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Damper, Roof Mount

  • Mfr # 4HX66

  • Zoro # G0293465

product price:  $68.59
/ea

Key Features

Type
Roof Mount, Exhaust
Damper Size (In.)
19 x 19
Overall Size (In.)
21 x 21
Use w/Dayton Ventilators
4HX83, 4HX84, 4HX94, 4HX95, 4HZ48, 4HZ49, 4HZ52, 4HZ53, 4YC48, 4YC49, 4YC72-75
Flange Width (In.)
1 in
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Specifications

Product Information

MFR #
4HX66
Zoro #
G0293465
UPC #
190735325902
Country of Origin
United States

Dimensions

Damper Size (In.)
19 x 19
Overall Size (In.)
21 x 21
Flange Width (In.)
1 in
Overall Width
21 in
Overall Height
21 in
Overall Length
4 1/2 in
Frame Depth
2 in
Rough Opening Length
18 1/2 in
Frame Material Thickness
20 ga
Fits Fan Diameter
18 in
Flange Width
1 in
Rough Opening Diameter
19 1/2 in
Rough Opening Width
19.5 in
Wire Rope Length
4 1/2 in

Details

Item
21"H-W 4.5"L Aluminum Backdraft Damper
Type
Roof Mount, Exhaust
Use w/Dayton Ventilators
4HX83, 4HX84, 4HX94, 4HX95, 4HZ48, 4HZ49, 4HZ52, 4HZ53, 4YC48, 4YC49, 4YC72-75
Construction Material
Aluminum Blades, G-90 Galvanized Steel Frame, Nylon Bushings and Galvanized Steel Tie Rods., Stainless Steel Pivot Pins
Max. Velocity (FPM)
2,000 fpm
Includes
Pre-Punched Conduit Hole Knock-Out; Felted Edges for Quiet Operation
Outside Flange (In.)
21 x 21
Rough Opening Shape
Square
Switch Action
Normally Closed
Mounting Position
Horizontal
Blade Type
Flat Blade
Counterbalanced
No
Blade Seal Material
Felt
Free Area
1.9 sq ft
Frame Material
Galvanized Steel
For Duct Shape
Square
Closure Velocity Rating
2,000 fpm
Maximum Air Velocity
2000 fpm
Airflow Direction
Vertical
Frame Less Flange
19
Single Acting/Double Acting
Single Acting
Blade Material
Aluminum
Blade Orientation
Parallel Blades
Maximum Pressure
1 in wc
Number of Panels
1
Closure Type
Gravity
Maximum Ambient Temperature
180 Degrees F
Damper Application
Backdraft
Damper Type
Static
Bushing Material
Nylon
Flange Type
Rear Flange

Description

21 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 2000 fpm, Overall Height 21 in, Rough Opening Diameter 19 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 18 in, For Duct Shape Square, Free Area 1.9 sq ft, Overall Width 21 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 18 1/2 in

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