Description
Metal duct expansion joints with angle iron flanges are made with single-ply and multi-ply metal bellows and
with carbon steel or stainless steel angle flanges. Industry standard bolt patterns, as well as custom
drillings, are available. Metal bellows duct expansion joints can be designed for large amounts of thermal
expansion in the ducting system. The engineers at triad bellows will design the metal bellows according to the
strength of your duct.
