China Good quality Jzj2b Roots Vacuum Pump with Compressor, Screwpumps, Oil-Less Piston, Rotaryvane2be2sk2BV vacuum pump brakes

Product Description


20 Years
   ZiBoZhuoXin Pump Industry co,.Ltd is located in a century industrial city known as the Pump Capital of China—HangZhou city, ZheJiang Province.  Has over 20 years’ experience of manufacturing vacuum pumps and 10+ years’ experience of exporting.
Various products
   We can suppply all type of vacuum pumps and spare parts in China, 2BV/2BEA/2BEC/SK/2SK/JZJ2B/ etc, and other industrial machine;
24 Hours
   Please do not hestiate to contact us if have any urgent matters,each of your inquiries will be taken into account and get our response within 24 hours.

Product Main feature:
JZJ2B Roots series water ring unit is consists of ZJ type roots pump as the main pump,2BV/2BE series of water ring pump or Roots-water ring unit as a fore pump pumping unit. It can be used to pumping gas in addition to, can also aspirate containing water, compared to organic solvent or a small amount of dust gas. And general mechanical vacuum pump, not afraid of oil pollution, not afraid of water, gas and dust, and compared with the general water ring vacuum pump, with vacuum high and pump speed characteristics under high vacuum condition.
Comparing with common liquid ring vacuum pump,the capacity to remain high pumping speed under high or ultimate vacuum degree becomes its main advantage. Except for normal gas suction, this system can also pump special gas with small amount of vapor or dust. Additionally, this system is free from oil pollution, as well as vapor and dust.
Since the 2BVC type of liquid ring pump has been adopted as its fore pump, and it is compact-designed with no air leakage and high protection level. Besides,our 2BV type is more anti corrosive than 2SKC type, because all 2BVC impellers are SS304 material.
Another note, the fore pump can be designed as a closed circulation system so to reduce the environment pollution greatly.
JZJ2B Series Roots Water Ring Vacuum Unit Technical Specifications:

