- Trained on our vast library of engineering resources.

Trelleborg Sealing Solutions Americas Datasheets for Back-up Rings

Back-up rings or anti-extrusion rings are washer-like devices used to prevent seals from extruding through gaps while under pressure. Seals are installed in the downstream side of the gland.
Back-up Rings: Learn more

Product Name Notes
Back-up Rings are commonly used to protect seals from the effects of extrusion when pressurised adjacent to a housing gap. A wide range is available to suit all seals and...
Back-up Rings are installed together with O-Rings and Quad-Ring® / X-Rings to prevent gap extrusion in applications above 5 MPa / 725 psi. Available in spiral, cut or uncut designs...
Back-up Rings are installed together with O-Rings and Quad-Ring® Seals to prevent gap extrusion in applications above 5 MPa / 725 psi. Available in spiral, cut or uncut designs in...