Why the flow of water ring vacuum unit cannot reach

What is the reason why the water ring vacuum unit cannot reach the flow rate in use? Next:

1. If the flow of the used water ring vacuum unit cannot be reached, it is likely that the impeller and pump body are worn and corroded, or the pump body is blocked and the pipeline is blocked, the elimination method is to confirm whether the pump body and pipeline are blocked, Then check whether the impeller and pump body are worn and corroded. It is more appropriate to replace them with new accessories or select corrosion-resistant stainless steel submersible pump products or self priming pump products installed on the ground without soaking in water. It is also possible that the flow of the water ring vacuum unit cannot be reached due to the loosening of the impeller nut.

2. The reason why the flow of the water ring vacuum unit cannot be reached may also be due to the wrong model selection. Because the required lift under the actual working condition is high, the pump lift is low and cannot meet the required requirements. For example, a user has purchased a water ring vacuum unit of our company, and the pump flow is 150m3/h, and the lift is 20m. Because the user specified the need for this model when purchasing, The result is that the vertical height of the outlet pipe of the on-site submersible pump is about 15 meters, and then the horizontal distance is about 1000 meters. After use, the user said that the flow of the submersible pump can not reach the actual flow, which is only about 60 m3/h. From the above data, it can be seen that the pump head is too low, which can be sure that the flow of the final outlet can not reach the design standard of the submersible pump, The horizontal distance of 1000m shall be calculated according to the lift of 20m at least, so the lift of sewage pump must be 40-50m in this working condition to reach the rated flow parameters of water ring vacuum unit.

3. If the newly installed water ring vacuum unit fails to reach the flow of the submersible pump, first confirm whether the power supply of the submersible pump is normal, and whether the reverse connection of the water ring vacuum unit causes the flow of the submersible pump to fail to reach the flow, which needs to be eliminated one by one.