When operating a centrifugal pump, the following points should be noted:
① Do not operate without water, do not adjust the suction capacity to reduce the displacement, and do not operate at low flow rates;
② Monitor the operation process to completely prevent leakage of the packing box, and use new packing when replacing the packing box;
③ Ensure that the mechanical seal has sufficient flushing water flow, and excessive water flow is prohibited for water-cooled bearings;
④ Do not use too much lubricant;
⑤ Check according to the recommended cycle. Establish operation records, including operating hours, adjustment and replacement of fillers, addition of lubricants, and other maintenance measures and time. The suction and discharge pressure, flow rate, input power, temperature and vibration of the washing solution and bearings of the centrifugal pump should be measured and recorded regularly.
⑥ The main engine of a centrifugal pump relies on atmospheric pressure to pump water from lower areas to higher areas, and atmospheric pressure can only support a maximum water column of about 10.3 meters, so the main engine of the centrifugal pump cannot work when it is 12 meters away from the water surface.
