Question: Two 32-inch pumps from Fig. 11.7a are to be used in series at 1170 rpm to lift water through 500 ft of vertical cast-iron pipe.

Two 32-inch pumps from Fig. 11.7a are to be used in series at 1170 rpm to lift water through 500 ft of vertical cast-iron pipe. What should the pipe diameter be for most efficient operation? Neglect minor losses.

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For water at 20C take 194 slugft3 and 209E5 slugft s For cast iron ... View full answer

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