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9K anti-extrusion ringsAnti-extrusion or backup ringsChesterton® 9K anti-extrusion rings are designed to prevent seals or o-rings from extruding into equipment clearances while under pressure. Each ring is individually manufactured and provides excellent performance, as a supporting element, to both piston and rod seals that are generally found in static or dynamic hydraulic applications. These anti-extrusion rings are available in various extrusion resistant materials and are located on the back-side or low pressure side of the sealing element they are supporting.
• Prevent extrusion of sealing element into equipment clearances, improve MTBR
• Static and dynamic applications, plant-wide usage
• Available in various profiles and materials | 
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| Material | AWC505, AWC520, AWC630, AWC665 |
| | Size Range | 6 to 1320 mm
(1 to 52 inch) |
| | Temperature Range | cryogenic to 230 C
(cryogennic to 450 F) |
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