Polyetheretherketone (PEEK) Back-up Rings

Back-up rings are also known as anti-extrusion rings since their main function is to prevent o-rings from entering the clearance gaps due to internal pressure. They avoid the seal from experiencing premature failure. Backup rings are not seals themselves, but are used in conjunction with O-rings or... [See More]

• Sealing Element or Lip Material (ASTM Abbreviation): Polyetheretherketon (PEEK) Polytetrafluoroethylene (PTFE)