Does a fixed displacement pump create pressure?
Does a fixed displacement pump create pressure? Unlike centrifugal pumps, where the impeller can spin without actually moving any fluid, positive displacement pumps directly couple the motor to a fixed volume no matter what the pressure is in the discharge line. As long as the motor has enough power to force that fluid out, it will happen at a constant rate. Does a pump produce pressure or flow? A pump produces liquid movement or flow: it does not generate pressure. It produces the flow necessary for the development of pressure which is a function of resistance to fluid flow in...