B09 contoured back-up rings are precision-engineered to reduces damage or drag out during assembly while significantly lowering the risk of O-ring extrusion under intense pressure. This specialized profile features a contoured surface that conforms to the O-ring’s geometry, providing a robust physical bridge across extrusion gaps that occur in high-temperature or high-pressure environments. Our high-precision CNC turned materials offer superior modulus and strength to eliminate seal nibbling, extending the service life of your hydraulic and pneumatic components. Whether for static or dynamic sealing, our B09 rings ensure your critical hardware remains leak-free and protected against material loss under the most demanding industrial conditions.
| echnical Parameter | Specification | Material Remark |
|---|---|---|
| Pressure Resistance | Up to 100 MPa+ | Depending on Material |
| Temperature Range | -200°C to +300°C | PEEK® / PTFE® |
| Extrusion Gap Support | Up to 2mm+ | Material Dependent |
| Design Type | Endless or Split (Scarf/Step) | Contoured Profile |
| Material Option 1 | Virgin / Filled PTFE | Chemical Resistance |
| Material Option 2 | PEEK / Carbon PEEK | Ultra-High Pressure |
| Material Option 3 | POM (Polyacetal) | Rigid Support |
| Material Option 4 | PU (Polyurethane) | - |
| Material Option 5 | NBR 90 / FKM 90 | High Hardness Rubber |
- Contoured design specifically engineered to reduce drag out and prevent O-ring damage during assembly.
- Available in endless or split (scarf cut) configurations to provide added extrusion resistance under high pressure.
- Dual-functionality as a high-strength bearing element and a bridge to close larger extrusion gaps.
- Excellent dry-running properties and material strength to safeguard seals in abrasive and chemical environments.
We specialize in bespoke sealing solutions, offering custom-engineered B09 contoured back-up rings tailor-made to your specific operating conditions and unique hardware dimensions. With no-mold required technology, we provide cost-effective small batches and low MOQ test samples with zero-tooling lead times, accelerating your development cycle. Our ISO 9001 certified facility ensures high-precision B09 profiles with 24h fast lead times for critical industrial applications up to 3000mm.
Disclaimer: Variseal®, FlexiSeal®, and other brand names are registered trademarks of their respective owners. Carlock Sealing products are high-quality equivalents and are not affiliated with these trademark holders.
