18" Buterfly Damper

Item #: 35330
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These corrosion-proof 18" PVC Butterfly Dampers are for the construction of exhaust ventilation systems. PVC material compounds used in the manufacture of these duct fittings conform to PVC 1120, ASTM D-1784, Type 1, Grade 1, Cell Class 12454-B. All internal parts are CPVC including the body, damper plate, and shaft. Locking hardware is stainless steel. Butterfly (balancing) dampers are furnished with a locking quadrant, to permanently position. Damper allows for less than 5% air flow restriction when open and offer an approximate 95% seal when closed. These dampers can be installed either vertically or horizontally. 18" damper is 17.75" long with a 2.5" socket depth and .25" thick damper plate. NOTES: Fittings are triple bead welded. Pictures are to represent style of fittings only; color is gray.

    Item Information

    Item Number:35330
    Catalog Page Number:P-406
    Manufacturer Part #:1034-BD-18

    Tech Specs

    Weight: 14.5 lbs

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