Installing GC Columns 2
To Prepare the Column Ends for a CFT Fitting
Operation Manual 41
6 Check the end of the tube with a magnifier. The end of the
tube need not be perfectly square, but should not have cracks
which extend under the ferrule. Figure 8 shows a completed
tube end.
7 Connect column to the Quick Swap or PUU with internal
nuts and preswaged SilTite ferrules (Figure 9).
Finger-tighten the nuts. Further tighten with a wrench only
15 to 20 degrees.
Figure 8 Tube end with internal nut and swaged SilTite ferrule
Figure 9 Completed Ultimate union with columns