Because there are many pumping stations in the South-to-North Water Transfer Project, each pump station needs a certain number of axial flow pumps. Generally, the flow rate of axial flow pump is more than 10,000 cubic meters per hour, and the diameter of axial flow pump is 1-5 meters.
The Huai 'an section project uses an axial flow pump with a diameter of 4.5 meters。
On the east line, China has created the world's largest pumping station group, with 51 pumping stations. In the factory building of Huinanzhuang Station in Beijing, there are as many as eight pumps with a length of 6 meters and a height of 5 meters to give blood transfusion to Beijing.
In the middle line project, the starting point of the middle line is Danjiangkou Reservoir. The terrain is about 100 meters higher than that of Beijing, and the water can flow by gravity.
