... uses a velocity-compounded stage impeller.Nozzle pitch diameter is 800mm.Its speed regulating system can use ... method. 8.Operation mode:Continuous,intermittent or spare. 9.Arrangement mode:Single-deck or double-deck,and ... 0.15 19.6 B0.45-1.08/0.2 450 3000 1.08 300 0.2 19.5 ... B0.45-0.9/0.2 450 3000 0.9 300 ... 0.2 23.46 B0.5-1.1/0.15 500 3000 1.1 330 ...