Hastelloy butterfly valve for the three-dimensional eccentric metal seal structure, seal type metal to metal seal, metal seal can be exchanged for the metal seal, Hastelloy plate and high-performance PTFE (graphite) composite plate seals on the metal seal. Hastelloy valve special sealing system to ensure that from ultra-low temperature to ultra-high temperature range with high sealing performance. The main wet chlorine, all kinds of oxidative chloride, chloride solution, sulfuric acid and oxidative salts, both in low temperature and hydrochloric acid have good corrosion resistance. Hastelloy valve suitable medium: strong corrosive media.
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