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Thanks for the answers. I have been reading the EN 1591 and as I reasoned, it takes into account if the external axial force is of compression or tension. I still can't figure out why autopipe only takes a value for tension. I will have to do some research on the bentley forums. On my design...

Hi community, I've been reading about flange load calculations all over the site (ex: http://www.eng-tips.com/viewthread.cfm?qid=191806), but I have a doubt about the equivalent pressure method used in Autopipe and stated on the Kellogg "Design of piping systems". The Autopipe software...

@unclesyd: I have consider cold spring, but the forces that are over the limits are the ones perpendicular to the flange and not in axial direction. In Vino Veritas

@Kentech394: If you know any company that manufactures expansion joints for that operating point please let me know, I couldn't find any. In Vino Veritas

MJCronin, as you well say i'm a novice learning with this pipe :S I have selected a Sch. 120 and the many (more than 1000) runs with autopipe confirm that the pipe complies with B31.1, if the supports are well fabricated. The only messy point is that the stresses on the turbine nozzle are over...

BigInch, i don't really get your reply. BTW there must be, perhaps a couple of engineers that have worked with this steam conditions in Uruguay and for sure they never used FEA to work them out. And they aren't the ones around me. In Vino Veritas

There is a link. The working pressure also varies with material and temperature of the fluid that will run thru. You should check the ASME's StevenHPerry pointed out. If you would like a guide for some materials follow the link. http://www.comeval.es/pdf/tablas/ansi.pdf

Hi everybody, I've asked some questions regarding steam turbine nozzle strengths and your replies were very useful. I now have to design a line stop for a SA335-P22 8" NPS that runs 65 barg steam at 530ºC. Some engineers around say that a we can't use a guide (IPN type welded to the pipe) due...

Thanks for the answer. Colonel I have an older version of the code. We have already returned the flange.

Colonel, I attach an extract from the code tables. They seem the same to me. Thanks.http://files.engineering.com/getfile.aspx?folder=176b8057-21c8-404d-8a7a-d8834dd2c25e&file=Flanges.jpg

Hi, everyone. I have an issue with two different flanges, both are for NPS 1". The thing is, that for 300# and 600# in the code both have the same dimensions. The 300# flange have the material and rating stamped on it but the other one doesn't. Is there anyway of knowing for sure if I have a...

Hi everyone. I'm having some discussions with some colleagues about forces transmitted to static structures linked to pipe supports. We have a horizontal run of a 30" pipe, with a saddle support welded to it. The base plate of the saddle will be the one in contact with the static structure...

Dear DSB123, i totally agree in what you say. I'm telling this to my employer but he thinks this is an easy task. I'm totally in-experienced in this subject but i teach strenght of materialsat the state university, so i think that with some good reading i will be getting the basics pretty soon...

Hi, everyone. I have graduated of mechanical engineering last december. I now work on a company that designs and builds power plants burning biomass. I'm having some trouble designing the steam pipe from the boiler to the turbine, on my college the subject about stress analysis of piping...