Top 9 Backdraft Damper Duct – HVAC Ducting

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1. AC Infinity

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AC Infinity 6" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6” Ducting in Range Hoods and Bathrooms Fans

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AC Infinity #ad - Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts. Duct openings | product Length: 5. 03 inches | Finish: Powder Coat. Mounts horizontally or vertically to prevent backflow and debris from entering ducting. Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow. An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications. Fit for 6 in.
BrandAC Infinity #ad
ManufacturerAC Infinity #ad

2. REPA MARKET

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Draft Stopper, Backflow Preventer, Vent Deflector 4'' Inch, Draft Blocker, Inline Fan Vent, Backdraft Damper Duct

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REPA MARKET #ad - The backflow damper RKI opens and closes automatically. The flap is suitable for retrofitting, since it is completely inside the duct. The position of the spring should be horizontal for horizontal installations so that it can open and close optimally.

Installation: the backflow flap is installed by inserting it into the ventilation pipe until it stops. Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. It has a smooth-running spring and an internal foam strip to keep the blades from rattling and can be installed horizontally or vertically. Damper has 2 valves, exhaust, heating ducts, designed for use in air conditioners AC, dryers, extractor or range hoods, vents and other HVAC applications.

The backflow flap opens and closes automatically at low air volumes. Cannot be used with plastic ducts as the sizes are different. The backdraft shutter is installed so that the damper blades open only in the outflowing air direction. Back draft damper is made for insertion into inch ventilation ducts. It has a strong spring and can be installed either horizontally or vertically.
BrandREPA MARKET #ad
ManufacturerREPA MARKET #ad

3. Klimapartner

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Backdraft Damper Shutter Inline for 4 Inch Dryer Duct for Retrofitting 4 Inch Ducting Prevents Unwanted Drafts in Metal Ducts in Line Draft Blocker

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Klimapartner #ad - This will help weaker booster fans to push open the 4 inch backflow preventer dampener. Bathroom vent draft blocker or exhaust fan shutter is INSTALLED by pushing the hvac damper into the duct, blades open away from exhaust air.

Not for use in plastic ducts. 4 inch duct damper opens and closes automatically, preventiNG unwanted drafts and the duct valve for 4 inch ducting can be installed horizontally or vertically. Opposing blade damper 4 backdraft should be interested behind the bathroom fan or inline fan. 4 inch damper housing is made of galvanized steel and the dryer vent valve flaps are made of aluminium the butterfly damper axis and spring are made of stainless steel.

Professional long life quality is what the klimapartner brand stands for! backflow damper exhaust fan shutters are designed for use in ac units, installation in dryer ducts, bathrooms, STOPPING INFLOW OF AIR from range hoods and heating systems and prevent cold or warm air from entering back into the duct. The spring needs at least 15 Pa to open correctly.
BrandKlimapartner #ad
Manufacturerklimapartner #ad
Height3.94 Inches
Length2.05 Inches
Width3.94 Inches
Part Number4054503017276

4. AC Infinity

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One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4” Ducting in Range Hoods and Bathrooms Fans, AC Infinity 4" Backdraft Damper

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AC Infinity #ad - Duct openings | product Length: 5. 03 inches | Finish: Powder Coat. Mounts horizontally or vertically to prevent backflow and debris from entering ducting. Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts. Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow. Fit for 4 in. An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.
BrandAC Infinity #ad
ManufacturerAC Infinity #ad

5. neverest

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Neverest RK 4" Professional Backdraft Shutter Damper Connector Duct

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neverest #ad - Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. The backflow flap opens and closes automatically at low air volumes. It has a smooth-running spring and an internal foam strip to keep the blades from rattling and can be installed horizontally or vertically.

The 4 inch backdraft damper is made out of a Galvanized steel, while the Axis and spring are made of stainless steel, the flap leaves are made of aluminum, 3.5 inches deep and can withstand temperatures from 14 to 140 °F. The backdraft shutter is installed so that the damper blades open only in the outflowing air direction. Cannot be used with plastic ducts as the sizes are different. The position of the spring should be horizontal for horizontal installations so that it can open and close optimally.

