Static field route #92

What do I do when one duct section is S-and-drive and the next is TDC/Ductmate/flanged?

Rectangular Duct Assembly: S-and-DrivePolished core starter — shop/detail check

Stop and ask for the approved adapter or correct fitting. Do not casually mix connector systems or field-cut one system into another.

Open in Field Rescue Open category

Field checklist

Check the piece mark
Check the approved connection detail
Verify both duct ends are meant to connect

Ask foreman

In Rectangular Duct Assembly: S-and-Drive, I’m looking at: What do I do when one duct section is S-and-drive and the next is TDC/Ductmate/flanged? What should I verify before I cut, drill, seal, cover, move, or install?

Do not

Do not mix connector systems in the field without approval.

Why it matters

Shop standard, project drawings/specs, duct pressure class, foreman direction, and approved connection detail.

Search words: mixed connection, TDC, Ductmate, flange, S-and-Drive