Top 10 Best 4 Inch Backdraft Damper

An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.. Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts.. 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.. Fit for 4 in. Duct Openings Product Length 5.03 inches Finish Powder Coat.

The backflow damper prevents the ingress of cold or warm air and wind from entering through the ventilation duct. The 4 inch Backdraft damper is made out of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel, 3.5 inches deep and can withstand temperatures from 14 to 140 F. Designed for use in air conditioners AC, dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications. 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. INSTALLATION The backflow flap is installed by inserting it into the ventilation pipe until it stops. The position of the spring should be horizontal for horizontal installations so that it can open and close optimally. The Backdraft shutter is installed so that the damper blades open only in the outflowing air direction.. Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are different..

Quality MaterialThe backdraft damper is made of galvanized steel, the flap leaves are made of aluminu, and the axis and spring are made of stainless steel, which can withstand temperatures up to 50C.. Practical FeaturesThe air duct choke prevents cold air or wind from entering the ventilation duct. The backflow flap opens and closes automatically at low air volumes. The valve is equipped with a smooth-running spring and a rubber gasket that create an airtight seal and grip between the damper and ducts.. Easy Installation The backflow prevention valve is installed by pushing it into the ventilation duct to make it as mobile as possible. When the valve flap is installed horizontally, the position of the spring should be horizontal so that the valve flap can be opened and closed optimally. This also applies to vertical installation. Same for vertical installation.. Multiple UsagesThe draft blocker is designed for use in AC, dryer vent, exhaust, extractor or range hoods, heating systems, fans, vents and other residential, commercial and industrial HVAC applications. The back draft damper can be inserted into a flexible or non-flexible ventilation duct.. Needs Attention This airflow regulating backdraft shutter is installed on the TD lip to improve ventilation by preventing air circulation when the fan is not in use. Plastic pipes are of different sizes and cannot be used with plastic pipes..

Practical 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 tube 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. Wide range of usages these draft blocker set can be widely applied in exhaust fans, extractors, range hoods, heating ducts, vents and other residential and industrial applications. Package includes the package comes with 2 piece backdraft damper and 6 pieces duct clamps The backdraft damper is about 3.46 inches long, 3.9 inches in diameter 6 steel duct clamps can secure the backdraft damper to your ventilation tube or other duct openings Please fasten the loop with screws.

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. Not for use in plastic ducts.. 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.. Bathroom vent draft blocker or exhaust fan shutter is INSTALLED by pushing the hvac damper into the duct, blades open away from exhaust air. The spring needs at least 15 Pa to open correctly.. Opposing blade damper 4 backdraft should be interested behind the bathroom fan or inline fan. This will help weaker booster fans to push open the 4 inch backflow preventer dampener..

MaterialThe 4 inch backdraft damper is made out of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel.. InstallationThe backdraft damper is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation.. FunctionThis airflow regulating backdraft shutter fits over the TD lip and is designed to improve ventilation by preventing air from re-circulating when the fans are not in use.. Wide Application These backdraft dampers can be widely used in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential, commercial and industrial applications.. NoteBack draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are different..

MaterialThe 4 inch backdraft damper is made of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel.. InstallationThe backdraft damper is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation.. FunctionThis airflow regulating backdraft shutter fits over the TD lip and is designed to improve ventilation by preventing air from re-circulating when the fans are not in use.. Wide Application These backdraft dampers can be widely used in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential, commercial and industrial applications.. NoteBack draught valves can be inserted into ventilation ducts which are flexible or non flexible. Cannot be used with plastic ducts as the sizes are different..

Back-flow valve with 2 spring-loaded wings prevents the reverse airflow movement when the ventilation system is turned off. The valve wings open under the pressure created by the airflow and then automatically close with the spring work. The valve casing is made of galvanized steel and the wings are made of aluminium. The valve is equipped with a special foam rubber filler reducing the noise level during its operation and ensuring the integrity of the system. Fit for 4 Duct Openings. An anti-draft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.

4 Inch steel backdraft damper with aluminum valve.. For use with the 4 Inch Round flexible or straight Pipe Ducting systems. Quick and easy to assemble - DIY Press on chosen duct - flex or straight - and by using montage glue. tape or steel clamps tighten the connection.. perfect for Heating. cooling or air conditioning - HVAC. bathroom and kitchen air exhaust.. Heat-resistant from -22 F to 400F. Perfect for indoor and outdoor use.

Lightweight valve wings The valve wings open under the pressure created by the airflow and then automatically close with the spring work. The backflow flap closes automatically at low air volumes. The Backdraft shutter is installed so that the damper blades open only in the outflowing air direction. Keep away from rattling It has an internal foam strip and a smooth-running spring to keep the valve wings from rattling. The position of the spring should be horizontal for horizontal installations so that it can open and close optimally. One-way airflow ducting insert Back-flow valve with 2 spring-loaded wings prevents the reverse airflow movement through the ventilation duct when the ventilation system is turned off. Material The 4 inch Backdraft damper is made out of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel and can withstand temperatures from 14 to 140 F. Wide applications Back draught valves can be inserted into ventilation ducts which are flexible or non-flexible. Designed for use with range hoods, bathroom fans, kitchen and other home HVAC applications. Essential for HVAC ventilation.