2sk Series Best Selling Water Ring Vacuum Pump Supplier

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Model NO.: 2SK-6B
Motor Power: 55kw,45kw
Rotating Speed: 980rpm
Water Supply: 60-110L/Min
Inlet & Outlet Dimensions: 100mm
Weight: 926kg
Trademark: DVE
Transport Package: Plywood Case
Specification: European Market Level, Spare Parts of High Level
Origin: Zhejiang, China
HS Code: 8414100090

DESCRIPTION

The 2SK series two-stage liquid ring vacuum pumps are designed to perform efficiently, similar to two SK series water ring vacuum pumps. Due to the limitations of SK series pumps in achieving high vacuum levels (up to -700mmHg), China developed the 2SK series in the 1980s to meet the demand for higher vacuum and greater pumping speed under such conditions.
2sk Series Best Selling Water Ring Vacuum Pump Supplier

ADVANTAGE

1. Compared with SK water vacuum pump, it offers higher vacuum and pumping speed.
2. Simple structure and easy maintenance.
3. The main working medium is water, which results in low maintenance costs.
4. Widely used in various industries, including handling water vapor, flammable, explosive gases, and gases containing small amounts of dust and liquid.
5. Can operate in harsh conditions.
 

FEATURES

1. The SK and 2SK series water ring vacuum pumps can be used for exhausting both ordinary gases and condensable gases (such as water vapor). Their isothermal compression feature allows them to handle flammable and explosive gases. When made from anti-corrosion materials, they can also be used for corrosive gases.
 
2. The 2YK series liquid ring vacuum pumps offer higher vacuum levels and better applicability. By selecting appropriate working media, different types of gases can be pumped, making them suitable for a wider range of applications.
 
3. These pumps run smoothly, with low noise and energy consumption. They are 30% more energy-efficient compared to water jet and water vapor jet pumps.

WORK THEORY

2sk Series Best Selling Water Ring Vacuum Pump Supplier
 

PARAMETER

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     35 1.5 2900 8 25 45
SK-0.8 0.8 47     35 2.2 2900 10 40 60
SK-1.5 1.5 47     35 4 2900 15 40 75
SK-3 3 80     60  5.5 1450 25 50 153
SK-6 6 80     60  11 1450 35 50 210
SK-12 12 80     60  22 980 70 100 600
SK-12B 12 80     60  18.5 980 60 100 450
SK-25 25 80     60  45 980 70 100 900
SK-30 30 80     60  55 980 75 100 1200
SK-42 42 80     60 75 740 100 100 1500
2SK-2B 2 40     30 5.5 1450 20 50 185
2YK-2B 2 6.6    5 5.5 1450 20 50 185
2SK-3 3 40     30 7.5 1450 25 50 320
2YK-3 3 6.6    5 7.5 1450 25 50 320
2SK-6B 6 33     30 11 1450 35 50 370
2YK-6B 6 6.6    5 11 1450 35 50 370
2SK-12 12 33     25 22 980 70 80 850
2YK-12 12 6.6    5 22 980 70 80 850
2SK-25 25 33     25 55,45 980 60-110 100 926

APPLICATION
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 (including the electronics field). It can be combined with Roots Vacuum Pumps and atmospheric jet pumps to achieve high vacuum, high efficiency, and low power consumption.

Regular Selection for Water(Liquid)Ring Vacuum Pump
1, Based on the vacuum value
(1) If the pump is operated for long time with the inlet pressure range between 1.3×10⁴~1×10⁵ Pa (between 100 and 760 Torr), please choose the SK series water ring vacuum pump.
(2) If the pump is operated for long time with the inlet pressure range between 5×10³~1.3×10⁴ Pa (between 40 and 100 Torr), please choose the 2SK series water ring vacuum pump.
(3) If the pump is operated for long time with the inlet pressure range between 1×10³~1.3×10⁴ 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

If 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 media temperature inside the pump chamber should not be higher than 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 media in order to ensure that the max temperature is 30ºC-50ºC, 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.

3, Choose the dynamic seal of the shaft:
Choose the packing seal in general occasions; choose the mechanical seal when the pump is used in no-leak occasions.

4, Choose the material of the part that the gas passed:

(1) For non-anti-corrosion pumps, the shaft is made of 45# steel or 40Cr, 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 coatings.
 

5, The motor should be selected based on pumping pressure.

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, not a vacuum pump refitted. 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, it can use the vacuum pump refitted as a compressor. The power of the equipped motor should be increased appropriately.


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.


2sk Series Best Selling Water Ring Vacuum Pump Supplier
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