Through comparison testing of the surface of reflowing holes of the external-mix self-suckingpump, the best design is determined.
对外混式自吸泵的回流孔面积进行对比试验，确定最佳设计方案。
2
The utility model relates to an internal mixed self-sucking pipeline pump, which belongs to the improved technical proposal of a mechanical self-suckingpump.
内混式自吸管道泵，属于机械自吸泵的改进技术方案。
3
When the auxiliary sewer line stores the waste water, the waste water can be pumped into the water storage tank through the water suction pipe by the self-suckingpump.