Description: Representation of the pump head height as a function of the flow rate; Name: Plant (NPSH) characteristic curve
Description: representation of the pump head plotted against the flow rate; Name: installation NPSH curve
Description: average speed given by the stroke length multiplied with the number of complete pumping cycles of the piston, plunger or piston attached to the diaphragm per minute (stroke per minute or pump crank speed); Name: piston velocity