A liquid band vacuum pump is easy to operate and is utilized in several 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 other solvent which is certainly rotated by an impeller within the casing of the pump.

As the shaft turns, a liquid ring is established by the centrifugal force produced by the rotating impeller. This drive holds the liquid ring against the inner wall structure of the pumping chamber. Because the impeller is situated eccentric to the pumping Liquid-Ring Vacuum Pump chamber, the depth of entry of the blades into the liquid ring reduces and raises as the impeller rotates. This creates increasing cellular quantity on the inlet port side, creating vacuum.

On the discharge port side, the impeller cell volume decreases as the blades move further in to the liquid ring. This increases the pressure until discharge occurs through the discharge port.

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

Regarding the two-stage liquid band pump, the discharge from the first stage will not discharge to atmosphere. Rather, the first stage discharges through the manifold resulting in the second stage as well as through a discharge interface positioned in the intermediate plate between the first- and second-stage impellers.