Material Is (A53 Gr B) at -20¦F good for -29¦F @ 150 psig.
Material Is (A53 Gr B) at -20¦F good for -29¦F @ 150 psig.
(OP)
Team Members
Ethylene compressor RV discharge that goes into a flare header in the Alcohol plant. Based on the findings from the study, the line in question could reach -29°F @ 150 psig. Our piping specifications(and B31.3), list the temperature limitations for the material (A53 Gr B) at -20°F. I know there are exemptions in B31.3 (see email below), but not sure of exactly how to apply / calculate the stress ratio, and don't really know if they apply in this situation. In addition, I know there are other exemption / exclusions, but not exactly sure how to apply them either.
Referencce to ASME B31.3 INTERPERATIOS 20-15?
Ethylene compressor RV discharge that goes into a flare header in the Alcohol plant. Based on the findings from the study, the line in question could reach -29°F @ 150 psig. Our piping specifications(and B31.3), list the temperature limitations for the material (A53 Gr B) at -20°F. I know there are exemptions in B31.3 (see email below), but not sure of exactly how to apply / calculate the stress ratio, and don't really know if they apply in this situation. In addition, I know there are other exemption / exclusions, but not exactly sure how to apply them either.
Referencce to ASME B31.3 INTERPERATIOS 20-15?
L S THILL





RE: Material Is (A53 Gr B) at -20¦F good for -29¦F @ 150 psig.
EJL