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A liquid band vacuum pump is easy to operate and can be used in several applications across various industries. A liquid band pump works with a sealant needed in its operation. This liquid could be water, oil or any various other solvent which is definitely rotated by an impeller within the casing of the pump.

As the shaft turns, a liquid band 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 chamber, the depth of access of the blades into the liquid ring decreases and improves as the impeller rotates. This creates increasing cellular quantity on the inlet slot side, creating vacuum.

On the discharge port side, the impeller cell volume decreases as the blades move further into the liquid band. This escalates the pressure until discharge takes place through the discharge slot.

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

In the case of the two-stage liquid band pump, the discharge from the Liquid-Ring Vacuum Pump china initial stage does not discharge to atmosphere. Instead, the initial stage discharges through the manifold leading to the second stage along with through a discharge slot positioned in the intermediate plate between the first- and second-stage impellers.