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 needed in its operation. This liquid can 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 ring is established by the centrifugal force generated by the Liquid-Ring Vacuum Pump china rotating impeller. This pressure holds the liquid band 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 reduces and raises 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 increases the pressure until discharge takes place through the discharge interface.

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

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