FEP Encapsulated O-Ring / PFA Encapsulated O-Ring
With an elastomer core and a jacket of Teflon® fluoropolymer, FEP encapsulated O-ring combine the excellent chemical resistance of PTFE with the elastic behavior of an elastomer. The core is either FKM, Silicone or Stainless Steel. The jacket is FEP or PFA.
APPLICATIONS
FEP encapsulated O-ring is a top choice when a standard O-ring has inadequate chemical resistance for an application and or when a solid PTFE O-ring does not have the elasticity for reliable, long term fluid sealing.
Encapsulated O-ring is often recommended where chemical resistance and or hygiene is required.
Typical applications for encapsulated o-ring include:
Materials for encapsulated o-ring include:
Why consider encapsulated o-ring
Very good resistance to nearly all media (exceptions are alkali metals and some fluorine compounds)
Applications in broad range of temperatures
Superbly suited for use in the food, chemical and pharmaceutical industries
Low contamination
Low permeation
Low coefficient of friction prevents the stick-slip effect
FDA-compliant
Cost-effective, high-performance seal for many critical application areas
Characteristics of FEP and PFA
FEP and PFA are very similar in their characteristics. PFA stands out for its greater thermal resistance at temperatures exceeding 200 °C.
Advantages of FEP encapsulation
Advantages of PFA encapsulation
FEP Encapsulated Gasket – Camlock Seal
This type of FEP Encapsulated Gasket in sections of square and rectangular design is applied for cam lock coupling. Following shows the standard sizes for this type of camlock gasket.
| Coupling Nominal Size (mm) | Coupling Nominal Size (in) | Outside Diameter (mm) | Internal Diameter (mm) | Thick -ness (mm) |
| 12.7 | 1/2 | 26 | 17 | 4 |
| 19 | 3/4 | 35 | 22.2 | 5.54 |
| 25.4 | 1 | 39.7 | 27 | 6.35 |
| 31.7 | 1-1/4 | 49.2 | 34.5 | 6.35 |
| 38 | 1-1/2 | 55.6 | 41 | 6.35 |
| 50.8 | 2 | 66.7 | 50.8 | 6.35 |
| 63.5 | 2-1/2 | 79.4 | 60.3 | 6.35 |
| 76.2 | 3 | 94.5 | 76.2 | 6.35 |
| 101.6 | 4 | 123.8 | 101.6 | 6.35 |
| 127 | 5 | 150 | 123.8 | 6.35 |
| 152.4 | 6 | 179.4 | 152.4 | 6.35 |
Free Samples
Want to try before you buy?
We are more than happy to provide a sample so you can try before you buy. Please use the links provided to browse our products or contact us for help and advice.
