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Over the half-century of my commentary for these SNIPS articles, I can state without reservation, absolutely nothing is the same since that September day in 1968 when I was hired by GRIPNAIL.
SMACNA steps in to clear up confusion over proprietary DCS addendums for Slide-On (Ductmate, etc.) and Rolled-On Connectors (TDC and TDF) during the ‘90s, writes SNIPS Contributor and Industry Icon David Daw.
Here's why the addition of rectangular duct construction tables in SMACNA’s 1995 DCS (Duct Construction Standards) as T-25a/b, known in the trade as TDC/TDF, was necessary.
Quick Connect is the new generation of refrigeration pipefitting designed for ductless mini-split and ducted unitary, single-family residential air conditioning systems.