Model EI-445

Extruded Aluminum Louver
4" Deep - 45 Degree J-Blade BD-Intake

The EI-445 combination louver features stationary louver blades and an integral gravity operated backdraft damper to protect intake air openings in exterior walls. The EI-445 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: 4" deep x 0.081" thick (102 x 2) channel.
Blades: 45^o x 0.081" (2) thick J-style BD-intake.
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 120" (1219 x 3048)
                           Multiple Section: Unlimited

Ratings

Free Area: 7.9 ft² (0.73 m²)

Performance @ Beginning Point of Water Penetration
Free Area Velocity: 689 fpm (3.50 m/s)
Air Volume Delivered: 5396 cfm (2.55 m³/s)
Pressure Loss: 0.10 in. wg. (25 Pa)

Velocity @ 0.15 in. wg. Pressure Loss: 850 fpm (4.32 m/s)
Design Load: 30 psf