Blast Suppression Dampers - HBS-330

The HBS-330 blast suppression damper closes in the same direction as the normal airflow. These dampers protect against rapid pressure changes due to an explosion (as high as 5.77 psi). Pressures: 1.5 - 5.77 psi (7-40 kPa) to the maximum size Velocity: Up to 4000 fpm (20.3 m/s) Temperature: -40°F to 250°F (-40°C to 121°C)