Abstract: There are many types of compressors and pumps used in Chinese petroleum and natural gas field. Accordingly, many standards are involved. There are large differences in quality and price among machineries manufactured according to different standards. This paper mainly makes a comparison between product standards and inspection and testing standards for turbine compressor and centrifugal pump (excluding sealless centrifugal pumps). It summarizes the structural features of these standards and proposes the suggestions for standards selection so as to achieve the goal of optimal cost-performance ratio for machinery procurement.

Key words: turbine compressor, centrifugal pump, technical standards, comparison, selection