DVAC uses the DEVO Accessories to be fixed on the fabrication of Ducts.
DEVO FLANGES
Rectangular Ducts are fitted with Flange Frames 20 / 30 / 40
made of GI sheet. It is a method of connecting Air Ducts.
Flanges are usually welded / clinched or fixed by screws / rivets.
Flanged joints are made by bolting two flanges to each other
with a gasket in between, when a rigid connection is required.