Fep/pfa Encapsulated O Rings

Our offered FEP/PFA Encapsulated O Rings consist of a seamless PTFE jacket which surrounds the elastomer core providing the chemical inertness, and thus ensures sealing function and high resistance to corrosive media. Whilst the elastomer core energises the seal and provides even tension at the sealing point and thus a constant area pressure. Encapsulated seals were primarily designed to solve the growing problems of sealing corrosive fluids in industry, Development of PTFE encapsulated 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 PTFE jacket, FEP which is standard, and PFA for more demanding applications. The energising core is available in Viton or Silicone

Standard Design - This design of encapsulated seals consists of PTFE jacket with a solid elastomer core. The solid core ensures that the preferred 'low compression set' is achieved. The standard elastomer core is in Viton or Silicone
Hollow Core Design - This design of encapsulated seals consists of PTFE jacket with a hollow energising core of either Silicone or Viton. It is used for sealing application where more flexible or easier squeeze is required.
Square or Rectangular Design- This design act as a gasket rather than as an a Oa Ring and offers the total protection of the energising core by the PTFE FEP or PFA jacket.