Information
Teflex® O-Rings
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Product Overview Teflex® seals provided designers and engineers with a seal that combined the chemical resistance of PTFE with the resilience of rubber. Encapsulated seals are available with two types of jacket - FEP and PFA. The energising core is available in viton® or Silicone. For low temperature applications or where lower closure forces are required, either a solid silicone or hollow silicone is specified. |
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| Compound Reference | Temperature Range | Application | Material Family Designator |
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| FEP/VMQ | -60 to +200oC | General purpose encapsulated O-Ring, with improved compression-set characteristics at low temperatures. Not recommended for vacuum applications due to high gas permeability. Not for dynamic applications. | FEP/SIL |
| FEP/FKM | -20 to +200oC | High thermal and chemical resistance. Not recommended for dynamic applications. Recommended for vacuum applications. | FEP/FPM |
| PFA/VMQ | -60 to +260oC | High temperature encapsulated O-Ring. Not recommended for vacuum applications. Not for dynamic applications. | PFA/SIL |