A 100% expanded PTFE gasket with a fully encapsulated corrugated stainless steel insert

Patented construction transforms conventional ePTFE into a "spring-energized" PTFE gasket that maintains high tightness through thermal cycling in all chemical services. Available in a variety of ASME/ANSI class 150-300 sizes with non-standard sizes available upon request.


  • Spring inserted, high recovery ideal for thermal cycling
  • Low emissions
  • Low stress to seal
  • High operating tightness

Target Applications / Industries

  • Toxic, corrosive, PIH
  • Food pharma
  • PTFE plastic lined flanges