Double Flange Expansion Joint

Double Flange Expansion Joint

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  • ● Reasonable Price
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    Product Details

    Technical Parameters

    Product model: VSSJA-2(B2F)

    Nominal diameter: DN400~DN1800

    Nominal pressure: PN10

    Working temperature: 0°C~85°C

    Seal test: 1.25PN

    Shell test: 1.5PN

    Applicable medium: water

    Manufacturing standard: GB/T12465

    Flange connection standard: GB/T9119

    Structure length standard: GB/T12465

    Testing standard: GB/T12465


    Product description

    The main function of the double-flange limit expansion joint is to extend and compress in a certain range in the pipeline, compensate for the displacement caused by the thermal expansion and contraction of the pipeline, and facilitate the installation, disassembly, and maintenance of valves and pumps. If the free expansion and contraction amount of the pipeline exceeds the allowable expansion and contraction amount, the limit studs and nuts can prevent the connection pipe from disengaging. It is suitable for the connection of pipelines with vibration, a certain slope or corners. This series of products are widely used in fluid transportation pipelines in urban water supply and drainage, sewage treatment and other industries.


    Features

    1. Flexible expansion, safety limit, reliable sealing, convenient loading and unloading, the structure is reasonable, simple and compact, and the sealing performance is reliable;

    2. It is not affected by space and can be installed at any position of the pipeline;

    3. Absorb the axial displacement of the pipeline within the allowable range;

    4. The connecting parts are made of stainless steel, and the body is sprayed with epoxy resin, which has a good anti-corrosion effect.


    Main external connection size

    DN DW D K L δ no-do C1 C2 n1-Th*S n1-Th*S3 n-Th
    400 426 580 525 400 32.5 16-Φ30 28 38 4-M20*145 4-M20*280 16-M20
    450 480 640 585 400 32.5 20-Φ30 30 42 5-M20*145 5-M20*280 20-M20
    500 530 715 650 400 32.5 20-Φ33 32 46 5-M20*145 5-M20*280 20-M20
    600 630 840 770 400 32.5 20-Φ36 36 54 5-M20*145 5-M20*280 20-M20
    700 720 910 840 400 32.5 24-Φ36 40 40 6-M20*145 6-M20*280 24-M20
    800 820 2130 950 600 65 24-Φ39 43 42 6-M24*240 6-M24*460 24-M24
    900 920 1930 1050 600 65 28-Φ39 47 44 7-M24*240 7-M24*460 28-M24
    1000 1202 1685 1170 600 65 28-Φ39 50 46 7-M24*240 7-M24*460 28-M24
    1200 1220 1485 1390 600 65 32-Φ48 57 52 8-M24*240 8-M24*460 32-M24
    1400 1420 1225 1590 640 65 36-Φ48 60 58 9-M24*240 9-M24*460 36-M24
    1600 1620 1125 1820 640 65 40-Φ55 65 64 10-M24*240 10-M24*460 40-M24
    1800 1820 1025 2020 640 65 44-Φ55 70 68 11-M24*240 11-M24*460 44-M24