Ferrule Selection Guide

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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
 
Graphite
Graphite-Vespel
ClickTek
SilTite
Campability 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 No
Re-tightening needed No Yes No No

 
*Only available for specific models

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