Aluminum line grille with 1 adjustable perforated panel – 1000 mm – RAL 9010 + insulated plenum with airflow control damper

Aluminium Linear Diffuser with 1 Adjustable Pattern Blade – 1000 mm – RAL 9010 + Insulated Plenum with Airflow Control Damper

The combination of the insulated plenum and aluminium linear diffuser with one adjustable pattern blade forms a complete set for quiet, even air supply in spaces where comfortable and draught-free air distribution is desired, such as offices, shops, restaurants, and hotels. The linear diffuser is made from extruded aluminium in RAL 9010; the plenum is constructed from galvanised steel with sound-absorbing insulation. Both components are coordinated and function as a single unit: the plenum distributes the supply air evenly across the entire 1000 mm slot length, while the diffuser precisely 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.

Advantages and Features

• Complete set including mounting accessories: The plenum and linear diffuser are designed to work together and are delivered with the necessary mounting bracket and hex screws.
• Quiet operation due to sound-absorbing insulation: The insulated plenum dampens noise from the ductwork, minimising sound disturbance.
• Precisely adjustable airflow: The built-in airflow control damper allows for fine-tuning during the commissioning phase.
• Draught-free air distribution via the Coanda effect: The linear diffuser directs air along the ceiling, ventilating the occupied zone comfortably without direct air jets.

Installation and Applications

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