A liquid band vacuum pump is simple to operate and is used in several applications across various industries. A liquid ring pump works with a sealant required in its operation. This liquid could be water, essential oil or any various other solvent which is definitely rotated by an Liquid-Ring Vacuum Pump china impeller within the casing of the pump.

As the shaft turns, a liquid ring is created by the centrifugal force generated by the rotating impeller. This drive holds the liquid band against the inner wall structure of the pumping chamber. Because the impeller is situated eccentric to the pumping chamber, the depth of access of the blades in to the liquid ring reduces and raises as the impeller rotates. This creates increasing cellular volume on the inlet port 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 slot.

A continuous flow of new 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 will not discharge to atmosphere. Rather, the first stage discharges through the manifold resulting in the second stage in addition to through a discharge port positioned in the intermediate plate between the first- and second-stage impellers.