Industrial Backdraft Dampers

Designed to allow airflow in one direction and prevent reverse airflow.

Industrial backdraft dampers can be applied to exhaust or intakes and are designed to prevent backflow at static pressures up to 20 in. wg and velocities up to 6400 fpm.

HB-110

Features a 2V blade, is spark B and C resistant with pressure up to 5 in. wg, velocity up to 3900 fpm, and a temperature range of -20°F to 180°F.

VIEW HB-110

HB-120

Features single thickness 2V blades with pressure up to 8.5 in. wg, velocity up to 5150 fpm, and a temperature range of -20°F to 180°F with seals.

VIEW HB-120

HB-230

Features double thickness fabricated airfoil blades with pressure up to 13½ in. wg, velocity up to 5150 fpm, and a temperature range of -20°F to 250°F.

VIEW HB-230

HB-240

Features extruded airfoil blades, spark B and C construction, pressure up to 13½ in. wg, velocity up to 5150 fpm, and a temperature range of -40°F to 250°F.

VIEW HB-240

HB-330

Features double thickness fabricated airfoil blades, pressure up to 20 in. wg, velocity up to 6400 fpm, and a temperature range of -40°F to 250°F.

VIEW HB-330

HBR-150

Heavy duty round industrial backdraft damper with flanged frame. Pressure up to 6 in. wg, velocity up to 4000 fpm and temperature up to 250°F.

VIEW HBR-150

HBR-050

Light duty, the damper features a single painted round blade, pressure up to 6 in. wg, velocity up to 3000 fpm, and temperature up to 250°F.

VIEW HBR-050