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.
2. Prolongs O-Ring service life.
3. Allows O-Rings to be utilized in higher pressure applications, where larger extrusion gaps are required and where there are reciprocating or rotating movements.
4. Compatible with virtually all media and gases.
5. Easy installation.
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Working Conditions
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Working Pressure
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Temp range
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Media
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≤10000PSI
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≤350°F
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Compatible with virtually all media and gases
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Size:
34.90X29.36X1.78mm
47.60X41.78X2.29mm
47.60X43.56X1.42mm
52.77X47.23X2.03mm
57.19X48.6X3.45mm
57.62X52.08X2.03mm
59.23X55.27X2.29mm
