The packing seal of the water pump is an economical and practical sealing method with the advantages of simple structure, low cost and easy installation. However, it is also necessary to pay attention to its shortcomings and maintenance requirements during use to ensure its good sealing performance and service life.

The thread seal of the chemical pump is an economical and practical sealing method, but it is necessary to pay attention to the influence of various factors during the application process, and regularly inspect and maintain it to ensure its sealing effect.

Centrifugal design and performance optimization need to start from multiple aspects, including impeller design, material selection, seal design, variable frequency speed regulation technology, optimization of operating parameters and intelligent management.