TG4,
can you please explain. Allowable is calculated by yield/1.5 right? So 1.5 times the design pressure will take the allowable right back to the yield right?
Dear all,
Does the ASME section VIII Div 1, UG-99 (e) talk about the hydrotest for the external pressure also? Like testing the inner walls when pressurizing the jacket of a double pipe Heat exchanger?
Yes. I mean ASME Section VIII Div 1 UG-99
Let me tell what I understand from the code book.
Ultimately we are using the stress value at the test temperature to find the test pressure. Because the (b) has a correction factor to bring the stress value to the test temperature.
So if I multiply...
Hello,
I request some light on this topic that is widely discussed.
ASME code specifies the minimum test pressure as 1.3 times the MAWP at test temperature.
I have seen in general practice, engineers using 1.5 times the MAWP at the design temperature, claiming it will be satisfying the...
Dear All,
I would like to know is there a certification from ASME or other such authority for the Pressure vessel and heat exchanger design engineers.
can somebody answer me?
Dear All,
I am sorry about the insufficient information.
infact my situation is as follows,
I have a Flue gas expelling stack.
it contain co2, so2, h2o etc.
temperature of inlet gas is 400 degree celsius.
I know the flow rate aslo, 12000Nm3/hr
the cusotmer have given a height of stack as...
