HDB

Heavy Duty Backdraft Dampers
The HDB series of heavy duty backdraft dampers are designed for higher pressure, velocity or temperature environments. Dampers are fabricated of heavy gauge galvanized steel standard, these dampers are capable of operating up to 250ºF and up to 3,000 fpm (HDB-H)
  • Galvanized steel frame and blades standard; 304 Stainless or all aluminum construction available
  • Available with assist or retard counterweights
  • HDB-M appropriate for use up to 2,500 fpm & 2.5" w.g. (at 36" wide); HDB-H appropriate for use up to 3,000 fpm & 4" w.g. (at 36" wide)
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