. Catalog Diffusers Lattices X-GRILLE COVER


Wester_m 15.03.2024


The new X-GRILLE Cover series ventilation grilles, made of high-quality aluminum, combine functionality and attractive design; used for installation in walls, window sills or rectangular air ducts.

Standard sizes 225 × 125 – 1225 × 525 mm
Air flow level 16 – 2554 l/s or 58 – 9194 m³/h
Energy efficient and improved acoustic air distribution
Symmetrical profile slats for two-way airflow
Uniformity and ease of adjustment thanks to hidden slat connections
Improved hidden screw mount
Ideal for sectional arrangement
Easily replaceable outer plates allow for stylish two-tone designs
Using standard fastening tools
Convenient replacement of grilles thanks to standard mounting sizes

Additional equipment and accessories

Mounting frame
Add. components for balancing air flow and air flow control
Hidden screw fastening
Spring clamp fastening


Ventilation grilles are air distribution devices for ventilation and air conditioning systems for supply and exhaust air. They direct supply air into the room. Ventilation grilles with adjustable slats allow you to change the direction of air flow if necessary. The result is a mixing of air flows in comfort zones and industrial areas, with good distribution of air currents throughout the room.

The ejection level decreases as the air flow decreases, i.e. The air flow speed decreases as the distance from the grille increases. The distance at which the air flow speed reaches a certain value, e.g. 0.2 m/s is called projection distance. The supply air jet from wall grilles installed close to the ceiling reaches a greater projection distance than the free air jet (from a grill installed far from the ceiling). Single grilles, grille groups and sections achieve different projection distances.

In cooling mode, it is necessary to take into account the deviation of the jet in relation to the working area, which increases with an increase in the temperature difference between the supply air and the air in the room and a decrease in the flow rate. In heating mode, the supply air stream is deflected towards the ceiling. This does not have a negative effect on the air flow rate in the work area, but may affect the overall ventilation of the room.

① Outer frame
② Longitudinal slats
③ Center pillar

Consultation / Order

Leave a request for consultation

Please enable JavaScript in your browser to complete this form.
Please enable JavaScript in your browser to complete this form.