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Tubesheet Tube Hole Grooving Depth

Tubesheet Tube Hole Grooving Depth

Tubesheet Tube Hole Grooving Depth


For double grooved and roller expanded tube to tubesheet joints on a shell and tube heat exchanger, what tube hole groove DEPTH are you using?


RE: Tubesheet Tube Hole Grooving Depth

TEMA RB-7.24/C-7.24 specifies a groove depth of 1/64".


RE: Tubesheet Tube Hole Grooving Depth

When you are working with soft tube alloys and stronger tubesheet alloys then a couple of larger grooves help.
When the strength of the two are very similar, or the tubes are stronger than the tubsheet then a series of very small and shallow grooves works much better.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy

RE: Tubesheet Tube Hole Grooving Depth

Somewhat related topic, as a standard our company utilizes a 1/16" x 45 deg chamfer on the shell side of every tubesheet tube hole. No chamfer on the tube side hole. Is a shell side chamfer common industry practice?

Thanks again!

RE: Tubesheet Tube Hole Grooving Depth

A seminar presented by a mechanical specialist which I attended in 1984 indicated that groove width be 1/8 inch, depth be 1/32 inch and their spacing between center lines 1/2 inch. Note there are other restrictions based on tube sheet thickness and expanding tube ends. Babcock and Wilcox has done extensive research work on the subject so dig some more on the subject as I am only answering your OP.

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