Freudenberg develops CO2 seals for power industry

Weinheim, Germany – Freudenberg Sealing Technologies (FST) has developed two new seals to for electric substations where carbon dioxide is used as quenching gas.

Regulations in Europe and the US have limited the use of fluorinated gases and a new alternative is the use of CO2 as a quenching gas – being 22,800 times less damaging than SF6 on the environment.

While being more climate-friendly than SF6, the CO2-based materials migrate “much too easily through the sealing material,” FST said in a 27 June release.

“It is like…

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