Advantages of stainless steel butterfly valve
Stainless steel butterfly valve can resist oxidation in the atmosphere, with resistance to acid, alkali, salt media corrosive, so the full stainless steel butterfly valve is wear-resistant, corrosion-resistant and so on. These characteristics can fully reflect the advantages of stainless steel materials, but in some special environmental media or the possibility of rust.
Stainless steel butterfly valve is based on the formation of a thin and solid layer of stable chromium-rich oxide film (protective film) on its surface, preventing oxygen atoms from continuing to penetrate, continue to oxidize, and obtain the ability to resist corrosion. Once the film is damaged for some reason, oxygen atoms in the air or liquid will penetrate it, or iron atoms in the metal will separate out and form loose iron oxide, and the metal surface will continue to corrode.