Double Wall Sheet Metal Duct

Double wall fittings can be fabricated to desired length and many different configurations.

Double wall sheet metal duct. Sheet metal connectors inc. Double wall pipe and fittings with e z flange and barrel clamp or standard slip connection sheet metal connectors inc. Double wall fittings are manufactured on our state of the art fabrication equipment. Fittings can be fabricated with standing seam elbow lock or welded seam construction.

Langdon fabricates double wall ductwork with an inner perforated metal liner and fittings with an inner solid metal liner. Doublewall spiral pipe catalog specs. Manufactures double wall fittings in most sizes and configurations. Also available is acrylic coated insulation that resists air erosion of fibers and the growth of fungus and bacteria.

Double wall round spiral duct and fittings are one part of our complete line of hvac products. Double wall duct is constructed with an insulation layer between a solid metal outer shell and either a perforated or solid metal inner shell. Our double wall duct and fittings are galvanized sheet metal with an inner fiberglass insulation. Doublewall spiral pipe and fittings for commercial and industrial hvac ductwork.

All double wall fittings are fabricated with stiffening beads on duct sizes 19 wide and larger which have more than 10 square feet of unbraced panel. All sizes shall be listed using inside dimensions.