Acoustical louvers are multi-purpose louvers that can be used to permit the flow of air while providing excellent sound attenuation and protect
the environment from noise pollution. These acoustical louvers are available with storm-resistant blades, standard blades and attractive airfoil
designs in 6-inch, 8-inch or 12-inch depths. Sound ratings are available from tests conducted by Riverbank Acoustical Laboratories, Geneva,
IL, for most models and comply with the following standards: "Recommended Practice for Laboratory Measurement of Airborne Sound
Transmission Loss of Building Partitions," ASTM Designation E90-75, and "Standard Classification for Determination of Sound Transmission
Class," ASTM Designation E413-73.
Industrial Louvers, Inc., certifies that the Models 537-SXP and 258 shown hereon are licensed to bear the AMCA Seal. The ratings
shown are based on tests and procedures performed in accordance with AMCA Publication 511 and comply with the requirements of
the AMCA Certified Ratings Program. The AMCA Certified Ratings Seal applies to air performance ratings and water penetration
ratings.
MODEL |
MATERIAL |
BLADE THICKNESS |
FRAME THICKNESS |
LOUVER DEPTH |
FREE AREA 4'x4' LOUVER |
680-SR |
Extruded Aluminum |
Blade .125"
& Perf. .032" |
.125" |
6" |
6 sq.ft.
(37.5%) |
680-A |
Formed Aluminum |
Blade .080"
& Perf. .032" |
.080" |
6" |
4.74 sq.ft.
(30%) |
880-A |
Formed Aluminum |
Blade .080"
& Perf. .032" |
.080" |
8" |
4.52 sq.ft.
(28%) |
1280-A |
Formed Aluminum |
Blade .125"
& Perf. .032" |
.080" |
12" |
4.25 sq.ft.
(27%) |
Water penetration @ .01 oz is 986 FPM. Static pressure drop W.G." is .15" @ 1000 FPM. |
1280-AA |
Formed Aluminum |
Blade .125"
& Perf. .032" |
.080" |
12" |
4.61 sq.ft.
(29%) |
Water penetration @ .01 oz is 1029 FPM. Static pressure drop W.G." is .15" @ 1900 FPM. |
1280-AAXP |
Formed Aluminum |
Blade .125"
& Perf. .032" |
.080" |
12" |
6.18 sq.ft.
(39%) |
Water penetration @ .01 oz is 706 FPM. Static pressure drop W.G." is .15" @ 1246 FPM. |
