Adapter (plenum box) made of Z140 galvanized steel sheet as a mixing element, air distribution and connection between the grille/diffuser and the duct.
The plenum is designed to distribute and balance airflow before diffusion, through the terminals (grilles and diffuser).
The adapter is made with one or more connections (spigots) for connection to the duct.
The spigot is positioned opposite the grille (vertical connection) or sideways (horizontal connection), according to the drawings.
The plenum is provided with suspension elements (lugs) and bead roll on the spigot, for easy fixing of the flexible duct.
A – Plenum model for rectangular or square grilles/diffusers
B – Plenum model for circular grilles/diffusers
C – Plenum model for linear diffusers
On request, plenums can be made with 1,2,3 or more connection for circular duct.
The plenums are equipped, as standard, with suspension lugs.
Vertical or horizontal connection
The perforated damper is mounted on the adapter nozzle and has the role of balancing the air flow.
The manually or electrically operated control damper (with servomotor) can be mounted on the plenum box connection.
Bracket ("U" system)
The bracket is used for mounting/fixing the plenum diffusor.
The fixing of the plenum in the ceiling is done with the help of the suspension elements (lugs).
Suspended in the ceiling