Downhole PEEK back-up rings
JST's back up ring compensate for large temperature fluctuations. Using Back-up Rings allows O-Rings to be utilized in higher pressure applications, where larger extrusion gaps are required and where there are reciprocating or rotating movements.
Back-up Rings are protective and supporting elements with no sealing function.
The back up ring material could be PEEK, modified PTFE.
Downhole PEEK back-up rings
JST's back up ring compensate for large temperature fluctuations. Using Back-up Rings allows O-Rings to be utilized in higher pressure applications, where larger extrusion gaps are required and where there are reciprocating or rotating movements.
Back-up Rings are protective and supporting elements with no sealing function.
The back up ring material could be PEEK, modified PTFE.
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Advantages:
1. Prevents O-Ring extrusion. |
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Working Conditions |
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Working Pressure |
Temp range |
Media |
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≤10000PSI |
≤350°F |
Compatible with virtually all media and gases |
Size:
47.60X41.78X2.29mm
47.60X43.56X1.42mm
52.77X47.23X2.03mm
57.19X48.6X3.45mm
59.23X55.27X2.29mm
