4" Butterfly Damper

Item #: 35090
In Stock
$172.30/Each

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2-3$163.69Save 5%
4-11$155.07Save 10%
12+$146.46Save 15%

Overview

These corrosion-proof 4" 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. 4" damper is 8.5" long with a 1.75" socket depth and .187" thick damper plate. NOTES: Fittings are triple bead welded. Pictures are to represent style of fittings only; color is gray.

    Item Information

    Item Number:35090
    Catalog Page Number:P-372
    Weight:1.9
    Manufacturer:Harrison
    Manufacturer Part #:1034-BD-04

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