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Back-Up Rings

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Back-Up Rings

Back-up rings are washer-like devices that are used to prevent a seal from extruding through any gaps while under pressure. These seals are installed in the downstream side of the gland. Back-up rings are not seals themselves, but are usually used in conjunction with O-rings in high-pressure applications (over 1500 psi) for support or as spacers.


 

dmr-o-rings-back-up-rings-black-574-render-profile

574 Style (“Standard Only”)   

Molded of a 90A Durometer Buna-N Rubber. The 574 Style dished Cross section back-up rings provide excellent extrusion resistance. Stretched for installation, they return quickly to their original size for easy installation.
PLEASE NOTE: Sizes (Dash NO.) Corresponds to standard o-ring numbers

 

shaft-seal-150

SEAL

dmr-wave-springs-multiturn-single

RETAIN

caplug-500

PROTECT

dryslide-150-2

SLIDE

DMR_SlottedShim_A-075-150x150

ALIGN

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