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Dayton 63.75"H-W 4.5"L Aluminum Backdraft Dampr: For 60 in Fan, For 64 in Nominal Duct Dia - Universal-Mount Backdraft Dampers
DaytonUniversal-Mount Backdraft Dampers

Dayton 63.75"H-W 4.5"L Aluminum Backdraft Dampr: For 60 in Fan, For 64 in Nominal Duct Dia

The Dayton 5NKN9 is a universal-mount backdraft damper designed for use with a 60-inch fan and a 64-inch nominal duct diameter. This flat-blade, double-panel aluminum damper is configured for horizontal airflow and…

SKU 3G-OTH-74906

Brand
Dayton
Item
63.75"H-W 4.5"L Aluminum Backdraft Dampr: For 60 in Fan, For 64 in Nominal Duct Dia
Category
Universal-Mount Backdraft Dampers
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Technical Specifications

Dayton
Manufacturer Part Number
5NKN9
Type
For 64 in Nominal Duct Dia, Double Panel
Blade Type
Flat Blade
Airflow Direction
Horizontal
Mounting Position
Horizontal
Maximum Air Velocity
2000 fpm
View Full Spec Sheet

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

Product Description

The Dayton 5NKN9 is a universal-mount backdraft damper designed for use with a 60-inch fan and a 64-inch nominal duct diameter. This flat-blade, double-panel aluminum damper is configured for horizontal airflow and horizontal mounting, with a maximum air velocity of 2000 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 5NKN9 backdraft damper used for?

The Dayton 5NKN9 universal-mount backdraft damper prevents reverse airflow in horizontal duct systems. It is designed for use with a 60-inch fan and a 64-inch nominal duct diameter, making it suitable for industrial ventilation and exhaust applications where one-way airflow is critical.

What are the specifications of the Dayton 5NKN9 backdraft damper?

The Dayton 5NKN9 features flat aluminum blades in a double-panel design. It is rated for horizontal airflow and horizontal mounting, with a maximum air velocity of 2000 fpm. The damper fits a 64-inch nominal duct diameter and is compatible with a 60-inch fan.

Where to buy the Dayton 5NKN9 backdraft damper worldwide?

3G Electric supplies the Dayton 5NKN9 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 5NKN9 backdraft damper?

Install the Dayton 5NKN9 damper in a horizontal duct section with airflow direction matching the arrow on the frame. Ensure the damper is mounted level and securely fastened to the duct flanges. Verify that the blades open freely and close fully under gravity before system startup.

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 universal-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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