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

09 May '17, 00:44

May 9, 2017, 12:44 a.m.
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Answer:

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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09 May '17, 00:46

May 9, 2017, 12:46 a.m.
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