Bellows‑sealed valves adopt bellows sealing instead of traditional packing seal, featuring zero external leakage and superior tightness. They effectively prevent medium leakage.

Widely used for toxic, harmful, flammable‑explosive, radioactive, high‑purity and corrosive media in petrochemical, fine chemical, pharmaceutical, energy, nuclear power, LNG and heating industries, avoiding environmental pollution from leakage and ensuring production safety.