Aluminum line grille with 4 adjustable perforated panels – 500 mm – RAL 9005 + insulated plenum with airflow control damper

Aluminium Linear Diffuser with 4 Adjustable Pattern Blades – 500 mm – RAL 9005 + Insulated Plenum with Airflow Control Damper

The combination of the insulated plenum and the aluminium linear diffuser with four adjustable pattern blades forms a complete set for quiet, uniform air supply in spaces where comfortable, draught-free air distribution is desired, such as large office buildings, shopping centres, auditoriums, and other commercial projects with high ventilation demands. The linear diffuser is made from extruded aluminium in RAL 9005; the plenum is manufactured from galvanised steel with sound-absorbing insulation. Both components are perfectly matched and function as a single unit: the plenum evenly distributes the supply air across the full 500 mm slot length, while the diffuser optimally disperses the airflow through four adjustable deflector profiles throughout the room. With four slots, this linear diffuser combines the highest capacity in the range with the draught-free air distribution characteristic of the Econox system. Thanks to the Coanda effect, the air flows 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 diffuser are designed to work seamlessly together and are supplied with the required mounting brackets and hex screws.
• Quiet operation through sound-absorbing insulation: The insulated plenum attenuates noise from the ductwork, minimising sound disturbance.
• Precisely adjustable airflow: The integrated air volume control damper allows for accurate adjustment during commissioning.
• Draught-free air distribution via the Coanda effect: The diffuser directs airflow along the ceiling, providing comfortable ventilation in the occupied zone without direct air jets.
• Maximum ventilation capacity: With four profiles, this linear diffuser is the most powerful version in the range, 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 mounting bracket. For connection, the air inlet deflector is rotated 90°, after which the diffuser is simply attached to the plenum from underneath. The plenum then connects via a round connection to the ventilation duct. Thanks to its compact installation height, the set also fits into ceilings with limited free space. After installation, the diffuser deflectors are manually adjustable to achieve horizontal or vertical airflow direction. This set is suitable for offices, retail stores, schools, restaurants, hotels, and other commercial buildings.