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Dayton 14.75"H-W 4.5"L Aluminum Backdraft Dampr: For 12 in Fan, Single Panel, 14 3/4 in H - Wall-Mount Backdraft Dampers
DaytonWall-Mount Backdraft Dampers

Dayton 14.75"H-W 4.5"L Aluminum Backdraft Dampr: For 12 in Fan, Single Panel, 14 3/4 in H

The Dayton 4HX74 is a wall-mount backdraft damper designed for use with a 12-inch fan. It features a single-panel flat blade construction with dimensions of 14.75 inches in height and width, and a 4.5-inch length…

SKU 3G-OTH-75701

Brand
Dayton
Item
14.75"H-W 4.5"L Aluminum Backdraft Dampr: For 12 in Fan, Single Panel, 14 3/4 in H
Category
Wall-Mount Backdraft Dampers
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Technical Specifications

Dayton
Manufacturer Part Number
4HX74
Type
Single Panel, 14 3/4 in W
H
14 3/4 in
Blade Type
Flat Blade
Airflow Direction
Horizontal
Mounting Position
Vertical
Maximum Air Velocity
2250 fpm
View Full Spec Sheet

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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton 4HX74 is a wall-mount backdraft damper designed for use with a 12-inch fan. It features a single-panel flat blade construction with dimensions of 14.75 inches in height and width, and a 4.5-inch length. This aluminum damper is mounted vertically for horizontal airflow, with a maximum air velocity of 2250 fpm.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Dayton 4HX74 backdraft damper used for?

The Dayton 4HX74 is a wall-mount backdraft damper that prevents reverse airflow when a 12-inch fan is off. It is commonly installed in commercial or industrial exhaust systems to maintain one-way horizontal airflow, protecting ventilation performance and indoor air quality.

What are the specifications of the Dayton 4HX74 backdraft damper?

The Dayton 4HX74 has a single-panel flat blade design, 14 3/4 in height and width, and 4.5 in length. It is made of aluminum, mounts vertically, handles horizontal airflow, and supports a maximum air velocity of 2250 fpm. The manufacturer part number is 4HX74.

Where to buy the Dayton 4HX74 backdraft damper worldwide?

3G Electric supplies the Dayton 4HX74 backdraft damper to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and a quote tailored to your location.

How to install the Dayton 4HX74 backdraft damper?

Install the Dayton 4HX74 in a vertical mounting position with the airflow direction horizontal. Ensure the damper is securely fastened to the wall or duct opening, and that the flat blade swings freely. Follow standard HVAC practices for sealing and support to prevent air leakage.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton wall-mount backdraft dampers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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