RE: Preliminary Nozzle Loads

From: <Al>
Date: Fri Dec 02 2005 - 17:40:00 EST

HEI has a set of allowables but they cover only 4 of 6 Forces and Moments. it is very difficult to create a comprehensive dataset for such a diverse array
of possibilities (size, rating, design conditions, boundary conditions (ie the wall thickness
and rigidity of the attachment). the problem is the assumptions inherent in such cookie cutter
black box design need to be understood and they arent.

Many companies have such criteria, but predictably they are all over the map and this alone highlights the issues.
Such an approach is fine if the originator or creator understands the assumptions and limitations... this gets misused however.

-----Original Message-----
From: <a href="/group/PipingDesign/post?postID=lLiAIuVY-pz_zpZfQnjUzh17GeCNBg0QRFJ9DzJpSd2WHVNTHGzM-iIP11UViwaq-L9pfHKBFdfNB3chNDEe9vwSXQWn">PipingDesign@yahoogroups.com</a>
[mailto:PipingDesign@yahoogroups.com]On Behalf Of John Luf
Sent: Friday, December 02, 2005 1:48 PM
To: <a href="/group/PipingDesign/post?postID=lLiAIuVY-pz_zpZfQnjUzh17GeCNBg0QRFJ9DzJpSd2WHVNTHGzM-iIP11UViwaq-L9pfHKBFdfNB3chNDEe9vwSXQWn">PipingDesign@yahoogroups.com</a> Subject: Re: [PipingDesign] Preliminary Nozzle Loads

Hmmm....

   There were a set of proposed limits published circa 50's by Messrs' Markl and Rossheim.... if I can find them I'll post them.....

   John C. Luf
   Master of unimportant trivia, mercenary, have slide rule will travel, from somewhere in the U.S.A.

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