RE: Hi-Lo Piping FitUp

right. we did perform the risk assessment and have consider also the "business" side. Like id said before i went over the xray film, check fitup and workmaship, the service, operating temp and pressure and went over case histories (failure). The math is simple, id just consider the loading as cantilever (overhung , concentrated load due to the weight of the flange and valve). Its not subjected to cyclic load, service is water and failure mode is leak before break - something that we can handle in case it happen. part of the insurance is the sleeve to reinforce the weld joint and regualr monitoring plus the tel-tale hole. Decision was left eniterly to the senior management with me providing the technical input. One thing i didn't do is plead the case to accept the bad weld. . What's really in my mind at that time is the probability that usch break will happen and the cosneqeunce of such an event. This is where the FMEA tools comes in handy. Worst thing that can happen is a break in a joint - consequence is a plant shutdown (no injury and no property loss due to its remoteness).and lose 2 days. But if it carries us over the next shutdown then we gain the 2 days

> ----------
> From: Christopher Wright[SMTP:chrisw@skypoint.com]
>
>
> If I were gonna do something like this
> I'd sure do my homework first.
>
> Christopher Wright P.E. |"They couldn't hit an elephant from
> chrisw@skypoint.com | this distance" (last words of Gen.
> ___________________________| John Sedgwick, Spotsylvania 1864)
> <a href="http://www.skypoint.com/~chrisw">http://www.skypoint.com/~chrisw</a>
>
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Received on Sun Oct 21 00:32:00 2001