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Pottorff > Louvers and Penthouses > Louvers and Penthouses > Formed Metal > SBE-445

Model SBE-445

Galvannealed Steel Exhaust
4" Deep - 45 Degree J-Blade BD-Exhaust

The SBE-445 combination blade louver features stationary louver blades and an integral gavity operated backdraft damper to provide exhaust air openings in exterior walls. The SBE-445 is available in an array of painted finishes including custom color matching.

SBE-445 4" Deep - 45 Degree J-Blade BD-Exhaust

Standard Construction

Material: Galvannealed steel.

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

Blades: 45o x 20 ga. (1) tthick J-style BD exhaust.

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: 0.13 in. wg. (32 Pa)

 

Velocity @ 0.15 in. wg. Pressure Loss: 840 fpm (4.26 m/s)

Design Load: 30 psf

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