The flow of the reciprocating pump is independent of the pressure head, which is related to the size of the pump cylinder, piston stroke and reciprocating times. The theoretical flow of the single moving pump is QT=ASN the actual flow rate of the reciprocating pump is smaller than the theoretical flow, and decreases with the increase of the pressure head, which is caused by the leakage. The pressure head of the reciprocating pump has nothing to do with the flow of the pump and the geometry of the pump, but depends on the mechanical strength of the pump and the power of the original motive.
