Aluminum line grille with 1 adjustable perforated panel – 2000 mm – RAL 9016 + insulated plenum with airflow control damper

Aluminium Linear Diffuser with 1 Adjustable Pattern Blade – 2000 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, uniform air supply in spaces where comfortable and draught-free air distribution is desired, such as offices, retail stores, restaurants, and hotels. The linear diffuser is made of extruded aluminium; the plenum is constructed from galvanised steel with sound-absorbing insulation. Both components are perfectly matched and function as a single unit: the plenum distributes the supply air evenly along the entire 2000 mm slot length, while the diffuser precisely directs the airflow through the adjustable deflector blade. 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 mounting hardware: The plenum and linear diffuser are designed to work together and come supplied with the necessary galvanised mounting bracket and hexagon screws.
• Quiet operation with sound-absorbing insulation: The insulated plenum reduces noise from the ductwork, minimising sound disturbance.
• Precisely adjustable airflow: The integrated airflow control damper enables exact balancing during the commissioning phase.
• Draught-free air distribution using Coanda effect: The diffuser directs air along the ceiling, ventilating the occupied zone comfortably without direct air jets.

Installation and Applications

The linear diffuser is mounted underneath the plenum via the supplied galvanised mounting bracket. For connection, the air inlet deflector is rotated 90°, after which the diffuser is simply attached from below to the plenum. The plenum then connects to the ventilation duct via a circular connection. Due to its compact height, the set also fits ceilings with limited free space. After installation, the diffuser deflectors are manually adjustable for horizontal or vertical airflow direction. This set is suitable for use in offices, retail stores, schools, restaurants, hotels, and other commercial buildings.