Correctly select submersible pump model

First, the use of submersible pump performance specifications table pump type
Water pump factory in the product catalog are provided in this form, the table of each model has three rows of data performance, which line is it? The general design flow and the design head should be consistent with the values ​​in the middle row of the performance table, or are close to each other, and must fall within the upper and lower rows because the range is the high efficiency area of ​​the pump operation, This model of the pump that is in line with the actual needs of the pump was selected.
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Second, the use of submersible pump selection table pump type
According to the design of the design of the head and the design flow, in the selection table, the horizontal head to find out with the design of the head or close to the head of the value; and then in the vertical head to find the design flow is consistent or close to the flow value , Vertical and horizontal intersect in the small box, which marked the pump model, the initial selection of multi-stage pump. But sometimes there are two types of pumps are to meet the design requirements, this time, the two pumps can be compared for the program, the technical and economic analysis, and then select one of the appropriate pump. This method of selecting the pump is relatively simple and fast.
Third, the use of submersible pump performance integrated spectrum pump selection
The working area of ​​centrifugal pump, axial flow pump, chemical pump and mixed flow pump is fully drawn on the same picture, which constitutes the comprehensive spectrum of agricultural water pump series. The drawing is complicated, but it is more convenient to use. Design flow and design of the head, in the spectrum, the first in the ordinate to the design of the head to find out in line with the requirements of the head, and the flow of several pumps, and then in the abscissa to design flow to determine which kind of choice Water pump. If the design flow is large, single pump failed to meet the requirements, may consider multi-machine operation, but should pay attention to try to use the same type of pump, in order to facilitate the construction installation, management and maintenance.