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Damper, Roof Mount

  • Mfr # 4HX68

  • Zoro # G0452907

product price:  $110.99
/ea
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Key Features

Type
Roof Mount, Exhaust
Damper Size (In.)
27 X 27
Overall Size (In.)
29 x 29
Outside Flange (In.)
29 x 29
Flange Width (In.)
1 in
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Specifications

Product Information

MFR #
4HX68
Zoro #
G0452907
UPC #
190735325926
Country of Origin
United States

Dimensions

Damper Size (In.)
27 X 27
Overall Size (In.)
29 x 29
Flange Width (In.)
1 in
Overall Length
4 1/2 in
Overall Height
29 in
Overall Width
29 in
Flange Width
1 in
Rough Opening Width
27.5 in
Rough Opening Length
26 1/2 in
Rough Opening Diameter
27 1/2 in
Frame Material Thickness
20 ga
Frame Depth
2 in
Fits Fan Diameter
24 in
Wire Rope Length
4 1/2 in

Details

Item
29"H-W 4.5"L Aluminum Backdraft Damper
Type
Roof Mount, Exhaust
Outside Flange (In.)
29 x 29
Construction Material
Aluminum Blades, G-90 Galvanized Steel Frame, Nylon Bushings and Galvanized Steel Tie Rods., Stainless Steel Pivot Pins
Max. Velocity (FPM)
2,250 fpm
Use w/Dayton Ventilators
4HX87, 4HX98, 4YC52, 4YC53, 4YC54, 4YC55
Includes
Pre-Punched Conduit Hole Knock-Out; Felted Edges for Quiet Operation
Rough Opening Shape
Square
Damper Type
Static
Closure Type
Gravity
Blade Type
Flat Blade
Frame Less Flange
27
Bushing Material
Nylon
Maximum Pressure
1 in wc
Counterbalanced
Yes
Switch Action
Normally Closed
Single Acting/Double Acting
Single Acting
Mounting Position
Horizontal
Maximum Ambient Temperature
180 Degrees F
Damper Application
Backdraft
Maximum Air Velocity
2250 fpm
Number of Panels
1
Blade Seal Material
Felt
Flange Type
Rear Flange
Airflow Direction
Vertical
Blade Material
Aluminum
Closure Velocity Rating
2,250 fpm
Frame Material
Galvanized Steel
For Duct Shape
Square
Blade Orientation
Parallel Blades
Free Area
4.1 sq ft

Description

29 In.H-W 4.5 In.L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 29 in, Rough Opening Diameter 27 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 24 in, For Duct Shape Square, Free Area 4.1 sq ft, Overall Width 29 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 26 1/2 in

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