DESCRIPTION The 2SK series two-stage liquid ring vacuum pumps are designed to perform efficiently like two sets of SK series water ring vacuum pumps. While the SK series pumps can only achieve a maximum vacuum of -700mmHg, the 2SK series was developed in the 1980s to meet the need for higher vacuum and greater pumping speed under high vacuum conditions. This makes them ideal for industrial applications requiring precise and reliable vacuum control. ADVANTAGE FEATURES PARAMETER APPLICATION Regular Selection for Water(Liquid)Ring Vacuum Pump 3, Choose the dynamic seal of the shaft: 5, The motor should be selected based on pumping pressure. Bimetallic Alloy Screw & Barrel,Injection Molding Screw Barrel,Bimetallic Screws And Barrels,Bimetallic Single Screw & Barrel Zhejiang Jinhai Plastic Machinery Co., Ltd. , https://www.jinhaiextruder.com
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WORK THEORY
Model
Displacement
(m3/min)
Ultimate Pressure
hPa   Torr
Motor Power
 (kW)
Rotating Speed
(rpm)
Water Supply
(L/min)
Inlet & Outlet Dimensions (mm)
Weight
(kg)
SK-0.5B
0.5
47 Â Â 35
1.5
2900
8
25
45
SK-0.8
0.8
47 Â Â 35
2.2
2900
10
40
60
SK-1.5
1.5
47 Â Â Â 35
4
2900
15
40
75
SK-3
3
80 Â Â Â 60Â
5.5
1450
25
50
153
SK-6
6
80 Â Â Â 60Â
11
1450
35
50
210
SK-12
12
80 Â Â Â 60Â
22
980
70
100
600
SK-12B
12
80 Â Â Â 60Â
18.5
980
60
100
450
SK-25
25
80 Â Â Â 60Â
45
980
70
100
900
SK-30
30
80 Â Â Â 60Â
55
980
75
100
1200
SK-42
42
80 Â Â Â 60
75
740
100
100
1500
2SK-2B
2
40 Â Â Â 30
5.5
1450
20
50
185
2YK-2B
2
6.6 Â Â 5
5.5
1450
20
50
185
2SK-3
3
40 Â Â 30
7.5
1450
25
50
320
2YK-3
3
6.6 Â Â 5
7.5
1450
25
50
320
2SK-6B
6
33 Â Â 30
11
1450
35
50
370
2YK-6B
6
6.6 Â Â 5
11
1450
35
50
370
2SK-12
12
33 Â Â 25
22
980
70
80
850
2YK-12
12
6.6 Â Â 5
22
980
70
80
850
2SK-25
25
33 Â Â 25
55,45
980
60-110
100
926
It can be applied to vacuum drying, vacuum degassing, vacuum concentration, vacuum evaporation, and vacuum impregnation processes in chemical, pharmaceutical, metallurgy, food, medicine, textile, papermaking, and electrical industries (electronic industrial field), among others. It can be combined with Roots Vacuum Pumps and atmospheric jet pumps to achieve high vacuum, high efficiency, and low power consumption.
1, Based on the vacuum value
(1) If the pump is operated for a long time with the inlet pressure range between 1.3×10^4~1×10^5 Pa (between 100 and 760 Torr), please choose the SK series water ring vacuum pump.
(2) If the pump is operated for a long time with the inlet pressure range between 5×10^3~1.3×10^4 Pa (between 40 and 100 Torr), please choose the 2SK series water ring vacuum pump.
(3) If the pump is operated for a long time with the inlet pressure range between 1×10^3~1.3×10^4 Pa (between 8 and 100 Torr), please choose the 2YK series liquid ring vacuum pump.
2, Working Media
There are four principles to choose working media (i.e., ring liquids):
(1) Lower saturated steam pressure
(2) Lower viscosity
(3) Stable physical & chemical features; no chemical reaction with the pumped gas; no corrosion to the pump; no pollution to the environment.
(4) Economy
Choose the packing seal in general occasions; choose the mechanical seal when the pump is used in a no-leak occasion.
4, Choose the material of the part that the gas passed:
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6, Composition methods of the water ring vacuum pump system
The open circulation system should be used if the working liquid in the outlet need not be circulated or partially circulated.
The closed circulation system should be used if the working liquid in the outlet must be circulated.
Bimetallic Alloy Screw & Barrel
High Quality Water Ring Vacuum Pump for Lab
Model NO.: SK-1.5
Motor Power: 4kw
Rotating Speed: 2900rpm
Water Supply: 15L/Min
Inlet & Outlet Dimensions: 40mm
Weight: 75kg
Trademark: DVE
Transport Package: Wood Case
Specification: With CE Mark, European Market Standard
Origin: Zhejiang, China
HS Code: 8414100090
1. Compared with SK water vacuum pump, it achieves higher vacuum and faster pumping speed.
2. Simple structure and easy maintenance, ensuring long-term reliability.
3. The working medium is typically water, which reduces maintenance costs significantly.
4. Suitable for a wide range of industries, including handling water vapor, flammable, explosive gases, and gases containing small amounts of dust and liquid.
5. Operates effectively in harsh environments.
1. The SK and 2SK series water ring vacuum pumps are versatile, capable of handling both ordinary and condensable gases (such as water vapor). Due to their isothermal compression characteristics, they can safely handle flammable and explosive gases. When constructed with anti-corrosion materials, they can also manage corrosive gases.
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2. The 2YK series liquid ring vacuum pumps offer even better vacuum performance and broader applicability. By selecting the appropriate working medium, different types of gases can be efficiently pumped, making them suitable for a wider range of applications.
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3. These pumps operate smoothly with low noise and energy consumption. They are 30% more energy-efficient compared to water jet and steam jet pumps.
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If the water is selected as the working medium, the best temperature of supply water should be lower than or equal to 15°C; the highest one should not be higher than 40°C. While transformer oil or other low viscosity and saturated vapor pressure industrial oils are used as the working media, the general supply temperature should not exceed 40°C, and the working medium temperature inside the pump chamber should not exceed 60°C. When a liquid with a lower boiling point is selected as the working medium under some special circumstances, a cooling unit must be equipped to cool down the working medium to ensure that the max temperature is 30°C-50°C, lower than the boiling point. For the closed circulation system of working media, a liquid storage unit and cooler must be equipped, and a gas-liquid separator must be installed at the outlet. A mechanical seal should be used for the dynamic seal of the shaft.
(1) For non-anti-corrosion pumps, the shaft is made of 45# steel or 40Cr, and other parts are made of cast iron or brass;
(2) For anti-corrosion pumps, the parts that the gas passed should be made of stainless steel 304 and 306, or other materials suitable for the respective corrosive gas, or the parts should be coated with anti-corrosion coating.
If the pump is used for vacuuming while transferring gas, the pressure of the pump outlet exceeds the standard atmospheric pressure.
When the outlet pressure exceeds 0.15MPa, a special double-stage liquid ring compressor should be chosen instead of refitting the vacuum pump. The power of the equipped motor should be increased significantly. Additionally, a special gas-liquid separator and auto-drain unit should be equipped.
When the outlet pressure is below 0.15MPa, the vacuum pump can be refitted as a compressor. The power of the equipped motor should be increased appropriately.
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High Quality Water Ring Vacuum Pump for Lab