
FEP/PFA Encapsulated O-Rings
Aerospace
Vulcan Seals is a leading manufacturer of FEP/PFA Encapsulated ‘O’-Rings and Seals globally.
We have the capacity to produce virtually any cross-section and diameter size or shape of seals, backed by a Stock Guarantee on the most common items and a short lead time on the rest. Carefully monitored in-house production and multiple levels of electronic inspection ensure high product quality and reliability.
An Encapsulated ‘O’-Ring is an ‘O’-Ring bound by a seamless and uniform FEP/PFA encapsulation, which encloses an elastomeric core, completely protecting it from the media. They combine the energising properties of an elastomeric ‘O’-Ring with the resilience to extreme temperatures and hostile chemicals of FEP/PFA.
Key Features
- Universal cam and groove hose coupling seal
- FEP encapsulation
- Silicone or Viton™ inner core
- Extreme chemical resistance
- Wide temperature range
- Non-contaminating
- Large range of sizes
Benefits
- No need to specify different elastomer materials for different applications
- Leak-free performance: low compression set and elastomer core energiser avoids cold flow leakage
- Easy installation and maintenance due to the non-stick surface with low coefficient of friction
- Sanitary, sterilisable and FDA / EC specification compliant encapsulation
- Superior seal for bulk liquid transfer couplings in manufacturing, distribution or storage
- Elimination of coupling leakage from chemical attack or creep issues, unlike traditional solid PTFE gaskets
Superior Gasket Quality
Vulcan Seals gaskets are produced to be the highest quality available in the market. We have eliminated common product issues found in the market, guaranteeing a consistent fit and reliable performance.
- Minimal encapsulation-to-core gap – reducing the potential for encapsulation damage
- Superior gasket flatness – ensuring even contact across the sealing surface
- Smooth sealing surface – free from warps and kinks to ensure no potential leak paths
- Exceptional chemical resistance – a cost-efficient replacement for FFKM seals for aggressive chemicals
Ring Shape Options
Non-standard ring shapes (e.g. square, rectangular, oval) are possible on request to suit specific application requirements.



