National Sanitation Foundation (NSF) Standard 61/372 certified

The STRESS SAVER® XP a blend of high performance fluoroelastomers, molded with the same rib configuration as the rest of the STRESS SAVER family of products. In addition, the STRESS SAVER XP is National Sanitation Foundation (NSF) Standard 61/372-certified for use in drinking water systems and carries the Lubrizol FBC™ System Compatible certification making it suitable for use in CORZAN (CPVC) Piping.




  • Raised, molded-in sealing rings seal with 75% less surface area for high performance in non-metallic flanges (Flat-face flanges strongly recommended)
  • Lower seating stress than expanded or specialty PTFE gaskets; ideal for nonmetallic flanges
  • High-performance fluoroelastomer resists a variety of chemicals
  • Outperforms PTFE envelope gaskets
  • Won't fail due to filler attack, unlike conventional PTFE envelope gaskets
  • Requires lower seating stress to seal in flat face flanges
  • Eliminates envelope fold-over during installation
  • Outperforms standard fluoroelastomer
  • More resistant to severe chemicals
  • Performs well in steam
  • Exhibits improved heat resistance


  • Min. Temperature:        -15°F   /      -26°C
  • Max. Temperature:        400°F  /      204°C
  • Max. Pressure:        250 PSI    /    17 bar
  • Maximum PxT ⅛:        50,000 (°F x PSIG) 1,717 °C x bar)


  • Water
  • Steam
  • Most hydrocarbons
  • Gases
  • Solvents
  • Acids
  • Gasohol


NSF 61/372 approved for use potable (drinking) water

FBC™ System Compatible indicates that this product has been tested, and is monitored on an ongoing basis, to assure its chemical compatibility with FlowGuard Gold®, BlazeMaster® and Corzan® piping systems and products made with TempRite® Technology. The FBC System Compatible Logo, FBC™, FlowGuard Gold®, BlazeMaster®, Corzan®, and TempRite® are trademarks of Lubrizol Advanced Materials, Inc. or its affiliates.

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