Food Industry Vacuum Drying Water/Liquid Ring Pump

DESCRIPTION
The 2SK Series Two-Stage Liquid Ring Vacuum Pump is designed to deliver exceptional performance in high vacuum and large pumping speed applications. Unlike the standard SK series water ring pumps that can only reach a maximum vacuum of -700mmHg, the 2SK series was developed in the 1980s to meet the growing demand for higher efficiency and more robust vacuum systems. These pumps are ideal for use in industries such as chemical, pharmaceutical, food processing, and more, where high vacuum conditions are required. They are also suitable for handling gases containing small amounts of dust, moisture, or even flammable and explosive substances due to their isothermal compression capabilities.


ADVANTAGE
1. Offers superior vacuum levels and pumping speed compared to traditional SK series pumps.
2. Simple design with easy maintenance and operation.
3. Uses water as the primary working medium, ensuring low maintenance costs and environmental friendliness.
4. Versatile application across multiple industries, including handling of water vapor, flammable, and explosive gases.
5. Operates efficiently in harsh environments and under varying conditions.

FEATURES
1. The SK and 2SK series water ring vacuum pumps are capable of exhausting both non-condensable and condensable gases (such as water vapor). Their isothermal compression feature allows them to safely handle flammable and explosive gases. With appropriate anti-corrosion materials, they can also be used for corrosive gas applications.

2. The 2YK series liquid ring vacuum pumps provide even better vacuum performance and broader applicability. By selecting the right working media, they can effectively pump various types of gases, making them suitable for a wide range of applications.

3. These pumps operate smoothly, produce minimal noise, and consume less energy. Compared to water jet and steam jet pumps, they save up to 30% in energy consumption.

PARAMETER

 
APPLICATIONS
This pump is widely used in vacuum drying, vacuum degassing, vacuum concentration, vacuum evaporation, and vacuum impregnation processes across industries like chemical, pharmaceutical, metallurgy, food, medicine, textile, papermaking, and electronics. 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), 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), 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), 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 using water as the working medium, the supply water temperature should be below or equal to 15°C, and not exceed 40°C. For transformer oil or other low viscosity and low saturated vapor pressure industrial oils, the general supply temperature should not exceed 40°C, and the internal pump chamber temperature should not exceed 60°C. When using a liquid with a lower boiling point, a cooling unit must be installed to ensure the maximum temperature is between 30°C and 50°C, below the boiling point. For closed circulation systems, a liquid storage unit and cooler must be equipped, along with a gas-liquid separator at the outlet. A mechanical seal is recommended for the shaft's dynamic seal.

3. Choose the dynamic seal of the shaft:
Use packing seal in general occasions; use mechanical seal when no leakage is required.

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, and other parts are made of cast iron or brass.
(2) For anti-corrosion pumps, the parts that the gas passes through should be made of stainless steel 304 or 306, or other materials suitable for the respective corrosive gas, or have anti-corrosion coatings.

5. Motor selection based on pumping pressure:
If the pump is used for vacuuming while transferring gas, the outlet pressure exceeds standard atmospheric pressure.
When the outlet pressure exceeds 0.15 MPa, a special double-stage liquid ring compressor should be selected instead of a vacuum pump. The motor power should be significantly increased, and a special gas-liquid separator and automatic drain unit should be added.
When the outlet pressure is below 0.15 MPa, the vacuum pump can be refitted as a compressor, with the motor power increased appropriately.

6. Composition methods of the water ring vacuum pump system:
Use an open circulation system if the working liquid in the outlet does not need to be circulated or only partially circulated.
Use a closed circulation system if the working liquid in the outlet must be fully circulated.





Sea Port: Ningbo/Shanghai, China
Standard: CE Mark, High-Level Spare Parts
Delivery: Normally according to our factory production schedule, but we can follow your first order time.
Warranty: If the pump has quality issues, free replacement 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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