Model EAA-645

Acoustical Louver
6" Deep - 45 Degree Airfoil Blade

The EAA-645 airfoil blade acoustical louver provides low static pressure loss and reliable noise reduction over a wide range of frequencies. The EAA-645 is available in a wide array of finishes including custom color matching and is ideally suited for intake or exhaust application on standby generator enclosures.

Standard Construction

Material: Mill finish 6063-T5 extruded aluminim.
Frames: 6" deep x 0.081" thick (152 x 2) channel.
Blades: 45^o x 0.081" (2) thick J-style with a 26 ga. (0.55) thick perforated backing packed with noncombustible insulating material.
Screen: 1/2" x 0.063" (12.7 x 1.6) expanded and flattened aluminum.
Screen Frame: Removable.
Mullion: Visible.
Minimum Size: 12" x 12" (305 x 305)
Maximum Size: Single Section: 60" x 120" (1524 x 3048)
                           Multiple Section: Unlimited

Ratings

Free Area: 4.8 ft² (0.45 m²)

Performance @ Beginning Point of Water Penetration
Free Area Velocity: 980 fpm (4.98 m/s)
Air Volume Delivered: 4704 cfm (2.22 m³/s)
Pressure Loss: 0.10 in. wg. (25 Pa)

Velocity @ 0.15 in. wg. Pressure Loss: 1200 fpm (6.10 m/s)
Design Load: 30 psf