A Liquid-Ring Vacuum Pump china liquid band vacuum pump is easy to operate and is used in several applications across various industries. A liquid ring pump works with a sealant required in its procedure. This liquid can be water, essential oil or any other solvent which is certainly rotated by an impeller within the casing of the pump.

As the shaft turns, a liquid ring is created by the centrifugal force generated by the rotating impeller. This force holds the liquid band against the inner wall of the pumping chamber. Because the impeller is situated eccentric to the pumping chamber, the depth of entry of the blades into the liquid ring reduces and raises as the impeller rotates. This creates increasing cell volume on the inlet interface side, creating vacuum.

On the discharge slot side, the impeller cell volume decreases as the blades move further into the liquid ring. This escalates the pressure until discharge takes place 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. Instead, the first 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.