International petrochemical pump manufacturers include well-known companies such as Switzerland's Sulzer, Germany's KSB, and the United States' Flowserve (formerly known as Gardner Denver). These companies have established themselves as leaders in the industry due to their advanced production technologies, wide range of specifications, and high levels of standardization. The development trend of petrochemical pumps is moving towards larger-scale operations, higher speeds, and greater integration of mechanical and electrical systems. Additionally, there is a growing focus on complete pump solutions that meet the complex demands of modern industrial applications.
Key areas of technological advancement include high-temperature pumps, cryogenic and low-temperature pumps, high-speed pumps, precision metering pumps, corrosion-resistant pumps, and pumps designed for viscous media or fluids containing solid particles. Shielded pumps, which are widely used in hazardous environments, have also seen significant progress in design and performance.
In China, more than 100 domestic manufacturers produce over 100 series and 2,000 varieties of petrochemical pumps. Despite this extensive production capacity, the technology and equipment used still lag behind those of international counterparts. Domestically, design theories and methods are relatively outdated, with many products developed through imitation and analog approaches rather than based on solid theoretical foundations and experimental data.
The processing equipment and manufacturing techniques in China are not as advanced as those abroad, leading to lower precision and reduced production efficiency. Furthermore, the level of serialization and generalization of pump products is limited, resulting in fewer options and less flexibility in meeting specific industrial needs.
Pump efficiency, quality, reliability, sealing performance, and corrosion resistance still show notable gaps compared to foreign products, which is why many Chinese companies continue to rely on imported pumps for critical applications. To bridge this gap, domestic manufacturers need to invest more in research and development, adopt modern design methodologies, and improve both production standards and technical capabilities.
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