Aluminum line grille with 4 adjustable perforated panels – 1000 mm – RAL 9010 + acoustically insulated plenum with airflow control damper

Aluminium Linear Diffuser with 4 Adjustable Pattern Blades – 1000 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 system for quiet, even air supply in spaces where comfortable and draught-free airflow distribution is desired, such as large office buildings, shopping centres, auditoriums, and other commercial projects with high ventilation demands. The linear diffuser is made of extruded aluminium in RAL 9010; the plenum is constructed from galvanised steel with sound-absorbing insulation. Both components are perfectly matched and function as one unit: the plenum evenly distributes the supply air across the full slot length of 1000 mm, while the linear diffuser optimally directs the airflow through four adjustable deflector profiles. With four slots, this linear diffuser combines the highest capacity in the range with the draught-free airflow distribution characteristic of the Econox system. 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 mounting hardware: The plenum and linear diffuser are designed to work together and come with the required mounting bracket and hex screws.
• Quiet operation due to sound-absorbing insulation: The acoustically insulated plenum reduces noise from the ductwork while minimising audible disturbance.
• Precisely adjustable airflow: The integrated airflow control damper allows for accurate regulation during the commissioning phase.
• Draught-free air distribution via Coanda effect: The linear diffuser directs air along the ceiling, ventilating the occupied space comfortably without direct air jets.
• Maximum ventilation capacity: With four profiles, this linear diffuser offers the highest performance in the range, suitable for spaces with the greatest ventilation requirements.

Installation and Applications

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