B08 standard modular back-up rings are specifically engineered to resist gap extrusion and prevent catastrophic damage to seals and O-rings in high-pressure environments. By fitting between the seal and the extrusion gap, the B08 profile effectively bridges clearance gaps that occur under high temperatures or intense pressure cycles, significantly increasing the pressure rating of your existing sealing system. Our CNC turned B08 rings provide a robust secondary support that eliminates "seal nibbling," a common cause of premature failure.
| Technical 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, Scarf, Spiral | Modular Options |
| Material Option 1 | Virgin / Filled PTFE | Chemical Resistance |
| Material Option 2 | PEEK / Carbon PEEK | Ultra-High Pressure |
| Material Option 3 | POM / Nylon | Rigid Support |
| Material Option 4 | NBR 90 Shore A | High Hardness Rubber |
| Material Option 5 | Polyurethane (PU) | Wear Resistance |
- Standard modular design specifically engineered to resist gap extrusion and safeguard O-rings from damage.
- Provides a robust physical bridge for larger extrusion gaps, effectively preventing seal nibbling and material loss.
- Flexible installation options with one or two rings depending on pressure direction to maximize seal longevity.
- Versatile material compatibility suitable for extreme industries from oil-field exploration to pharmaceutical production.
We specialize in bespoke sealing solutions, offering custom-engineered B08 back-up rings tailor-made to your specific pressure conditions and hardware dimensions. 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 provides Direct Factory Price on all B08 back-up rings with no-mold requirements for non-standard profiles 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.
