The anti-corrosion of the Stainless Steel ANSI Valve Body is mainly the correct selection of materials. Although the anti-corrosion information is very rich, it is still not easy to choose the right one because the problem of corrosion is very complicated. For example, sulfuric acid is very corrosive to steel when the concentration is low, and steel is produced when the concentration is high. Passivation film can prevent corrosion; hydrogen only shows high corrosiveness to steel under high temperature and high pressure. Corrosion performance is not great when chlorine gas is in dry state, and corrosion performance is strong when there is certain humidity. Many materials cannot be used. The difficulty in selecting the API Ball Valve Body material is that it is not only possible to consider the corrosion problem, but also must consider the pressure and temperature resistance, economical and reasonable, and easy to purchase. So you must use your heart.
Second liner take measures, such as the lining of lead, aluminum lining, plastic lining, lining natural rubber and various synthetic rubbers and the like. This is a saving method if the media conditions permit.
Thirdly, when the pressure and temperature are not high, the non-metal valve body material is often very effective in preventing corrosion.
In addition, the outer surface of the valve is also subject to atmospheric corrosion, and the general steel materials are protected by brushing.
