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Dayton Ceiling/Roof-Mount Backdraft Damper - Ceiling/Roof-Mount Backdraft Dampers
DaytonCeiling/Roof-Mount Backdraft Dampers

Dayton Ceiling/Roof-Mount Backdraft Damper

The Dayton 14"H-W 4.5"L Aluminum Backdraft Damper (SKU 3G-OTH-74704) is a ceiling/roof-mount backdraft damper designed for use with a 12-inch fan. It features a single-panel flat blade design with vertical airflow…

SKU 3G-OTH-74704

Brand
Dayton
Item
Ceiling/Roof-Mount Backdraft Damper
Category
Ceiling/Roof-Mount Backdraft Dampers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dayton
Type
Single Panel, 14 in W, Felt
D
2 in
H
14 in
Blade Type
Flat Blade
Airflow Direction
Vertical
Mounting Position
Horizontal
Maximum Air Velocity
2000 fpm

Technical Documents

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

Product Description

The Dayton 14"H-W 4.5"L Aluminum Backdraft Damper (SKU 3G-OTH-74704) is a ceiling/roof-mount backdraft damper designed for use with a 12-inch fan. It features a single-panel flat blade design with vertical airflow direction and a horizontal mounting position, supporting a maximum air velocity of 2000 fpm. The damper measures 14 inches in height, 14 inches in width, and 2 inches in depth, with felt construction.

Frequently Asked Questions

What is the Dayton backdraft damper used for?

The Dayton backdraft damper is used to prevent reverse airflow in ceiling or roof exhaust systems. It mounts horizontally with a 12-inch fan, allowing air to exit vertically while closing automatically when the fan stops, stopping backdrafts and maintaining ventilation efficiency.

What are the specifications of the Dayton backdraft damper?

The Dayton is a single-panel flat blade backdraft damper with vertical airflow direction and horizontal mounting. It measures 14 inches high, 14 inches wide, and 2 inches deep, with felt construction. Maximum air velocity is 2000 fpm. It is designed for use with a 12-inch fan.

Where to buy the Dayton backdraft damper worldwide?

You can source the Dayton backdraft damper through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this Dayton part.

How to install the Dayton backdraft damper?

Install the Dayton damper horizontally in a ceiling or roof opening, aligning it with the 12-inch fan duct. Ensure the felt edges seal against the frame to prevent air leaks. Secure with mounting flanges and verify the blade moves freely before operation.

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 ceiling/roof-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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This single-panel backdraft damper is designed for horizontal mounting in ceiling or roof ventilation openings. It features flat blades that open vertically to allow exhaust airflow up to 2250 fpm and close automatically when the fan stops to prevent reverse airflow and debris entry. The damper is constructed with felt material
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This single-panel backdraft damper is designed for horizontal mounting in ceiling or roof ventilation openings. It features flat blades that open vertically to allow exhaust airflow up to 2250 fpm and close automatically when the fan stops to prevent reverse airflow and debris entry. The damper is constructed with felt material
This backdraft damper is designed for horizontal mounting in ceiling or roof ventilation systems. It features a single-panel flat blade that opens vertically to allow airflow up to 2250 fpm and closes to prevent reverse flow. The damper has a felt construction and measures 37 inches in height, 37 inches in width, and 2 inches in depth
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This backdraft damper is designed for horizontal mounting in ceiling or roof ventilation systems. It features a single-panel flat blade that opens vertically to allow airflow up to 2250 fpm and closes to prevent reverse flow. The damper has a felt construction and measures 37 inches in height, 37 inches in width, and 2 inches in depth
Aluminum wall-mount backdraft damper with single panel flat blade design. Mounts vertically for horizontal airflow, maximum air velocity 2250 fpm. Prevents reverse airflow in exhaust systems when fan is off
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Aluminum wall-mount backdraft damper with single panel flat blade design. Mounts vertically for horizontal airflow, maximum air velocity 2250 fpm. Prevents reverse airflow in exhaust systems when fan is off
Aluminum wall-mount backdraft damper with single panel flat blade design. Measures 12 3/4 inches high and wide. Mounts vertically for horizontal airflow, maximum air velocity 2250 fpm. Prevents reverse airflow when fan is off in ventilation systems
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Aluminum wall-mount backdraft damper with single panel flat blade design. Measures 12 3/4 inches high and wide. Mounts vertically for horizontal airflow, maximum air velocity 2250 fpm. Prevents reverse airflow when fan is off in ventilation systems
This wall-mount backdraft damper is designed for vertical mounting in exhaust or intake systems to prevent reverse airflow when the fan is off. It features a single-panel, flat blade construction with vertical airflow direction. Suitable for use with a 12-inch fan, it handles a maximum air velocity of 2250 fpm
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This wall-mount backdraft damper is designed for vertical mounting in exhaust or intake systems to prevent reverse airflow when the fan is off. It features a single-panel, flat blade construction with vertical airflow direction. Suitable for use with a 12-inch fan, it handles a maximum air velocity of 2250 fpm
This wall-mount backdraft damper prevents reverse airflow when the fan is off. It features a single-panel flat blade design with aluminum construction, configured for vertical airflow and vertical mounting. Suitable for use in exhaust or intake ventilation systems, with a maximum air velocity of 2250 fpm
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This wall-mount backdraft damper prevents reverse airflow when the fan is off. It features a single-panel flat blade design with aluminum construction, configured for vertical airflow and vertical mounting. Suitable for use in exhaust or intake ventilation systems, with a maximum air velocity of 2250 fpm

