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Hi all, Would someone explain me about Injection Point Piping Circuit based on API 570? I still don't understand how to set the point for injection circuit. How to apply the 12" or 3D limit (wichever is greater) as in API 570 Thanks aadpilma

Yes I agree with others. Visual after HDG and do required NDE before HDG. Regards aadpilma

Yes, I got your point StevenHPerry in this case. What if I need the calculation to the old pipe (not for replacement purpose) for defining It's long term corrosion rate? I am working on an RBI project right now, the diffrent thickness between 15000 psi amd 20000 psi really affecting probability...

Oh, ok i get it. Thanks frank. Really appreciate it. If someday you might recall where you read about uding the old codes for the old facilities, really appreciate if you send message or reply again to this thread frank. Meanwhile, I'll try to find it on my own. Thanks again

Hi frank, Thanks for the asnwer. Ok, since you told me that ASME B31.3 could not be used in existing facilities, how do I determine pipe required/design thickness? Which could be the right codes and standards? I have read API 571 but I still could not find the way to calculate pipe design...

Good Day, Hi all, I'm new in this forum. I calculated pipework thickness (A-106 gr B) with MAWS = 20000 psi (100-500 F) based on B31.3 2004 edition. But our client raised question about MAWS number that we used, since they claimed material that they used was commisioned in 1988 so they used...