 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.
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| 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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