Encapsulated O-Rings

An FKM or silicone elastomer core completely covered with a seamless FEP or PFA fluoropolymer sheath — superior chemical resistance with the elasticity of a rubber core.

An encapsulated O-ring puts a seamless FEP or PFA fluoropolymer jacket over an elastomer core. The jacket takes the chemical attack; the core provides the elastic recovery the jacket cannot. The result is near-PTFE chemical resistance with the seating force of a rubber O-ring.

Encapsulated O-Rings

Key Features

  • Temperature: −10 to 230 °C
  • Construction: FEP / PFA jacket over FKM or VMQ core
  • Applications: chemical, petrochemical, food, pharmaceutical

Typical Applications

  • Chemical and petrochemical process equipment
  • Pharmaceutical and fine-chemical reactors
  • Food and beverage processing
  • Strong acid, solvent and oxidiser service
  • Large-diameter static flanges where solid PTFE would creep

Custom Options & Ordering

  • Construction: seamless FEP or PFA jacket over FKM or VMQ (silicone) core
  • Temperature: −10 to 230 °C
  • Standard and large custom diameters
  • Solid-core and hollow-core constructions

Request a Quote

Tell us your medium, working temperature, pressure and dimensions and we will recommend the compound and geometry for your duty. Reach our engineering team at sales@aobo.biz or +86-573-87855272, or use our contact page.

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