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teflon back up ring

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Product Summary

Teflon back up rings are used with a primary seal such as an o-ring in both dynamic and static applications to prevent extrusion of the oaring when it is subject to high pressures, there are excessive extrusions gaps present in the application, or the o-ring is exposed to elevated temperatures.

The Teflon backup rings as the name suggest are back ups to prevent extrusion in rubber o-ring sealing systems. It is a common phenomenon for rubber o-rings to extrude especially with present day fluid systems that are a combination of high pressures and high temperatures. And this is a situation where the Teflon backup rings play a significant role in preventing o-ring extrusion.

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