The Model AAFL is an Adjustable Frame Aluminum Louver. It comes with a 2" flanged frame and the height is fixed. The width is adjustable and has end stops to help prevent separation of the blades. It is designed to protect the air intake or exhaust openings in the exterior walls of any building from rain and weather while still providing efficient airflow. The Aluminum finish is ready for you to paint in the field or leave as mill finish.
Performance (Tested in accordance to AMCA Standard 500):
Water penetration: Beginning point at .01 oz./sq. ft. is 766 FPM.
Free area: 6.74 sq. ft. for a 48" x 48" test size.
Pressure drop: see Submittal Dwg.
Frame: 4" deep x 2" flanged x .040 thick Aluminum.
Blades: J style, .040 thick Aluminum, 45 degree Adjustable width.
Construction: Tabbed and riveted frame.
Birdscreen: 1/2" flattened Aluminum mounted on interior.
Size chart: See Submittal Dwg.