HP-445 OPERABLE

HP-445-OPERABLE Louver

DESCRIPTION

4″ OSA Operable Thinline series; 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; rated for air performance, tested in accordance with AMCA 500-L.

WATER PENETRATION PERFORMANCE

• Free Area Velocity at Beginning Point of Water Penetration: 761.2 fpm (3.87 m/s)
• Air Volume Flow Rate at Beginning Point of Water Penetration — 48in x 48in unit: 6,485 cfm (3.06 m³/s)
• Pressure Drop at Beginning Point of Water Penetration: 0.126 in. H₂O (32 Pa)

AIRFLOW PERFORMANCE

• Free Area: 55% , based on a test sample of 48in (1219.2mm) x 48in (1219.2mm)
• Airflow Classification—Class 2