Model ABD is an automatic balancing damper designed to maintain a constant airflow volume in HVAC applications. The damper blade is calibrated to automatically adjust to changing pressures. The ABD is for use in both supply and exhaust applications.

  • Pressure: 0.2 in. wg to 2 in. wg
  • Airflow Range: 25 cfm to 400 cfm (425 cfm for supply applications)
  • Temperature: 25°F to 150°F