CryoGuard PEEK-N Seals

Beacon Industries, Inc. proposes a novel multi-disc cryogenic seal made from PEEK-N for cryogenic valves, couplers, quick disconnects, and fuel transfer systems. Traditional seals use a single surface that deforms under extreme cold and pressure, causing leaks. Our solution uses ten thin, stacked discs that compress and adapt under pressure, creating multiple barriers to stop leaks even after 66,000 pressure cycles at –253°C and 14,500 psi. This design resists brittleness, hydrogen embrittlement, and particle damage, ensuring safe, long-term operation in space and launch systems. The seal is additively manufactured (3D-printed) for custom fit and lower weight, solving critical challenges for NASA and commercial cryogenic systems.