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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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Screw Water Ring Vacuum Pump Unit (1).JPG
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China Suppliers Factory: Screw Water Ring Vacuum Pump Unit for Enhanced Pre-Vacuum and Boosting Performance

The Screw Water Ring Vacuum Pump Unit is an advanced vacuum solution that integrates a high-performance Screw pump as the main pumping mechanism, complemented by 2BV or 2BE water ring pumps that serve as pre-stage pumps. This innovative design ensures that the water ring pump creates the essential pre-vacuum needed for optimal Screw pump operation. As a reliable booster pump, the Screw pump significantly enhances the unit's performance, allowing each additional stage of Screw pumps connected to elevate the ultimate vacuum level by one order of magnitude. As a leading supplier and factory in China, we are committed to providing high-quality vacuum solutions tailored to meet the diverse needs of various industries. Discover the efficiency and reliability of our Screw Water Ring Vacuum Pump Unit today!
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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 does the unit model designation (e.g., JZJ2B300-2) indicate?
    The unit model designation encodes key configuration information about the vacuum pump system. The numerical value (e.g., 300) represents the draw rate in L/S of the main pump, while the suffix indicates the pump stage configuration — for example, "-2" denotes a two-stage system with a main pump and a pre-stage pump combination.
    Q What is the difference between the 267 Pa and 25 Pa absolute vacuum configurations?
    The absolute vacuum level indicates the ultimate vacuum pressure the unit can achieve. Units achieving 267 Pa use a single-stage pre-pump configuration (e.g., 2BV5 water ring pumps), while those achieving 25 Pa incorporate multi-stage Roots pump combinations as pre-stage pumps, providing deeper vacuum capability for more demanding industrial processes.
    Q When should I choose an explosion-proof configuration for this vacuum pump system?
    An explosion-proof configuration is required when the operating environment involves flammable gases, vapors, or dust — such as in chemical plants, petrochemical facilities, or solvent processing operations. In such cases, the vacuum pump motor, electrical contact vacuum gauge or pressure transmitter, and the electrical control cabinet must all be specified as explosion-proof. Additionally, the 2BV5 water ring vacuum pump should be changed to the 2BV6 series.
    Q What happens if the main pump operates continuously above its maximum intake pressure?
    Operating the main pump continuously at pressures exceeding its rated maximum intake pressure will cause the motor to overload. This can lead to overheating, increased mechanical wear, reduced pump lifespan, and potential system failure. It is essential to ensure that the system is properly designed so the main pump starts and runs within its specified pressure range.
    Q How do I select the correct JZJ2B vacuum unit model for my application?
    Selecting the correct model requires a thorough analysis of your actual process conditions, including the required vacuum level, the gas load (draw rate), the nature of the gas (condensable or non-condensable), gas release characteristics, and how intake pressure varies over time. The table provides recommended standard configurations, but calculations based on your specific process parameters — or referencing similar existing installations — are strongly advised before finalizing the selection.
    Q Where can I find detailed technical parameters for the individual pumps listed in the table?
    Detailed technical indicators — including performance curves, operating ranges, dimensional data, and motor specifications — for each individual pump model (such as ZJP30, ZJP70, 2BV5110, 2BE1 series, etc.) are available in their respective pump parameter tables. Please refer to the corresponding product datasheets or contact the manufacturer for complete specifications.

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