MULTISTAGE CENTRIFUGAL PUMP AND METHOD FOR MANUFACTURING THE MULTISTAGE CENTRIFUGAL PUMP

摘要

PROBLEM TO BE SOLVED: To accurately machine a flow passage from both directions on an upstream side and a downstream side.;SOLUTION: A casing for storing a plurality of impellers (5) is constituted of a first casing (11) and a second casing (12). A plurality of partition members constituted of an upper half-part partition plate (21) and a lower half-part partition plate (22) is provided at an inner surface of the casing. A fluid guide member constituted of an upper half-part fluid guide member (31) and a lower half-part fluid guide member (32) is provided between the partition members adjacent to each other at the inner surface of the casing.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT