Time：2011年04月13日 人气： 来源：本站原创
For the same pump, when the impeller diameter is constant, change the speed ratio of its performance can be the following law of conversion.
Where: Q1, H1, Pa1 - that when the flow speed n1, head, shaft power;
Q2, H2, Pa2 - that when the flow speed n2, head, shaft power.
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