Because FEP is a hard plastic
rather than a stretchy elastomer, it is uncommon to see an o-ring that
is made entirely of TFE or FEP. However, there are applications where
FEP is the perfect material. For example some automotive steering
systems use FEP o-rings for fittings and they are also used in paint
guns. (By the way, a tip on installing these rigid seals is to heat them
in hot water before the installation so they will be slightly bigger
and slip on easier.)car oil seals high quality.
When someone says they want a FEP o-ring they may actually be talking about a FEP encapsulated o-ring. Here the FEP is made into a jacket or sleeve that will completely enclose an elastomer which has the desired mechanical properties needed for the o-ring, such as resistance to cold flow. Since FEP is practically chemically inert it allows the o-ring to resist almost all chemicals and will not allow corrosive fluids or gases to harm the elastomer.car oil seals high quality.
The extremely low coefficient of friction of FEP makes the encapsulated o-ring an ideal choice where surface wear might otherwise be a problem. By itself, the material FEP exhibits a useful service life from below -100° F, to temperatures of over 500° F.oil sealing. Its resistance to solvents remains excellent throughout a wide range of temperatures. In addition, the low dielectric constant and electrical resistance also remain intact throughout this range.
Some of the advantages of this material are:
Corrosion resistant
Abrasion resistant
Low absorption
Non-permeable
Uniform dimensions
Nonflammable
Reusable
Chemically inert
High impact strength
Smooth surface
No swelling
Comes in all sizes including metric
A FEP encapsulated o-ring is often used as a static o-ring but can be used as a rotay lip seal if abrasion is handled in some way, such as mixing the FEP with graphites.
FEP encapsulated o-rings are manufactured in AS568 standard sizes. mechanical seal.However, since they are not molded in the same way as o-rings mamufactured from one material, the inside diameter is not necessarily the same as a molded seal. The encapsulated o-ring will have a greater cross-sectional and inside diameter tolerance range than that of the AS568 standards.
The chart below gives general information on a FEP o-ring. The properties of an encapsulated o-ring will be somewhat different than that of this plastic by itself. car oil seals high quality.
When someone says they want a FEP o-ring they may actually be talking about a FEP encapsulated o-ring. Here the FEP is made into a jacket or sleeve that will completely enclose an elastomer which has the desired mechanical properties needed for the o-ring, such as resistance to cold flow. Since FEP is practically chemically inert it allows the o-ring to resist almost all chemicals and will not allow corrosive fluids or gases to harm the elastomer.car oil seals high quality.
The extremely low coefficient of friction of FEP makes the encapsulated o-ring an ideal choice where surface wear might otherwise be a problem. By itself, the material FEP exhibits a useful service life from below -100° F, to temperatures of over 500° F.oil sealing. Its resistance to solvents remains excellent throughout a wide range of temperatures. In addition, the low dielectric constant and electrical resistance also remain intact throughout this range.
Some of the advantages of this material are:
Corrosion resistant
Abrasion resistant
Low absorption
Non-permeable
Uniform dimensions
Nonflammable
Reusable
Chemically inert
High impact strength
Smooth surface
No swelling
Comes in all sizes including metric
A FEP encapsulated o-ring is often used as a static o-ring but can be used as a rotay lip seal if abrasion is handled in some way, such as mixing the FEP with graphites.
FEP encapsulated o-rings are manufactured in AS568 standard sizes. mechanical seal.However, since they are not molded in the same way as o-rings mamufactured from one material, the inside diameter is not necessarily the same as a molded seal. The encapsulated o-ring will have a greater cross-sectional and inside diameter tolerance range than that of the AS568 standards.
The chart below gives general information on a FEP o-ring. The properties of an encapsulated o-ring will be somewhat different than that of this plastic by itself. car oil seals high quality.
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