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Dayton 21 in H x 21 in W Wall-Mount Backdraft Damper, Single Panel, 3 in D - Wall-Mount Backdraft Dampers
DaytonWall-Mount Backdraft Dampers

Dayton 21 in H x 21 in W Wall-Mount Backdraft Damper, Single Panel, 3 in D

The Dayton is a wall-mount backdraft damper with extruded aluminum flat blades, designed for horizontal airflow in a vertical mounting position. It has a maximum air velocity of 3250 fpm and is sized for an 18-inch…

SKU 3G-OTH-76230

Brand
Dayton
Item
21 in H x 21 in W Wall-Mount Backdraft Damper, Single Panel, 3 in D
Category
Wall-Mount Backdraft Dampers
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dayton
Type
Single Panel, 21 in W, Wall
D
3 in
H
21 in
Blade Type
Flat Blade
Airflow Direction
Horizontal
Mounting Position
Vertical
Maximum Air Velocity
3250 fpm

Technical Documents

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

Product Description

The Dayton is a wall-mount backdraft damper with extruded aluminum flat blades, designed for horizontal airflow in a vertical mounting position. It has a maximum air velocity of 3250 fpm and is sized for an 18-inch fan, with dimensions of 21 inches high, 21 inches wide, and 3 inches deep.

Frequently Asked Questions

What is the Dayton backdraft damper used for?

The Dayton is a wall-mount backdraft damper that prevents reverse airflow in exhaust systems. It is used with 18-inch fans in commercial or industrial ventilation, allowing horizontal airflow only when the fan operates and closing automatically when the fan stops.

What are the specifications of the Dayton damper?

The Dayton has extruded aluminum flat blades, a maximum air velocity of 3250 fpm, and dimensions of 21 in H x 21 in W x 3 in D. It is designed for horizontal airflow with vertical mounting and fits an 18-inch fan. The manufacturer part number is .

Where to buy the Dayton damper worldwide?

3G Electric supplies the Dayton 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 a quote for your region.

How to install the Dayton backdraft damper?

Mount the Dayton vertically on a wall with the airflow direction arrow pointing horizontally. Secure the damper frame to the wall opening using appropriate fasteners. Ensure the blades move freely and the damper is level for proper gravity-assisted closing.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
23"H-W 6.5"L Extrd Alu Backdraft Dampr: For 20 in Fan, Single Panel, 23 in H, 23 in W, 3 in D, Wall
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23"H-W 6.5"L Extrd Alu Backdraft Dampr: For 20 in Fan, Single Panel, 23 in H, 23 in W, 3 in D, Wall
19"H-W 6.5"L Extrd Alu Backdraft Dampr: For 16 in Fan, Single Panel, 19 in H, 19 in W, 3 in D, Wall
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19"H-W 6.5"L Extrd Alu Backdraft Dampr: For 16 in Fan, Single Panel, 19 in H, 19 in W, 3 in D, Wall
33"H-W 6.5"L Extrd Alu Backdraft Dampr: For 30 in Fan, Single Panel, 33 in H, 33 in W, 3 in D, Wall
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33"H-W 6.5"L Extrd Alu Backdraft Dampr: For 30 in Fan, Single Panel, 33 in H, 33 in W, 3 in D, Wall
27"H-W 6.5"L Extrd Alu Backdraft Dampr: For 24 in Fan, Single Panel, 27 in H, 27 in W, 3 in D, Wall
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27"H-W 6.5"L Extrd Alu Backdraft Dampr: For 24 in Fan, Single Panel, 27 in H, 27 in W, 3 in D, Wall
15"H-W 6.5"L Extrd Alu Backdraft Dampr: For 12 in Fan, Single Panel, 15 in H, 15 in W, 3 in D, Wall
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15"H-W 6.5"L Extrd Alu Backdraft Dampr: For 12 in Fan, Single Panel, 15 in H, 15 in W, 3 in D, Wall
39"H-W 6.5"L Extrd Alu Backdraft Dampr: For 36 in Fan, Single Panel, 39 in H, 39 in W, 3 in D, Wall
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39"H-W 6.5"L Extrd Alu Backdraft Dampr: For 36 in Fan, Single Panel, 39 in H, 39 in W, 3 in D, Wall

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Wall-mount backdraft damper with single-panel flat blade design. Measures 15 inches high by 15 inches wide by 2.5 inches deep. Supports horizontal airflow direction and vertical mounting. Maximum air velocity of 2500 fpm. Used to prevent reverse airflow in ventilation systems
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This wall-mount backdraft damper features a single-panel flat blade design for horizontal airflow and vertical mounting. It measures 13 inches high by 13 inches wide by 2.5 inches deep, with a maximum air velocity of 2500 fpm. Suitable for exhaust and intake ventilation systems to prevent reverse airflow when the fan is off
Wall-mount backdraft damper with flat blades for horizontal airflow in vertical mounting position. Single-panel design, 23 in high, 23 in wide, 2 in deep. Maximum air velocity 2500 fpm. Used to prevent reverse airflow in ventilation systems, typically paired with a 20-inch fan
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