Liquid-Ring Vacuum Pump

A liquid band vacuum pump is simple to operate and is used in a number of applications across various industries. A liquid ring pump works with a sealant necessary in its procedure. This liquid could be water, essential oil or any additional solvent which is certainly 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 band against the inner wall of the pumping chamber. Since the impeller is located 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 interface side, creating vacuum.

On the Liquid-Ring Vacuum Pump china discharge interface side, the impeller cell volume decreases as the blades move further in to the liquid band. This escalates the pressure until discharge takes place through the discharge port.

A continuous flow of new sealing liquid is supplied 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 1st stage discharges through the manifold resulting in the second stage along with through a discharge port situated in the intermediate plate between the first- and second-stage impellers.