Model EX-637

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

The EX-637 louver features operable blades that allow positive shutoff protection of air intake and exhaust openings. The EX-637 is available in a wide array of anodized and painted finishes including custom color matching. These models are avilable with a variety of factory mounted electric or pneumatic actuators.

Standard Construction

Material: Mill finish 6063-T5 extruded aluminum.
Frame: 6" deep x 0.081" thick (152 x 2) channel.
Blades: 37-12^o x 0.081" (2) thick combination style
Screen: 1/2" x 0.063" (12.7 x 1.6) expanded and flattened aluminum.
Linkage: Center, exposed.
Low Leakage Seals: PVC blade edge.
Minimum Size: 12" x 12" (305 x 305)
Maximum Size:
Single Section: 72" x 120" (1828 x 3048) orr 120" x 72" (3048 x 1828)
Multiple Section: Unlimited

Ratings

Free Area: 51.3%
Performance at Beginning of Water Penetration
Free Area Velocity: 1231 fpm (6.26 m/s)
Air Volume Delivered: 10134 cfm (4.78 m³/s)
Pressure Loss: 0.16 in. wg.
Velocity@ 0.15 in. wg. Pressure Loss: 1201 fpm (6.10 m/s)
Design Load: 30 psf