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Dayton 29.75"H-W 4.5"L Aluminum Backdraft Dampr: For 30 in Fan, For 30 in Nominal Duct Dia - Universal-Mount Backdraft Dampers
DaytonUniversal-Mount Backdraft Dampers

Dayton 29.75"H-W 4.5"L Aluminum Backdraft Dampr: For 30 in Fan, For 30 in Nominal Duct Dia

The Dayton 3HHL8 is a universal-mount backdraft damper designed for a 30-inch fan and 30-inch nominal duct diameter. It features a single-panel flat blade construction with aluminum material, supporting horizontal…

SKU 3G-OTH-74585

Brand
Dayton
Item
29.75"H-W 4.5"L Aluminum Backdraft Dampr: For 30 in Fan, For 30 in Nominal Duct Dia
Category
Universal-Mount Backdraft Dampers
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Technical Specifications

Dayton
Manufacturer Part Number
3HHL8
Type
For 30 in Nominal Duct Dia, Single Panel
Blade Type
Flat Blade
Airflow Direction
Horizontal
Mounting Position
Vertical
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 3HHL8 is a universal-mount backdraft damper designed for a 30-inch fan and 30-inch nominal duct diameter. It features a single-panel flat blade construction with aluminum material, supporting horizontal airflow and vertical mounting. The damper has 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 3HHL8 backdraft damper used for?

The Dayton 3HHL8 backdraft damper prevents reverse airflow in exhaust or ventilation systems. It is designed for a 30-inch fan and 30-inch nominal duct diameter, with horizontal airflow and vertical mounting. Common applications include commercial kitchens, industrial exhaust, and HVAC systems where one-way airflow is critical.

What are the specifications of the Dayton 3HHL8 backdraft damper?

The Dayton 3HHL8 is a universal-mount backdraft damper with a single-panel flat blade made of aluminum. It supports horizontal airflow, vertical mounting, and a maximum air velocity of 2000 fpm. The damper fits a 30-inch fan and 30-inch nominal duct diameter. The manufacturer part number is 3HHL8.

Where to buy the Dayton 3HHL8 backdraft damper worldwide?

3G Electric supplies the Dayton 3HHL8 backdraft damper worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver this Dayton damper to any country.

How to install the Dayton 3HHL8 backdraft damper?

Install the Dayton 3HHL8 damper in a vertical position within a 30-inch duct, ensuring airflow direction is horizontal. Mount the damper securely using the universal-mount frame, and verify the flat blades open freely with airflow. Follow standard HVAC practices for duct sealing and support. Always consult local codes.

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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