Unit type pump type suction speed
Max. suction pressure(Pa) Limited vacuum (Pa) abs Total power
main pump fore pump water ring oil ring
JZJ2B15-2 ZJ15 2BVC2060 15 8000   
JZJ2B30-2 ZJ30 2BVC2061 30 8000 2.25
JZJ2B30-1 ZJ30 2BVC5110 30 12000 4.75
JZJ2B70-2 ZJ70 2BVC5110 70 6000 5.5
JZJ2B70-1 ZJ70 2BVC5111 70 12000 7
JZJ2B150-2A ZJ150 2BVC5111 150 6000 8.5
JZJ2B150-2B ZJ150 2BVC5121 150 8000 10.5
JZJ2B150-1 ZJ150 2BVC5131 150 10000 14
JZJ2B300-2A ZJ300 2BVC5131 300 4000 15
JZJ2B300-2B ZJ300 2BVC5161 300 5000 19
JZJ2B300-1 ZJ300 2BEA 202 300 10000 26
JZJ2B600-2A ZJ600 2BEA 202 600 4000 29.5
JZJ2B600-2B ZJ600 2BEA 203 600 5000 44.5
JZJ2B600-1 ZJ600 2BEA 252 600 12000 52.5
JZJ2B1200-2A ZJ1200 2BEA 252 1200 2500 60
JZJ2B1200-2B ZJ1200 2BEA 253 1200 4000` 90
JZJ2B1200-1 ZJ1200 2BEA 303 1200 8000 125
JZJ2B2500-2 ZJ2500 2BEA 303 2500 3000 132
JZJ2B30-2.1 ZJ30 ZJ15/2BVC2061 30 8000   
JZJ2B70-2.1 ZJ70 ZJ30/2BVC5110 70 6000 6.25
JZJ2B150-2.1 ZJ150 ZJ70/2BVC5111 150 6000 10
JZJ2B150-4.1 ZJ150 ZJ30/2BVC5110 150 3000 7.75
JZJ2B300-2.1 ZJ300 ZJ150/2BVC5131 300 5000 18
JZJ2B300-2.2 ZJ300 ZJ150/2BVC5121 300 4000 14.5
JZJ2B300-4.1 ZJ300 ZJ70/2BVC5111 300 2000 11
JZJ2B600-4.1 ZJ600 ZJ150/2BVC5131 600 1500 21.5
JZJ2B600-2.2 ZJ600 ZJ300/2BVC5161 600 2000 26.5
JZJ2B1200-4.2 ZJ1200 ZJ300/2BVC5161 1200 1000 34
JZJ2B1200-4.1 ZJ1200 ZJ1200/2BEA 202 1200 1200 41
JZJ2B1200-2.2 ZJ1200 ZJ600/2BEA 203 1200 2500 59.5
JZJ2B1200-2.1 ZJ1200 ZJ600/2BEA 252 1200 3000 67.5
JZJ2B2500-4.1 ZJ2500 ZJ600/2BEA 252 2500 1000 74.5
JZJ2B30-2.1.1 ZJ30 ZJ15/ZJ15/2BVC2061 30 8000  0.5  0.05 3.35
JZJ2B70-2.2.1 ZJ70 ZJ30/ZJ15/2BVC2061 70 4000 4.3
JZJ2B70-2.1.1 ZJ70 ZJ30/ZJ30/2BVC5110 70 6000 7
JZJ2B150-2.2.1 ZJ150 ZJ70/ZJ30/2BVC5110 150 3000 9.25
JZJ2B300-2.2.1 ZJ300 ZJ150/ZJ70/2BVC5111 300 3000 14
JZJ2B300-4.2.1 ZJ300 ZJ70/ZJ30/2BVC5110 300 1200 10.25
JZJ2B600-2.2.1 ZJ600 ZJ300/ZJ150/2BVC5131 600 2500 25.5
JZJ2B600-4.2.1 ZJ600 ZJ150/ZJ70/2BVC5111 600 1200 17.5
JZJ2B1200-4.2.1 ZJ1200 ZJ300/ZJ150/2BVC5131 1200 1000 33
JZJ2B2500-4.2.1 ZJ2500 ZJ600/ZJ300/2BEA 202 2500 1000 55.5
JZJ2B5000-4.2.1 ZJ5000 ZJ1200/ZJ600/2BEA 252 5000 800 104.5
JZJ2B10000-4.2.1 ZJ10000 ZJ2500/ZJ1200/2BEA 303 10000 800 202

Above are recommended models as per national standards. Since the suction pressure will be changed as per distinguished working condition, before model selection, the verifying calculation as per actual suction and discharging process, condensation situation of condensable gas, changing time for suction pressure is required. Or referring to the clients current system is also workable.
Please refer to instructions of each pump for technical parameter checking.
The max suction pressure means the pressure under which the main pump can work. Over this degree, the main pump will be result to overloaded.

Q: What’s your MOQ?
A: One set;

Q: What are the causes of no flow or insufficient flow of centrifugal pump?
A: There is air in the suction pipe or pump, which needs to be discharged. Air leakage is found in the suction pipeline, and the leakage is repaired. If the valve of suction line or discharge line is closed, relevant valve shall be opened. If the suction height is too high, recalculate the installation height. The suction line is too small or blocked.

Q: How to resist cavitation in centrifugal pump?
A: Improve the structure design from the suction to the impeller of the centrifugal pump;Adopt double stage suction impeller and use anti-cavitation material;

Q:What is the function of rubber ball in water ring vacuum pump?
A: Rubber ball in water ring vacuum pump, the correct name is called rubber ball valve. Its role is to eliminate the pump equipment in the operation process of the phenomenon of over compression or insufficient compression.

Q:How long is warranty?
A:One year formain construction warranty.

