be multi-planar.
The devices can be used for installing actuators and for isolating ducts with a max. 50 mm thick slats.
T-shaped dampers are perfectly suitable for use as an distributor for air intake into heat recovery units from ground heat exchangers.