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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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Screw Water Ring Vacuum Pump Unit - High-Efficiency Solution from China Suppliers and Factory

The Screw water ring vacuum pump unit is a highly efficient vacuum solution designed for various industrial applications. It features a robust Screw pump as the primary pump, complemented by either 2BV or 2BE water ring pumps functioning as pre-stage pumps. The water ring pump plays a crucial role in achieving the necessary pre-vacuum for the Screw pump, while the Screw pump acts as a powerful booster. By connecting additional stages of Screw pumps, the ultimate vacuum level of the unit can increase significantly, enhancing overall performance. As a leading manufacturer and supplier in China, our factory is dedicated to providing high-quality vacuum systems that meet industry standards and exceed customer expectations
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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
    📋 Explanation & 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 (FAQ)
    Q What does the JZJ2B series vacuum unit consist of, and how does it work?
    A The JZJ2B series vacuum unit is a combined vacuum system consisting of a main pump (such as a Roots pump, e.g., ZJP or ZJ series) and one or more pre-stage pumps (such as water ring vacuum pumps like 2BV5 or 2BE1 series). The Roots pump provides high pumping speed while the pre-stage pump maintains the necessary backing pressure, together achieving deep vacuum levels down to 0.5 Pa absolute vacuum.
    Q How should I select the correct JZJ2B unit model for my application?
    A Selection should be based on your actual vacuum process requirements, including the required draw rate (L/S), the target absolute vacuum level (Pa), and the total power budget (KW). Additionally, consider the gas intake characteristics, gas release process, non-volatile gas condensation, and time variations of intake pressure. Consulting the parameter tables for individual pumps is also recommended for precise selection.
    Q What is the maximum achievable absolute vacuum level for the JZJ2B series?
    A The JZJ2B series covers three main absolute vacuum levels: 267 Pa for single-stage pre-pump configurations, 25 Pa for two-stage pre-pump configurations, and as low as 0.5 Pa for three-stage configurations. The achievable vacuum depends on the number of pumping stages and the specific model selected.
    Q What happens if the main pump operates above the maximum intake pressure for an extended period?
    A Operating the main pump continuously above its maximum intake pressure will cause the main pump motor to overload, potentially leading to motor damage, increased energy consumption, overheating, and reduced service life. It is critical to ensure the pre-stage pump brings the system pressure within the allowable range before and during main pump operation.
    Q Can the JZJ2B vacuum units be configured for explosion-proof environments?
    A Yes. If the application requires explosion-proof specifications, the vacuum pump motor, electrical contact vacuum gauge or pressure transmitter, and the electrical control cabinet can all be supplied in explosion-proof versions. In such cases, the 2BV5 water ring vacuum pump listed in the standard configuration should be replaced with the corresponding 2BV6 series. Please specify this requirement when placing your order.
    Q What is the difference between the 2BV5 and 2BE1 series pre-stage pumps used in the JZJ2B units?
    A Both the 2BV5 and 2BE1 series are water ring vacuum pumps used as pre-stage (backing) pumps in the JZJ2B units. The 2BV5 series is typically used for smaller pumping capacities and lower power requirements, while the 2BE1 series is applied in larger-capacity units requiring higher pumping speeds and power. The selection depends on the main pump size and the total required draw rate of the system. For explosion-proof requirements, the 2BV5 should be replaced with the 2BV6 series.

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