HBS-331

The HBS-331 blast suppression damper closes in the opposite direction as 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 to the maximum size
  • Velocity: Up to 4000 fpm
  • Temperature: -40°F to 250°F