Liquid-Ring Vacuum Pump

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

As the shaft turns, a liquid ring is established by the centrifugal force generated by the rotating impeller. This pressure holds the liquid ring against the inner wall 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 boosts as the impeller 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 into the liquid ring. This escalates the pressure until discharge takes place Liquid-Ring Vacuum Pump china through the discharge interface.

A continuing flow of clean sealing liquid comes to the pump via the sealing-liquid inlet.

Regarding the two-stage liquid ring pump, the discharge from the 1st stage does not discharge to atmosphere. Rather, the initial stage discharges through the manifold leading to the second stage and also through a discharge port situated in the intermediate plate between your first- and second-stage impellers.