Model EFD-637-MD

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

The EFD-637-MD is engineered and tested to withstand extreme loads, debris impact and cyclic fatigue failure associated with the severe weather effects of hurricanes (Miami-Dade County approval #21-1122.02). Constructed from 6063-T5 extruded aluminum the EFD-637-MD’s design accommodates installations of unlimited width or height and single section assemblies up to 48" × 144" (1219 × 3658). Specially designed water resistant seam covers further enhance performance and aesthetics of this industry leading product.

Standard Construction

Material: Mill finish 6063-T5 extruded aluminum.

Frames: 6" deep x 0.125" thick (152 x 3) channel.

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

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

Mullion: Visible.

Minimum Size: 12" x 12" (305 x 305)

Maximum Size:
Single Section: 48" x 144" (1219 x 3658) 
Multiple Section: Unlimited width x 144" (3658) or 48" (1219) x unlimited height

Ratings

Free Area: 8.7 ft² (0.81 m²)

Performance @ Beginning Point of Water Penetration

Free Area Velocity: 1100 fpm (5.59 m/s)

Air Volume Delivered: 9600 cfm (4.53 m³/s)

Pressure Loss: 0.14 in. wg. (35 Pa)

Velocity @ 0.15 in. wg. Pressure Loss: 1139 fpm (5.78 m/s)

Design Load: 150 psf

AMCA Certified for Water Penetration and Air Performance
Miami-Dade County approved: NOA No. 21-1122.02
Florida Building Code approved (2020-FBC): No. FL12655