CVS Backdraft Dampers (also called Non-Return Dampers) allow airflow in one direction and prevent reverse airflow for use in exhaust or intake HVAC systems. Backdraft dampers are generally operated by gravity, where pressure or velocity opens the blades while gravitational force closes the blades.
CVS backdraft dampers are suitable for installation in round ductwork and comply with the requirements of SMACNA, DW144 and AMCA relating to these dampers. Available in various materials including Galvanized Steel, and Stainless-Steel construction. CVS control dampers are AMCA certified for Air Performance & Leakage.
Submittals
CB-600 – Rectangular Backdraft Damper
CB-601 – Rectangular Backdraft Damper
BF – Butterfly, Round Backdraft Damper
CD – Counterbalanced, Round Backdraft Damper
HCB-700 – Heavy Duty, Rectangular Backdraft Damper
HCB-750 – Heavy
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Performance Data
CB-600 – Rectangular Backdraft Damper
CB-601 – Rectangular Backdraft Damper
BF – Butterfly, Round Backdraft Damper
CD – Counterbalanced, Round Backdraft Damper
HCB-700 – Heavy Duty, Rectangular Backdraft Damper
HCB-750 – Heavy Duty, Rectangular Backdraft Damper
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Installation
Installation, Operation and Maintenance Manual
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Info/Brochure
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