This manual damper includes pre-punched conduit hole knock-out, felted edges for quiet operation, is made of galvanized steel, and it measures 14 inch width, 14 inch height, 4½ inch length. This manual damper is ceiling mountable.
Technical Specs
ArticleRegistre de refoulement
Frame MaterialGalvanized Steel
Maximum Air Velocity2,000 fpm
Rough Opening ShapeSquare
For Duct ShapeSquare
Frame Material Thickness20 ga
Rough Opening Length11 1/2 in
Rough Opening Width12.5 in
Damper TypeStatic
Maximum Ambient Temperature180 Degrees F
Blade OrientationParallel Blades
Frame Less Flange12 sq in
Flange TypeRear Flange
Airflow DirectionVertical
Damper ApplicationBackdraft
Number of Panels1
Rough Opening Diameter12 1/2 in
Fits Fan Diameter12 in
Free Area0.7 sq ft
Frame Depth2 in
Maximum Pressure1 in wc
Blade MaterialAluminum
Single Acting/Double ActingSingle Acting
Flange Width1 in
Closure Velocity Rating2,000 fpm
CounterbalancedNot Counterbalanced
Blade Seal MaterialFelt
Country of Originestados unidos
(subject to change)