The reason why the sewage pump can't pump water
- Time of issue:2021-07-27 11:34
- Views:
The reason why the sewage pump can't pump water
(Summary description)What are the reasons why the sewage pump cannot pump water? The following editor will give you an introduction.
1. Whether the use head of the fire pump exceeds the rated value. If the actual head exceeds the rated value of the fire pump, you need to replace the fire pump model with a suitable head.
2. There is no water diversion or insufficient water storage in the sewage pump body. Only when there is a certain amount of water in the pump body, can the air in the inlet pipe be sucked into the pump due to the centrifugal force generated by the rotating impeller when it is started, and mixed with the water in the pump to form an air-water mixture, and then Through the air-water separation chamber, the lighter air is separated from the water, drained from the water outlet of the pump, and the self-priming pump discharges water. If the water in the pump body is insufficient, so that the air cannot be separated from the air-water mixture, the water pump cannot be filled, and the self-priming pump will not discharge water.
3. The inlet and outlet valves are not opened, the inlet and outlet pipelines are blocked, and the impeller flow passage is blocked. The motor is running in the wrong direction, and the motor is out of phase. The suction pipe is leaking. The pump is not filled with liquid and there is air in the pump cavity. The inlet water supply is insufficient, the suction stroke is too high, and the bottom valve is leaking.
4. Whether the pipe is too thin when the fire pump is pushing out the pipe. If the pipeline is too thin, you only need to replace the fire pump pressure out pipeline.
5. Whether the medium is hot or volatile. If the medium is hot or volatile, it is necessary to reduce the suction stroke or install it by backflow.
6. Whether the suction height of the fire pump exceeds the rated range. If it is, you need to re-install the position of the fire pump so that the suction height is at a suitable position.
The above is the reason why the sewage pump cannot pump water, I hope you can understand.
- Time of issue:2021-07-27 11:34
- Views:
What are the reasons why the sewage pump cannot pump water? The following editor will give you an introduction.
1. Whether the use head of the fire pump exceeds the rated value. If the actual head exceeds the rated value of the fire pump, you need to replace the fire pump model with a suitable head.
2. There is no water diversion or insufficient water storage in the sewage pump body. Only when there is a certain amount of water in the pump body, can the air in the inlet pipe be sucked into the pump due to the centrifugal force generated by the rotating impeller when it is started, and mixed with the water in the pump to form an air-water mixture, and then Through the air-water separation chamber, the lighter air is separated from the water, drained from the water outlet of the pump, and the self-priming pump discharges water. If the water in the pump body is insufficient, so that the air cannot be separated from the air-water mixture, the water pump cannot be filled, and the self-priming pump will not discharge water.
3. The inlet and outlet valves are not opened, the inlet and outlet pipelines are blocked, and the impeller flow passage is blocked. The motor is running in the wrong direction, and the motor is out of phase. The suction pipe is leaking. The pump is not filled with liquid and there is air in the pump cavity. The inlet water supply is insufficient, the suction stroke is too high, and the bottom valve is leaking.
4. Whether the pipe is too thin when the fire pump is pushing out the pipe. If the pipeline is too thin, you only need to replace the fire pump pressure out pipeline.
5. Whether the medium is hot or volatile. If the medium is hot or volatile, it is necessary to reduce the suction stroke or install it by backflow.
6. Whether the suction height of the fire pump exceeds the rated range. If it is, you need to re-install the position of the fire pump so that the suction height is at a suitable position.
The above is the reason why the sewage pump cannot pump water, I hope you can understand.
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