FEP / PFA Encapsulated O-ring

Benefits :

• Combines the energising properties of elastomers with FEP / PFA superior chemical resistance, inert and high purity characteristics
• No cold flow problems due to the elastomer core, unlike solid PTFE ring
• Provides a cost efficient alternative to expensive Perfluoroelastomer rings
• Virtually any cross-section and diameter size or shape of seals can be produced to meet your application
• Full traceability through production and multi-level automated inspection to ensure high product quality and reliability
• Backed by a stock guarantee of 20,000 product lines on a vast majority of BS ISO 3601 orings -1/AS 568 sizes and most common non BS/AS sizes, with non stocked sizes available in short lead times
• Compliant with key global regulatory standards - FDA, USP Class VI, EC 1935/2004 & LABS - Ideal solution for pharmaceuticals, food and beverage, paint and semiconductor industries

Extreme Seal

Encapsulated O-rings are built to perform in conditions where regular elastomer seals lose strength. Their strong fluoropolymer jacket helps them stay stable in aggressive chemicals, rapid temperature shifts, and continuous mechanical pressure.

These seals hold their shape well, recover quickly after compression, and maintain a consistent barrier even in harsh processing environments. Their steady performance makes them suitable for demanding systems that rely on FEP encapsulated O-rings or PFA encapsulated O-rings for long-lasting sealing.

Design Tips for Encapsulated O-Rings

Choosing the right encapsulated O-ring helps improve sealing performance and service life. Always confirm the core type, jacket material, and temperature range based on your application. A proper groove design also ensures correct compression without stressing the ring.

Check media compatibility, pressure levels, and movement patterns to avoid over-compression or stretching. These steps help the seal perform smoothly in systems that use PTFE encapsulated O-rings or Teflon encapsulated O-rings for enhanced durability.

Design Recommendation Disclaimer

Product performance is dependent on many factors and operating conditions. Thorough independent product and equipment testing is always advised before proceeding with installation for the final intended use.

Resilience and Chemical Resistance Redefined

Encapsulated O-rings are known for their ability to resist harsh chemicals while staying flexible during operation. Their fluoropolymer jacket shields the core from corrosive fluids, aggressive media, and temperature variations, helping FEP encapsulated O-rings deliver steady performance in demanding systems.

The combination of protection and elasticity supports long-term sealing reliability. This makes them a smart choice for industries that require durable solutions like PFA encapsulated silicone O-rings, especially in applications exposed to continuous chemical contact.

FEP-encapsulated O-Rings (Fluorinated Ethylene Propylene)

• Built with a flexible elastomer core and a durable FEP jacket for stable sealing.
• Suitable for systems that use FEP encapsulated silicone O-rings to handle chemical exposure.
• Offers low friction and smooth operation in dynamic and static applications.
• Resist swelling, permeation, and surface wear in aggressive media.
• Trusted in food, pharma, and chemical lines that often prefer PTFE encapsulated O-rings for added durability.

PFA-encapsulated O-Rings (Perfluoroalkoxy)

• Higher mechanical strength for better performance in demanding setups.
• Improved resistance to cracking under continuous thermal cycling.
• Better stress recovery, making PFA encapsulated O-rings suitable for long-term sealing needs.
• Enhanced purity, ideal for sensitive applications in pharmaceuticals and food processing
• Handles tougher chemicals compared to standard Teflon encapsulated O-rings, offering longer service life.