A liquid band vacuum pump is easy to operate and is utilized 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 various other solvent which is certainly Liquid-Ring Vacuum Pump china 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 drive holds the liquid band against the inner wall structure of the pumping chamber. Because the impeller is located 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 interface side, creating vacuum.
On the discharge interface side, the impeller cell volume decreases as the blades move further into the liquid ring. This escalates the pressure until discharge occurs through the discharge slot.
A continuing flow of fresh sealing liquid is supplied 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 in addition to through a discharge interface positioned in the intermediate plate between the first- and second-stage impellers.