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Back-Up Rings | Back-Up Ring SRIBack-Up Ring SRIBack-Up Ring SRIProduct descriptionSlit bea<strong>ring</strong> component with rectangularcross-section for ISC O-Rings sealing onthe inside.ApplicationBea<strong>ring</strong> element to prevent gapextrusion of radial sealing ISC O-<strong>ring</strong>sused dynamically.MaterialFig. 1Back-Up Ring SRIMaterialCodeUnfilled PTFE PTFE00/F52800 or PTFE 177509Product advantagesEnlargement of the operatingconditions of O-<strong>ring</strong>sHigh material and product qualityWide selection of standarddimensions.Operating conditionsMediaAll fluids used in hydraulics* according to the O-<strong>ring</strong> material usedFitting & installationThe surface finish requirementscorrespond to the values stipulated;→ Technical Manual.Gap width: when using PTFE spiralback-up <strong>ring</strong>s, gap widths up to 0,3 mmcan be bridged at operating pressures
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