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Dayton Wall-Mount Backdraft Damper, 21 in W, Fiberglass, Rear Flange, Horizontal - Wall-Mount Backdraft Dampers
DaytonWall-Mount Backdraft Dampers

Dayton Wall-Mount Backdraft Damper, 21 in W, Fiberglass, Rear Flange, Horizontal

The Dayton Manual Damper (SKU 3G-OTH-77084) is a wall-mount backdraft damper designed for use with an 18-inch fan. It features a flat blade type, horizontal airflow direction, and vertical mounting position, with…

SKU 3G-OTH-77084

Also listed as: GGS47522 · GGS 47522 · GGS-47522

Brand
Dayton
Item
Wall-Mount Backdraft Damper, 21 in W, Fiberglass, Rear Flange, Horizontal
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
Manufacturer Part Number
GGS_47522
Type
21 in W, Fiberglass, Rear Flange, Horizontal
D
3 3/8 in
H
21 in
Blade Type
Flat Blade
Airflow Direction
Horizontal
Mounting Position
Vertical
Maximum Air Velocity
Not Rated

Technical Documents

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

Product Description

The Dayton Manual Damper (SKU 3G-OTH-77084) is a wall-mount backdraft damper designed for use with an 18-inch fan. It features a flat blade type, horizontal airflow direction, and vertical mounting position, with dimensions of 21 inches in height, 21 inches in width, and 3 3/8 inches in depth. Constructed with a fiberglass rear flange, this damper has a maximum air velocity rating of Not Rated.

Frequently Asked Questions

What is the Dayton manual damper used for?

The Dayton manual damper is a wall-mount backdraft damper designed to regulate airflow in industrial ventilation systems. It is used with an 18-inch fan to prevent reverse airflow, making it suitable for exhaust or intake applications where horizontal airflow and vertical mounting are required.

What are the specifications of the Dayton manual damper?

The Dayton manual damper (MPN GGS_47522) has a flat blade type, horizontal airflow direction, and vertical mounting position. It measures 21 inches in height, 21 inches in width, and 3 3/8 inches in depth, with a fiberglass rear flange. Maximum air velocity is not rated.

Where to buy the Dayton manual damper worldwide?

3G Electric supplies the Dayton manual damper (SKU 3G-OTH-77084) 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 lead time.

How to install the Dayton manual damper?

Install the Dayton manual damper in a vertical mounting position with the rear flange facing the duct. Ensure the 18-inch fan is properly aligned for horizontal airflow. Secure the damper to the wall or ductwork using appropriate fasteners, and verify the flat blades move freely before 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 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
This wall-mount backdraft damper features a flat blade type and is designed for horizontal airflow with vertical mounting. Constructed with a fiberglass rear flange, it is suitable for ventilation systems where corrosion resistance is needed. Dimensions: 22 7/8 in height, 22 7/8 in width, 3 3/8 in depth
Dayton
This wall-mount backdraft damper features a flat blade type and is designed for horizontal airflow with vertical mounting. Constructed with a fiberglass rear flange, it is suitable for ventilation systems where corrosion resistance is needed. Dimensions: 22 7/8 in height, 22 7/8 in width, 3 3/8 in depth
Manual Damper: For 24 in Fan, 27 1/8 in H, 27 1/8 in W, 3 3/8 in D, Fiberglass, Rear Flange, Wall (MPN GGS_47524)
Dayton
Manual Damper: For 24 in Fan, 27 1/8 in H, 27 1/8 in W, 3 3/8 in D, Fiberglass, Rear Flange, Wall (MPN GGS_47524)
This wall-mount backdraft damper is designed for horizontal airflow in vertical mounting positions. It features a flat blade type and a fiberglass rear flange. Dimensions: 15 in height, 15 in width, 3 3/8 in depth. Suitable for ventilation systems requiring one-way airflow control
Dayton
This wall-mount backdraft damper is designed for horizontal airflow in vertical mounting positions. It features a flat blade type and a fiberglass rear flange. Dimensions: 15 in height, 15 in width, 3 3/8 in depth. Suitable for ventilation systems requiring one-way airflow control
23"H-W 6.5"L Fiberglass Backdraft Damper: For 20 in Fan, Single Panel, 23 in H, 23 in W, 3 in D
Dayton
23"H-W 6.5"L Fiberglass Backdraft Damper: For 20 in Fan, Single Panel, 23 in H, 23 in W, 3 in D
This wall-mount backdraft damper is designed for vertical mounting in exhaust systems to prevent reverse airflow. It features a single panel with flat blades, allowing horizontal airflow in one direction. Suitable for use with fans in ventilation applications, it supports a maximum air velocity of 2500 fpm. Dimensions: 33 in height, 33 in width, 3 in depth
Dayton
This wall-mount backdraft damper is designed for vertical mounting in exhaust systems to prevent reverse airflow. It features a single panel with flat blades, allowing horizontal airflow in one direction. Suitable for use with fans in ventilation applications, it supports a maximum air velocity of 2500 fpm. Dimensions: 33 in height, 33 in width, 3 in depth
19"H-W 6.5"L Fiberglass Backdraft Damper: For 16 in Fan, Single Panel, 19 in H, 19 in W, 3 in D
Dayton
19"H-W 6.5"L Fiberglass Backdraft Damper: For 16 in Fan, Single Panel, 19 in H, 19 in W, 3 in D

