Ptfe Encapsulated O Rings

Ptfe encapsulated o rings comprise of an encapsulated core which has been seamlessly encapsulated in a jacket of ptfe.

Ptfe encapsulated o rings.

The combination of these components creates an o ring that is virtually chemically inert and compression set resistant for use in harsh sealing environments. Fep ptfe encapsulated o rings combine ultimate chemical resistance of fep ptfe with the compressability of rubber or steel spring core. Standard or imperial sizes come in fractions of an inch. Kalrez costs an arm and a leg and ptfe while it may be chemically compatible very limited capability to recover after it has been compressed.

Ptfe encapsulated o rings are o rings consisting of a seamless and uniform ptfe fep pfa encapsulation jacket which completely encloses a core material viton fluoroelastomer also available in silicone. Encapsulated o rings not all o rings are created equally. Lubrication is less critical and can sometimes be omitted. The encapsulated o ring is intended to close off potential leak paths between mating surfaces in both static and dynamic applications.

Select from the various core options to satisfy your application. Encapsulated o rings are offered in two ptfe grades fep and pfa with a selection of three different energizers which give the user a choice depending on temperature and operating environment. An o ring seal is a means for closing off a passageway preventing an unwanted escape of a gas or fluid and comes in a donut shape. When it comes to chemical service applications viton has it s limitations.