On-Line Catalog : Backdraft Dampers > Light Duty > Formed Blade > BD-51
Model BD-51 backdraft damper fabric style blade
Application
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.Documents
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