A factory spiral seam whistles during pressure test

Do not hammer the spiral seam flat. Clean, seal, and wrap/repair it with the approved pressure-class method or replace defective pipe.

Sealing, Leakage, Mastic & Pressure Testing 2nd Year YELLOW

Watch out

Do not smash a spiral seam with a hammer to “tighten” it.

Check

Locate the exact whistling section during test.
Check for visible seam gap, denting, oil, or damage.
Clean before applying sealant.
Use approved high-pressure seal/wrap method.
Retest the repaired section.

Steps

Locate the exact whistling section during test.
Check for visible seam gap, denting, oil, or damage.
Clean before applying sealant.
Use approved high-pressure seal/wrap method.
Retest the repaired section.

Say this to your foreman

The spiral lockseam at [location] is whistling during pressure test. I located the seam leak and checked for damage. Do you want approved seam sealing or replacement of the section?

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