A liquid band vacuum pump is easy to operate and is used in several applications across various industries. A liquid ring pump works together with a sealant needed in its operation. This liquid can be water, oil or any various other solvent which is usually 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 drive holds the liquid ring against the inner wall of the pumping chamber. Since the impeller is situated eccentric to the pumping chamber, the depth of access of the blades in to the liquid ring reduces and improves as the impeller Liquid-Ring Vacuum Pump china rotates. This creates increasing cellular volume on the inlet slot side, creating vacuum.

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

A continuing 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 initial stage will not discharge to atmosphere. Instead, the initial stage discharges through the manifold resulting in the second stage in addition to through a discharge port positioned in the intermediate plate between your first- and second-stage impellers.