一、Features: 
1. Expanded the suction range of 2BE1 vacuum pump: equipped with the injector, the ultimate suction absolute pressure can be up to 8hPa.
2. Increased the pumping capacity of 2BE1 under the absolute pressure of < 60hPa.
3. Improved operation reliability of 2BE1 vacuum pump under high vacuum: When use the normal temperature water as working liquid, if the vacuum pump works below 60hPa for a long time, the cavitation prevention valve can be installed to avoid the damage of cavitation to the pump, but the pump at higher vacuum will reduce or even fail to pump. With the P type injector, the pump's working conditions were improved while the pumping volume was increased, and cavitation erosion was eliminated.
二、Model Description: 

Model significance: 2BE1 20 3-0 P

2BE1: series code name.

20: Nominal radius of the impeller in centimeters.

3: the length and diameter ratio of the impeller.

0: inhalation extreme pressure code." 0" can reach 33hPa and 1" can reach 160hPa.

P: atmospheric ejector

三、Spectrogram: 

四、Application field: 
Oil production industry: water and deoxygenating
Cigarette industry: vacuum moisture regains
Food industry: vacuum conveying, vacuum drying
Aerial testing: upper-air simulation
Pharmaceutical industry: pharmaceutical drying
Model significance: 2BE1 20 3-0 P
2BE1: series code name.
20: Nominal radius of the impeller in centimeters.
3: the length and diameter ratio of the impeller.
0: inhalation extreme pressure code." 0" can reach 33hPa and 1" can reach 160hPa.
P: atmospheric ejector