Is cross-wise welding strictly prohibited?
Is cross-wise welding strictly prohibited?
(OP)
Is cross-wise welding strictly prohibited in pressure vessels? Thanks in advance.
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Is cross-wise welding strictly prohibited?
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Is cross-wise welding strictly prohibited?Is cross-wise welding strictly prohibited?(OP)
Is cross-wise welding strictly prohibited in pressure vessels? Thanks in advance.
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RE: Is cross-wise welding strictly prohibited?
RE: Is cross-wise welding strictly prohibited?
| | |
| | <-- | the longitudinal weld in the top shell
|----|--------| <--the circumferential weld between them
| | <-- | the longitudinal weld in the bottom shell
| | |
|----|--------|
the two longitudinal welds are on a line and form a "cross-wise weld" with the circumferential weld.
RE: Is cross-wise welding strictly prohibited?
RE: Is cross-wise welding strictly prohibited?
RE: Is cross-wise welding strictly prohibited?
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdo/
RE: Is cross-wise welding strictly prohibited?
Joe Tank
RE: Is cross-wise welding strictly prohibited?
RE: Is cross-wise welding strictly prohibited?
RE: Is cross-wise welding strictly prohibited?
Here is my "two cents worth".....
As stated above, these joints are permitted by ASME VIII (with additional radiography)......but many clients sure as hell do not like them. Old timers are suspicious of them and have seen leaks start at these locations.
They also know that they can be prevented with proper shell segment planning.
Clients seem to feel that they are symbolic of a poorly fabricated vessel and poor design work.
Many API-653 tank inspectors are instructed to look very carefully at these joints on flat-bottomed tanks.
-MJC