Back Up Rings Anti Extrusion Seals for Industrial Applications

An O-ring is the primary sealing element, while a backup ring is a complementary support component made of harder material that prevents the O-ring from extruding into clearance gaps under pressure.

Back-up rings significantly increase O-ring pressure capability beyond standard ratings, with specific limits depending on material hardness, groove design, and operating temperature. Consult our technical team for application-specific ratings.

Yes, T-seals are designed for both dynamic and static applications, featuring reinforced anti-extrusion rings that maintain sealing integrity under reciprocating motion and extreme operating conditions in hydraulic systems.

We offer back-up rings in 90 durometer NBR and FKM (Viton), selected for their higher hardness properties. Material selection depends on fluid compatibility, temperature range, and specific application requirements.

Yes, back-up rings are suitable for food and beverage applications when manufactured from FDA-compliant materials. We provide appropriate material certifications and documentation for regulated industries upon request.

Backup ring sizing follows our technical diagrams based on your O-ring's AS568 designation. Our engineering team provides consultation to ensure proper sizing and configuration for your specific gland design and pressure requirements.