Top 6 Best 4 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.

PRODUCT SIZE The 4 Inch backdraft damper diameter 100MM4 inch, length 88MM3.5 inch, thickness 0.5MM0.02 inch. Please confirm the size before purchase.. HIGH QUALITY MATERIALS 4 inch Inline Fan Vent Deflector is made of quality galvanized steel, and the axis and spring are made of stainless steel, product Very solid and well made, good tension on the spring.. EASY TO 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.. PRACTICAL DESIGN Backdraft damper has a smooth-running spring. The backflow flap opens and closes automatically at low air volumes. Backdraft damper can ventilate an area to avoid toxic fumes from building up.. WIDE RANGE OF USAGES These One-Way Airflow Ducting Insert can be widely applied in exhaust fan pipe, a dryer duct, range hoods, heating ducts, vents and other residential and industrial applications..

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.

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 draft damper for insertion into 4 inch ventilation ducts. The backflow damper RKI opens and closes automatically. It has a strong spring and can be installed either horizontally or vertically. 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 outside of the draft blocker damper. The rubber seal prevents loud rattling when the flap blades open and close. 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. Designed for use in AC, dryers, exhaust, extractor or range hoods, heating systems, vents and other residential, commercial and industrial HVAC applications. FUNCTIONALITY Duct draft stopper prevent cold air or wind from entering the ventilation pipe. In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction. This means that no cold air wind can penetrate the ventilation pipe from the outside.. INSTALLATION The backflow Preventer valve 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..

Back draft damper for insertion into 4 inch ventilation ducts. The backflow damper opens and closes automatically. It has a strong spring and can be installed either horizontally or vertically. The flap is suitable for retrofitting, since it is completely inside the duct. Easy DIY. Designed to provide anti back draught and fit in between Solid Plastic Ducting, Flexible Ducting.. Designed for use in AC, dryer vent, exhaust, extractor or range hoods, heating systems, fans, vents and other residential, commercial and industrial HVAC applications. Best to use with VENT SYSTEMS hvac parts.. Duct draft stopper prevent cold air or wind from entering the ventilation pipe. In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction. This means that no cold air wind or smell can penetrate the ventilation pipe from the outside.. The backflow Preventer valve 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..

Design 4 Inch Damper Stopper with 2 valves designed for air conditioners AC, dryers, exhaust units, hoods or range hoods, heating ducts, vents and other HVAC applications. Valve opens and closes automatically at low airflow. It has a smooth running spring and an internal foam strip to prevent rattling of the blade and can be mounted horizontally or vertically.. Feature Backdraft damper for insertion into inch ventilation ducts. The return air damper RKI opens and closes automatically. It has a strong spring and can be mounted horizontally or vertically. The flip-up cover is suitable for retrofitting because it sits completely inside the duct.. Instruction Install by inserting it into the vent pipe until it stops. The spring should be positioned horizontally for horizontal installation so that it can optimally open and close. Install the return louvers with the damper blades open in the outlet direction only.. Application Return air valves can be inserted into flexible or non-flexible ventilation ducts. Perfect for air conditioners AC, dryers, exhaust units, hoods or range hoods, heating ducts, vents and other HVAC applications. They cannot be used with plastic ducting because of the difference in size.. 100 Satisfied Service Enjoy a smooth frustration free experience with our 100 Satisfied Service in one Month.

Size of Backdraft Damper - 4 inch 100mm in diameter, 3.5inch 88mm in length, 0.5MM0.02 inch in thickness, 2 in package. Please confirm the size before purchase.. Durable Premium - 4 backdraft damper 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.. Preventing Unwanted Drafts - 4 inch backdraft damper opens and closes automatically to prevent backflow and debris from entering ducting.. Application Scenarios - 4 backdraft damper fit for 4 Duct Openings. Backdraft damper 4 inch designed for use with range hoods, bathroom fans and other home HVAC applications. Not for use in plastic ducts.. Easy to Installation - The 4 inch 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..

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..