We have a heat exchanger from 1980's.
On the spec sheet, the design pressure of the shell size is 5 bara, tube side is 0bara.
Test pressure shell side 7,9 barg, tube side is 3 barg.
Design pressure of tube side is very strange.
Since the shell size pressure is 5 barg, can we also say the tubes can handle 5 barg?
Test pressure, when the equipment is being tested, only the shell is tested or with the bundle in?
Thanks.