Can SilTite ferrules be used with the normal nuts that I use with my graphite Vespel ferrules?
No. SilTite ferrules can only be used with specific SilTite nuts which are characterised by two notches on the outside of the nut. The reason for this is that the angle in the tapered end of the nut is specifically designed to cause the tapered end of the ferrule to seal on the capillary column as the nut is tightened the required 60°. Swagelock type nuts don’t have the correct angle on the taper to seal the ferrule on to the capillary column.
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- Can SilTite ferrules be used with the normal nuts that I use with my graphite Vespel ferrules?