SP-645HD Standard Step Blade Heavy Duty

SP-645HD  Step Blade Heavy Duty

DESCRIPTION

6″ Deep High Performance Step Blade Heavy Duty 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 an air performance and water penetration maintained effectiveness rate tested in accordance with AMCA 500-L.

WATER PENETRATION PERFORMANCE

• Free Area Velocity at Beginning Point of Water Penetration: 740 fpm (3.76 m/s)
• Air Volume Flow Rate at Beginning Point of Water Penetration — 48in x 48in unit: 5,903.6 cfm (2.79 m3/s)

AIRFLOW PERFORMANCE

• Free Area: 51% , based on a test sample of 48in (1220mm) x 48in (1220mm)
• Airflow Classification—Class 2