Efalon® (PTFE) O-rings are
generally used
as sealing components
at static and low speeds.
They are preferred in operations with impacts and vibrations, at very high pressures and
where force needed to tighten the gasket is low.
When flexibilty is required, channelled O-ring types should
be preferred.
If there is motion in the
operating environment, Efalon® (PTFE)
spiral rings are used together with elastomer O-rings. The
function of spiral rings is to prevent the elastomer O-ring from
being compressed between seat and axis because of
fluid pressure and friction and also to extend operation life.
