Vortex pumps are based on the principle of creating a vortex flow with a recessed impeller that is positioned away from the path of the liquid. It creates circular churning motion around an axis that creates suction for the fluid to flow into the volute and out through discharge. Vortex motion may or may not be created by pressure differences of a fluid-solid mixture. Vortex pumps are used to pump drink water, fresh water and sea water for wash and sanitary on the ships. As an experienced China screw pumps manufacturer, Hoffwell Pump will provice a good slution with good quality pump. Do you want to learn more information? Contact me now!