| Customization: | Available |
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| Oil or Not: | Oil Free |
| Structure: | Rotary Vacuum Pump |
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Liquid-ring vacuum pump
A liquid ring vacuum pump is easy to operate and is used in several applications across various industries. A liquid ring pump works with a sealant required in its operation. This liquid can be water, oil or any other solvent which is rotated by an impeller within the casing of the pump.
As the shaft turns, a liquid ring is created by the centrifugal force generated by the rotating impeller. This force holds the liquid ring against the inner wall of the pumping chamber. Since the impeller is located eccentric to the pumping chamber, the depth of entry of the blades into the liquid ring decreases and increases as the impeller rotates. This creates increasing cell volume on the inlet port side, creating vacuum.
On the discharge port side, the impeller cell volume decreases as the blades move further into the liquid ring. This increases the pressure until discharge takes place through the discharge port.
A continuous flow of fresh sealing liquid is supplied to the pump via the sealing-liquid inlet.
In the case of the two-stage liquid ring pump, the discharge from the first stage does not discharge to atmosphere. Instead, the first stage discharges through the manifold leading to the second stage as well as through a discharge port located in the intermediate plate between the first- and second-stage impellers.
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