A liquid ring vacuum pump is easy to operate and is utilized in a number of applications across various industries. A liquid ring pump works together with a sealant necessary in its procedure. This liquid can be water, oil or any additional solvent which is rotated by an impeller within the casing of the pump.

As the shaft turns, a liquid band is created by the centrifugal force produced by the rotating impeller. This pressure holds the liquid ring against the inner wall structure of the pumping chamber. Because the impeller is Liquid-Ring Vacuum Pump china situated eccentric to the pumping chamber, the depth of entry of the blades into the liquid ring decreases and increases as the impeller rotates. This creates increasing cell quantity on the inlet interface side, creating vacuum.

On the discharge interface side, the impeller cell volume decreases as the blades move further in to the liquid ring. This escalates the pressure until discharge takes place through the discharge port.

A continuous flow of fresh sealing liquid comes to the pump via the sealing-liquid inlet.

In the case of the two-stage liquid band pump, the discharge from the 1st stage does not discharge to atmosphere. Instead, the 1st stage discharges through the manifold leading to the second stage as well as through a discharge slot situated in the intermediate plate between the first- and second-stage impellers.