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Dayton 35.75"H-W 4.5"L Aluminum Backdraft Dampr: For 36 in Fan, For 36 in Nominal Duct Dia - Universal-Mount Backdraft Dampers
DaytonUniversal-Mount Backdraft Dampers

Dayton 35.75"H-W 4.5"L Aluminum Backdraft Dampr: For 36 in Fan, For 36 in Nominal Duct Dia

The Dayton 3HHN1 is a universal-mount backdraft damper with a 35.75-inch height and width and a 4.5-inch length, designed for use with a 36-inch fan and 36-inch nominal duct diameter. It features flat blades…

SKU 3G-OTH-74658

Brand
Dayton
Item
35.75"H-W 4.5"L Aluminum Backdraft Dampr: For 36 in Fan, For 36 in Nominal Duct Dia
Category
Universal-Mount Backdraft Dampers
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Technical Specifications

Dayton
Manufacturer Part Number
3HHN1
Type
For 36 in Nominal Duct Dia, Single Panel
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 3HHN1 is a universal-mount backdraft damper with a 35.75-inch height and width and a 4.5-inch length, designed for use with a 36-inch fan and 36-inch nominal duct diameter. It features flat blades, supports horizontal airflow direction, and is intended for vertical mounting. The damper has 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 3HHN1 backdraft damper used for?

The Dayton 3HHN1 is a universal-mount backdraft damper that prevents reverse airflow in ventilation systems. It is designed for use with a 36-inch fan and 36-inch nominal duct diameter, making it suitable for industrial exhaust and intake applications where horizontal airflow and vertical mounting are required.

What are the specifications of the Dayton 3HHN1 backdraft damper?

The Dayton 3HHN1 has a 35.75-inch height and width, a 4.5-inch length, and flat blades. It supports horizontal airflow direction, is designed for vertical mounting, and has a maximum air velocity of 2250 fpm. The manufacturer part number is 3HHN1.

Where to buy the Dayton 3HHN1 backdraft damper worldwide?

3G Electric supplies the Dayton 3HHN1 backdraft damper to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and to place an order for this universal-mount damper.

How to install the Dayton 3HHN1 backdraft damper?

Install the Dayton 3HHN1 damper in a vertical mounting position with the airflow direction set horizontally. Ensure the duct diameter matches the 36-inch nominal size and that the damper is securely fastened. Follow standard HVAC practices for sealing and support to prevent air leakage and ensure proper 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 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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