Double deflection Grilles are generally used in walls for supply / return HVAC applications .
The Grille frame and blades are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity. Grilles have two sets of parallel aerofoil blades with one set mounted vertically on the front and other set horizontally at the rear. Frame is separated from the aerofoil deflection blades by nylon bushings. This method of assembly ensures quiet, smooth and rattle free operation. Deflection blades can be adjusted manually and individually, to provide air deflection in both horizontal and vertical planes. Grilles are rigidly fixed with opposed blade damper by grippers. Damper blade is screw operated from the face opening. Foam gasket is sealed around the back of the frame as option to avoid air leakage.