Petrochemical pumps are mainly manufactured by international companies such as Sulzer from Switzerland, Ebara from Japan, KSB from Germany, and Flowserve (formerly Goulds) from the United States. The development of petrochemical pumps is moving towards large-scale, high-speed, and mechatronic designs. There is a growing trend toward standardized, serialized, and generalized pump products, with an emphasis on variety, performance, durability, and high reliability. Advanced technologies are being developed in areas like pump sealing, bearing systems, and specialized applications. Notably, there has been rapid progress in high-temperature, low-temperature, and cryogenic pumps, high-speed pumps, precision metering pumps, corrosion-resistant pumps, and pumps designed for viscous media or fluids containing solid particles. Shielded pump technology has also seen significant advancements.
Compared to their international counterparts, China's petrochemical pump industry still lags behind in several key areas. The design theories and methods used are relatively outdated, with many products developed through imitation or analog techniques rather than based on solid theoretical foundations or experimental data. Manufacturing equipment and processes are less advanced, resulting in lower precision and reduced production efficiency. The level of standardization and generalization of pump products remains limited, with fewer varieties and specifications available. Additionally, there are still notable gaps in terms of efficiency, quality, reliability, sealing performance, and corrosion resistance. As a result, many petrochemical pumps in China are still imported from abroad, highlighting the need for further innovation and technological improvement in the domestic industry.
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