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Dayton 41.75"H-W 4.5"L Aluminum Backdraft Dampr: For 42 in Fan, For 42 in Nominal Duct Dia - Universal-Mount Backdraft Dampers
DaytonUniversal-Mount Backdraft Dampers

Dayton 41.75"H-W 4.5"L Aluminum Backdraft Dampr: For 42 in Fan, For 42 in Nominal Duct Dia

The Dayton is a universal-mount backdraft damper designed for use with a 42-inch fan and 42-inch nominal duct diameter. It features a single-panel, flat blade construction with a vertical airflow direction and…

SKU 3G-OTH-74721

Brand
Dayton
Item
41.75"H-W 4.5"L Aluminum Backdraft Dampr: For 42 in Fan, For 42 in Nominal Duct Dia
Category
Universal-Mount Backdraft Dampers
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Dayton
Type
For 42 in Nominal Duct Dia, Single Panel
Blade Type
Flat Blade
Airflow Direction
Vertical
Mounting Position
Vertical
Maximum Air Velocity
2000 fpm

Technical Documents

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

Product Description

The Dayton is a universal-mount backdraft damper designed for use with a 42-inch fan and 42-inch nominal duct diameter. It features a single-panel, flat blade construction with a vertical airflow direction and vertical mounting position, supporting a maximum air velocity of 2000 fpm. This aluminum damper measures 41.75 inches in height and width with a 4.5-inch length.

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 backdraft damper used for?

The Dayton is a universal-mount backdraft damper that prevents reverse airflow in vertical exhaust or intake systems. It is designed for 42-inch fans and 42-inch nominal duct diameters, with a single-panel flat blade that opens under forward airflow and closes by gravity when flow stops.

What are the specifications of the Dayton backdraft damper?

The Dayton has a 41.75-inch height and width, 4.5-inch length, and supports a maximum air velocity of 2000 fpm. It features a flat blade type, vertical airflow direction, and vertical mounting position. The aluminum construction resists corrosion in industrial environments.

Where to buy the Dayton backdraft damper worldwide?

3G Electric supplies the Dayton backdraft damper to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this universal-mount damper for 42-inch duct systems.

How to install the Dayton backdraft damper?

Install the Dayton in a vertical duct section with airflow direction matching the arrow on the damper frame. Ensure the damper is level so the flat blade closes freely by gravity. Secure with appropriate fasteners through the mounting flanges, and verify blade movement 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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This backdraft damper is designed for horizontal mounting in duct systems with horizontal airflow. It features a flat blade construction and is rated for a maximum air velocity of 2000 fpm. Suitable for use with a 12-inch fan and 14-inch nominal duct diameter in commercial ventilation and exhaust applications
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This backdraft damper is designed for horizontal mounting in duct systems with horizontal airflow. It features a flat blade construction and is rated for a maximum air velocity of 2000 fpm. Suitable for use with a 12-inch fan and 14-inch nominal duct diameter in commercial ventilation and exhaust applications
This universal-mount backdraft damper is designed for a 30-inch nominal duct diameter and features a single-panel flat blade construction. It supports horizontal airflow and vertical mounting, with a maximum air velocity of 2000 fpm. Suitable for use in exhaust or ventilation systems where reverse airflow prevention is required
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This universal-mount backdraft damper is designed for a 30-inch nominal duct diameter and features a single-panel flat blade construction. It supports horizontal airflow and vertical mounting, with a maximum air velocity of 2000 fpm. Suitable for use in exhaust or ventilation systems where reverse airflow prevention is required
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This universal-mount backdraft damper is designed for horizontal airflow and vertical mounting. It features a single panel with flat blades and measures 26 3/4 inches high by 26 3/4 inches wide. Suitable for use in ventilation systems to prevent reverse airflow, it handles a maximum air velocity of 2250 fpm
This universal-mount backdraft damper prevents reverse airflow in horizontal duct systems. It features flat aluminum blades in a double-panel design, rated for horizontal mounting and horizontal airflow with a maximum air velocity of 2000 fpm. Suitable for industrial ventilation and exhaust applications requiring one-way airflow
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This universal-mount backdraft damper prevents reverse airflow in horizontal duct systems. It features flat aluminum blades in a double-panel design, rated for horizontal mounting and horizontal airflow with a maximum air velocity of 2000 fpm. Suitable for industrial ventilation and exhaust applications requiring one-way airflow
This universal-mount backdraft damper is 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 and is suitable for preventing reverse airflow in ventilation systems
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This universal-mount backdraft damper is 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 and is suitable for preventing reverse airflow in ventilation systems
This universal-mount backdraft damper is designed for 18-inch nominal duct diameters and vertical mounting. It features a flat blade type and supports vertical airflow direction. Suitable for preventing reverse airflow in exhaust or intake ducts, it handles a maximum air velocity of 2000 fpm
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This universal-mount backdraft damper is designed for 18-inch nominal duct diameters and vertical mounting. It features a flat blade type and supports vertical airflow direction. Suitable for preventing reverse airflow in exhaust or intake ducts, it handles a maximum air velocity of 2000 fpm
This single-panel backdraft damper is constructed of aluminum with a front flange. It measures 35 inches wide by 1 5/8 inches deep and is designed for horizontal airflow with vertical mounting. Suitable for use in ventilation systems to prevent reverse airflow, it supports a maximum air velocity of 2250 fpm
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This single-panel backdraft damper is constructed of aluminum with a front flange. It measures 35 inches wide by 1 5/8 inches deep and is designed for horizontal airflow with vertical mounting. Suitable for use in ventilation systems to prevent reverse airflow, it supports a maximum air velocity of 2250 fpm
This universal-mount backdraft damper is designed for 60-inch nominal duct diameter and 60-inch fans. It features a double-panel aluminum construction with flat blades, supporting vertical airflow and horizontal mounting. Maximum air velocity is 2000 fpm. Suitable for preventing reverse airflow in ventilation systems
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This universal-mount backdraft damper is designed for 60-inch nominal duct diameter and 60-inch fans. It features a double-panel aluminum construction with flat blades, supporting vertical airflow and horizontal mounting. Maximum air velocity is 2000 fpm. Suitable for preventing reverse airflow in ventilation systems