Quick reference table for pipe diameter, flow rate, and velocity
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Based on the Q-H (flow rate-head) curve, which is the most important curve in the performance curve of a centrifugal pump, under normal operating conditions (except in cases of cavitation), an increase in outlet pressure or resistance inevitably leads to a decrease in flow rate, and vice versa. There is a certain relationship between the diameter of a centrifugal pump and its flow rate; generally, when the pipe diameter remains constant, lower flow rates result in less head loss, while higher flow rates lead to greater head loss. The general relationship between flow rate and pipeline is shown in the table below:
I would like to ask: under what outlet pressure is this flow rate?
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