Control, Manual, & Backdraft Dampers

ZBBD25

Barometric Bypass Damper
Overview
Product Features
Ruskin model ZBBD25 barometric bypass dampers are used to automatically bypass excess air when the duct static pressure increases due to the closing of zone dampers.  The barometric bypass dampers relieve excess air in duct systems through the use of a counter-balanced controlled arm weight.  Various relief air control settings are created by simple adjustment of the weight on the arm.  The weight can be moved either direction along the entire length of the arm to allow the damper to open at the desired pressure.
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