Over 100 Years of Excellent Quality Service
Industrial Round
BD-561
Round Backdraft Damper for Clean Air Use, Single Thickness Blades, Carbon Steel Construction, Channel Frame, 5" wg Max Pressure, 3000 fpm Max Velocity, 300° F Max Temperature, 6" thru 48" Diameter
BD-562
Round Backdraft Damper for Clean Air Use, Single Thickness Blades, Carbon Steel Construction, Channel Frame, 8.5" wg Max Pressure, 4000 fpm Max Velocity, 300° F Max Temperature, 12" thru 60" Diameter
BD-563
Round Backdraft Damper for Clean Air Use, Single Thickness Blades, Carbon Steel Construction, Channel Frame, 13.5" wg Max Pressure, 4000 fpm Max Velocity, 300° F Max Temperature, 12" thru 72" Diameter