Metal bellows WITZENMANN

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.

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