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The XB51 profile is an asymmetric single acting / uni-directional hydraulic piston working u-cup seal complete with a combined pressure activated guide / back-up ring to enable use up to 700 bar as standard and higher if required with the correct choice of ring material.

The seal has a shortened dynamic lip which provides improved low friction sealing and compression set characteristics in comparison to standard symmetrical u-rings and has an interference fit to ensure a stable fit in the housing and to provide a tight leak free static seal across the inside diameter.

This seal is available in several of DMR’s high performance materials to provide the designer or repairer with exceptional extrusion resistance, low compression set and outstanding wear properties.