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    VSSJA-2(B2F) Double Flange Limited Expansion Joint

    Body : QT400-15、Q235A、ZG230-450、20

    Gasket : NBR

    Gland : QT400-15、Q235A、ZG230-450、20

    Limited short pipe : Q235A、20、16Mn


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    Tel: +86-13849184495
    Fax: +86-371-55883235
    E-mail: weisidun@wsdvalve.com
    Address: ZhengZhou,HeNan,China.

    What is a VSSJA-2(B2F) double flange limited expansion joint?

    The double flange limited expansion joint is made of metal casting or welding, and the loose part is sealed with trapezoidal ring rubber. Under the action of cover and bolt, the compression elastic deformation principle of rubber is used to force the sealing ring to deform, so that the sleeve expansion body forms a static seal between the outer wall of the expansion pipe. The metal material and sealing ring of the loose expansion joint are selected in strict accordance with the performance and user requirements. The loose expansion joint material outside filled with high strength anti-corrosive paint. The connecting bolt for the loose expansion joint is made of high strength lime steel or stainless steel. Due to there is a certain gap between the expansion of the loose sleeve and the expansion pipe, there is a certain axial and radial displacement. Therefore, the loose expansion joint can effectively compensate and reduce the thrust of the blind plate in the pipeline, which facilitates the installation, maintenance and replacement of pumps and valves.

    Advantages of the VSSJA-2(B2F) double flange limited expansion joint:
    1.Suitable for harsh environment
    It can be used in places with harsh environmental conditions. For example, chemical pipelines or hot water or steam pipes with high temperature. The use of environment and industry is more extensive. Suitable for conveying sea water, fresh water, hot and cold water, drinking water, domestic sewage, crude oil, fuel oil, lubricating oil, refined oil, air, gas, temperature is not higher than 250 degrees of steam and granular powder and other media.
    2.Convenient installation
    Convenient valve installation, can withstand the pipeline axial tension.
    3.Corrosion resistance
    Metal and sealing ring in strict accordance with user requirements to choose different levels of material, each part of the connection bolt is made of carbon steel or stainless steel.
    4.Easy maintenance
    In the pipeline, it can not only effectively transfer the blind plate thrust, but also facilitate the installation, maintenance and replacement of water pump and valve.

    WESDOM  advantages

    1. WESDOM patent products, patent certification
    The product side flanges comply with national, German, Russian, American, British and Japanese standards and other domestic and international standards for multiple pressures, easy connection and wide adaptability, which can reduce the type of purchase and stock.

    2. The product has an independent identity to ensure traceability
    Each wesdom product has its own unique identification number, to ensure product traceability.

    3. Provide material inspection report
    All wesdom products can provide the material inspection report of the main parts.

    4. One-stop service
    One-stop service, we not only supply high quality products, also supply solutions and after-sales service.

    5. WESDOM has a lot of project experience
    We have a lot of project experience in countries such as Pakistan and the Philippines, WESDOM has always been noticed all over the world, and trust comes from quality.

    Quality control proces

    quality control process quality control process quality control process

    Parameters

    Double Flange Limited Expansion Joint

    DN

    External diameter of pipe

    Dw

    Length

    Compensation

     Flange connecting dimension

    Dw

    D0

    L

    L1

    0.6MPa

    1.0MPa

    D

    D1

    n-d。

    D

    D1

    n-d

    65

    76

    76

    340

    105

    50

    160

    130

    4-Φ14

    185

    145

    4-Φ18

    80

    89

    89

    190

    150

    4-Φ18

    200

    160

    8-Φ18

    100

    108

    108

    210

    170

    220

    180

    114

    114

    125

    133

    133

    240

    200

    8-Φ18

    250

    210

    140

    140

    150

    159

    159

    265

    225

    285

    240

    8-Φ22

    168

    168

    200

    219

    219

    320

    280

    340

    295

    250

    273

    273

    370

    335

    12-Φ18

    395

    350

     

    12-Φ22

    300

    325

    325

    350

    130

    65

    440

    395

    12-Φ22

    445

    400

    350

    377

    377

    490

    445

    505

    460

    16-Φ22

    400

    426

    426

    540

    495

     

    16-Φ22

    565

    515

    16-Φ26

    450

    480

    480

    595

    550

    615

    565

    20-Φ26

    500

    530

    530

    645

    600

    20-Φ22

    670

    620

    600

    630

    630

    755

    705

    20-Φ26

    780

    725

    20-Φ30

    700

    720

    720

    860

    810

    24-Φ26

    895

    840

    24-Φ30

    800

    820

    820

    590

    220

    130

    975

    920

    24-Φ30

    1015

    950

    24-Φ33

    900

    920

    920

    1075

    1020

    1115

    1015

    28-Φ33

    1000

    1020

    1020

    1175

    1120

    28-Φ30

    1230

    1160

    28-Φ36

    1200

    1220

    1220

    1405

    1340

    32-Φ33

    1455

    1380

    32-Φ40

    1400

    1420

    1428

    1630

    1560

    36-Φ36

    1675

    1590

    36-Φ42

    1500

    1520

    1528

    1730

    1660

    1600

    1620

    1628

    1830

    1760

    40-Φ36

    1915

    1820

    40-Φ48

    1800

    1820

    1828

    2045

    1970

    44-Φ40

    2115

    2020

    44-Φ48

    2000

    2020

    2030

    2265

    2180

    48-Φ42

    2325

    2230

    48-Φ48

    2200

    2220

    2230

    2475

    2390

    52-Φ42

    2550

    2440

    52-Φ56

    2400

    2420

    2430

    2685

    2600

    56-Φ42

    2760

    2650

    56-Φ56

    2600

    2620

    2630

    600

    240

    140

    2905

    2810

    60-Φ48

    2960

    2850

    60-Φ56

    2800

    300

    2820

    2830

    3115

    3020

    64-Φ48

    3180

    3070

    64-Φ56

    3000

    3020

    3030

    3315

    3220

    68-Φ48

    3405

    3290

    68-Φ60

    3200

    3220

    3230

    3525

    3430

    72-Φ48

    3400

    3420

    3430

    3735

    3640

    76-Φ48

    3600

    3620

    3630

    3970

    3860

    80-Φ56

         

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