Aluminum line grille with 3 adjustable perforated panels – 2000 mm – RAL 9016 + insulated plenum with airflow control damper

Aluminium linear grille with 3 adjustable pattern blades – 2000 mm – RAL 9016 + insulated plenum with airflow control damper

The combination of the insulated plenum and aluminium linear grille with three adjustable pattern blades forms a complete set for quiet, uniform air supply in spaces where comfortable, draught-free air distribution is desired, such as larger offices, retail areas, restaurants, and commercial buildings. The linear grille is made of extruded aluminium, while the plenum is constructed from galvanised steel with sound-absorbing insulation. Both components are matched to work as a single unit: the plenum evenly distributes the supply air along the entire slot length of 2000 mm, while the linear grille precisely spreads the airflow across the slot width via three adjustable deflector profiles. The three-slot design delivers a high volume flow while maintaining excellent air distribution and low noise levels. Thanks to the Coanda effect, air disperses along the ceiling without draughts, providing 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.
• Quiet operation due to sound-absorbing insulation: The insulated plenum dampens noise from the duct, minimising sound disturbances.
• Precisely adjustable airflow: The built-in airflow control damper allows for accurate adjustment during the commissioning phase.
• Draught-free air distribution via Coanda effect: The linear grille directs air along the ceiling, ensuring the occupied zone is ventilated comfortably without direct air jets.
• High airflow with uniform distribution: Three profiles ensure an even air supply along the entire slot length, even at higher volume flows.

Installation and applications

The linear grille is mounted from underneath onto the plenum via a supplied galvanised fixing bracket. For connection, the 90° air inlet deflector is rotated before the grille is simply attached from below onto the plenum. The plenum then connects to the ventilation duct via a round collar. Due to the compact installation height, the set is suitable for ceilings with limited free space. After installation, the deflectors of the linear grille can be manually adjusted for horizontal or vertical air discharge direction. The set is suitable for offices, retail, schools, restaurants, hotels, and other commercial buildings.