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Pottorff > Louvers and Penthouses > Louvers and Architectural > Acoustical > EAA-645

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.


EAA-645 6" Deep - 45 Degree Airfoil Blade

Standard Construction

Material: Mill finish 6063-T5 extruded aluminum.

Frames: 6" deep x 0.081" thick (152 x 2) channel.

Blades: 45o 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.

Minimum Size: 12" x 16" (305 x 406)

Maximum Size:
Single Section: 60" x 120" (1524 x 3048)
Multiple Section: Unlimited


Free Area: 4.0 ft2 (0.37 m2)


Performance @ Beginning Point of Water Penetration

Free Area Velocity: 1137 fpm (5.78 m/s)

Air Volume Delivered: 4541 cfm (2.14 m3/s)

Pressure Loss: 0.06 in. wg. (16 Pa)


Velocity @ 0.15 in. wg. Pressure Loss: 1750 fpm (8.89 m/s)

Design Load: 30 psf


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