Aluminum line grille with 1 adjustable perforated panel – 500 mm – RAL 9005 + insulated plenum with airflow control damper

Aluminium linear grille with 1 adjustable pattern blade – 500 mm – RAL 9005 + insulated plenum with air volume control damper

The combination of the insulated plenum and the aluminium linear grille with a single adjustable pattern blade offers a complete solution for quiet, even air supply in spaces where comfortable, draught-free air distribution is required, such as offices, shops, restaurants and hotels. The linear grille is made from extruded aluminium; the plenum is constructed from galvanised steel with sound-absorbing insulation. Both components are precisely matched and function as a single unit: the plenum evenly distributes the supply air along the entire slot length of 500 mm, while the grille accurately directs the airflow via the adjustable deflector profile. Thanks to the Coanda effect, the air spreads along the ceiling without draughts, ensuring a comfortable indoor climate in the occupied zone.

Benefits and features

• Complete set, including fixing accessories: The plenum and linear grille are designed to work together and come supplied with the necessary fixing bracket and Allen screws.
• Silent operation through sound-absorbing insulation: The insulated plenum attenuates noise from the duct, minimising sound nuisance.
• Precisely adjustable airflow: The integrated air volume control damper enables accurate adjustment during commissioning.
• Draught-free air distribution via the Coanda effect: The linear grille directs the air along the ceiling, ventilating the occupied zone comfortably without direct air streams.

Installation and applications

The linear grille is mounted from below onto the plenum via the supplied galvanised fixing bracket. For connection, the air inlet deflector is rotated 90°, after which the grille is simply fixed from beneath onto the plenum. The plenum then connects to the ventilation duct via a circular connection. Due to its compact height, the set also fits into ceilings with limited free space. After installation, the deflectors of the linear grille can be manually adjusted for horizontal or vertical airflow direction. The set is suitable for offices, retail spaces, schools, restaurants, hotels and other commercial buildings.