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Your cart is empty. Durable Material:
The body is made from stainless steel material and the flap blade is made from aluminum, durable material for long-lasting performance. Constructed with sturdy components to ensure reliability.
Size: Port Outer Diameter: 100mm / 4 inch; Length:160mm / 6.3 inch
Manual Airflow Adjustment: Enjoy a comfortable environment with our damper sleeve, designed to use the manual handle on the valve to adjust the air volume from multiple angles. This is helpful to control room temperature and stop the backdraft. It is also important to know that the damper sleeve should be installed in places where you can easily control the handle.
Edge Silicone Sealing: Our damper sleeve features a rubber seal ring inside, providing good air tightness and it can prevent the air duct valve from leaking when it is closed. Also, this innovative design ensures smooth and silent operation when the flap board opens or closes.
Easy to install: Simply slide it directly into your ventilation pipe, and then use the pipe clamp and tape for a secure fit. Save time and effort with our design that allows for quick and straightforward installation.
Applications:
The manual volume damper is used for air volume regulation in an air ventilation system, and it is widely used in the HVAC industry. With that installed in your HVAC systems, you can easily control the airflow rate or close off an air duct if needed, to some extent, it will increase the energy efficiency of your system.
SaltRunner
2025-08-06 12:08:14
This is an excellent damper unit. When you order it, you should know that the housing is Stainless steel. This means that you will not be able to use regular sheet metal screws on it without cutting a hole first. I had to use a mechanical punch to cut holes in it. The stainless steel is nearly impossible to drill with a hand drill (you would need a drill press & lubrication jet to keep the drill from overheating).Once that problem was solved, it was installed easily and worked flawlessly. It is super sturdy and well-built because it is stainless steel. I am super happy with the unit.
Timothy Casa De Calvo III
2025-07-03 15:01:45
I am an HVAC ServiceInstallation Tech, this is an great product and very solid Stainless steel, you wont be able to use a self tapping screw or Comercial drill bit through this.. The Air seal is a 100% seal!!.. even by the holes....for for pipe sizing end specs:---the damper will fit nicely inside of a 6" round duct all the way to the Rib as long as it is not crimped on its end- it needs to be a flat raw end. I just used aluminum foil tape and taped it to the round duct, worked great---6inch duct flex fits perfectly over the damper end and zip tie it to securei used this for our fresh air intake for the house that goes to the return duct..-closed for summer to keep out the humidity-open during the winter to allow fresh air in to keep from getting stale air and refrain from getting a stuffy feeling
sms
2025-06-27 11:49:33
Well built. Worked good
Eric C.
2025-06-15 14:53:17
very well made. Can't believe it is this nice for such a low price.
Frank A.
2025-06-11 11:09:27
Overall, I like the item it is a high quality material. I am a maintenance manager and know good material when I see it. I have been using it for two months so far have two different sizes
William Hather
2025-06-09 10:45:35
After 3 tries, this is the one. Finally, a good valve with a good air seal in the middle. It's got a rubber gasket inside the flange that seals this one up nice. Almost air tight.
joshua h.
2025-06-04 10:10:18
Exactly as described. Very good quality. A little pricey but the adjustment is smooth. Would buy again.
db2471
2025-05-17 10:59:36
I built my house a few years ago and have always had hot/cold spots and hot cold rooms, I hired an HVAC company to install the original furnace/AC system and they did an ok job but they never installed dampers and me being ignorant to this part I just chalked it up to not having the correct system? Talking to my neighbor we asked me if I had a damper system? No but I am thinking of putting in an automated one so I could adjust the rooms in the winter and summer to the families liking. He suggested just putting manual dampers in and the air balancing the house... I looked into it and before spending a fortune on the automatic system I thought I would give the manual units a try first. I bought many 4", 6", and a few 8" manual dampers and installed them in my flexible duct system with lots of tape and zip ties to seal for leaks, bought a BTMETER BT-100 from amazon and I can happily say I have a much more balanced house and I actually keep the temperature lower in the winter because the house is a more evenly balanced temperature. It was not a cheap experiment but I wish I had done this a long time ago and it was worth the expense.
Rick
2025-04-29 18:51:48
well made and it looks good
Eric Laflamme
2025-02-25 12:07:50
Works very well.. High quality in my opinion
Prunes
2025-02-17 10:50:08
The product looks great, but I think it is pricey for a manual damper.
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