What determines the minimum flow rate of a centrifugal pump?
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What determines the minimum flow rate of a centrifugal pump?
To ensure the safe start-up and proper operation of the pump, a minimum discharge flow rate is required; this is known as the minimum flow rate for centrifugal pumps. When the pump’s operating flow rate is 30% below its rated flow rate, it is necessary to establish a minimum flow line that allows the pump to operate properly at this lower flow rate (that is, a return line is added to the outlet pipeline of the centrifugal pump), which is known as the minimum flow line.
To ensure the proper use and normal operation of the pump, its manufacturers will indicate on the data sheets the minimum continuous flow rate required for operation, thereby advising or guiding users in making the right selection or in using the pump correctly. In accordance with the provisions of the API standards
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