Re: [PipingDesign] Nozzle load calculation

I saw already these values.These B values depend of the rating and the type of the equipment. It is a in house rule.It is not stated in any code. So what happens is that the piping stress issue these values to the mechanical department in order to ensure that the vendor can design their equipments to comply with these allowables in the nozzles.

Otherwise pipe stress does not have any reference in order to control their calculation.What happens is that these values are conservative and many times the equipment design get overdesign.
I do not have good knowledge about nozzle loads but these B values work like this.I hope i could give some help.Anyway the client should agree with this and also both mechanical and piping department.  
Cheers
 
--- On Mon, 4/27/09, Christopher Wright <chrisw@skypoint.com> wrote:

From: Christopher Wright <chrisw@skypoint.com> Subject: Re: [PipingDesign] Nozzle load calculation To: PipingDesign@yahoogroups.com
Date: Monday, April 27, 2009, 4:50 PM

On Apr 27, 2009, at 1:53 AM, remo raj wrote:

> B value given as per rating only.but that value i am not able find
> from ASME Sec.VIII
> One project specifiaction document they mention B value.How they
> mention where they get i dont know.

For God's sake contact your client and ask them what they want and get them to supply a reference. You're making it seem like you're trying to get work you don't know how to do. You're also wasting a helluva lot of time asking questions that the list can't or won't answer. I've been in the biz for about 40 years and I've never seen nozzle loads discussed in those terms. That might mean that your client is referring to an in-house non-Code issue addressed in some technical report or they might be referring to a national Code that I've never used. Have you done any research at all on your own?

Christopher Wright P.E. |"They couldn't hit an elephant at chrisw@skypoint. com | this distance" (last words of Gen. ............ ......... ......... ......... | John Sedgwick, Spotsylvania 1864)
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[Non-text portions of this message have been removed] Received on Mon Apr 27 18:01:00 2009