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Corrugated bellows
HYDRA® corrugated bellows are made by hydraulic forming of thin-walled tubes. They can have one or more plies depending on the requirements profile.
Single-ply bellows have small spring rates and are employed particularly in vacuum technology.
Multi-ply bellows have a high compressive strength and at the same time high flexibility. They are used, for example, as valve spindle seals with working pressures up to 400 bar.
Characteristics:
- Flexible
- High compressive strength
- Vacuum-tight
- Heat-resistant
- Corrosion-resistant
- Ageing-resistant
- Torsionally rigid
- Cost-effective
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