Static field route #111

What do I do when not recognizing when pressure class changes connector requirements?

Rectangular Duct Assembly: TDC / Ductmate / FlangesPolished core starter — connector/detail check

Treat the flanged joint as a manufacturer/spec-controlled connection: not recognizing when pressure class changes connector requirements.

Open in Field Rescue Open category

Field checklist

Check pressure class
Verify reinforcement/tie rod detail
Confirm connector requirement before install

Ask foreman

In Rectangular Duct Assembly: TDC / Ductmate / Flanges, I’m looking at: What do I do when not recognizing when pressure class changes connector requirements? What should I verify before I cut, drill, seal, cover, move, or install?

Do not

Do not assume the same flange setup works after duct size or pressure class changes.

Why it matters

Project specs/submittals, manufacturer connector instructions, shop standard, foreman direction, and approved flange detail.

Search words: tdc ductmate flange pressure class