Volume Control & Relief Dampers

BDE-100
Back Draft Damper – Medium Duty

The Holyoake BDE-100 is a medium duty back draft or non-return damper. Constructed from extruded aluminium and stainless steel components, its single blade seal is capable of handling high velocities of turbulent air and provides minimal leakage when closed against reverse flow.

  • Medium duty robust blades.
  • Aluminium and stainless steel construction.
  • Vertical or horizontal mounting.
  • Single blade edge seal.
  • Linked blades to avoid flutter.
  • Gravity operation.
  • Tension springs and weights can be used to provide adjustable airflow resistance.
  • High temperature blade seals (225°C) are available as an option.
Manual
BPIR Datasheet