Teflon® Encapsulated O-rings

 

Encapsulated o-rings are double-action sealing elements. The seal is provided by the FEP or PFA encapsulation; whereas, the elastomer o-ring (FKM / Viton rubber, Silicone), serves as an elastic pretension element exerting a permanent and uniform pressure against the mating surface.

Encapsulated o-rings are used wherever conventional elastomer o-rings cannot be used due to their inadequate chemical resistance. Encapsulated o-rings are primary used as static seals (axial and radial) for lids and covers, flanges etc.

 

 

Material available

Viton (Fluorocarbon Rubber)

  • recommended for use in hot chemical corrosive environments that are very degrading to most other rubber compounds
  • use in Aerospace, Oil and Gas, Automative and Chemical manufacturing
  • temperature range: 0° F (-17°C) to +400°F (204°C), 75 Durometer

Silicone

  • possesses mechanical properties similar to Viton compounds but with slightly lower compression set resistance.
  • excellent heat resistance and the best low temperature flexibility of all elastomers
  • temperature range: -60° F (-51°C) to +400°F (204°C), 70 Durometer
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