China Professional Roots Water Ring Vacuum Unit Pump for Chemical, Petroleum, Pharmaceutical, Electric, Food, Light Industry From China vacuum pump ac

Product Description


Product Description

JZJ2b series Roots water ring vacuum unit is an air extraction unit composed of ZJ and zjp roots vacuum pumps as injection and extraction pumps and 2BV and 2be water ring vacuum pumps as front stage pumps according to a certain pumping speed ratio. It can not only be used to extract general gases, but also gases containing water and a small amount of dust. Compared with the general mechanical vacuum pump, it is not afraid of oil pollution, water vapor and dust; Compared with the general water ring vacuum pump, it has advantages of the high limit vacuum and high pumping speed under high vacuum conditions. It is widely used in chemical, pharmaceutical, petroleum, electric power, food, light industry and other industries. It is used to pump places containing a large amount of water vapor, condensable gas and a small amount of CHINAMFG particles.

Our Advantages

JZJ2B series Roots water ring vacuum pump unit adopts 2BV and 2be water ring vacuum pumps with high efficiency and energy saving as the front stage pump and roots vacuum pump as the main pumping pump. Therefore, jzj2b series Roots water ring vacuum pump unit has the advantages of high efficiency, compact structure and high vacuum degree.

The working fluid of the front stage pump of jzj2b series Roots water ring vacuum pump unit mostly uses water, and can also use organic solvents (methanol, ethanol, xylene, acetone and other organic solvents) or other liquids. The front stage pump is used as a closed circulation system, which greatly reduces the pollution to the environment and greatly improves the recovery of organic solvents. The limit vacuum degree is determined by the saturated vapor pressure of the working fluid.

Product Parameters

Unit Type Pump model Pumping speed  (L/S) Maximum suction pressure (Pa) pressure limit Total Power (kW)
Main Pump prepump water ring oil pump unit
JZJ2B30-2 ZJ30 2BV2061 30 8000     2.25
JZJ2B30-1 ZJ30 2BV5110 30 12000     4.75
JZJ2B70-2 ZJ70 2BV5110 70 6000     5.1
JZJ2B70-1 ZJ70 2BV5111 70 12000     6.6
JZJ2B150-2A ZJP150 2BV5111 150 6000     7.7
JZJ2B150-2B ZJP150 2BV5121 150 8000     9.7
JZJ2B150-1 ZJP150 2BV5131 150 10000     13.2
JZJ2B300-2A ZJP300 2BV5131 300 4000     15
JZJ2B300-2B ZJP300 2BV5161 300 5000 267 80 19
JZJ2B300-1 ZJP300 2BE1 202 300 10000     26
JZJ2B600-2A ZJP600 2BE1 202 600 4000     27.5
JZJ2B600-2B ZJP600 2BE1 203 600 5000     42.5
JZJ2B600-1 ZJP600 2BE1 252 600 12000     50.5
JZJ2B1200-2A ZJP1200 2BE1 252 1200 2500     56
JZJ2B1200-2B ZJP1200 2BE1 253 1200 4000     86
JZJ2B1200-1 ZJP1200 2BE1 303 1200 8000     121
JZJ2B2500-2 ZJP2500 2BE1 303 2500 3000     132
JZJ2B70-2.1 ZJ70 ZJ30/2BV5110 70 6000     5.85
JZJ2B150-2.1 ZJP150 ZJ70/2BV5111 150 6000 25 0.8 8.8
JZJ2B 150-4.1 ZJP150 ZJ30/2BV5110 150 3000     6.95


Unit Type pump model pumping speed (L/S) maximum suction pressure (Pa) pressure limit total power (kW)
main pump prepump water ring unit oil pump unit
JZJ2B300-2.1 ZJP300 ZJP150/2BV5131 300 5000     17.2
JZJ2B300-2.2 ZJP300 ZJP150/2BV5121 300 4000     13.7
JZJ2B300-4.1 ZJP300 ZJ70/2BV5111 300 2000     10.6
JZJ2B600-4.1 ZJP600 ZJP150/2BV5131 600 1500     18.7
JZJ2B600-2.2 ZJP600 ZJP300/2BV5161 600 2000 25 0.8 24.5
JZJ2B1200-4.2 ZJP1200 ZJP300/2BV5161 1200 1000 30
JZJ2B1200-4.1 ZJP1200 ZJP1200/2BE1 202 1200 1200     37
JZJ2B 1200-2.2 ZJP1200 ZJP600/2BE1 203 1200 2500     53.5
JZJ2B1200-2.1 ZJP1200 ZJP600/2BE1 252 1200 3000     61.5
JZJ2B2500-4.1 ZJP2500 ZJP600/2BE1 252 2500 1000     72.5
JZJ2B70-2.1.1 ZJ70 ZJ30/ZJ30/2BV5110 70 6000     6.6
JZJ2B150-2.2.1 ZJP150 ZJ70/ZJ30/2BV5110 150 3000     8.05
JZJ2B300-2.2.1 ZJP300 ZJ150/ZJ70/2BV5111 300 3000     12.8
JZJ2B300-4.2.1 ZJP300 ZJ70/ZJ30/2BV5110 300 1200 0.5 0.05 9.85
JZJ2B600-2.2.1 ZJP600 ZJP300/ZJP150/2BV5131 600 2500 22.7
JZJ2B600-4.2.1 ZJP600 ZJP150/ZJ70/2BV5111 600 1200     14.3
JZJ2B1200-4.2.1 ZJP1200 ZJP300/ZJP150/2BV5131 1200 1000     28.2
JZJ2B2500-4.2.1 ZJ2500 ZJP600/ZJP300/2BE1 202 2500 1000     53.5

