1.Must meet the requirements of using the flow and head, which requires the pump operating time point (intersection curve and performance characteristics of the pump device) to keep running at high efficiency range, so that power is both easy to damaged parts.
2.Pumps are selected for both small size, light weight, low cost, but also has a good characteristic and high efficiency.
3.Has a good anti cavitation performance, this can reduce the pumping station at the depth of excavation, not to pump cavitation, smooth operation and long life.
4.According to the selected pump pump station, the project investment is low, the operation cost is low.
