Re: RE: [Piping Design] Hydrotest pressure

From: <Christopher>
Date: Tue Nov 01 2005 - 13:15:00 EST

On Nov 1, 2005, at 11:14 AM, RICK wrote:

> I would appreciate your advice on these matter.
I've given you the advice I have. Your hoop stress at test pressure will be just over 2/3 of yield, which shouldn't cause trouble. But it sure as hell will cause trouble if your pipe is damaged or flawed, as I've mentioned. Mother Nature really doesn't give a damn about your plant's down time requirements. If there's a crack or a weld flaw in the right place, and your pipe ruptures, you can be assured that it won't be anything personal--she just plays by the rules.

Christopher Wright P.E. |"They couldn't hit an elephant at <a href="/group/PipingDesign/post?postID=_Jct2_OoosfHb2OU9DrPLKaxSAFg6JQcWZ1M4rdinp1VWV6YiVROEVKh4ehpymQlXsO134VT60LG">chrisw@skypoint.com</a> | this distance" (last words of Gen.

.......................................| John Sedgwick, Spotsylvania

1864)
<a href="http://www.skypoint.com/~chrisw/">http://www.skypoint.com/~chrisw/</a> Received on Tue Nov 01 13:15:00 2005