When Should You Use PTFE Encapsulated FKM And Silicone O-Rings? 

PTFE Encapsulated O-ring can resist high temperature and chemical liquid.The FEP/PFA layer can withstand high temperature and corrosion, and the internal O-ring acts as an elastomer to ensure sealing performance.

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Jacket Type and O-Ring Material


  • FEP jacket encapsulating an o-ring core of FKM
  • FEP jacket encapsulating an o-ring core of Silicone
  • PFA jacket encapsulating FKM
  • PFA jacket encapsulating Silicone

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