Vibro-Acoustics - Model ALA -Airfoil Blade Acoustic Louvers

Acoustical Performance
Transmission Loss {TL) determined by ASTM E90. Noise Reduction (NR) may be determined as: NR-TLi6. Insertion Loss (IL) may be estimated using: IL~TL»2 for all bands ol interest.

Aerodynamic Performance
Free Area and Pressure Drop determined by AMCA Standard BOO L for free inlet and outlet under ideal conditions. System effects due to ducted conditions, low height or obstructions may increase pressure drop by a factor of 1.5 or higher.

Dimensions
Maximum single piece size: 60` x 120"; larger louver sizes will be multiple pieces. Minimum height: 12". Louver with less than 30" high, will require assistance with product selection to minimize risk of higher pressure drop values.