Back up ring, mainly used with O-rings to avoid gap extrusion. Split and non split design available. Especially for O-rings to avoid gap extrusion. Split and non split design available.

Standard active back up ring for piston seal type PD. Normally already included in PD-type seal profiles, designed for automatic pressure activation. Split and non split design available.

Standard active back up ring for rod seal type PD. Normally already included in PD-type seal profiles, designed for automatic pressure activation. Split and non split design available.

Triangular back-up ring for rod applications, fits in special shaped housings. Also used as integrated active back up ring in special high pressure or low friction seal profiles, split and non split design available...

Triangular back-up ring for piston applications, fits in special shaped housings. Also used as integrated active back-up ring in special high pressure or low friction seal profiles. Split and non split design available.