Quantity Damper Case in point In the example above the quantity damper controls the amount of air that air distribution diffuser CD-6 gets, In cases like this it implies five hundred CFM (cubic feet per moment) Often the beginning collar should have a quantity damper provided. Retaining the volume damper https://oval-conduit01123.59bloggers.com/37171975/the-2-minute-rule-for-round-conduit