Inline Butterfly Backdraft Damper with Spring – Galvanized

$23.60$50.34

Category: HVAC Damper – Subcategory: Backdraft Material: Galvanized Steel – Finish: Mill – Thickness: 28 Gauge Shape: Round – Dimensions: 4″, 5”, 6″, 7″, 8″, 10″ (undersized to fit in ductwork)Sku: BDS

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The FAMCO BDS inline Butterfly Backdraft Damper with spring is used as an inline back draft damper for heat exchangers, exhaust systems, solar heating systems and other intake or exhaust applications where a powered damper is not needed. This damper works in both horizontal or vertical positions and the foam seal provides minimal air leakage. Due to its unique design and Aluminum blades, it opens easily with normal air flow and closes with gravity. Quality constructed Galvanized steel undersized to fit inside round duct. The FAMCO BDS inline Butterfly Backdraft Damper with spring is available for duct sizes 4 inch, 5 inch, 6 inch, 7 inch, 8 inch, 10 inch. Spec sheet available for download. The FAMCO BDS inline Butterfly Backdraft Damper with spring is manufactured by Famco in the United States and comes with a 1-year warranty against product defects and workmanship. If you have any questions about this damper, please refer to the FAQs above or feel free to contact us by phone or email.

BDS Specs
(undersized to fit in ductwork) - Sku: BDS Download the Product Specs .PDF"/> Print Spec Sheet

Inline Butterfly Backdraft Damper with Spring - Galvanized

SKU: BDS

Questions and answers of the customers

  1. Q Is this suitable for a dryer vent answer now
    Asked on January 17, 2021 12:34 pm
    A

    No - this is not rated or recommended for use with a dryer vent. the foam gasket may pose a risk of trapping lint.

  2. There are no answers for this question yet. Answer now
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  4. A

    No - we are unable to customize this product at this time, unfortunately.

  5. Q Will this block cigar odor? answer now
    Asked on December 12, 2020 1:46 pm
    A

    This is not what this is designed for, so we could not say - it is not 100% air tight, however, so this is unlikely.

  6. A

    We do not currently have CFM test ratings for these dampers

  7. A This product will fit inside of the duct work and is held in place via the foam gasket, and should not require additional mounting.

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