After one to two years of use, it will be found that the vacuum degree of the water ring vacuum pump does not meet the required requirements. There are many reasons for the vacuum degree not reaching the required level. It may be that the pipeline is not well sealed and there is air leakage; it may be The temperature of the circulating water is too high; it may also be cavitation, etc. Today, we mainly explain the concept of cavitation in detail, what is the cause of this phenomenon? How can we avoid this phenomenon?

1. Causes of cavitation in the water ring pump
Because the higher the vacuum degree, the lower the boiling point. When the liquid boils, a large number of bubbles will be generated. These tiny bubbles are easily broken. During the crushing process, the impeller will have a strong impact. Over time, the impeller is perforated, and the severity of the damage can reach impossible. It is forced to replace due to the degree of repair; if the working fluid flow is too high, it will also produce sharp noise, so it is necessary to reduce the flow.

2. How to avoid cavitation?
In response to this phenomenon, the impeller is designed into a variety of materials, including copper impeller, stainless steel impeller, stainless steel material is also divided into 304 stainless steel, 316 stainless steel, 316L stainless steel, etc.; there is a cavitation valve on the front of the water ring pump, when the gas When the corrosion sound is too high, opening the cavitation valve a little will reduce the noise, but it is not suitable for the process requiring high vacuum, because the vacuum degree will be greatly reduced, the cavitation valve is represented by the 2BV water ring vacuum pump s position.