Aluminum line grille with 1 adjustable perforated panel – 1000 mm – RAL 9016 + insulated plenum with airflow control damper

Aluminium Linear Diffuser with 1 Adjustable Pattern Blade – 1000 mm – RAL 9016 + Insulated Plenum with Airflow Control Damper

The combination of the insulated plenum and the aluminium linear diffuser with a single adjustable pattern blade forms a complete set for quiet, even air supply in spaces where comfortable, draught-free air distribution is desired, such as offices, retail stores, restaurants, and hotels. The linear diffuser is made from extruded aluminium; the plenum is constructed from galvanised steel with sound-absorbing insulation. Both components are perfectly matched and function as a unit: the plenum evenly distributes the supply air 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 flows smoothly along the ceiling without draughts, ensuring a comfortable indoor climate in the occupied zone.

Advantages and Features

• Complete set including fixings: The plenum and linear diffuser are designed to work together and are supplied with the necessary mounting bracket and hex screws.
• Quiet operation due to sound-absorbing insulation: The insulated plenum reduces noise from the ductwork, minimising sound disturbance.
• Precisely adjustable airflow: The built-in airflow control damper allows for accurate balancing during commissioning.
• Draught-free air distribution via Coanda effect: The linear diffuser directs the 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 using the included galvanised mounting bracket. For connection, the air inlet deflector is rotated 90°, after which the diffuser is easily fixed from underneath onto the plenum. The plenum then connects to the ventilation duct via a round connection. Thanks to the compact installation height, the set also fits into ceilings with limited free space. After installation, the diffuser deflectors can be manually adjusted to provide horizontal or vertical airflow direction. The set is suitable for use in offices, retail stores, schools, restaurants, hotels, and other commercial buildings.