The two most important components in producing vacuum in liquid ring vacuum pumps are the sealing liquid and the impeller. The most commonly used sealing liquid is water. The impeller is eccentric to the centerline of the vacuum pump's casing, positioned between two end plates. The rotational movement of the impeller creates centrifugal force, creating a small space for gas capture, forming a gap space where the liquid forms a ring. Due to the eccentric placement of the impeller, the space enlarges, allowing process gas to be drawn in through the suction port. As the impeller continues to rotate, the space size reduces, compressing the gas, which is then discharged along with residual water through the discharge port, as the process of intake and exhaust continues with the flow in and out of the cooling liquid.