Centrifugal pump after maintenance test should pay attention to the following points: 1, according to the test program or operating procedures for testing, pre-test the pump body preheating, pump body temperature reaches the operating temperature, hand crank should be flexible. 2, the pump running at full capacity, check the following operating conditions: (1) motor power, voltage and current are normal; (2) the unit's sound is normal; (3) to measure the pump inlet and outlet pressure and flow; Check if the mechanical seal leaks; (5) Check whether the temperature of the rolling bearing is normal; (6) Check the vibrations of the motor and the pump body with the vibrometer. The above inspection items to make a record. 3, after a trial run 6 ~ 10min, if not found any fault and can reach the parameter index, you can stop.
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