Ferrule Selection Guide

Ferrule Selection Guide

Ferrules are available in a variety of different materials, shapes and sizes depending on their use, the instrument and the size of the capillary column being used. Probably the most important but difficult aspect of choosing a ferrule is the selection of the material type. The table below will help you choose the appropriate ferrule material for your application.

Name /Material Graphite Graphite-Vespel ClickTek SilTite Metal
 
Compability
GC
GC-MS
GC*
GC, GC-MS
Wrench needed for installation
Yes
Yes No Yes
Time required for replacement Long Long Short Long
Temperature limit
450 °C
325 °C 350 °C N/A
Removal of the ferrule from column possible Yes No No No
Oxygen permeability of material Yes No No No
Ferrule debris generation Often  No No No
Over-/undertightening possible Yes Yes No Yes
Re-tightening needed No Yes No No

*Only available for specific models

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