pressure vessel
pressure vessel
(OP)
in designing a vessel how do i know the corrosion allowance an going to use
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RE: pressure vessel
Cheers,
gr2vessels
RE: pressure vessel
If the expected life of the vessel isn't sufficient, you can increase the corrosion allowance. Going from 1/8" to 1/4" theoretically doubles the vessel life. Personally, if I think I need to use a 1/4" corrosion allowance, I'd be considering alloying up the vessel to a more corrosion resistant material or cladding/lining the vessel with a more corrosion resistance material. For example, for a project I'm working on, the tower in the top is being lined with Hastelloy. The bottom part is being lined with 317LL and the middle portion, where the client hasn't seen corrosion issues in the past, is just carbon steel.
RE: pressure vessel
RE: pressure vessel
For corrosion allowance of vessel, this is the responsibility of purchaser to specify with help of process design engineer or corrosion engineer.
For detail , kindly study
ASME section VIII division 1, UG-25, Corrosion
ASME section VIII division 1, UG-26, Linings
ASME section VIII division 1, Appendix E , suggested good practice regarding corrosion allowance.
RE: pressure vessel
RE: pressure vessel
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand