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neverest - RKI 4“ - 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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*Packaging of actual item may differ from photo shown
- Electrical items MAY be 110 volts.
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neverest - RKI 4“ - Backdraft Damper Shutter Features
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FEATURES 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.
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PREMIUM MATERIAL The housing of the flap is made of galvanized steel. The flap blades are made of aluminum, while the axle and spring are made of stainless steel. Tight sealing and fastening of the duct are 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.
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MULTI-USE Designed for use in AC, dryers, exhaust, extractor or range hoods, heating systems, vents, and other residential, commercial, and industrial HVAC applications.
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PERFORMANCE 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.
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EASY 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.
About Neverest - RKI 4“ - Backdraft Damper Shutter
INSTALLATION Backdraft damper 4 installation is very easy and uncomplicated. The exhaust shutter can be installed either vertically or horizontally. If you are installing the hvac dampener horizontally make sure that the axis is perpendicular to the ground. This will avoid the flaps from hanging open. For vertical installation this isn't a problem The air damper will be pushed into the duct behind the ventilator. The white stripe will create a seal around the damper. The black gummi band should be inserted with the 4 in damper into the duct as well as this reduces loud clapping noises from the 4 inch backdraft damper. Backdraft preventer flaps needs to open with the flow of air from your bathroom fan. The dryer vent draft blocker if installed incorrectly can damage your ventilator therefore make sure the flaps open in the right direction, with the flow of air, going outside. GUARANTEE 4 inline damper is made to the highest quality standards and if your expectations are not met, we offer a full refund and a year long warranty. Please contact us if you have any problems, or questions. Customer satisfaction is very important to us.
