Aluminum line grille with 4 adjustable perforated panels – 500 mm – RAL 9010 + insulated plenum with airflow control damper

Aluminium Linear Diffuser with 4 Adjustable Pattern Blades – 500 mm – RAL 9010 + 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, even air supply in spaces where comfortable and draught-free air distribution is required, 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 work as a single unit: the plenum evenly distributes the supply air over the entire 500 mm slot length, while the diffuser optimally distributes the airflow through four adjustable deflector profiles across the room. Featuring 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 draft, ensuring a comfortable indoor climate in the occupied zone.

Advantages and Features

• Complete set, including mounting hardware: The plenum and linear diffuser are designed to work together and come supplied with the necessary mounting bracket 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 airflow control damper enables accurate balancing during commissioning.
• 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.
• Maximum ventilation capacity: With four profiles, this linear diffuser is the most powerful design in the range, suitable for rooms 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 easily attached to the plenum from underneath. The plenum then connects to the ventilation duct via a round connection. Thanks to its compact depth, the set also fits into ceilings with limited clearance. After installation, the diffuser deflectors can be manually adjusted for horizontal or vertical airflow direction. This set is suitable for offices, retail spaces, schools, restaurants, hotels, and other commercial buildings.