'PUMP ROTOR ROTATING SHAFT, FLOW DIRECTION DEVICE USED TO DIRECT MATERIAL IN CONNECTION WITH A MOVING ADJACENT ROTOR, PUMP COMPARTMENT, PULSE OF A MODOO AODOOD PUMP METHOD THE MIXING AND AGITATION OF A SLUDGE MATERIAL, A ROTOR REPLACEMENT METHOD IN A PUMP UNIT AND AN ASSEMBLY METHOD OF A PUMP UNIT '

摘要

A pump assembly and components therefor including an impeller which has flow inducer elements on an inner surface of a front shroud thereof, a flow directing device or strainer having passageways for delivering material to the impeller and at least one flow circulating passageway and a pump casing having an intake section with flow distribution vanes in the region of a feed opening adjacent the intake section.