TUBE-TO-TUBESHEET JOINTS: THE MANY CHOICES
2016-10-19u2002·u2002• Weld tube ends • Helium test welds; repair as needed • Hydrostatic test Preferred from Experience The preferred method of making the tube-to-tubesheet joint is first to expand and then seal weld. When this sequence is followed a higher quality expanded joint is possible and the risk of cracking the seal weld during the expansion step is ...
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