Titanium is a metal with high chemical activity. However, it has excellent corrosion resistance to many corrosive media. The reason is that titanium and oxygen have a good affinity, which is very easy to react with oxygen and generate a solid and dense pure oxide film on its surface. In many media with severe corrosion conditions, this oxide film is very stable and difficult to dissolve. Even if it is damaged, it can repair itself and regenerate quickly as long as there is sufficient oxygen. Titanium valves mainly use titanium metal materials to have good stability and self passivation ability of oxide film in strong corrosive environment, which can resist strong corrosion under various harsh conditions. Whether the titanium valve can resist the corrosion of the working environment medium depends on the chemical stability of the "passive oxide film" on its surface in the corrosive medium. For neutral, oxidizing and weak reducing media environment, "passive oxide film" itself has good stability. For reducing corrosion media with high temperature or low PH value, in order to improve the stability of its "passive oxide film", corrosion inhibitors (such as air, water, heavy metal ions and anions) can be added, such as surface ion modification, anodization and other methods, to improve the corrosion resistance and surface hardness of "titanium" in reducing media to meet the use requirements.

Titanium valves are almost non corrosive in atmosphere, fresh water, seawater and high-temperature steam.

Titanium valves are very resistant to corrosion in alkaline media.

Titanium valves have very strong chloride ion resistance and excellent chloride ion corrosion resistance.

Titanium valves have good corrosion resistance in aqua regia, sodium hypochlorite, chlorine water, wet oxygen and other media.

The corrosion resistance of titanium valve in organic acid depends on the reducibility or oxidation of acid.

The corrosion resistance of titanium valve in reducing acid depends on whether the medium has corrosion inhibitor.

Titanium valves are light in weight (with a specific gravity of 4.507) and high in mechanical strength, and are widely used in aerospace, marine shipping, and military industries.

Due to its high cost performance, titanium valves can resist the corrosion of a variety of corrosive media. In the civil corrosion resistant industrial transmission pipeline, it can solve the corrosion problem that stainless copper, copper or aluminum valves are difficult to solve. It has the advantages of safety, reliability and long service life. It is widely used in chlor alkali industry, soda ash industry, pharmaceutical industry, chemical fertilizer industry, fine chemical industry, textile fiber synthesis and dyeing industry, basic organic acid and inorganic salt production, nitric acid industry, etc.