There could be many reasons why a horizontal double-suction centrifugal pump fails to draw water. The following are some common causes summarized by the after-sales technicians of Zoomlian Pump Industry, a manufacturer of double-suction centrifugal pumps. We hope this will be helpful to you.
Power supply issues for the pump: If the pump does not have sufficient power supply, it may not operate normally.
1.Blockage at the pump's suction inlet: If the suction inlet of the pump is blocked, water will not be able to enter the pump, resulting in no water output from the pump.
2.Blockage at the pump's outlet: If the outlet of the pump is blocked, water will not be able to flow out of the pump, resulting in no water output from the pump.
3.Bearing failure of the pump: If the bearings of the pump fail, the pump will not operate normally, resulting in no water output from the pump.
4.Motor failure of the pump: If the motor of the pump fails, the pump will not operate normally, resulting in no water output from the pump.
5.Pipe blockage: If the pipes are blocked, water will not be able to flow into or out of the pump, resulting in no water output from the pump.
6.Internal damage to the pump: If there is a fault inside the pump, such as damage to the impeller or pump casing, the pump will not operate normally, resulting in no water output from the pump.
7.Controller failure: If the controller fails, the pump will not operate normally, resulting in no water output from the pump.
8.Low water level: If the water level is too low, the pump may not be able to draw water normally, resulting in no water output from the pump.
9.Circuit failure: If there is a circuit failure, the pump will not operate normally, resulting in no water output from the pump.
If you are unsure of the cause of your double-suction centrifugal pump not outputting water, it is recommended to check all the possible causes mentioned above. If the fault cannot be eliminated, it is suggested to seek professional diagnosis and repair from the pump manufacturer.