Cleanliness.
I was not taught how to extract or run a CLS, I had to read/learn first hand, by myself. My trade brings a few things to the table…
I was getting a mol sieve together tonight. Just came in, my first one. As I was assembling it, I wiped all surfaces down with ISO. I looked at the 3/8 NPT weld joint on the hemispherical cap. The back of the welded joint, on the ID of the tube, had a bunch of soot and crud in it. I don’t know if they backed that joint with something or just back purged the weld or what. But both caps had a bunch of contamination in them…as seen in the pics on the q tips
When adding anything to my system, I treat it like a steam plant system. If it’s going in, being opened etc it gets a 100%, spotless cleaning with ISO or acetone…then gets a once over with ISO immediately before install if it wasn’t capped for foreign material exclusion.
Just my thoughts…not so much a trick but what should be common sense?
