Which pump should be used to transport sulfuric acid?

When transporting sulfuric acid, because sulfuric acid is a dangerous goods, a water pump with strong corrosion resistance is needed. When choosing a water pump, you need to pay attention to these two points, and you can find a suitable pump. The pumps for conveying sulfuric acid are fluoroplastic alloy centrifugal pumps, fluoroplastic magnetic pumps, corrosion-resistant self-priming pumps and other types, which can be subdivided according to flow rate and head. Many enterprises are prone to deviation in the selection of models, improper selection will bring great safety risks to future production, and work efficiency will also be reduced.

First of all, we should be familiar with the characteristics of the transport medium. Sulfuric acid as one of the strong corrosion media, sulfuric acid is an important industrial raw material with a wide range of applications. The corrosion of sulfuric acid with different concentration and temperature is quite different. For concentrated sulfuric acid with concentration above 80% and temperature less than 80 degrees, carbon steel and cast iron have better corrosion resistance, but it is not suitable for high-speed sulfuric acid and is not suitable for water pump materials. Ordinary stainless steels such as 304 and 316 are also limited in sulfuric acid medium. Pumps for conveying sulfuric acid are usually made of high silicon cast iron and high alloy stainless steel, but they are difficult to process and expensive, so they are not favored by people. Fluoroplastic alloy has good sulfuric acid resistance, and it has not been found which chemical medium can react with it in the applicable temperature range, so the use of fluorine-lined pump (F46) is a more economical choice. Applicable products are: PTFE magnetic pump, fluoroplastic lining centrifugal pump, Teflon centrifugal pump and so on.


Teflon as a lining of the new fluoroplastic series pump is the result of leading the new technology and technology. It thoroughly solves all kinds of problems encountered in conveying highly corrosive media in various fields.