However, when the pump is at rest-0% full load speed-the full load torque is never also 0%. The torque-speed curve is similar for all centrifugal pumps due to simple math: the pump torque varies as the square of its speed. A pump’s torque-speed curve is produced by plotting the percentage of full load torque (FLT) vertically against the percentage of full load speed (FLS) plotted horizontally. Speed Curve for Centrifugal PumpsĪ pump’s torque-speed curve is used to determine the appropriate motor to match with it. The centrifugal pump suppliers at PumpWorks will guide you through the pump motor selection process. If a motor lacks enough torque to operate a pump, the pump may not start or may only operate at a reduced speed. The motor used to power a centrifugal pump needs to be able to produce enough torque to start the pump and bring it to an optimal operating speed. Predict-Plus – Remote Pump Monitoring System.ANSI/ASME B73.3 Sealless Horizontal Process Pump
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