A four-stage centrifugal pump has four identical impellers, keyed to the same shaft. The shaft is running at 400 r.p.m. and the total manometric head developed by the multistage pump is 40m. The...

A four-stage centrifugal pump has four identical impellers, keyed to the same shaft. The shaftis running at 400 r.p.m. and the total manometric head developed by the multistage pump is 40m. The discharge through the pump is 0.2 m*3/s. The vanes of each impeller are having outlet angle as 45°. If the width and diameter of each impeller at outlet is 5cm and 60 cm respectively, Find the manometric efficiency.


Extracted text: A four-stage centrifugal pump has four identical impellers, keyed to the same shaft. The shaft is running at 400 r.p.m. and the total manometric head developed by the multistage pump is 40m. The discharge through the pump is 0.2 m^3/s. The vanes of each impeller are having outlet angle as 45°. If the width and diameter of each impeller at outlet is 5cm and 60 cm respectively, Find the manometric efficiency.