Design drawings for the semi-spiral suction chamber of a centrifugal pump
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The diagram shows the design drawings for half of the spiral water absorption chamber. There is only one question: what are the dimensions R130 and R57.5 indicated by the red lines in the diagram? Also, why is there a common slanted line across sections 1 to 8? (I know it’s an axial projection diagram); why isn’t that slanted line horizontal?
There is a protrusion at the inlet of the semi-spiral water absorption chamber, and that is R57.5