They can be easily set up，examined and repaired without disassembling the pipeline system. The above works can befinished by discharging the bolts combiningthe pump oasings and motors and taking out alI the rotor units. Sedes-wound or shunt-wound werking modeis selective to meet requirements of Head or Flux. Users can install pumps vertically or horizontally under different arrangement of pipelines. 1 Suction press re≤1.0MPa and maximum of the working pressure≤1.6MPa：intake pressure plus head is not over 1.6MPa, If the needed pressure gained through static pressure test iS above 1.6MPa the client must give us some relevant information so that we can adopt di仟erent materials to meet the requirement. 2 Relative humidity required should be below 95％ and the environmentaI temperature required should be below 40℃. 3 Granularity of solid granulesis below 0.2mm and content ofthem should be below 0.1％of total volume.