Labels:door | light | mirror | seaplane | shower | window OCR: Prev Next Water Management of the Building Envelope Duct Hardware Single Blade Dampers are typically installed in ductwork as one -time measure to achieve an air ba anced duct systerm The single blade damper hardware Which moved the damper from fully open i to fully closed position consist of handle drive bearing, and end bearing The handle connected quadrant, dial Or regulator These provide an external visual reference to the position of the damper within the duct The handle moves the drive bearing attached to the damper blade The end bearing attached tr the opposite side of the damper blade and protrudes through the duct tc provide pivot point for smooth non -binding movement balanced system quadr withir attachec