Designed for use in air conditioners AC, exhaust, heating ducts, dryers, extractor or range hoods, vents and other HVAC applications. Installation: the backflow flap is installed by inserting it into the ventilation pipe until it stops. The backflow damper prevents the ingress of cold or warm air and wind from entering through the ventilation duct.
Brandneverest #ad
Manufacturerneverest #ad
Height3.94 Inches
Length3.46 Inches
Width3.94 Inches
Part Number40545030039031

6. Vent Systems

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Heavy-Duty Inline Springs Loaded, Backflow Shutter, One-Way Airflow Ducting Insert, Vent Systems 8'' Inch Backdraft Damper, Inline Fan Vent Deflector

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Vent Systems #ad - This also applies to the vertical installation. Back draft damper for insertion into 8 inch ventilation ducts. Best to use with veNT SYSTEMS hvac parts. The backflow preventer valve is installed by pushing it into the ventilation pipe as far as it will go. Designed for use in ac, heating systems, fans, vents and other residential, extractor or range hoods, exhaust, dryer vent, commercial and industrial HVAC applications.

In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction. The backflow damper opens and closes automatically. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. The housing of the flap is made of galvanized steel, the flap blades are made of aluminum, the axle and spring are made of stainless steel.

This means that no cold air / wind or smell can penetrate the ventilation pipe from the outside. The rubber seal prevents loud rattling when the flap blades open and close. Duct draft stopper prevent cold air or wind from entering the ventilation pipe. The flap is suitable for retrofitting, since it is completely inside the duct. A tight sealing and fastening of the duct is achieved by the rubber strip attached to the inside of the draft blocker damper.
BrandVent Systems #ad
ManufacturerVent Systems #ad

7. Ozo Brothers

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Backdraft Damper Duct 8" inch / 200mm

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Ozo Brothers #ad - Backdraft dampers with galvanized steel collar and lightweight aluminum damper blades. Manufactured of heavy-gauge galvanized steel with heavy duty springs // Spring loaded for positive closure. Excellent quality back draft dampers. They prevent back draft air when your fans are off. Ideal for use with intake or exhaust duct systems.
BrandOzo Brothers #ad
ManufacturerOzo Brothers #ad

8. Klimapartner

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Klimapartner RKI 5" Professional Backdraft Damper Inline Spring Loaded

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Klimapartner #ad - The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. Designed for use in ac, extractor or range hoods, dryers, exhaust, vents and other residential, heating systems, commercial and industrial HVAC applications.

Functionality: duct draft stopper prevent cold air or wind from entering the ventilation pipe. A tight sealing and fastening of the duct is achieved by the rubber strip attached to the outside of the draft blocker damper. In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction. The rubber seal prevents loud rattling when the flap blades open and close. Back draft damper for insertion into 5 inch ventilation ducts. Installation: the backflow preventer valve is installed by pushing it into the ventilation pipe as far as it will go.

The housing of the flap is made of galvanized steel, the flap blades are made of aluminum, the axle and spring are made of stainless steel. The backflow damper RKI opens and closes automatically. It has a strong spring and can be installed either horizontally or vertically. This means that no cold air / wind can penetrate the ventilation pipe from the outside. This also applies to the vertical installation.
BrandKlimapartner #ad
Manufacturerklimapartner #ad
Weight0.33 Pounds

9. Honoson

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4 Inch Backdraft Damper Galvanized Steel Inline Fan Vent with Spring-Loaded Folding Blades and 2 Pieces Duct Clamps for Ducting in Range Hoods and Bathrooms Fans

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Honoson #ad - Package includes: the package comes with 1 piece backdraft damper and 2 pieces duct clamps; The backdraft damper is about 3. 46 inches long, 3. 9 inches in diameter; 2 steel duct clamps can secure the backdraft damper to your ventilation pipe or other duct openings; Please fasten the loop with screws.

Wide range of usages: these draft blocker set can be widely applied in ACs, heating ducts, range hoods, extractors, exhaust fans, vents and other residential and industrial applications. Special design: backdraft damper has a smooth-running spring and an internal foam strip to keep the blades from rattling; The backflow flap opens and closes automatically at low air volumes. Reliable materials: galvanized steel damper is made of quality galvanized steel, the flap leaves are made of aluminum, and the axis and spring are made of stainless steel, which all are strong and serve you for a long time.

Easy to install: the backflow flap is installed by inserting it into the ventilation pipe until it stops; The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally; And it can be installed horizontally or vertically.
BrandHonoson #ad
ManufacturerHonoson #ad