Food Industry Vacuum Drying Water/Liquid Ring Pump

DESCRIPTION
The 2SK Series Two-Stage Liquid Ring Vacuum Pump is designed to operate efficiently, similar to two SK series water ring vacuum pumps. While the SK series pumps typically achieve a maximum vacuum of -700 mmHg, the 2SK series was developed in the 1980s to meet the need for higher vacuum and larger pumping speeds under high vacuum conditions. This model is ideal for industrial applications that require consistent and reliable vacuum performance.


ADVANTAGE
1. Compared to the SK water vacuum pump, it achieves a higher vacuum and better pumping speed.
2. Simple structure and easy maintenance.
3. The main working medium is water, resulting in low maintenance costs.
4. It can be used in various industries for suction of water vapor, flammable, explosive gases, and gases containing small amounts of dust and liquid.
5. It performs well in harsh environments.
FEATURES
1. The SK and 2SK series water ring vacuum pumps are suitable for exhausting both ordinary gases and condensable gases (such as water vapor). Due to their isothermal compression feature, they can safely handle flammable and explosive gases. When made from anti-corrosion materials, they can also be used for corrosive gas exhaust.
2. The 2YK series liquid ring vacuum pumps offer higher vacuum levels and broader applicability. Different types of gases can be pumped using appropriate working media, making them suitable for a wider range of applications.
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.
PARAMETER

 
APPLICATIONS
This pump is widely used in vacuum drying, vacuum degassing, vacuum concentration, vacuum evaporation, and vacuum impregnation processes across various industries such as chemical, pharmaceutical, metallurgy, food, medicine, textile, papermaking, and electronics. It can be combined with Roots Vacuum Pumps and atmospheric jet pumps to create a high-vacuum system with 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 inlet pressure between 1.3×10⁴~1×10⁵ Pa (between 100 and 760 Torr), choose the SK series water ring vacuum pump.
(2) If the pump is operated for long time with inlet pressure between 5×10³~1.3×10⁴ Pa (between 40 and 100 Torr), choose the 2SK series water ring vacuum pump.
(3) If the pump is operated for long time with inlet pressure between 1×10³~1.3×10⁴ Pa (between 8 and 100 Torr), 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 and chemical features; no chemical reaction with the pumped gas; no corrosion to the pump; no pollution to the environment.
(4) Economy
When 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 exceed 40°C. When transformer oil or other low-viscosity and low-saturated vapor pressure industrial oils are used, the general supply temperature should not exceed 40°C, and the working medium temperature inside the pump chamber should not exceed 60°C. Under special circumstances, a cooling unit must be equipped to cool the working medium to ensure the max temperature is 30°C–50°C, lower than the boiling point. For closed circulation systems, 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 packing seal in general occasions; choose mechanical seal when the pump is used in a non-leakage condition.
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 the 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 0.15 MPa, a special double-stage liquid ring compressor should be chosen instead of a vacuum pump. The power of the equipped motor should be increased significantly. Special gas-liquid separators and auto-drain units should also be equipped.
When the outlet pressure is below 0.15 MPa, the vacuum pump can be 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 does not need to be circulated or partially circulated.
The closed circulation system should be used if the working liquid in the outlet must be circulated.



Sea Port: Ningbo/Shanghai, China
Standard: CE Mark, Spare Parts of High Level
Delivery: Normally according to our factory production schedule, but we can follow your first order time.
Warranty: If the pump appears quality problems, free replacements of spare parts will be offered within one year.
WE CAN PROVIDE YOU
1. On-time Delivery, with More Choice
2. Perfect Technical Support
3. Customized Vacuum Solutions and Service
4. Samples Available
5. Long Quality Guarantee
6. Fast Response to Customers' Feedback in 12 hours
DEVELOPMENT VACUUM EQUIPMENT CO., LTD
ADD: DONGGANG INDZONE, TAIZHOU, ZHEJIANG, CHINA PC: 317106
TEL: +86-576-83598308 FAX: +86-576-83598309

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