Pumps that increase flow rate without increasing outlet pressure
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Pumps that increase flow rate without increasing outlet pressure
1. For positive displacement pumps, the outlet pressure = pipeline flow resistance + downstream pressure. 2. In the case of centrifugal pumps, the outlet pressure is related to the pump’s discharge volume, which in turn is influenced by the characteristics of the pipeline; as the flow rate increases, the outlet pressure decreases. Unless the piping system is changed, I really can’t think of a pump whose flow rate increases without the pump outlet pressure remaining unchanged.