Q:How can I pay for my items? What is the payment you can provide
A:Usually by T/T, 30%-50% deposit payment once PI/Contract confirmed, then the remaining balance will be paid after inspection and before shipment via T/T or L/C;

welcome client from home and abroad to contact us for future cooperation.
Detail size drawing and install drawing please contact our sales in charge to get;

key:nash/simense/refurish/vacuum pumps/HangZhou CHINAMFG pump/

Oil or Not: Oil Free
Structure: Rotary Vacuum Pump
Exhauster Method: Positive Displacement Pump
Vacuum Degree: High Vacuum
Work Function: Mainsuction Pump
Working Conditions: Wet
US$ 0/Piece
1 Piece(Min.Order)


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

How Do Roots Vacuum Pumps Differ from Other Types of Vacuum Pumps?

Roots vacuum pumps, also known as Roots blowers or rotary lobe pumps, have distinct characteristics that set them apart from other types of vacuum pumps. Here’s a detailed explanation of the differences between Roots vacuum pumps and other common types of vacuum pumps:

1. Operating Principle: Roots vacuum pumps operate based on the principle of positive displacement. They use synchronized rotating lobes to trap and compress gas, resulting in the creation of a pressure differential that generates vacuum. Other types of vacuum pumps, such as rotary vane pumps, liquid ring pumps, and diffusion pumps, operate on different principles, such as rotor rotation, liquid sealing, or molecular diffusion.

2. Pumping Mechanism: Roots vacuum pumps are non-contacting pumps, meaning there is no physical contact between the lobes or between the lobes and the housing. This eliminates the need for lubrication within the pump and reduces the risk of contamination or oil vapor backstreaming into the vacuum system. In contrast, many other types of vacuum pumps rely on a sealing mechanism that involves physical contact between moving parts, requiring lubrication to maintain proper operation.

3. Pumping Speed: Roots vacuum pumps are known for their high pumping speed, which refers to the rate at which they can remove gas from a vacuum system. They excel at handling large volumes of gas efficiently. This makes Roots vacuum pumps suitable for applications that require rapid evacuation or continuous extraction of gases. Other types of vacuum pumps may have different pumping speeds depending on their design and intended applications.

4. Vacuum Level: While Roots vacuum pumps are efficient at generating rough vacuum levels, typically in the range of 10 to 1,000 mbar, they are not capable of achieving high vacuum levels on their own. They are often used in conjunction with other vacuum pumps, such as rotary vane pumps or diffusion pumps, in hybrid or combination pumping systems to achieve higher vacuum levels. In contrast, other types of vacuum pumps, such as turbomolecular pumps or cryogenic pumps, are designed specifically for achieving and maintaining high vacuum levels.

5. Gas Handling: Roots vacuum pumps have a large gas handling capacity and can handle a wide range of gases, including clean air, corrosive gases, and vapors. Their robust construction and ability to handle gas with particulates or liquids make them suitable for applications in various industries. Other types of vacuum pumps may have limitations in terms of the types of gases they can handle or may require additional equipment or treatments to handle specific gases.

6. Applications: Roots vacuum pumps find applications in a wide range of industrial processes, including chemical processing, pharmaceuticals, food processing, environmental technology, semiconductor manufacturing, packaging, and research laboratories. Other types of vacuum pumps, such as turbomolecular pumps, cryogenic pumps, or scroll pumps, may be more commonly used in specific industries or applications where their unique operating principles or capabilities are advantageous.

It’s important to note that the selection of a vacuum pump depends on various factors, including the desired vacuum level, gas composition, pumping speed requirements, application-specific considerations, and budget constraints. Different types of vacuum pumps offer distinct advantages and are chosen based on the specific requirements of the application.

In summary, Roots vacuum pumps differ from other types of vacuum pumps in terms of their operating principle, pumping mechanism, pumping speed, vacuum level capabilities, gas handling capacity, and applications. Understanding these differences helps in selecting the most suitable vacuum pump for a particular industrial process or application.

China Good quality Jzj2b Roots Vacuum Pump with Compressor, Screwpumps, Oil-Less Piston, Rotaryvane2be2sk2BV   vacuum pump brakesChina Good quality Jzj2b Roots Vacuum Pump with Compressor, Screwpumps, Oil-Less Piston, Rotaryvane2be2sk2BV   vacuum pump brakes
editor by CX 2023-10-26