Industrial Backdraft Dampers - HB-120

Model HB-120 is a heavy duty industrial backdraft damper with a double-flanged channel frame and single thickness blades. Pressure: Up to 8.5 in. wg (2.1 kPa) Velocity: Up to 5150 fpm (26.2 m/s) Temperature: -20°F to 180°F with seals; -20°F to 250°F without seals (-29°C to 82°C with seals; -29°F to 121°C without seals)