... head=183m speed=2900rpm efficiency=75.5% shaft power=68kw motor power=90kw,NPSHr=5.5m, Nominal dia=275mm, ... Q=124m3/h head=158m speed=2900rpm efficiency=72.5% shaft power=73.6kw motor power=90kw,NPSHr=17m ... Q=116m3/h head=138m speed=2900rpm efficiency=72.5% shaft power=60.1kw motor power=75kw,NPSHr=15m ... =255mm, flange inlet=100mm,flange outlet=65mm Two Stage Double Suction Split Casing Centrifugal Pump