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2BV Series Water Ring Vacuum Pump
2BV Series Water Ring Vacuum Pump
2BE Series Water Ring Vacuum Pump
2BE Series Water Ring Vacuum Pump
2BW Water Ring Vacuum Pump Closed-Loop Unit
2BW Water Ring Vacuum Pump Closed-Loop Unit
FORYOU Air-Cooled Self-Circulating Water-Ring Vacuum Pump Unit
FORYOU Air-Cooled Self-Circulating Water-Ring Vacuum Pump Unit
High-Speed roots Vacuum Pump Operation
High-Speed roots Vacuum Pump Operation
FORYOU Air-Cooled roots Vacuum Pump
FORYOU Air-Cooled roots Vacuum Pump
Industrial Screw Vacuum Pump Unit
Industrial Screw Vacuum Pump Unit
Roots water ring vacuum unit
Roots water ring vacuum unit
Dry Screw Vacuum Pump 
Dry Screw Vacuum Pump 
Industrial Vacuum Pumping Solutions & Systems
Industrial Vacuum Pumping Solutions & Systems
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China Screw Water Ring Vacuum Pump Unit - Leading Suppliers and Factory for Enhanced Vacuum Solutions

The Screw Water Ring Vacuum Pump Unit is an advanced vacuum solution designed for optimal efficiency. This vacuum unit integrates a Screw pump as its primary pump along with 2BV or 2BE water ring pumps functioning as pre-stage pumps. The water ring pumps are essential for generating the necessary pre-vacuum, ensuring that the Screw pump operates at peak performance. With each additional Screw pump stage connected, the vacuum unit's ultimate vacuum level can increase significantly, achieving a higher order of magnitude. As a leading manufacturer in China, we pride ourselves on being a reliable supplier and factory of high-quality vacuum pump systems that cater to diverse industrial needs
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    Product Characteristics

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    Product Parameters

    Product Details

    Unit model

    Pump model

    Draw rate

    L/S

    Absolute vacuum

    Pa

    Total power

    KW

    Main pump

    Pre-stage pump

    JZJ2B30-1

    ZJP30

    2BV5110

    30

    267

    5.5

    JZJ2B70-1

    ZJP70

    2BV5111

    70

    7

    JZJ2B150-1

    ZJP150

    2BV5131

    150

    14

    JZJ2B300-2

    ZJP300

    2BV5161

    300

    19

    JZJ2B300-1

    ZJP300

    2BE1 202

    300

    26

    JZJ2B600-2

    ZJP600

    2BE1 203

    600

    44.5

    JZJ2B600-1

    ZJP600

    2BE1 252

    600

    —

    52.5

    JZJ2B70-2.1

    ZJP70

    ZJP30/2BV5110

    70

    25

    7

    JZJ2B150-2.1

    ZJP150

    ZJP70/2BV5111

    150

    10

    JZJ2B300-2.1

    ZJP300

    ZJP150/2BV5131

    300

    18

    JZJ2B600-2.2

    ZJP600

    ZPJ300/2BV5161

    600

    26.5

    JZJ2B1200-2.2

    ZJ1200

    ZJP600/2BE1203

    1200

    55.5

    JZJ2B1200-2.1

    ZJ1200

    ZJP600/2BE1252

    1200

    63.5

    JZJ2B2500-2.1

    ZJ2500

    ZJ1200/2BE1303

    2500

    133

    JZJ2B5000-4.1

    ZJ5000

    ZJ1200/2BE1303

    5000

    176

    JZJ2B70-2.1.1

    ZJP70

    ZJP30/ZJP30/2BV5110

    70

    0.5

    8.5

    JZJ2B150-2.2.1

    ZJP150

    ZJP70/ZJP30/2BV5110

    150

    10

    JZJ2B300-2.2.1

    ZJP300

    ZJP150/ZJP70/2BV5111

    300

    14

    JZJ2B600-2.2.1

    ZJP600

    ZJP300/ZJP150/2BV5131

    600

    23.5

    JZJ2B1200-2.2.2

    ZJ1200

    ZJP600/ZJP300/2BV5161

    1200

    37.5

    JZJ2B1200-2.2.1

    ZJ1200

    ZJP600/ZJP300/2BE1202

    1200

    51.5

    JZJ2B2500-2.2.1

    ZJ2500

    ZJ1200/ZJP600/2BE1252

    2500

    85.5

    JZJ2B2500-4.2.1

    ZJ2500

    ZJP600/ZJP300/2BE1202

    2500

    55.5

    JZJ2B5000-4.2.1

    ZJ5000

    ZJ1200/ZJP600/2BE1252

    5000

    118.5
    ⓘ Important Notes
    • 1 The series in the table represents the recommended standards. Due to the varying working conditions in actual production applications, the gas intake and pressure will undergo many changes. Therefore, during the selection process, calculations or reference to the usage of existing equipment should be conducted based on the actual vacuum extraction process, gas release process, condensation of non-volatile gases, time variations of the intake pressure, etc.
    • 2 The technical indicators of the single pump are detailed in the respective pump parameter tables.
    • 3 The maximum intake pressure refers to the highest pressure that the main pump can start at. If it operates for a long time at a pressure higher than this, it will cause the main pump to overload.
    • 4 If the vacuum pump motor, electrical contact vacuum gauge/pressure transmitter, and electrical control cabinet need to be explosion-proof, please specify during the order. The 2BV5 water ring vacuum pump in the table should be correspondingly changed to the 2BV6 series.
    ❓ Frequently Asked Questions
    Q What is the JZJ2B series vacuum unit and how does it work?
    The JZJ2B series is a roots-water ring vacuum unit that combines a Roots pump (main pump) with a water ring vacuum pump (pre-stage pump). The Roots pump provides high pumping speed, while the water ring pump maintains the backing pressure, enabling the system to achieve deep vacuum levels efficiently across a wide pressure range.
    Q What absolute vacuum levels can the JZJ2B series units achieve?
    Depending on the configuration, the JZJ2B series units can achieve absolute vacuum levels of 267 Pa (single-stage pre-pump), 25 Pa (two-stage pre-pump configuration), and as low as 0.5 Pa for three-stage pre-pump configurations, making them suitable for a wide range of industrial vacuum applications.
    Q How should I select the correct unit model for my application?
    Selection should be based on your actual process requirements, including the required pumping speed (L/S), the target vacuum level (Pa), gas release characteristics, condensation behavior of non-volatile gases, and the time variation of intake pressure. It is recommended to perform detailed calculations or consult with an engineer based on your specific vacuum extraction process rather than relying solely on the standard table values.
    Q What happens if the main pump operates above the maximum intake pressure for extended periods?
    Operating the main pump continuously at pressures higher than the specified maximum intake pressure will cause the pump motor to overload. This can lead to overheating, increased wear, potential motor burnout, and reduced service life. Always ensure the system operates within the rated pressure range to maintain safe and efficient performance.
    Q Can the JZJ2B vacuum units be configured for explosion-proof environments?
    Yes. If the application requires explosion-proof components — including the vacuum pump motor, electrical contact vacuum gauge, pressure transmitter, and electrical control cabinet — this must be specified at the time of ordering. In such cases, the 2BV5 water ring vacuum pumps listed in the standard table will be replaced with the equivalent 2BV6 explosion-proof series.
    Q Where can I find detailed technical parameters for individual pumps in the unit?
    The technical specifications for each individual pump component — including the ZJP Roots pumps and 2BV/2BE water ring vacuum pumps — are provided in their respective pump parameter tables. Please refer to the corresponding product datasheets or contact our technical team for detailed performance curves, dimensional drawings, and operating specifications.

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