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This backdraft damper is designed for ceiling or roof-mount ventilation systems to prevent reverse airflow. It features a single-panel flat blade with vertical airflow direction and horizontal mounting position. The damper measures 29 inches in height, 29 inches in width, and 2 inches in depth, with a felt seal. Maximum air velocity is 2250 fpm
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This backdraft damper is designed for ceiling or roof-mount ventilation systems to prevent reverse airflow. It features a single-panel flat blade with vertical airflow direction and horizontal mounting position. The damper measures 29 inches in height, 29 inches in width, and 2 inches in depth, with a felt seal. Maximum air velocity is 2250 fpm
This backdraft damper is designed for horizontal mounting in ceiling or roof exhaust systems to prevent reverse airflow. It features a single-panel flat aluminum blade with felt seals, vertical airflow direction, and a maximum air velocity of 2250 fpm. Dimensions are 41 inches high, 41 inches wide, and 2 inches deep
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This backdraft damper is designed for horizontal mounting in ceiling or roof exhaust systems to prevent reverse airflow. It features a single-panel flat aluminum blade with felt seals, vertical airflow direction, and a maximum air velocity of 2250 fpm. Dimensions are 41 inches high, 41 inches wide, and 2 inches deep
This backdraft damper is designed for horizontal mounting in ceiling or roof exhaust systems. It features a single-panel flat blade that opens under forward airflow and closes when airflow stops, preventing reverse flow. The unit measures 25 inches high by 25 inches wide by 2 inches deep, with felt construction and a maximum air velocity rating of 2250 fpm
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This backdraft damper is designed for horizontal mounting in ceiling or roof exhaust systems. It features a single-panel flat blade that opens under forward airflow and closes when airflow stops, preventing reverse flow. The unit measures 25 inches high by 25 inches wide by 2 inches deep, with felt construction and a maximum air velocity rating of 2250 fpm
This single-panel aluminum backdraft damper is designed for ceiling or roof-mount exhaust systems. It prevents reverse airflow when the fan is off, supporting horizontal airflow up to 2250 fpm. The damper mounts vertically and measures 26 inches high by 26 inches wide with a depth of 1 5/8 inches
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This single-panel aluminum backdraft damper is designed for ceiling or roof-mount exhaust systems. It prevents reverse airflow when the fan is off, supporting horizontal airflow up to 2250 fpm. The damper mounts vertically and measures 26 inches high by 26 inches wide with a depth of 1 5/8 inches
Single-panel aluminum backdraft damper for horizontal mounting in ceiling or roof openings. Designed for horizontal airflow with a maximum velocity of 1500 fpm. Measures 32 inches high, 26 inches wide, and 1 3/8 inches deep. Suitable for use with a 24-inch fan in commercial or industrial exhaust systems
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Single-panel aluminum backdraft damper for horizontal mounting in ceiling or roof openings. Designed for horizontal airflow with a maximum velocity of 1500 fpm. Measures 32 inches high, 26 inches wide, and 1 3/8 inches deep. Suitable for use with a 24-inch fan in commercial or industrial exhaust systems
This backdraft damper is designed for ceiling or roof exhaust systems to prevent reverse airflow. It features a single-panel flat blade with felt seals, mounts horizontally, and handles vertical airflow up to 2000 fpm. Dimensions: 21 in height, 21 in width, 2 in depth
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This backdraft damper is designed for ceiling or roof exhaust systems to prevent reverse airflow. It features a single-panel flat blade with felt seals, mounts horizontally, and handles vertical airflow up to 2000 fpm. Dimensions: 21 in height, 21 in width, 2 in depth
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Single-panel, flat-blade backdraft damper for horizontal mounting on ceilings or roofs. Allows horizontal airflow in one direction and closes automatically when airflow stops to prevent backdrafts. Measures 44 inches high, 44 inches wide, and 1 5/8 inches deep. Maximum air velocity 2250 fpm
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Single-panel, flat-blade backdraft damper for horizontal mounting on ceilings or roofs. Allows horizontal airflow in one direction and closes automatically when airflow stops to prevent backdrafts. Measures 44 inches high, 44 inches wide, and 1 5/8 inches deep. Maximum air velocity 2250 fpm