In one of the world’s most advanced research environments, absolute reliability is everything.
The Deutsches Elektronen-Synchrotron (DESY) in Hamburg is a global leader in particle accelerator and photon science.
At its facilities – including PETRA III, FLASH, and the European XFEL – scientists study the structure of matter at the atomic level.
Their work pushes the boundaries of modern technology and materials science.
However, operating such complex systems requires perfect sealing performance.
Even the smallest helium leak can cause costly downtime and high maintenance efforts.
This is where revoseal technology proves its strength.
The Challenge: Absolute Tightness Under Extreme Conditions
In DESY’s helium circuits, conditions are far from ordinary.
Temperatures drop to −271 °C, and pressures range from 30 mbar up to 18 bar.
At the same time, the environment must stay ultra-clean and contamination-free.
To prevent helium contamination, each connection must stay below a leak rate of 1 × 10⁻⁸ mbar × l / (s × m), a precision level far beyond standard industry requirements.
Previously used gaskets caused recurrent leakages.
Copper rings had to be inserted into V-grooves, and the flange surfaces needed manual machining.
This was not only time-consuming but also failed to ensure long-term tightness.
The Solution: revoseal JP Gaskets
By switching to revoseal JP gaskets, DESY achieved permanent leak-free performance – without reworking the flanges.
The innovative revoseal design combines metal and soft materials in a unique hybrid concept.
It offers several key benefits:
- High surface pressure even at low bolt torques
- Metallic sealing teeth that adapt precisely to flange roughness – without damage
- Prevention of cross-diffusion for lasting helium tightness under cryogenic conditions
Thanks to this design, revoseal sets a new benchmark in cryogenic sealing performance.
It combines durability, precision, and efficiency, even in extreme environments.
Proven Results: Reliability, Safety, and Efficiency
✅ Permanent leak-tight connections – no recurrence of leakage
🧊 Reliable operation from −271 °C to +20 °C
⏱️ No flange machining required – faster and easier installation
💰 Lower maintenance costs and improved uptime
🔒 High process reliability under continuous accelerator operation
Revoseal: Engineering Confidence for the Most Demanding Applications
The collaboration with DESY Hamburg shows how revoseal JP gaskets ensure reliability and purity in highly sensitive research environments.
Wherever absolute sealing integrity is essential – in cryogenic systems, vacuum technology, or particle accelerator applications – revoseal delivers durable, efficient, and proven solutions for extreme conditions.


