Multistage centrifugal pump for conveying a fluid

A multistage centrifugal pump for conveying a fluid, comprising:

• a pump housing with an inlet and an outlet for the fluid;
• a first stage impeller and a second stage impeller configured to convey the fluid from the inlet to the outlet;
• and
• a shaft configured to rotate each impeller about an axial direction, each impeller being a double suction impeller, having a first suction side, a second suction side to receive the fluid and a discharge side to discharge the fluid, the discharge side of the first stage impeller comprising two separate exits, the two separate exits being a first exit to discharge the fluid into a first crossover line and a second exit to discharge the fluid into a second crossover line, the first crossover line in fluid communication with the first suction side of the second stage impeller, and the second crossover line in fluid communication with the second suction side of the second stage impeller.