Temperatures over 250F for API 620 tanks
Temperatures over 250F for API 620 tanks
(OP)
I know API 650 addresses elevated temperatures over 200F in Annex M. Does API 620 have a similar allowance for temperatures over 250F. In other words, can I justify by code(or some standard) running a 620 tank that is already in service over 250F?





RE: Temperatures over 250F for API 620 tanks
Cheers,
John
RE: Temperatures over 250F for API 620 tanks
First off, that is a "change of service", so is evaluated that way.
As noted, that is outside the scope of API-620. You could reasonably apply the requirements of API-650 Appendix M, but you won't be meeting either code in doing so. Note that this would involve de-rating the tank for pressure.