Detailed Photos


General Manager Speech

Deeply cultivate the vacuum technology, and research,develop and manufacture the vacuum equipment to provide the best solution in the vacuum field and make the vacuum application easier.

Company Profile

ZheJiang Kaien Vacuum Technology Co., Ltd. is a high-tech enterprise integrating R & D, production and operation of vacuum equipment. The company has strong technical force, excellent equipment and considerate after-sales service. The product manufacturing process is managed in strict accordance with IS09001 quality system. It mainly produces and sells screw vacuum pump, roots pump, claw vacuum pump, runoff vacuum pump, scroll pump, water ring vacuum pump, vacuum unit and other vacuum systems.

New plant plHangZhou

The company’s products have been for a number of food, medicine, refrigeration, drying plants and a number of transformer related equipment manufacturers for vacuum equipment. The products are widely used in vacuum drying and dehydration, kerosene vapor phase drying, vacuum impregnation, vacuum metallurgy, vacuum coating, vacuum evaporation, vacuum concentration, oil and gas recovery, etc.

High precision machining equipment

The company cooperates with many scientific research institutions and universities, such as ZheJiang University, China University of petroleum, ZheJiang Institute of mechanical design, etc.with colleges and universities to research and develop core technologies, and owns dozens of independent intellectual property patents.Our technology is leading, the product quality is stable, the product has a good reputation in China’s domestic market, is sold all over the country, and is exported to Europe, America, Africa, the Middle East and Southeast Asia,We adhering to the basic tenet of quality, reputation and service, the company takes leading-edge technology of vacuum pump as its own responsibility, and wholeheartedly serves customers of vacuum equipment application in various industries with rigorous working attitude and professional working style.

  Product quality wins consumer cooperation

In shipment

ISO 9001

High tech enterprise certificate

 Welcome to send your needs, we will provide you with the best service,

provide the greatest help!!!

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Warranty: One Year
Oil or Not: Oil Free
Structure: Screw
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Work Function: Mainsuction Pump


roots vacuum pump

How Do You Select the Right Size Roots Vacuum Pump for a Specific Application?

Selecting the right size Roots vacuum pump for a specific application requires careful consideration of various factors. Here’s a detailed explanation:

1. Determine the Required Pumping Speed: The pumping speed is a crucial parameter that indicates the volume flow rate of gas that the Roots vacuum pump can handle. To select the right size pump, you need to determine the required pumping speed for your application. Consider factors such as the volume of the system being evacuated, the gas load, and the desired evacuation time. The required pumping speed will help narrow down the options and identify pumps that can meet your application’s demands.

2. Consider the Ultimate Vacuum Level: The ultimate vacuum level is the lowest pressure that the Roots vacuum pump can achieve under ideal conditions. Different applications have varying vacuum level requirements. Determine the desired ultimate vacuum level for your application, keeping in mind factors such as the sensitivity of the process, the presence of moisture or contaminants, and the specific requirements of the downstream equipment or processes. Ensure that the selected pump can reach the required vacuum level.

3. Evaluate Gas Composition and Characteristics: The composition and characteristics of the gas being pumped are essential considerations. Some gases, such as condensable vapors or corrosive gases, may require special pump features or materials to ensure efficient and safe operation. Consider the gas composition, including its chemical properties, temperature, and any potential challenges it may pose to the pump’s performance or longevity. Consult the pump manufacturer or specialist for guidance on selecting a pump suitable for handling the specific gas or gas mixture in your application.

