Position of Pipe Longitudinal Seam Weld
Position of Pipe Longitudinal Seam Weld
(OP)
Hi,
May I know where can I find in ASME B31.3 the minimum longitudinal weld seam distance for piping and what should be their locations?
Thanks
May I know where can I find in ASME B31.3 the minimum longitudinal weld seam distance for piping and what should be their locations?
Thanks





RE: Position of Pipe Longitudinal Seam Weld
Seriously, I don't think you'll find these questions answered in B31.3.
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RE: Position of Pipe Longitudinal Seam Weld
RE: Position of Pipe Longitudinal Seam Weld
RE: Position of Pipe Longitudinal Seam Weld
I have heard of this bizarre "placement requirement" for weld seamed pipe only once before.
The only application that this makes sense (to me)is in sulfuric acid service, where there is an erosive/corrosive attack within the pipe at the 12 o'clock position. (This is also called hydrogen grooving)
Unfortunately, this kind of knowledge spreads quickly amongst "pipers" and pretty soon all piping is configured this way.
I agree that B31.3 makes no mention of this.
Anybody else have any experience with this ?
-MJC
RE: Position of Pipe Longitudinal Seam Weld
A quick search turned up this article:
ht
Neat stuff.
RE: Position of Pipe Longitudinal Seam Weld