Top 10 Best 4 Inch Duct Damper

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..

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 Diameter 100MM4 inch, length 88MM3.5 inch, thickness 0.5MM0.02 inch. Please confirm the size before purchase.. HIGH QUALITY MATERIALS Galvanized steel damper 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 draft blocker set can be widely applied in exhaust fan pipe, a dryer duct, range hoods, heating ducts, vents and other residential and industrial applications..

HOME IMPROVEMENT Perfect for use in AC, dryer vent, heating ducts, extractor or range hoods. Especially suitable for using with exhaust fan, bathroom fan, blower fan, attic fan.. EASY INSTALLATIONThe duct damper opens and closes automatically, allowing only one-directional airflow. The damper blades open only in the outflowing air direction when the shutter is installed. The duct valve for 4-inch duct best installed in a horizontal position and inserted fully into the duct. This also applies to vertical installation.. HIGH-QUALITY MATERIALS The casing of the shutter is made of galvanized steel sheet. The dryer vent valve blades are made of aluminium. The shaft and spring are made of stainless steel. The shutter is able to withstand temperatures up to 140F.. GREAT FOR HOME USE The foam sealing on the damper reduces operation noise and provides extra air tightness. The back draught valve can be inserted into a non-flexible metal or plastic duct directly, but for flexible duct you need to use steel duct clamps to secure the backdraft damper.. SUPPORT GUARANTEEWe have a 24-month warranty. Feel free to contact us with any questions. We will reply within 8 hours..

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..

4 Plastic inline round duct connector with backdraft damper.. Outside dimension of the duct fits 4 inch flex or solid ducting pipe.. Assembly Press on chosen duct - flexible or straight - and use montage glue. tape or steel clamps tighten the connection.. Connect dryer duct, exhaust or any other duct that needs only one way airflow with this backdraft preventer to ensure required air direction, and remove polluted air from accessing habitable areas.. perfect for Heating. cooling or air conditioning - HVAC. bathroom and kitchen air exhaust. Heat-resistant from 5 F to 160 F..

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.

PVC Plastic duct connector with back draft damper. Pipe connector of round ducts. 4 inch.. Made out of plastic - durable and light.. 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 5 F to 160 F..

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..

Inlet Diameter 4 Duct Fitting Item Collar WDamper Pressure Rating 3 W.G.