A centrifugal pump is to be used to extract water from a, Ask an Expert

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A centrifugal pump is to be used to extract water from a condenser in which the vaccum is 640 mm of mercury. At rated discharge, the net positive suction head must be at least 3m above the cavitation vapor pressure of 710 mm mercury vacuum. If losses in the suction pipe account for a head of 1.5m, what must be the least height of the liquid level in the condenser above the pump inlet?

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