 Extruded Drainable
Blade Louvers
Applications
Airline offers the designer a range of depths and blade angles in
stationary blade drainable louvers. These models are designed for applications where
minimum water penetration and high free area are required. The 45º model has a front
gutter to catch falling water, draining it away through channels in the jambs. For extra
protection against storm conditions, the 35 models have a center water baffle in addition
to the front gutter.
These models are also available with a concealed mullion design. To
specify, use a prefix "C" on the model number.
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| MODEL |
XWD-4 |
XWD4-45 |
XWD-6 |
| Blade Type |
Drainable |
Drainable |
Drainable |
| Frame Depth |
4" |
4" |
6" |
| Frame Thickness |
.125" |
.125" |
.125" |
| Blade Thickness |
.018" |
.081" |
.081" |
| Blade Angle |
35º |
45º |
35º |
| Blade Spacing |
2-1/2" |
4" |
3-1/2" |
| Free Area (48" x 48")
Sq. Ft. (%) |
6.66 (42%) |
7.54 (47%) |
8.13 (51%) |
| Velocity @ Beginning Point of
Water Penetration (ft./min.)*† |
1195 |
740 |
1075 |
| Pressure Drop @ Max. Intake
Velocity (in. wg.) |
.16 |
.07 |
.12 |
| Max. Intake Volume Flow Rate, 4'
x 4' Unit (cfm)7959 |
8152 |
5580 |
8740 |
| Exhaust Velocity @ 0.15" wg.
Pressure Drop (ft./min.) |
1046 |
1012 |
1050 |
| Exhaust Volume Flow Rate @
0.15" wg., 4' x 4' Unit (cfm) |
6963 |
7632 |
8537 |
*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.
Louver Sections & Details
Suggested Specification
Furnish and install, where indicated on the drawings,
Model XWD-6 Stationary Extruded Drainable Louver, as manufactured by Airline Products
Company, Hagerstown, Maryland. Louvers shall be 6" deep with jambs fabricated from
.125" thick (8 gauge) extruded aluminum, alloy 6063-T52. Head, sill and blades shall
be .081" thick (12 gauge) extruded aluminum, same alloy. Assembly of members shall be
by welding or with stainless steel fasteners. Blades will have an integral gutter for
drainage of water, be set at an angle of 35° and be spaced on 3-1/2" centers.
Louvers shall meet the following criteria for testing
and performance:
A 48" x 48" louver shall have a minimum free
area of 8.13 ft2 (51%).
The free area velocity at the beginning point of water
penetration shall be 1075 fpm.
The pressure drop at this velocity shall not exceed
.12" water gauge.
At an exhaust free area velocity of 1050 fpm, pressure
drop shall not exceed .15" water gauge. |
