Liquid-Ring Vacuum Pump

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

As the shaft turns, a liquid band is established by the centrifugal force generated by the rotating impeller. This push holds the liquid band against the inner wall structure of the pumping chamber. Because the impeller is located eccentric to the pumping chamber, the depth of entry of the blades in to 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 interface side, the impeller cell volume decreases as the blades move further in to the liquid band. This escalates the pressure until discharge occurs through the discharge interface.

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

In the case of the two-stage liquid ring pump, the discharge from the first stage will not discharge to atmosphere. Rather, the initial stage discharges through the manifold resulting in the second stage as well as through a discharge slot located in the intermediate plate Liquid-Ring Vacuum Pump between your first- and second-stage impellers.


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