Top 10 Best 4 Inch 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.

Back draft damper is made for insertion into 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. Damper has 2 valves, designed for use in air conditioners AC, dryers, exhaust, extractor or range hoods, heating ducts, vents and other HVAC applications. 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.. 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. 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..

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.

Imperial BM0242 4 CI Damper. IMPERIAL MFG GROUP.

HOME IMPROVEMENTEspecially suitable for inserting into dryer duct. Perfect for use in bathrooms, garages, sheds, campers, stopping inflow of air from AC units, range hood extractors, heating systems.. 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 MATERIALSThe 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.. GREAT FOR HOME USEThe inner rubber seal is used for better tightness and for noise reduction. The outer foam sealing strip provides good tightening and fixing of the backdraft damper inside the duct. The back draught valve can be inserted into a non-flexible metal or plastic duct directly, but for flexible duct you must 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 24 hours..

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..

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..

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. Wide range of usages these draft blocker set can be widely applied in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential and industrial applications. 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.

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..

4-Inch Galvanized Sheet Metal Round volume damper with manual quadrant adjustment handle. Ideal for use in branch duct lines for adjusting supply or return air volume. Field installed into sheet metal starting collars or register boots. Consult your local building codes for approved installation practices.