We use cookies and similar tools necessary to enable you to make purchases and enhance your shopping experiences. We also use them to understand how customers use our services (for example, by measuring site visits) so we can make improvements. You can read our Cookie Policy for more information.
Strictly Necessary Cookies
Always Active
These cookies make our website work. They include logging personal details, like login/sign-up or account data, browser information, images & videos, and shopping cart journey.
In addition, we use optimization cookies to test new features and designs on our website. The information collected helps us improve our website and customers' experience.
Advertising
These cookies are used to understand the performance and relevancy of our adverts, to provide you with personalised adverts on other websites and social media, to track when you have arrived at our site from a recognised third-party affiliate website, and to track if you made a purchase based on the adverts we displayed to you.
Recommendations
These cookies enable us to provide personalised product and content recommendations, to make the browsing experience more relevant to you.
Functionality
These cookies are used to offer customer surveys and feedback, to improve search results, and to allow you to share content from our website on social media.
Analytics
These cookies help us improve our website by collecting and reporting information on how you use it.
€ 24,99 Flat Shipping + VAT€ 24,99 flat shipping is applicable on orders with an aggregate weight less than 10kg. Orders exceeding 10kg will be charged default shipping rates.
€56.23 /unit
Add To Cart
Request a Quote
Payment
Product Specifications:
Item
Backdraft Damper
Acma Leakage Class
Not Applicable
Air Flow Direction
Horizontal
Application
Backdraft
Blade Material
Aluminum
Blade Material Thickness
26 ga.
Blade Orientation
Parallel Blades
Blade Seal Material
Felt
Blade Type
Flat Blade
Bushing Material
Stainless Steel
Closure Type
Gravity
Connection Type
Not Applicable
Counterbalanced
Yes
Damper Finish
Mill Finish
Damper Size
8" x 8"
Damper Type
Static
Fits Fan Dia.
8"
Flange Type
Front Flange
Flange Width
1 1/2" , 1 3/8"
For Duct Shape
Square
For Fuel Type
Not Applicable
Frame Depth
1 5/8"
Frame Finish
Galvanized
Frame Material
Aluminum
Frame Material Thickness
0.1"
Fusible Link Temp.
Not Applicable
Includes
Felted Edges For Quiet Operation
Max. Air Velocity
2250 FPM
Max. Ambient Temp.
180°F
Max. Pressure
1 in. wc
Max. Velocity
2000 FPM
Mounting Location
Wall
Mounting Position
Vertical
Number Of Panels
1
Opening Type
Spring
Overall Dia.
Not Applicable
Overall Height
10 3/4"
Overall Length
4 1/2"
Overall Width
10 3/4"
Pressure Drop @ 1000 Fpm
Not Applicable
Rough Opening Dia.
8 1/2"
Rough Opening Length
7 1/2" , 8"
Rough Opening Shape
Square
Rough Opening Width
8 1/2" , 8"
Seal Material
Not Applicable
Single Acting/double Acting
Single Acting
Switch Action
Normally Closed
Tie-rod Finish
Galvanized
Tie-rod Material
Steel
Type
Supply, Wall Mount
Action
Single Acting
Airflow Direction
Horizontal, Vertical
Closure Velocity Rating
2250 FPM
Fits Fan Diameter
8"
Frame Less Flange
8
Free Area
0.3 sq. ft.
Maximum Air Velocity
2250 FPM
Maximum Ambient Temperature
180°F
Maximum Pressure
1 in. wc
Minimum Ambient Temperature
-40°F
Series
CWV Series
Shipping Info:
Ship weight (kg)
0.86
Ship height (cm)
27.31
Ship length (cm)
11.43
Ship width (cm)
27.31
HS code
8414901080
Country of Origin
US
Product Details:
Dayton 4HX72 backdraft damper is suitable for ventilation systems to control the flow of air and prevent backdrafts, ensuring efficient ventilation and maintaining desired air pressure differentials. It is installed in exhaust or supply air ducts, especially in areas where maintaining proper air circulation & preventing the reversal of airflow is essential.
Frequently Asked Questions:
Q. What is the ambient temperature of this backdraft damper?
A. It has a maximum ambient temperature of 180 degrees F.
Q. How to know if my Dayton 4HX72 backdraft damper is installed correctly?
A.
Ensure the blades move without obstruction upon installation.
Place the damper in a level orientation, avoiding any twisting of the damper frame.
If the mounting surface is uneven or if the blades experience resistance, allow some slack in the mounting screws.
Q. What are the factors to consider while choosing a backdraft damper?
A.
The direction of airflow.
The type of damper operation (gravity-driven or motorised).
Requirements for system velocity and back pressure.
The preferred mounting configuration (inserted into the duct/opening or flange mounted).
Q. What is the appropriate location for a damper?
A.
In symmetrical structures, installing dampers on both lower and upper floors is recommended.
In the case of asymmetrical or flexible structures, the middle floors often offer the most suitable placement for achieving the most effective location of the dampers.