– Special media require special sealing concepts.
The challenge lies not only in the small size of the molecules.
Special sealing requirements arise along the entire value chain—from electrolysis to compression to fuel cells.
A safe hydrogen seal is not a standard seal.
It requires specialized materials with low permeation and high RGD resistance – designed for extreme conditions up to 700 bar and temperature ranges from cryogenic to over +100 °C (tank, pipeline, electrolyzer).
In practice, this also involves approvals according to NORSOK and DVGW, for example – without the appropriate certifications, there is no acceptance and no series production.
A brief glimpse into everyday project work:
✔ Technology: Preventing leaks, safely controlling pressure and temperature changes.
✔ Purchasing: Materials and permeation determine service life, service intervals, and follow-up costs.
✔ Project & compliance: No approvals, no start of series production.
✔ Production: Only well-thought-out sealing concepts enable stable series processes.
Seals are not a secondary component – they influence the safety, availability, and cost-effectiveness of complete hydrogen systems.
ttv thinks about sealing technology systemically – from design and conformity to series-ready supply for OEM & MRO.
If you use hydrogen, seal it properly.