FEP Encapsulated O-Rings

NES Offers High-Quality FEP O-Rings for Hostile Environments 

At NES, we specialise in providing FEP encapsulated O-rings that are highly recommended for hostile environments.  These O-rings are ideal for applications where a standard O-ring is not sufficient in terms of chemical resistance. 

Our FEP encapsulated O-rings are used in industries such as chemical, petrochemical, pharmaceutical, and food industries where chemical resistance is crucial.  They are mainly used in static applications but can also be effective in rotary applications that offer slow dynamic movement and short movements. 

Benefits of FEP O-Rings 

There are several benefits of using our FEP encapsulated O-rings, including: 

  • Wide range of applications: These O-rings offer a great level of resistance within a wide range of applications.  They can be used in applications where operational temperatures range from -60°C to +260°C (with a silicone core) and -20°C to +204°C (with a fluorocarbon core). 
  • High elasticity: Our FEP encapsulated O-rings offer a much better level of elasticity compared to standard and solid PTFE O-rings. 
  • Low friction: These O-rings have a low friction coefficient, which reduces wear and tear on equipment and promotes longer-term use of applications. 
  • Chemical resistance: Our O-rings are highly resistant to chemicals, making them ideal for use in chemical and petrochemical industries. 

Flexibility and Interchangeability 

Our FEP encapsulated O-rings are flexible and completely interchangeable with the standard offering of elastomeric O-rings.  However, due to the FEP sheath, they are less flexible than standard O-rings and have a limited level of stretch and higher permanent deformation.  As a result, fitting an FEP O-ring may require auxiliary tools to maximise the efficiency of the fitting process. 

Contact Us  If you are interested in learning more about our FEP O-ring products, contact our friendly NES Sales Team.  We only supply the highest quality products and by speaking to us, we can discuss your specific needs and requirements and put together a service to match yours.  You can also download our NES NCAP™ Informational PDF to learn more about our products and services.


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