MJCronin. The first question I can not answer and will keep it anonymous. The second question: I do not know whether they were field refit or rolled in a vendor's shop. I a new engineer and trying to learn as much as I could.
Thank You EdStainless and kingfaruk for the information both of you...
I will contact Conco as well as other vendors such as EST Group.
Why are you having to plug tubes?
This condenser has a square groove design in the tube sheet, when the thin wall titanium tubes were hydraulically expanded, some of the tubes were cracked at the groove(s).
I have thin wall titanium tubes 5/8" OD and 0.028" wall thickness. I am trying to find out what the industry practice plugging thin wall titanium tubes. Has anyone use pop-a-plug with the thin wall titanium tubing yet?