Causes and solutions of water pump failure

Category: Water pump knowledge

2024-05-25

1. First, check whether the valve in the inlet area of the water pump is opened. If not, open it in time. If there is still no water after opening, check whether there is any foreign matter blocking the valve. This can be solved as long as it is cleaned up.

2, the impeller rotation is not balanced, the coupling shaft is not tight enough, resulting in parts loosening and cracking, such as the occurrence of large vibration of the pump. These problems can be solved by adjustment, reinforcement repair or replacement.

3. The nut is not tightened during installation, resulting in water leakage and air leakage. This is a good solution. If there is a slight leakage, plug it with cement and asphalt oil at the leakage place. If the leakage is serious, it must be replaced or reinstalled.

4. Because the packing is pressed too hard, cold water cannot enter the packing, or the table of the shaft has been damaged. In this case, all you need to do is loosen the packing and clean up the blocked pipe.

5. The water in the pump body is not full or there is air in the inlet pipe. If this is the case, you can fill up the water and pump out the air from the pipe.

6. Check whether the water pump is reversed. When the water pump is reversed, it cannot be filled with water. In this case, it is only necessary to adjust the water pump to rotate forward. If there is frequency converter control, try it manually and automatically.

7. Check whether the outlet pipeline is blocked.

8. If the main valve is closed and the pressure still cannot go up, the water pump should be disassembled in this case, and the impeller in the pump body should be checked for falling off or damage and replaced.

9. If it is not caused by the above reasons, check again to see if the pump reaches the designed flow and head.

How to maintain the water pump

1. When the water pump leaks, do not fill the inlet with dry soil, because these dry soil will damage the impeller and bearings, and the leakage must be repaired.

2, to be found in the use of vibration, to immediately stop to check the specific reasons, if the vibration is still used, it will also cause damage.

The pump cannot continue to work in the event of any accident, even if it is a minor accident. If the packing of the water pump is worn out, it must be filled up in time. If it continues to be used, it will cause air leakage. This will affect the loss of the motor, directly damage the impeller.

4. After the water pump is used up, it should be maintained. You can drain the water from the pump body and take down the water pipe to clean it to prevent blockage. Take off the tape on the pump, wash it and dry it to keep it dry.

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