... Efficiency=77% shaft power=52.3kw motor power=75kw NPSHr=5.8m , Nominal dia of impeller=254mm , Flange Inlet=100mm, Flange ... Efficiency=75% shaft power=41.5kw motor power=55kw NPSHr=5.7m , Nominal dia of impeller=236mm , Flange Inlet=100mm, Flange ... Efficiency=73% shaft power=34.6kw motor power=45kw NPSHr=5.3m , Nominal dia of impeller=219mm , Flange Inlet=100mm, Flange Outlet ...