WPL grille is a rectangular ventilation grille, weather resistant and is used for introduction or evacuation of air.
It is intended for installation on the exterior walls of buildings.
Veff [m/s] - The speed of air in the grille
∆Pt asp [Pa] - Pressure loss at extraction
∆Pt ref [Pa] - Pressure loss at discharge
Ak [m²] - The free surface
For more sizes see the Technical Data Sheet (bottom of the page).
The grille can be delivered with a connecting plenum to the circular duct.
Adapter (plenum box)
The adapter is made of Z140 galvanized sheet metal and is equipped with lugs for mounting.
On request, the plenum can be insulated with 6 mm thick elastomeric rubber.
The insulation is arranged as standard on the inside of the plenum. On request, the insulation can be positioned on the outside.
Fixing the grille is done through of mounting screws.