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U or UM stamp

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codewelding

Mechanical
Jan 11, 2013
1
At what point is a unfired pressure vessel considered a miniature and fall under UM code requirements
 
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See paragraph U-1(j)

Depends on design pressure and internal volume. Note that a UM stamp is an option (subject to customer / local jurisdiction approval; you can always stamp U.

-TJ Orlowski
 
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