What is the vacuum degree of 2SK water ring vacuum pump?

As a widely used vacuum acquisition equipment in the industrial field,water ring vacuum pumps play a key role in industries such as chemical,pharmaceutical,food,and power due to their simple structure,stable operation,and strong adaptability.Among them,the 2SK series water ring vacuum pump has become the primary choice for high vacuum demand scenarios due to its two-stage design.
1、Technical principle of 2SK water ring vacuum pump
The core working principle of the water ring vacuum pump is based on the"liquid ring compression"mechanism:
Liquid ring formation:When the impeller of the 2SK water ring vacuum pump rotates,centrifugal force throws the working fluid towards the inner wall of the pump casing,forming a rotating liquid ring of equal thickness.
Gas compression:A crescent shaped air chamber is formed between the impeller and the liquid ring.After entering through the suction port,the gas is compressed as the impeller rotates and discharged from the exhaust port.
Double stage structure advantage:The 2SK series adopts a two-stage compression design,where the gas is compressed and further compressed in the second stage,significantly improving the vacuum degree.
2、Vacuum degree parameters of 2SK water ring vacuum pump
1.Theory
Pressure range:The theoretical vacuum degree of 2SK water ring vacuum pump can reach-95 kPa,which is close to 95%vacuum degree.

Compared to single-stage pumps:The vacuum degree of single-stage water ring pumps is usually-70 kPa to-80 kPa,while the two-stage design increases the vacuum degree by about 20%-30%through series compression.

2.Attenuation under actual working conditions
In actual operation,the vacuum degree is affected by the following factors:
Working fluid temperature:An increase in water temperature of the 2SK water ring vacuum pump will cause an increase in the saturated vapor pressure of the liquid ring,limiting the vacuum degree.
Leakage and sealing:Poor sealing of pipelines,flanges,or pump bodies can introduce air and reduce vacuum levels.
Gas properties:If the extracted gas contains condensable components,a gas ballast device or condenser should be equipped to maintain performance.
Altitude and atmospheric pressure:When atmospheric pressure decreases in high-altitude areas,the actual vacuum level will correspondingly decrease.
The 2SK water ring vacuum pump,with its two-stage compression technology,can theoretically achieve a high vacuum degree of-95 kPa,but its actual performance needs to be comprehensively evaluated based on working conditions.By optimizing the working fluid system,strengthening the sealing design,and supporting auxiliary equipment,it is possible to approach the theoretical value to the limit.