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Technically, this might not answer your inquiries directly but surely would help. Hope you don't have this yet at your desk. Try: Process Piping, The Complete Guide to ASME B31.3 by Dr. Charles Becht (2002). Eduard47

All, I accidentally posted this problem while inside "ANSI B31.3 Rule of Thumb" thread. I apologize for this. So this is the proper place - and to start again: I have run a model 150 psig/370 deg F Steam @ 8" nom. diam. which ties-in axially to a 12" existing steam header...

I have run a model 150 psig/370 deg F Steam @ 8" nom. diam. which ties-in axially to a 12" existing steam header. The existing steam header with multiple branch connections is hanged with plain hangers and in fact all the connections going back to the boiler. No seismic restraints can...

I appreciate your response John and I am very much interested on this issue. It took me a while to formulate the question. And again here you are just right because there is no code stress checked for operating case and I don't understand actually why (when temperature is a factor in stress...

Thanks for the support Oswandi. Let me clarify the question one more time for the rest cause I think I did not technically raise the question right: Is the code stress % be kept a distance far way below 100% of allowable stress? Thanks again. Eduard

Sometimes back I encountered a pipe stress model that generated one of the highest at 95% of the allowable on operating load case. I was then a bit worry of the closeness to the maximum allowable limit untill somebody told me that it is okey. Technically it is stil within the allowable and is...

Thanks Abeltio, this really helps to keep me starting. With efficiency higher than shell and tube I'm wondering why else should somebody choose a shell and tube if cost really does not matter in the highend (economic calculation?-still don't have the feasibility study). Upgradability and high...

I don't have much experience on plate type heat exhanger. Other than it could be upgraded easily by adding plates, could anybody around have any working knowledge on its "main advantage" compared to the shell and tube heat exchanger? Maybe worth mentioning are cooling and heating...

Thanks Stanier for your tips. After going into AFT site, it seems like Chempak is the most applicable software for our needs. We do appreciate much your very helpful tip. God Bless you. Eduard

Thanks for the resources Morten. I do appreciate your help on the subject. Eduard

Thanks again John. This forum has started being a part of my day in the office and it's just so great having people as kind as you are. Your advice will be forwarded to my superior. Eduard

I am requested to research from anybody around who knows any gas flow software - a program that could calculate masss flowrate, pressure drops, etc. It hs been emphasized that the gas flow application would be on scrubb exhaust gas for microelectronics application. This is acidic in nature and...

Got you too Pete and have hard copies of these messages and B31.3 on my desk. More power to you. Eduard47

This is just a tremendous knowledge to learn and encouragement for me to read on responses from Johnp (mechanical). I apologize John for not having really clarify earlier that the tank here as somebody has described to me as a reactor is definitely not on petrochem application but on...

Thanks for a nice reply Ed. Actually I was doing this job for the last 2 years (say 80-90% of my time). The allowable load transferred to the equipment has been an uncomfortable scenario to me simply because I have no criteria on hand. I have no Caesar seminar and even with it, I am not sure if...

Thanks a lot for a quick resonse Pete and I will follow your advice to start with. I maybe able to know all the details of the layout today. Thank you so much. Eduard47

After reading all the issue regarding pipe stress analysis, I have this guts to ask help from those expert on the subject. I am going to perform a stress analysis on a 12" line, 400 psi/450 deg F with the layout not known to me yet other than it is a line interconnecting two skids, one with...

Hi to everyone, I'm a new member and this is my first attempt to ask help from anybody around familiar with the subject. May I ask anybody familiar with piping material specification for PVDF, PE,PP and PVC/CPVC pipe where to obtain their physical properties as allowable stress, modulus of...