Model EFD-637

Extruded Aluminum Louver
6" Deep - 37-1/2 Degree Drainable Blade

The EFD-637 drainable blade louver is designed to prevent water penetration in non-wind driven rain applications by collecting water in frame and blade gutters and channeling it into downspouts and away from airflow paths. The EFD-637 is available in a wide array of anodized and painted finishes including custom color matching.

Standard Construction

Material: Mill finish 6063-T5 extruded aluminum.

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

Blades: 37-1/2^o x 0.081" (2) thick drainable style.

Screen: 1/2" x 0.063" (12.7 x 1.6) expanded and flattened aluminum.

Mullion: Visible.

Minimum Size: 4.5" x 8" (114 x 203)

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

Ratings

Free Area: 9.2 ft2 (0.85 m2)

Performance @ Beginning Point of Water Penetration

Free Area Velocity: 1113 fpm (5.65 m/s)

Air Volume Delivered: 10242 cfm (4.83 m³/s)

Pressure Loss: 0.15 in. wg. (37 Pa)

Velocity @ 0.15 in. wg. Pressure Loss: 1106 fpm (5.62 m/s)

Design Load: 30 psf