[labnetwork] Liquid Nitrogen Vacuum Jacketed Line Maintenance Question

[Harlan, Richard D]

Greetings All,
Our facility is now 15 years old and starting to require more preventative maintenance. The vacuum jacketed liquid nitrogen line was showing an increased leak rate for a short period of time. It has since stabilized, but has raised questions about potential leaks in the system.
Have any of your facilities experienced this type of problem and what PM's have you put in place to address the LN2 and vacuum jacketed line integrity?
Thank you in advance for the feedback.

Thanks,
Rich Harlan
Research Engineering
Birck Nanotechnology Center | Room 2287C
Office: 765.494.6697 | Email: rharlan at purdue.edu<mailto:rharlan at purdue.edu>
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