Reports until 14:28, Friday 14 February 2025
LHO VE (VE)
gerardo.moreno@LIGO.ORG - posted 14:28, Friday 14 February 2025 (82811)
Purge Valve Replaced on Pneumatech Left Drying Tower.

Late entry.

Thursday of last week I replaced the leaky valve reported on aLOG 75980 with FRS ticket 30556, I then allowed for the parts/joints to dry and settle over the weekend.  Then on Tuesday, 2/11/25, the purge air system was turned on to pressurize and leak test the system.  No leaks were found.  The purge air system ran for about 3 hours, the system checked out good and now we are closing the above mentioned FRS ticket.

BTW, I took a dew point measurement at the input mode cleaner purge port area, reading was -40.5 oC.

Images attached to this report