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Aluminum wall-mount backdraft damper with single panel flat blade design. Mounts vertically for horizontal airflow, maximum air velocity 2250 fpm. Prevents reverse airflow in exhaust systems when fan is off
Dayton
Aluminum wall-mount backdraft damper with single panel flat blade design. Mounts vertically for horizontal airflow, maximum air velocity 2250 fpm. Prevents reverse airflow in exhaust systems when fan is off
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
Dayton
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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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
This wall-mount backdraft damper is designed for use in ventilation systems to prevent reverse airflow. It features a double-panel, flat blade construction with horizontal airflow direction and vertical mounting. Suitable for applications where a 57-inch wide opening requires backdraft prevention, supporting a maximum air velocity of 3000 fpm
Dayton
This wall-mount backdraft damper is designed for use in ventilation systems to prevent reverse airflow. It features a double-panel, flat blade construction with horizontal airflow direction and vertical mounting. Suitable for applications where a 57-inch wide opening requires backdraft prevention, supporting a maximum air velocity of 3000 fpm
Wall-mount backdraft damper with single-panel flat blade construction. Designed for vertical mounting with horizontal airflow direction. Maximum air velocity of 2500 fpm. Used in exhaust or intake systems to prevent reverse airflow
Dayton
Wall-mount backdraft damper with single-panel flat blade construction. Designed for vertical mounting with horizontal airflow direction. Maximum air velocity of 2500 fpm. Used in exhaust or intake systems to prevent reverse airflow
This wall-mount backdraft damper features a single panel with flat blades, designed for horizontal airflow in vertical mounting positions. It measures 19 inches high by 19 inches wide by 2 1/2 inches deep and supports a maximum air velocity of 2500 fpm. Suitable for ventilation systems requiring one-way airflow control
Dayton
This wall-mount backdraft damper features a single panel with flat blades, designed for horizontal airflow in vertical mounting positions. It measures 19 inches high by 19 inches wide by 2 1/2 inches deep and supports a maximum air velocity of 2500 fpm. Suitable for ventilation systems requiring one-way airflow control
This wall-mount backdraft damper features flat aluminum blades and is designed for horizontal airflow with vertical mounting. It prevents reverse airflow in ventilation systems, allowing air to flow in one direction only. Suitable for use with fans in exhaust or intake applications, it supports a maximum air velocity of 2500 fpm
Dayton
This wall-mount backdraft damper features flat aluminum blades and is designed for horizontal airflow with vertical mounting. It prevents reverse airflow in ventilation systems, allowing air to flow in one direction only. Suitable for use with fans in exhaust or intake applications, it supports a maximum air velocity of 2500 fpm
Wall-mount backdraft damper with single-panel flat-blade construction. Designed for horizontal airflow and vertical mounting. Measures 42 inches high, 42 inches wide, and 2.5 inches deep. Maximum air velocity 2500 fpm. Suitable for preventing reverse airflow in ventilation systems
Dayton
Wall-mount backdraft damper with single-panel flat-blade construction. Designed for horizontal airflow and vertical mounting. Measures 42 inches high, 42 inches wide, and 2.5 inches deep. Maximum air velocity 2500 fpm. Suitable for preventing reverse airflow in ventilation systems