Re: about mil tolerance

I guess my comment would be that someone should know not to re-use piping components in a system where mixing and matching can cause problems and where traceability is important. I mean, we all know that screw ups happen, so why set up a situation where it could occur? As the great philosopher Murphy noted, "if it can, it will". Do we need a database to remember that someone installed a salvaged 304 coupling in a 316L header? ....maybe this is too simple minded....sorry....

Jack

>Really great. So how do you find where someone has substituted a
>salvaged 304 coupling in a 316L header? ;-> I've worked in a lot of
>systems and it seems like everything's great until it comes time to
>track down something squirrelly. Nuclear systems are the fanciest, with
>battalions of auditors and procedures for figuring out which end of the
>weld is the start, but still the stuff creeps in.
>Christopher Wright P.E. |"They couldn't hit an elephant at
>chrisw@skypoint.com | this distance" (last words of Gen.
>.......................................| John Sedgwick, Spotsylvania
>1864)
><http://www.skypoint.com/~chrisw/><a href="http://www.skypoint.com/~chrisw/">http://www.skypoint.com/~chrisw/</a>
>
>
>
>----------

:-)
Jack Osborn, PE
Mechanical Engineer
MWH Global
925 274 2277

[Non-text portions of this message have been removed] Received on Tue Sep 06 11:17:00 2005