In extreme operating environments—including high temperature, high pressure, aggressive chemical exposure, and vacuum conditions—conventional elastomeric seals often prove inadequate. Metallic seals demonstrate superior resilience, with the CA6 Spring-Energized Axial Metallic C-Seal (Open-Top Design) standing as a pinnacle innovation for axial sealing applications across mission-critical industries.
Core Structure & Engineering Features
The CA6 seal combines structural rigidity with dynamic compensation:
- C-Shaped Metal Jacket (Open-Top)
- Fabricated from high-performance alloys (e.g., 316L/904L stainless steel, Inconel® 718/X-750)
- Dual-seal mechanism formed by upward-oriented C-cross-section
- Helical Spring Core
- Precision-wound spring delivers constant radial force for operational variance compensation
- Axial Sealing Specialization
- Activated through axial compression via flange bolting
Performance Advantages
| Characteristic | Capability Specification |
|---|---|
| Pressure Resistance | ≤690 bar (10,000 psi) |
| Temperature Range | -250°C to +538°C (Inconel® alloys) |
| Compression Recovery | >90% elastic recovery after 20% crush |
| Corrosion Resistance | NACE MR0175 compliant for sour service |
| Vacuum Integrity | He leak rate ≤1×10⁻⁹ mbar·L/s |
| Radiation Tolerance | Neutron absorption <2.5 barns |
| Service Life | >5 years (200+ thermal cycles) |
Industry Applications
- Energy Sector: BOP stacks (API 16A), nuclear reactor coolant pumps (ASME III)
- Process Industries: Hydrocracking reactors (EN 13445), cryogenic LNG valves
- Advanced Manufacturing: Semiconductor etching chambers (SEMI F37), aero-engine fuel systems
Installation Protocol
- Groove Specification: ASME B16.20 compliant (Ra≤0.8μm)
- Bolt Loading: Torque-angle controlled multi-stage tightening
- Surface Treatment: Application of MoS₂-based lubricant (film thickness ≤50μm)
Post time: Jul-22-2025
