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Why does nobody talk about rolling tubes with a torque wrench instead of counting grunts
When I started out in 2009 at a shop outside Gary, Indiana, our old hand would roll tubes by feel and yell at us to just lean on the gun harder. We blew a 2 inch boiler tube sheet in 2014 because a roller got over torqued and cracked the seat, and that cost us two days of downtime. Now I set my tube roller to 80 ft lbs, mark each hole with a paint pen, and log the number on a clipboard so the inspector can see it. Takes maybe 15 extra minutes per pass but we haven't had a leak on startup since. Curious if anyone else keeps torque logs on tube rolling or if that's just how my crew does it now.
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kelly_west744d ago
Marking holes with a paint pen saved us from double rolling more than once.
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