API12B Allowable Overpressure?
API12B Allowable Overpressure?
(OP)
Morning guys. Have any of you ever seen an allowable overpressure value (i.e. % pressure rise in excess of the tank MAWP) during tank venting for an API 12B tank? I have reviewed both 12B and API2000 and I don't find anything. Working on venting calcs and wondering about 10% overpressure. Thanks in advance!





RE: API12B Allowable Overpressure?
RE: API12B Allowable Overpressure?
"Why you would consider it"- because the standards are rather arbitrary as to the definitions of the various design pressures, and whether they are increased for venting overpressure or whether the overpressure is included in the design pressure; ditto for emergency venting conditions.
RE: API12B Allowable Overpressure?
Dejan IVANOVIC
Process Engineer, MSChE
RE: API12B Allowable Overpressure?
RE: API12B Allowable Overpressure?
RE: API12B Allowable Overpressure?
My opinions only, and I tend to be conservative...not always the best approach...