ISO tank IMO7 repair
ISO tank IMO7 repair
(OP)
I'm checking a 5000usg LN2 cryogenic tank. I found out that annular space(vacuum break) will blow out air when i were pressurize inner tank, but there is no leak or crack of inner vessel. Can anyone explain why would this happen?





RE: ISO tank IMO7 repair
RE: ISO tank IMO7 repair
We done by pressurize annular space with helium+N2. Then purge some N2 to inner vessel for bring out helium detect purpose. That is no signal show on leak detector machine.