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Pottorff > Louvers and Penthouses > Louvers and Architectural > Formed Metal > SBI-445

Model SBI-445

Galvannealed Steel Louver
4" Deep - 45 Degree J-Blade BD-Intake

The SBI-445 combination louver features stationary louver blades and an integral gravity operated backdraft damper to protect intake air openings in exterior walls. The SBI-445 is available in a wide array of painted finishes including custom color matching.

 

SBI-445 4" Deep - 45 Degree J-Blade BD-Intake

Standard Construction

Material: Galvannealed steel.

Frames: 4" deep x 20 ga. thick (102 x 1) channel.

Blades: 45o x 20 ga. (1) 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: 36" x 96" (914 x 2438)
Multiple Section: Unlimited

 

Ratings

Free Area: 7.5 ft2 (0.70 m2)

 

Performance @ Beginning Point of Water Penetration

Free Area Velocity: 775 fpm (3.94 m/s)

Air Volume Delivered: 5813 cfm (2.75 m3/s)

Pressure Loss: 0.14 in. wg. (35 Pa)

 

Velocity @ 0.15 in. wg. Pressure Loss: 811 fpm (4.12 m/s)

Design Load: 30 psf

 

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