B10 external sealing trapezoidal back-up rings are engineered with a positively activated design to resist external seal extrusion and prevent catastrophic damage in ultra-high pressure applications. This unique trapezoidal profile ensures that the backup ring is effectively energized under pressure to bridge clearance gaps, significantly increasing the pressure rating of o-rings and dynamic seals. Our high-precision CNC turned materials, including PEEK, POM, and high-hardness PU, offer superior resistance to seal nibbling and material loss even under extreme temperatures. By providing a robust physical barrier between the seal and the extrusion gap, the B10 profile ensures long-term system integrity for critical hardware in industries like oil-field exploration and heavy mobile equipment.
| Technical Parameter | Specification | Material Remark |
|---|---|---|
| Pressure Resistance | Up to 150 MPa+ | Ultra-High Pressure |
| Temperature Range | -200°C to +260°C | PTFE® / PEEK® |
| Design Geometry | Trapezoidal Profile | Positively Activated |
| Media Compatibility | Oil, Water, Chemicals, Gas | Universal |
| Material Option 1 | PTFE / Filled PTFE | Standard Chemical |
| Material Option 2 | POM (Polyacetal) / PA (Nylon) | High Modulus |
| Material Option 3 | PEEK / Carbon PEEK | Extreme Pressure |
| Material Option 4 | High Hardness PU (Polyurethane) | Wear Resistant |
| Material Option 5 | NBR 90 / FKM 90 (Rubber) | Static Support |
- Trapezoidal positively activated design specifically engineered to resist extrusion in ultra-high pressure environments.
- Available in endless or split configurations to ensure a perfect fit for both internal and external sealing gaps.
- Dual-functionality as a high-strength pressure barrier and a protective shield against seal nibbling and material loss.
- Superior material versatility including PTFE, POM, and PA to withstand abrasive substances and extreme temperatures.
Our High-Precision Lathe-Cut process ensures each B10 trapezoidal back-up ring adheres to tight tolerances, providing a perfect fit for critical hardware and leak-free performance. Leveraging instant seal machining, we offer 24h fast lead times for emergency production, ensuring your critical operations resume without costly downtime. Our ISO 9001 certified facility delivers Direct Factory Price with zero-tooling fees for bespoke dimensions 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.
