Back-up rings

A back up ring prevents extension and extrusion of a packing or an o-ring.

The material of the back up ring is often PU, PTFE or POM.

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Materials​

PTFE

Teflon.

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​SEALTECH ApS  š•  Kratbjerg 238 C  š•  DK-3480 Fredensborg  š•  Phone: 70 28 10 60  š•  ​E-mail: info@sealtech.dk