Spiral Vs Longitudinal-Seam Round
Ordering/cutting the wrong type; snaplock popping open
Green / Field Check1stBatch 5
What This Helps With
Ordering/cutting the wrong type; snaplock popping open
Apprentice words: spiral pipe
Trade terms: spiral duct, longitudinal seam, snaplock pipe
Check First
Seam type and whether it's spiral or snaplock
What Not To Do
Cut spiral where a fitting was needed
What can go wrong: Treating snaplock like it's as rigid as spiral
Better Foreman Question
Is this run spiral or snaplock, and what gauge?
Verify With
Reference type: SMACNA
Source to verify: SMACNA round duct; supplier data
Safe wording: ID only; gauge/class per spec.