15/05/2026
FITOK Bellows-Sealed Valves
As manufacturing processes become increasingly precise, users of instrumentation valves and fittings are placing higher demands on product performance. In addition to standardized material selection, accurate opening and closing, and clean flow paths, critical performance indicators—such as leakage rates—are becoming more stringent. Bellows-sealed valves use a metal bellows as the stem sealing element. The bellows compresses and expands as the stem moves, forming a reliable dynamic seal. As a result, bellows-sealed valves are particularly well suited for applications involving toxic, flammable, explosive, or other hazardous media, as well as systems where pipeline sealing integrity is critical. These valves are widely used in semiconductor manufacturing, fine chemical processing, pharmaceuticals, nuclear power, vacuum systems, and low temperature applications.
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https://www.fitok.com/blog/detail-17-c5d518889746cebb.html