TinnerFlow™4th YearFabrication
High-pressure duct systems (above 2" WG) require reinforced construction, heavier gauge, and tighter seam standards. Verify the pressure class before fabr…
High-pressure duct systems (above 2" WG) require reinforced construction, heavier gauge, and tighter seam standards. Verify the pressure class before fabricating any fitting and build to the applicable SMACNA table.
Do not hide, force, cover, or “make it work” if this affects safety, access, airflow, rated assemblies, supports, equipment, or inspection. Stop and verify the approved correction.