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6 Inch Backdraft Damper, HG POWER 3-in-1 Detachable Damper, Flange, Duct Adaptor with Butterfly Back Check Valve for Kitchen, Panel Size: 8", Duct Size: 6"-7"
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*Packaging of actual item may differ from photo shown
- Electrical items MAY be 110 volts.
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6 Inch Backdraft Damper, HG POWER 3-in-1 Detachable Features
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BACKDRAFT SHUTTER DAMPER - Square Style design air duct connector with the back draft damper, adopts durable environmentally friendly materials, acid and alkali resistant, oil resistant, heat resistant. backdraft damper is able to allow contaminated air to flow out of the home but prevents contaminated air from sweeping back in to the home. Without a backdraft damper in place, horrid odors that sometime infiltrate a certain room in the home would not have a way of dissipating
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WORKING PRINCIPLE - 1. When exhaust started, the air pressure will push and open the butterfly valves, and the odor and exhaust gas is quickly discharged into the public flue. 2. When exhaust is ended, the duct butterfly valves will automatically closed under the principle of gravity. The check valve will remains closed always to to prevent exhaust gas, debris, dust, and odors of the public flue from entering to the room
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VALVE OPEN & CLOSE AUTOMATICALLY - HVAC butterfly valve with rear spring and 17°acute angle tilt design, helps to open the valve smoothly when it was driven by airflow during exhaust process. And butterfly valve will automatically close under gravity after exhaust. ( Note: please install in the specified direction)
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EASY INSTALLATION - Comes with screws for wall mounting. Built-in duct adapter collar, can perfectly works with 150mm hard air ducting and 160-180mm diameter soft and hard air ducting. （Note: CAN'T compatible with 150mm soft air ducting, recommended to fix with aluminum foil tape）(Wall Opening Diameter: 150mm≤inner diameter≤180mm) (If the duct diameter＞150mm; please remove the smallest size duct adapter collar before installation )
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MORE DETAILS - [ Premium ABS Material ] - durable and environmentally friendly; [ Smoke-proof Sealing Strip ] - oil and heat resistant, not easy to stain with oil; [ Rear Spring ] - pushes the valve to open and close; [ Gravity Automatically Valve Closes Design - prevent odor and debris from entering the air duct; [ Corner Arc Design ] - prevent accidental cuts; [ High-Density Sponge Edging ] - reduce gaps with the wall and enhance sealing performance
About 6 Inch Backdraft Damper, HG POWER 3-in-1 Detachable
SPECIFICATION: Material: ABS Color : White Size: 150-180mm Style: Modern Square FEATURES: 1. Premium quality ABS material 2. With two butterfly blades 3. Square modern design 4. Smoke-proof Sealing Strip 5. Sealing Sponge Edging 6. Corner Arc Design 7. Rear spring design 8. Valve open and close automatically 9. Easy installation for exhausting 10. Buit-in duct adapter collar 11. Connect duct hose or exhaust pipe 12. Compatible with diameter between 150mm to 180mm >> A backdraft damper is able to allow contaminated air to flow out of the home but prevents contaminated air from sweeping back in to the home. Without a backdraft damper in place, horrid odors that sometime infiltrate a certain room in the home would not have a way of dissipating. INSTALLATION INSTRUCTIONS: >> Equipped with expansion screws, can be fixed on the wall directly >> The connector part between exhaust pipe and check valve can be sealed with aluminum foil tape >> Built-in duct adapter collar, can perfectly works with 150mm HARD air ducting and 160-180mm diameter SOFT and HARD air ducting. >> 150mm duct adapter collar, compatible with hard air ducting only, CAN'T compatible with 150mm soft air ducting. 160-180mm duct adapter collar, compatible with soft and hard air ducting, recommended to fix with aluminum foil tape. (180mm soft air ducting also can fix with ducting clamp) >> Wall Opening Diameter: 150mm≤inner diameter≤180mm >> 150mm ducting can be installed directly >> Please remove the smallest duct adapter collar before installing ducting with diameter among 160-180mm WHAT YOU GET: 1 * Backdraft Valve 1 * Screws Set
