Liquid-Ring Vacuum Pump

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

As the shaft turns, a liquid band 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 Liquid-Ring Vacuum Pump situated eccentric to the pumping chamber, the depth of access of the blades into the liquid ring decreases and improves as the impeller rotates. This creates increasing cellular volume on the inlet slot side, creating vacuum.

On the discharge slot 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 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 band pump, the discharge from the 1st stage will not discharge to atmosphere. Instead, the first stage discharges through the manifold resulting in the second stage along with through a discharge slot positioned in the intermediate plate between your first- and second-stage impellers.