Marine Pump Pump is a kind of hydraulic machinery widely used on ships. It is driven by a prime mover (generally an electric motor) and converts its mechanical energy into the pressure energy, potential energy and kinetic energy of the liquid.The liquids pumped on ships are mainly water and oil. In order to pump seawater, fresh water, fuel oil, lubricating oil and other liquids on ships, a certain number and different types of pumps are needed.Generally, it is necessary to install bilge pumps, fuel oil and lubricating oil transfer pumps, boiler feed pumps, cooling pumps, ballast pumps, sanitary pumps and other major oil pumps and pumps in the engine room.