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Topic: Re: What are the limitations of centrifugal pumps?

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The effect of running a centrifugal pump in series with a screw pump will depend on the various sizes of pumps and their flow rate as well as the viscosity of the liquid involved. In addition there is no minimum viscosity for running a centrifugal pump. The limitations depend on the flow rate and efficiency losses created by the viscosity of the liquid. You can't just identify a single number.