Features & details
Dimensional Information - The diameter is 248.9mm/9.8'',the height is 128mm/5.04'',and the thickness is 0.5mm/0.02''.
High Quality Material - The backdraft damper and the flap leaf are made of a galvanized steel,the shaft is made of aluminum alloy,while the spring is made of carbon steel.Backdraft damper are very solid and well made,high tension on the spring.At the same time,the inside is also equipped with eva soft rubber ring stopper.
Effect - The flap leaf open under the pressure created by the airflow;when the air flows in the opposite direction,it is automatically closed under the action of the spring,so as to cut off the flow.
Easy to Use - The 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.
Wide Applications - The backdraft damper can be inserted into flexible or non-flexible ventilation ducts.Designed for residential and industrial applications such as exhaust fan ducts,dryer ducts,range hoods,heating ducts,bathroom fans,kitchens and other household HVAC applications.
Description
Features:
- High Quality
The backdraft damper and the flap leaf are made from galvanized steel that offers durability to withstand different conditions,ensuring longevity.Additionally,the shaft is manufactured with aluminium alloy,and the spring is made of carbon steel,ensuring impeccable performance and consistency.The ring stopper is made of eva.
- Wide Applications
A backdraft damper designed for use with range hoods,bathroom fans and other home HVAC applications.
- Effect
Backdraft dampers with spring prevent the reverse airflow movement through the ventilation duct when the ventilation system is turned off.
Specification:
Material:Galvanized Steel
Color:Black
Size:Diameter:248.9mm/9.8'',Total Height:128mm/5.04'',Thickness:0.5mm/0.02''.
Package:
1 x backdraft damper