The 2SK-P1 series two-stage liquid ring vacuum pump-air jet pump unit mainly works under the adiabatic pressure of 10-50mmHg, but its efficiency is low in the high vacuum region. If the Roots water-ring vacuum unit is needed for long-term operation, the best pumping efficiency in the high vacuum region can be obtained.
2SK liquid ring vacuum pump and 2SK-P1 series two-stage liquid ring vacuum pump-atmospheric jet pump unit are used to pump air and other non-corrosive, water-insoluble, non-solid particles in order to obtain a higher vacuum in an airtight container.
2SK liquid ring vacuum pumpis widely used in food, textile, chemical, pharmaceutical and metallurgical industries and electronic fields such as vacuum evaporation, vacuum concentration, vacuum moisture regain, vacuum impregnation, vacuum drying and vacuum smelting.
The 2SK series is used for working conditions with suction pressure below – 0.08MPa, and the 2SK – P1 series is used for working conditions with suction pressure below – 0.096MPa.
1. Compared with SK series single-stage liquid ring vacuum pump, it has the characteristics of high vacuum and high pumping speed in high vacuum region.
2. Under the same pumping speed, the shaft power is obviously higher than that of 2BV and 2BE series water ring vacuum pumps.
3. because the structure is a double leaf wheel structure, manufacturing and maintenance are more complex and more vulnerable parts.
| Model | Suction capacity | Ultimate vacuum | Power | speed | Water supply | Inlet/outlet diam | Water inlet |
| m³/min | MPa（G） | KW | r/min | L/min | DN(mm） | (mm) | |
| 2SK1.5 | 1.35 | -0.097 | 4 | 1440 | 10-15 | 40 | G1/2” |
| 2SK-3 | 2.7 | -0.098 | 7.5/11 | 1440 | 15-20 | 40 | G1/2” |
| 2SK-6 | 5.4 | -0.098 | 15 | 1460 | 25-35 | 65 | G1/2” |
| 2SK-12 | 10.8 | -0.098 | 22/30 | 970 | 40-50 | 100 | G1/2” |
| 2SK-20 | 18 | -0.098 | 45 | 740 | 60-80 | 125 | G3/4” |
| 2SK-30 | 27 | -0.098 | 55/75 | 740 | 70-90 | 125 | G3/4” |
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