A liquid ring vacuum pump is simple to operate and can be used in a number of applications across various industries. A liquid ring pump works with a sealant needed in its procedure. This liquid could be water, oil or any other solvent which is 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 power holds the liquid ring against the inner wall of the pumping chamber. Because the impeller is located eccentric to the pumping Liquid-Ring Vacuum Pump china chamber, the depth of access of the blades in to the liquid ring reduces and boosts as the impeller rotates. This creates increasing cell volume on the inlet slot side, creating vacuum.

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

A continuous flow of clean 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 1st stage does not discharge to atmosphere. Rather, the 1st stage discharges through the manifold resulting in the second stage in addition to through a discharge interface situated in the intermediate plate between your first- and second-stage impellers.