The electric butterfly valve can resist oxidation in the atmosphere and is resistant to corrosion in acid, alkali and salt media, so the fully electric butterfly valve has the characteristics of wear resistance and corrosion resistance. These characteristics can fully reflect the advantages of stainless steel material, but rust may still occur in some special environmental media. Here are some examples: the surface of electric butterfly valve adheres to organic juice, which forms organic acid in the presence of water and oxygen, and the organic acid will corrode the metal surface for a long time. There are dust containing other metal elements or attachments of dissimilar metal particles on the surface of the electric butterfly valve. In the humid air, the condensate between the attachments and stainless steel forms a micro battery, which causes electrochemical reaction and damages the protective film, which is called electrochemical corrosion. There are acid, alkali and salt substances on the surface of electric butterfly valve, causing local corrosion. When the electric butterfly valve encounters condensate in polluted air, it forms sulfuric acid, nitric acid and acetic acid liquid spots, causing chemical corrosion.

With the development of electric valves, there are many well-known enterprises at home and abroad in the application field of electric butterfly valves. Now electric butterfly valves are more and more widely used in technology. The products have won the favor of customers with excellent quality and perfect after-sales service. The main connection methods are flange type and wafer type. It is an important performance unit in the field of industrial automation control. It belongs to electric valve and electric regulating valve. It is widely used in textile, power station, petrochemical industry, heating and cooling, pharmacy, shipbuilding, metallurgy, light industry, environmental protection and other fields.