With the rapid development of urban planning and construction, water-ring vacuum pumps are now widely used in various construction projects, and their numerous advantages have been widely recognised. To ensure their optimal use, let us now take a look at the protective measures against cavitation in water-ring vacuum pumps.

As water-ring vacuum pumps are used in varying environments and subject to a range of factors, it is essential to prevent them from sustaining damage. Many vacuum systems incorporate anti-cavitation protection measures. Cavitation is an inherent phenomenon; during operation, when the vacuum level reaches -0.093 MPa or lower, the water within the pump chamber of a water-ring vacuum pump can easily reach its saturated vapour pressure, at which point numerous bubbles form. These bubbles burst rapidly at the discharge end due to the increase in pressure. The water surrounding the original bubble then rapidly fills the space left by the burst bubble, causing a significant impact on the impeller and disc of the liquid ring vacuum pump, accompanied by a sharp, crackling sound.

Cavitation in a water-ring vacuum pump initially affects the impeller and disc, primarily causing pitted damage to the impeller and destroying the protective layer on the metal surface. As cavitation continues, honeycomb-like pits form on the impeller surface, and the depth of these pits gradually increases until the impeller blades are broken off due to cavitation and fluid resistance. Cavitation poses a significant threat to water-ring vacuum pumps; in practical applications, many instances of reduced performance or even damage are caused by cavitation. To prevent cavitation from affecting the pump, it is necessary to implement cavitation protection measures to safeguard the equipment and extend its service life.

The above outlines protective measures against cavitation for water-ring vacuum pumps. Owing to their various advantages, these pumps are widely used across many industries. Should you require further assistance, please do not hesitate to contact us. As specialist manufacturers, we can recommend suitable solutions tailored to your specific requirements, thereby helping you avoid losses caused by improper operation.