Aluminum line grille with 1 adjustable perforated panel – 1500 mm – RAL 9005 + insulated plenum with airflow control damper

Aluminium linear grille with 1 adjustable pattern blade – 1500 mm – RAL 9005 + insulated plenum with air volume control damper

The combination of the insulated plenum and the aluminium linear grille with one adjustable pattern blade creates a complete solution for quiet, even air supply in spaces where comfortable and draught-free air distribution is desired, such as offices, retail stores, restaurants, and hotels. The linear grille is made of 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 1500 mm slot length, while the grille accurately directs the airflow through the adjustable deflector profile. Thanks to the Coanda effect, the air spreads along the ceiling without drafts, ensuring a comfortable indoor climate in the occupied zone.

Benefits and features

• Complete set including mounting accessories: The plenum and linear grille are designed to work together and are supplied with the necessary mounting bracket and Allen screws.
• Quiet operation thanks to sound-absorbing insulation: The insulated plenum dampens noise from the ductwork, minimising sound disturbance.
• Precisely adjustable airflow: The integrated air volume control damper allows exact adjustment during the commissioning phase.
• Draught-free air distribution via Coanda effect: The linear grille directs air along the ceiling, ventilating the occupied zone comfortably without direct air jets.

Installation and applications

The linear grille is mounted from below onto the plenum via the supplied galvanised mounting bracket. For connection, the air inlet deflector is rotated by 90°, after which the grille is easily attached from below to the plenum. The plenum then connects to the ventilation duct via a round connection. Thanks to its compact build height, the set also fits into ceilings with limited clearance. After installation, the deflectors of the linear grille can be manually adjusted for horizontal or vertical airflow direction. The set is suitable for use in offices, shops, schools, restaurants, hotels, and other commercial buildings.