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O-Rings
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Sealing Technology
O-Rings
Back-Up Rings
Extruded O-Ring Cord
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Back-Up Rings
Back-Up Rings (Anti-Extrusion Rings) are installed with O-Rings and Quad Rings to prevent gap extrusion in applications above approximately 8Mpa (80 bar, 2100 psi).
Two Back-up rings are to be fitted on a double acting application.
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Quad Rings