Liquid-Ring Vacuum Pump

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

As the shaft turns, a liquid band is created by the centrifugal force generated by the rotating impeller. This pressure 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 Liquid-Ring Vacuum Pump china creates increasing cell quantity 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 increases the pressure until discharge occurs through the discharge interface.

A continuous flow of refreshing 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 will not discharge to atmosphere. Instead, the 1st stage discharges through the manifold leading to the second stage along with through a discharge slot located in the intermediate plate between your first- and second-stage impellers.