Max. allowable pressure
Max. allowable pressure
(OP)
(1) Which standard use to figure the data for Maximum allowable pressure and relevant temperature? Standard ANSI/ASME B31.3 or ANSI B16.5?
(2) I found different data of same piping material for Maximum allowable pressure and relevant temperature? Is that possible due to it refer to different version (year) of standard ANSI/ASME B31.3 or ANSI B16.5? Both plant were built in different year.
Thanks.
(2) I found different data of same piping material for Maximum allowable pressure and relevant temperature? Is that possible due to it refer to different version (year) of standard ANSI/ASME B31.3 or ANSI B16.5? Both plant were built in different year.
Thanks.





RE: Max. allowable pressure
The flange rating in ASME B16.5 does not tell us what the maximum allowable rating for the pipe that was used might be. While it is common practice to ensure that the pipe is at least as strong as the flanges, this is not universal. You would have to calculate the rating of the pipe using ASME B31.3. Again, this changes from time to time so the rating would be based on the edition in use at the time the plant was built.
B16.5 is used for flanges, B31.3 is used for the pipe.
RE: Max. allowable pressure
RE: Max. allowable pressure
RE: Max. allowable pressure