Graphite/Tl-Polyimide Ferrules For 1/16" Fittings
We now have the direct molded-to-size ferrules made with graphite/TL-Polyimide. These ferrules are superior to graphite-Vespel™ ferrules. They have superior thermal properties, seal easier (they are a little softer with a Rockwell hardness of approx. 75 -vs- 95 to 102 for Vespel™), don't off gas, and have a much lower coefficient of thermal expansion.
Quadrex offers a complete range of graphite and graphite/TL-Polyimide™ ferrules for capillary column installation which offer a reliable gas tight seal and are specifically designed for use in your GC. When choosing the ferrules you need, remember that there really isn't a "standard" ferrule or GC fitting. Most instrument manufacturers and ferrule suppliers have their own particular designs and dimensions for these components, so be sure you're selecting the ferrules which were designed for your particular GC. This will insure that your column installation will be leak-free.
Hard yet pliable, graphite-vespel ferrules can be re-used up to 6 or more times before requiring replacement.Over tightening any ferrule would cause deformity and shorten the ferrule lifetime.
|Column I.D. (mm)
|Column O.D. (MM)
|1/16” x 0.4mm ID