Static field route #19357

What do I do when companion ring bolt holes stretch and the gasket tears?

Sealing, Leakage, Mastic & Pressure Testing✅ STANDARD CORRECTIONField answer expansion

📖 Verified core answer

Yes. Over-torque can warp the ring and damage the gasket. Reset the joint with a fresh gasket and even tightening by manufacturer direction.

Open in Field Rescue Open category

Field verification checklist

Look for stretched holes, bowed rings, torn gasket, or uneven compression.
Do not reuse damaged gasket tape/sheet.
Check ring faces for flatness before reassembly.
Tighten evenly, not one side all at once.
Leak-check after startup or pressure test.

Ask foreman

The companion ring at [location] has stretched bolt holes and a torn gasket from over-tightening. I pulled the joint back. Do you want fresh gasket and even torque per manufacturer direction?

Text to foreman

Route options

ACorrect it only if the fix is within your assignment and approved method.

BHold and document if it affects pressure class, listed assembly, material spec, support load path, fire barrier, equipment, TAB, or another trade.

CBring the foreman/detailer the location, what you checked, and what decision you need before sealing, testing, cover, or startup.

Do not do this

Do not keep tightening a warped companion ring until the gasket is destroyed.

Why this matters

Uneven flange compression creates leaks, ring damage, and repeated failed tests.

Final verification

Use this as field training guidance. Final direction still comes from the foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, pressure/material schedule, and AHJ/code requirements.

Search helpers: round companion ring over torque gasket tear bolt hole stretch star pattern flange leak