Aluminum line grille with 4 adjustable perforated panels – 1500 mm – RAL 9010 + acoustically insulated plenum with airflow control damper

Aluminium Linear Diffuser with 4 Adjustable Pattern Blades – 1500 mm – RAL 9010 + Acoustically Insulated Plenum with Airflow Control Damper

The combination of the acoustically insulated plenum and the aluminium linear diffuser with four adjustable pattern blades forms a complete set for quiet, uniform air supply in spaces where a comfortable, draught-free air distribution is essential. Ideal for large office buildings, shopping centres, auditoriums, and other commercial projects with high ventilation demands. 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 seamlessly matched and function as one unit: the plenum evenly distributes the supply air along the entire 1500 mm slot length, while the diffuser optimally distributes the airflow through four adjustable deflector profiles. Featuring four slots, this diffuser combines the highest capacity in the range with the draught-free air pattern characteristic of the Econox system. Thanks to the Coanda effect, the air flows along the ceiling without draughts, ensuring a comfortable indoor climate within the occupied zone.

Advantages and Features

• Complete set including mounting hardware: The plenum and linear diffuser are designed to work together and are supplied with the necessary fixing bridge and Allen screws.
• Quiet operation due to sound-absorbing insulation: The acoustically insulated plenum reduces noise from the ductwork, minimising sound disturbance.
• Precisely adjustable airflow: The integrated airflow control damper allows exact balancing during commissioning.
• Draught-free air distribution via the Coanda effect: The diffuser directs airflow along the ceiling, ventilating the occupied zone comfortably without direct air jets.
• Maximum ventilation capacity: With four slots, this diffuser is the most powerful option in the series, suitable for spaces with the highest ventilation requirements.

Installation and Applications

The linear diffuser is mounted from below onto the plenum using the supplied galvanised fixing bridge. For connection, the air inlet deflector is rotated 90°, after which the diffuser is simply attached from below onto the plenum. The plenum then connects to the ventilation duct via a round outlet. 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 directions. This set is suitable for offices, retail stores, schools, restaurants, hotels, and other commercial buildings.