Transverse Duct Connector System. TDC.

TDC System Ducts. These are flanged ducts, since flange is part of the duct body, and it is not independent as in other systems. TDC System is subjected to Chapter VII of the SMACNA Functional Criteria, then, SMACNA support it. See Special Joint Profiles Fig 1-4 A SMACNA Edition 1995.

TDC ducts are supplied along with accessories for Flanges, corner pieces and clips, and if required, Butyl package is applied on its transversal joint, duct to duct.

In the same way, "Standards" required by construction specification are met, external reinforcement to Z-Bar type duct, Fig. 1-6 Fig. 1-9 Fig. 1-10 SMACNA, or internal Tie-Rod type reinforcement Fig 1-2 SMACNA.

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