| 摘要 |
Modular-structure regenerative pump in which the sets of steps comprise a intermediate suction part (6), an intermediate delivery part (7), an impeller (10) and a casing (8, 9). In order to simplify construction, the intermediate suction and delivery parts (6, 7) are sheet-metal components and arranged in an annular casing (8, 9). The intermediate suction and delivery parts (6, 7) are preferably centred from the shaft.
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