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  Airline Products Co.   Louvers, Dampers, & Penthouses  

Extruded Stationary Aluminum Louvers

   

Louvers, Dampers, & Penthouses

Extruded Stationary Aluminum Louvers

Applications

For applications where high free area for ventilation is required, Airline's different combinations of depth, blade angle and style, mullion type, and thickness permit the selection of a model to fit most applications.

Airline's visible mullion design is the mating interlock type. The opposing mullion sections slide together and interlock, then are fastened together in the field with stainless steel screws to form a strong mullion unit.

The concealed mullion consists of heavy gauge blade braces which lock into extruded receptacles on the underside of the blades and are mechanically fastened or welded to structural angles concealed on the interior side of the louver. Louvers are shipped in panels with head, sill and all blades attached to the interior angles. Field erection is easily accomplished using holes prepunched in the angles to fasten the panels together.

 

 

MODEL

XB-4

XB4-5

XC-4

XB-6
Blade Type

Baffle

Baffle

Straight

Baffle
Frame Depth

4"

4"

4"

6"
Frame Thickness

.125" 

.125"

.125"

.125"
Blade Thickness

.018"

.081"

.081"

.100"
Blade Angle

45º

45º

45º

45º
Blade Spacing

4"

5"

5"

7"
Free Area (48" x 48") Sq. Ft. (%) 

6.69 (42%)

7.20 (45%)

6.57 (41%)

6.69 (42%)
Velocity @ Beginning Point of Water Penetration (ft./min.)*†

925

910

1013

1080
Pressure Drop @ Max. Intake Velocity (in. wg.)

.13

.14

.16

.17
Max. Intake Volume Flow Rate, 4' x 4' Unit (cfm)

6188

6552

6655

7225
Exhaust Velocity @ 0.15" wg. Pressure Drop (ft./min.)

950

945

925

897
Exhaust Volume Flow Rate @

6356

6804

6077

6000

*AMCA defines the beginning point of water penetration to be .01 oz./ft.2 free area.
†When designing intake louvers, this should be the maximum velocity.
Also available in .125" blade thickness

Louver Sections & Details

 

Flange frame available on all four sides of louver -- specify by inserting "F" following "X" in the model number.

Suggested Specification

Furnish and install, where indicated on the drawings, Model XB4-5 Stationary Extruded Louver, as manufactured by Airline Products Company, Hagerstown, Maryland. Louvers shall be 4" deep and fabricated from .081" thick extruded aluminum, alloy 6063-T52. Assembly of members shall be by welding or with stainless steel sheet metal fasteners. Blades shall have an integral baffle to resist water penetration and be spaced at 5" on an angle of 45°.

Louvers shall meet the following criteria for testing and performance:

A 48" x 48" louver shall have a minimum free area of 7.20 ft2 (45%).

The free area velocity at the beginning point of water penetration shall be 910 fpm.

The pressure drop at this velocity shall not exceed .14" water gauge.

At an exhaust free area velocity of 945 fpm, pressure drop shall not exceed .15" water gauge.

 



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