Hydro Test on Cryo Piping
Hydro Test on Cryo Piping
(OP)
All,
In place of a pneumatic pressure test, my project is opting for a Hydro test be done no cryogenic piping. Can this be done? Are there reasons to stay away from the hydro test?
Thank you.
In place of a pneumatic pressure test, my project is opting for a Hydro test be done no cryogenic piping. Can this be done? Are there reasons to stay away from the hydro test?
Thank you.





RE: Hydro Test on Cryo Piping
If a hydro test is required, the piping must be capable of being cleaned out after the test.
RE: Hydro Test on Cryo Piping
What do you think?
Thank you again.
RE: Hydro Test on Cryo Piping
Can you pull a vacuum? That essentially boils off the water. The lower the vacuum the better. Note that this tends to reduce the temperature of the water locally, so external heating of the pipe will help.
You might also consider running hot nitrogen through the pipe to help remove water. Or just heat it externally. Can you get the temperature of the line above the boiling point?
Performing a combination of heat and vacuum would work best.
RE: Hydro Test on Cryo Piping
Thank you.
RE: Hydro Test on Cryo Piping
I have seen small lines flushed with alcohol after hydro, not something to do on a large system.
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Plymouth Tube
RE: Hydro Test on Cryo Piping