Model BD-10R

Backdraft Damper
Round Butterfly Style Blade

BD-10R backdraft damper employs gravity operated butterfly style blades to restrict airflow and to permit the forward flow of air in the intended direction. The BD-10R damper may be mounted vertically or horizontally in either exhaust or intake installations for low velocity and pressure applications.

Standard Construction

Frame: 24 ga. (0.70) galvanized steel.
Blades: 24 ga. (0.51) aluminum - butterfly
Seals: Neoprene blade edge seals.
Minimum Size: 4" Ø (102 Ø)
Maximum Size: 12" Ø (305 Ø)

Ratings

Maximum System Velcocity: 1000 fpm (5.1 m/s)
Maximum System Pressure: 1 in. wg. (0.25 kPa)

Temperature: -20^oF to 130^oF (-29^oC to 54^oC)