A WATER PUMP IS A MACHINE THAT TRANSPORTS LIQUID OR PRESSURIZES LIQUID. IT TRANSFERS THE MECHANICAL ENERGY OF THE PRIME MOVER OR OTHER EXTERNAL ENERGY TO THE LIQUID TO INCREASE THE ENERGY OF THE LIQUID. IT IS MAINLY USED TO TRANSPORT LIQUIDS INCLUDING WATER, OIL, ACID AND ALKALI LIQUIDS, EMULSIONS, SUSPOEMULSIONS AND LIQUID METALS.