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CANARM Wall-Mount Backdraft Damper, 20 in Nominal Duct Dia, Aluminum - Wall-Mount Backdraft Dampers
CANARMWall-Mount Backdraft Dampers

CANARM Wall-Mount Backdraft Damper, 20 in Nominal Duct Dia, Aluminum

The CANARM Manual Damper (SKU SR3220X20, MPN SR3220X20) is a wall-mount backdraft damper designed for a 20-inch fan and 20-inch nominal duct diameter. It features flat blades with horizontal airflow direction…

SKU 3G-OTH-75356

Brand
CANARM
Item
Wall-Mount Backdraft Damper, 20 in Nominal Duct Dia, Aluminum
Part Number
SR3220X20
Category
Wall-Mount Backdraft Dampers
Available to Order
Also known as:SR3220X20CANARM
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Technical Specifications

CANARM
Manufacturer Part Number
SR3220X20
Type
For 20 in Nominal Duct Dia, 4, 20 in W, Aluminum
Blade Type
Flat Blade
Airflow Direction
Horizontal

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

Product Description

The CANARM Manual Damper (SKU SR3220X20, MPN SR3220X20) is a wall-mount backdraft damper designed for a 20-inch fan and 20-inch nominal duct diameter. It features flat blades with horizontal airflow direction, measures 20 inches in height, 20 inches in width, and 2 1/4 inches in depth, and is constructed from aluminum.

Frequently Asked Questions

What is the CANARM manual damper used for?

The CANARM manual damper (MPN SR3220X20) is a wall-mount backdraft damper used to control airflow in industrial ventilation systems. It prevents reverse airflow when the fan is off, making it suitable for exhaust or intake applications in commercial buildings, warehouses, and manufacturing facilities.

What are the specifications of the CANARM manual damper?

The CANARM manual damper is designed for a 20-inch fan and 20-inch nominal duct diameter. It has flat blades, horizontal airflow direction, and measures 20 inches high by 20 inches wide by 2 1/4 inches deep. The construction material is aluminum, and the manufacturer part number is SR3220X20.

Where to buy the CANARM manual damper worldwide?

3G Electric supplies the CANARM manual damper (SKU 3G-OTH-75356) 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; we source and deliver this damper to any country.

How to install a CANARM manual damper?

Install the CANARM manual damper in a horizontal duct run with the airflow arrow pointing away from the fan. Secure it to the duct using sheet metal screws or flanges, ensuring the damper blade moves freely. For wall-mount applications, seal the perimeter with mastic or foil tape to prevent air leaks.

Used in

Common applications for CANARM
Commercial kitchen exhaust — CANARM upblast exhauster ALX135UBT10033 with 13 1/2 in wheel and 1,405 cfm for small hood systems.
Large restaurant ventilation — CANARM belt-drive fan ALX210UBT30150P with 21 1/4 in wheel and 4,792 cfm for high-volume exhaust.
Industrial process exhaust — CANARM wall-mount belt-drive fan ALX150UBT10075 with 15 in wheel and 2,261 cfm for fume removal.
High-static pressure kitchen exhaust — CANARM upblast exhauster ALX165UBT30100P with 16 1/2 in wheel and 2,598 cfm.
Three-phase commercial kitchen — CANARM belt-drive fan ALX150UBT30100M with 15 in wheel and 2,443 cfm at 230/460V.
Heavy-duty kitchen exhaust — CANARM upblast exhauster ALX180UBT30200P with 18 1/4 in wheel and 3,967 cfm for large cooking lines.
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CANARM Products

3G Electric supplies CANARM 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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