What are anti-extrusion or back up rings used for?

asked 08 May '17, 20:44

May 8, 2017, 8:44 p.m.
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Back-up rings used to support O-Ring at pressure above 1500 psi.

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Prevents the O-Ring from being squeezed between the clearance of the piston and cylinder wall.

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answered 08 May '17, 20:46

May 8, 2017, 8:46 p.m.
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edited 24 May '17, 03:15

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