How to Start a Self Priming Centrifugal Pump Correctly?
2025-06-03 15:37:41
Read:
Share:
As the name suggests, a self-priming centrifugal pump is a centrifugal pump with self-priming function. It can operate without water supply and can be widely used in many industries. However, to ensure that the self-priming pump can operate safely and effectively, it is necessary to carry out comprehensive preparation and inspection before use. In order to help new and old users master the operating points of the self-priming pump, some correct steps for starting the self-priming delivery pump are shown below.
1. Check the power supply and motor: First, make sure that the power cord is intact so that the voltage and frequency are within acceptable ranges. It is also necessary to confirm that the motor of the self-priming centrifugal pump is correctly wired, the insulation resistance is appropriate, and the bearings are well lubricated.
2. Inspect the pump body and its parts: Before starting, the pump body needs to be kept clean and free of debris, and it is also necessary to check for cracks, deformation or other defects. At the same time, check the inlet and outlet valves to ensure that they are leak-free, flexible, and undamaged. In order for the pump to run smoothly, it is also necessary to check whether the body is stuck and the pump shaft rotates flexibly.
3. Examine the sealing device: The sealing device is one of the important components to ensure the normal operation of the self-priming centrifugal pump. Before starting, make sure that its sealing surface is flat and intact, and the sealing device is intact. In addition, some looseness needs to be dealt with and the seals must be installed correctly.
4. Check the cooling system: For centrifugal pumps that need cooling, ensure that the cooling water pipeline is unobstructed, the cooling water flow is normal, and the cooling system is intact. To prevent damage to the pump body, check whether the cooling water temperature is too high.
5. Inspect the installation environment: Determine whether the installation environment of the self-priming pump meets the specifications, including whether the foundation is flat and solid, whether there are obstacles nearby, and whether the temperature and humidity of the installation are appropriate.
6. Perform no-load test run: First, the air inlet and outlet valves should be closed, the motor should be turned on, and the motor should be checked to see if it is running normally and whether there is any abnormal noise. Subsequently, open the inlet valve and check whether the pump body is leaking.
7. Long-term testing: During the machine test, it is necessary to ensure that the temperature, flow, pressure and other parameters of the pump remain unchanged. At the same time, ensure that the bearing lubrication is normal and the motor temperature is not too high. If the long-term test runs normally, it can be considered that the preparation and test work before the self-priming centrifugal pump is turned on has been completed.