4. Account for System Constraints and Operating Conditions: Assess the system constraints and operating conditions that may impact the pump’s performance. Factors such as the available space for the pump, power supply requirements, cooling options, and noise limitations should be taken into consideration. Additionally, consider any specific operating conditions such as temperature extremes, high-altitude operation, or continuous-duty requirements. Ensure that the selected pump is compatible with the system constraints and can operate reliably under the anticipated operating conditions.

5. Consult Manufacturer Specifications and Performance Curves: Review the manufacturer’s specifications and performance curves for the Roots vacuum pumps under consideration. These documents provide detailed information about the pump’s capabilities, operating ranges, and performance characteristics. Pay attention to parameters such as pumping speed, ultimate vacuum level, power requirements, and any specific features or limitations. Compare the specifications with your application requirements to identify pumps that align with your needs.

6. Seek Expert Advice: If you are unsure about the pump selection process or have complex application requirements, it is recommended to seek advice from pump manufacturers or specialists. They can provide valuable insights, recommend suitable pump models, and assist in evaluating your specific application needs.

7. Consider Future Expansion and Flexibility: When selecting a Roots vacuum pump, consider the potential for future expansion or changes in your application. If there is a possibility of increased gas load or system requirements in the future, it may be advantageous to select a slightly larger pump to accommodate potential growth and ensure long-term suitability.

In summary, selecting the right size Roots vacuum pump involves determining the required pumping speed, considering the ultimate vacuum level, evaluating gas composition and characteristics, accounting for system constraints and operating conditions, consulting manufacturer specifications, and seeking expert advice when needed. By carefully considering these factors, you can choose a Roots vacuum pump that meets the specific requirements of your application, ensuring efficient and reliable operation.

roots vacuum pump

Are Roots Vacuum Pumps Used in Industrial Applications?

Yes, Roots vacuum pumps are widely used in various industrial applications. Here’s a detailed explanation of their application in industrial settings:

1. Chemical Processing: Roots vacuum pumps find extensive use in the chemical processing industry. They are employed for processes such as vacuum distillation, solvent recovery, drying, and degassing. Their high pumping speed and ability to handle corrosive gases make them suitable for handling various chemical vapors and byproducts.

2. Pharmaceuticals: In the pharmaceutical industry, Roots vacuum pumps are utilized for applications such as vacuum drying, tablet coating, freeze drying, and vacuum packaging. Their oil-free operation ensures a clean and contaminant-free vacuum environment, which is crucial for pharmaceutical manufacturing processes.

3. Food Processing: Roots vacuum pumps play a significant role in the food processing industry. They are employed for vacuum packaging, vacuum cooling, and vacuum drying of food products. The oil-free operation of Roots vacuum pumps ensures food safety and eliminates the risk of contamination.

4. Environmental Technology: Roots vacuum pumps are utilized in environmental technology applications, including wastewater treatment, biogas processing, and air pollution control. They are employed to extract gases, control emissions, and facilitate the treatment and purification of air and water.

5. Semiconductor Manufacturing: In the semiconductor industry, Roots vacuum pumps are used for processes such as ion implantation, physical vapor deposition (PVD), chemical vapor deposition (CVD), and etching. Their high pumping speed and oil-free operation are crucial for maintaining clean vacuum conditions required in semiconductor fabrication.

6. Packaging and Printing: Roots vacuum pumps are employed in packaging and printing applications. They are used for vacuum packaging of products, vacuum forming of packaging materials, and in printing presses for paper handling and ink transfer.

7. Automotive Industry: Roots vacuum pumps find application in the automotive industry for processes such as brake system vacuum assist, crankcase ventilation, and emissions control systems. They help create vacuum conditions required for the operation of various automotive systems.

8. Research and Laboratory: Roots vacuum pumps are utilized in research laboratories and scientific facilities for a wide range of applications. They are used in vacuum ovens, freeze dryers, vacuum filtration, electron microscopy, surface analysis, and other laboratory processes that require controlled vacuum environments.

9. Energy Industry: In the energy sector, Roots vacuum pumps are used for applications such as steam turbine condenser air extraction, transformer drying, and vacuum impregnation of electrical components. They help maintain proper vacuum conditions for efficient and reliable operation of energy systems.

These are just a few examples of the industrial applications where Roots vacuum pumps are commonly used. Their high pumping speed, large gas handling capacity, oil-free operation, reliability, and versatility make them suitable for a wide range of industrial processes that require efficient and reliable vacuum generation.

China Professional Roots Water Ring Vacuum Unit Pump for Chemical, Petroleum, Pharmaceutical, Electric, Food, Light Industry From China   vacuum pump acChina Professional Roots Water Ring Vacuum Unit Pump for Chemical, Petroleum, Pharmaceutical, Electric, Food, Light Industry From China   vacuum pump ac
editor by CX 2024-04-11