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Had a flange weld crack on a 500 psi boiler in Toledo last winter

I was doing a final pressure test on a new install when I heard a sharp hiss and saw steam coming from the main steam outlet. We had to shut down, drain the whole system, and re-weld the joint in freezing temps. What's your go-to method for checking for hidden cracks before a pressure test?
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2 Comments
wyatt_fisher41
Man, that sounds brutal, especially in a Toledo winter. Been there with a leak on a cold day and it's the worst. Do you guys do a dye penetrant check on those flange welds before you button it all up? I've found that catches a lot the eye misses, especially in tricky spots.
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webb.linda
You actually do dye penetrant checks on every single weld?
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