On-Line Catalog : Backdraft Dampers > Light Duty > Formed Blade > BD-51
Model BD-51 backdraft damper
fabric style blade
BD-51 backdraft dampers employ gravity operated fabric style blades to restrict reverse airflow and to permit the forward flow of air in the intended direction. The BD-51 damper may be mounted vertically or horizontally in either exhaust or intake installations for low velocity and pressure applications.