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Dayton 33"H-W 5 1/4"L SS Backdraft Dampr: For 30 in Fan, Double Panel, 33 in H - Wall-Mount Backdraft Dampers
DaytonWall-Mount Backdraft Dampers

Dayton 33"H-W 5 1/4"L SS Backdraft Dampr: For 30 in Fan, Double Panel, 33 in H

The Dayton 33"H-W 5 1/4"L SS Backdraft Damper (SKU 4FZJ9) is a wall-mount backdraft damper with flat blades, designed for horizontal airflow and vertical mounting. It has a maximum air velocity of 2500 fpm and is…

SKU 3G-OTH-77214

Brand
Dayton
Item
33"H-W 5 1/4"L SS Backdraft Dampr: For 30 in Fan, Double Panel, 33 in H
Category
Wall-Mount Backdraft Dampers
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Technical Specifications

Dayton
Manufacturer Part Number
4FZJ9
Type
Double Panel, 33 in W, Horizontal
D
2 in
H
33 in
Blade Type
Flat Blade
Airflow Direction
Horizontal
Mounting Position
Vertical
Maximum Air Velocity
2500 fpm
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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton 33"H-W 5 1/4"L SS Backdraft Damper (SKU 4FZJ9) is a wall-mount backdraft damper with flat blades, designed for horizontal airflow and vertical mounting. It has a maximum air velocity of 2500 fpm and is intended for use with a 30-inch fan.

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 33"H-W 5 1/4"L SS Backdraft Damper used for?

This Dayton backdraft damper is used to prevent reverse airflow in ventilation systems. It is designed for horizontal airflow and vertical mounting, typically installed with a 30-inch fan to allow exhaust flow in one direction while blocking backdrafts.

What are the specifications of the Dayton 4FZJ9 backdraft damper?

The Dayton 4FZJ9 backdraft damper has flat blades, a maximum air velocity of 2500 fpm, and dimensions of 33 inches high by 33 inches wide by 2 inches deep. It is designed for horizontal airflow and vertical mounting, with a 5 1/4-inch blade length.

Where to buy the Dayton 4FZJ9 backdraft damper worldwide?

3G Electric supplies the Dayton 4FZJ9 backdraft damper worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the Dayton 4FZJ9 backdraft damper?

Install the Dayton 4FZJ9 damper in a vertical mounting position with the airflow direction set horizontally. Ensure the damper is securely fastened to the wall or duct opening. Follow standard HVAC practices for sealing and alignment 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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