Static field route #89

What do I do when the duct weight is pulling the S-and-drive joint open?

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

Add or adjust support before relying on the connector. The S-and-drive joint should connect duct sections; it should not carry a sagging run by itself.

Open in Field Rescue Open category

Field checklist

Support both sides
Check hanger elevation
Make sure the joint stays tight after support is added

Ask foreman

In Rectangular Duct Assembly: S-and-Drive, I’m looking at: What do I do when the duct weight is pulling the S-and-drive joint open? What should I verify before I cut, drill, seal, cover, move, or install?

Do not

Do not let duct weight hang from an S-and-drive joint.

Why it matters

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

Search words: support, hanger, sagging joint, duct weight