SL- 440 PF
7
.5
′′
deep
horizontal fixed blade
louver with perforated sheet;
extruded aluminum construction; frame with
channel profile; corner joints mitered and mechanically fastened, with continuous recessed caulking
channel each side; intermediate mullions matching frame; gutters to drain rain wat
er to jamb and mullion
downspouts;
rated for an air performance and water penetration; Maintains effectiveness rat
e.
PERFORMANCE
- Free Area: 57%, based on a test sample of 48in (1219.2mm) x 48in (1219.2mm)
- Free Area Velocity at Beginning Point of Water Pen etration: 879 fpm (4.47 m/s)
- Air Volume Flow Rate at Beginning Point of Water Penetration: 7,956 cfm (3.75 m3/s)
- Pressure Drop at Beginning Point of Water Penetration: 0.12 in. H2O (30 Pa)
- Pressure Drop at 1000 fpm Free Area Velocity: 0.15 in. H2O (37 Pa)
- Airflow Classification — Class 2
