Centrifugal pump with outlet on final stage - has additional outlet on intermediate stage, that allows alternative pumping conditions

摘要

The multi-stage centrifugal pump (10), with an inlet (13) and with an outlet (14) on the high pressure side of the final stage. It has at least three stages (11). At least one of the intermediate stages also has a high pressure side outlet (17) that serves as the pump outlet when a sliding valve (15) closes off the final stage outlet (14). USE/ADVANTAGE - Multistage centrifugal. Pump cana be suited to varying operational conditions without altering the pump speed.