Reciprocating pump head and flow of some relationship

From the reciprocating pump head and flow of the formula can be seen separately, head and flow is not related. Pump head depends on the needs of the pipeline and pump capacity. In the stroke, a certain number of red when the reciprocating pump flow rate for the set value. Of course, when the pressure is high, the pressure in the pump is large and the pump leaks a little more, so the flow rate will be slightly reduced.