The seawater desalination high pressure pump is one key equipment in seawater desalination systems. In order to develop a series of products of high efficiency reverse osmosis seawater desalination high pressure pump and realize its industrialization, a large number of work, such as design of both overall structure and axial thrust balance device, selection of both bearing lubrication and wear-resistant materials and so on, was done in the pump development, trial production and testing based on latest techniques developed in national scientific and technological support projects by combining the new development trend of manufacturing technology in desalination high-pressure pumps in the world and by considering actual requirements of pump end-users on the pump performance. As a result, three series of products of high pressure pumps are developed for seawater desalination systems with 5 000, 10 000 and 15 000 tonnes daily output, respectively.The problems in existing products of the high pressure pump and the situation of a less varied variety in the products are turned over. Based on production, experiment and user application, it is shown that the performance of these series of products has reached the same level of the similar products in the world.
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