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

As the shaft turns, a liquid ring is established by the centrifugal force produced by the rotating impeller. This push holds the liquid ring 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 decreases and increases as the impeller rotates. This creates increasing cellular quantity on the inlet interface side, Liquid-Ring Vacuum Pump creating vacuum.

On the discharge interface side, the impeller cell volume decreases as the blades move further in to the liquid ring. This increases the pressure until discharge occurs through the discharge port.

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

Regarding the two-stage liquid band pump, the discharge from the initial stage does not discharge to atmosphere. Instead, the first stage discharges through the manifold leading to the second stage along with through a discharge interface located in the intermediate plate between your first- and second-stage impellers.