drawings
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Could any expert give some advice on how to interpret this drawing? Is this the drawing for selecting the pump type?
X-axis: flow rate; Y-axis: head pressure. Find the intersection point as per requirements to obtain the model number
This is the performance chart of the pumps in this series at 1450 r/min; both the horizontal and vertical axes are on a logarithmic scale. It shows the flow rate, head, and operating range of the pumps within each series on a single graph. Each small flag represents the performance range of one pump, allowing for an easy assessment of the overall performance coverage of the pumps in this series. This can be used for preliminary selection, but to make an accurate choice, it is necessary to consider the actual performance curves of the individual pumps
This is the type spectrum; use it to select a model roughly, and then check whether the parameters meet the requirements based on the pump’s performance curve
It’s just about looking at the horizontal and vertical coordinates accordingly