Back-up Ring Kits

Backup Rings are primilarly used as anti extrusion devices in O-ring applications.  RT/Dygert is proud to offer our back-up kits in either PTFE, or 90 durometer nitrile contoured back-ups.
Contoured Back-up Ring Kit
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Contoured back-up rings are recommended for use in applications where the systemic pressure exceeds 1500 psi.
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Split PTFE Back-up Ring Kit
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The use of single turn PTFE back up rings will help control O-Ring extrusion caused in high pressure applications.
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