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  • Worm Gear Operated Wafer Butterfly Valve
  • Worm Gear Operated Wafer Butterfly Valve
  • Worm Gear Operated Wafer Butterfly Valve
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    Worm Gear Operated Wafer Butterfly Valve

    Size Range:2~40"(DN50~DN1000)

    Pressure: PN10, PN16, Class150

    Body Materials: Cast Iron, Ductile Iron, WCB , Stainless Steel, Bronze

    Seat Materials: NBR, EPDM, VITON, PTFE

    Disc Materials: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958

    Stem Materials: SS416, SS304, SS316

    End Connection: Wafer

    Operate: Worm gear, Pneumatic, Electric-Motorized

    Disc type: With-pin, One stem no-pin, Double stem no-pin


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

    What is a worm-gear flange butterfly valve?

    The worm-gear flange butterfly valve (also known as the worm-gear flange reverse valve) generally adopts triple eccentric multi-level metal hard seal structure. It is widely used in metallurgy, electric power, petrochemical industry, water supply and drainage and municipal construction and other industrial pipelines with medium temperature ≤425℃, for regulating flow and truncating fluid use. The valve adopts triple eccentric structure. The seat and disc sealing surface are all made of different hardness and stainless steel. It has good corrosion resistance and long service life. The commonly used connection methods of worm-gear flange butterfly valves are divided into flange type worm-gear stainless steel butterfly valve and clamp type stainless steel butterfly valve.

    Advantages of the worm-gear flange butterfly valve:
    1.Valve body wall thickness meets standard
    The valve body wall thickness meets the requirements of GB 26640, the thickness is up to standard, and the pressure resistance is guaranteed.
    2.QT450-10 material
    The body and disc are all made of QT450-10 material, the spheroidization rate more than 3 levels. The tensile strength is 450Mpa, and the elongation is above 10%.
    3.Good seat sealing, long service life
    The seat adopts imported rubber material, which contains more than 50% rubber; the elongation rate is greater than 350%, the valve seal is reliable and has long service life.
    4.Soft back with wide seat
    Soft back wide edge seats are conducive to the installation of valve. In the pipeline, the contact surface is wide and the sealing performance is reliable. It is easy to remove and replace.
    5.No pin structure to avoid corrosion
    The disc and shaft are of no pin construction, which avoids leakage caused by installation and accelerated corrosion caused by coating damage.

    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 process

    quality control process quality control process quality control process

    Parameters

    Worm Gear Operated Wafer Butterfly Valve

    SIZE A B C L ANSI 150B DIN PN 10 DIN PN 16 JIS 10K ISO  5211 Top Flange
    mm in øK N-ød øK N-ød øK N-ød øK N-ød øD øD1 N-øG
    40 1.5″ 67 141 32 33 98.5 4-ø16 110 4-ø18 110 4-ø18 105 4-ø19 65 50 4-ø8 F05
    50 2″ 67 141 32 43 120.6 4-ø19 125 4-ø18 125 4-ø18 120 4-ø19 65 50 4-ø8 F05
    65 2½” 75 151 32 46 139.7 4-ø19 145 4-ø18 145 4-ø18 140 4-ø19 65 50 4-ø8 F05
    80 3″ 95 160 32 46 152.4 4-ø19 160 8-ø18 160 8-ø18 150 8-ø19 65 50 4-ø8 F05
    100 4″ 111 180 32 52 190.5 8-ø19 180 8-ø18 180 8-ø18 175 8-ø19 90 70 4-ø10 F07
    125 5″ 129 193 32 56 215.9 8-ø22.4 210 8-ø18 210 8-ø18 210 8-ø23 90 70 4-ø10 F07
    150 6″ 142 207 32 56 241.3 8-ø22.4 240 8-ø22 240 8-ø22 240 8-ø23 90 70 4-ø10 F07
    200 8″ 170 240 45 60 298.4 8-ø22.4 295 8-ø22 295 12-ø22 290 12-ø23 125 102 4-ø12 F10
    250 10″ 206 270 45 68 361.9 12-ø25.4 350 12-ø22 355 12-ø26 355 12-ø25 125 102 4-ø12 F10
    300 12″ 238 316 45 78 431.8 12-ø25.4 400 12-ø22 410 12-ø26 400 16-ø25 125 102 4-ø12 F10
    350 14″ 267 368 45 78 476.2 12-ø28.4 460 16-ø22 470 16-ø26 445 16-ø25 125 102 4-ø12 F10
    400 16″ 298 400 51 86 539.7 16-ø28.4 515 12-ø26 525 16-ø30 510 16-ø27 175 140 4-ø18 F14
    450 18″ 318 422 51 105 577.8 16-ø31.8 565 20-ø26 585 20-ø30 565 20-ø27 175 140 4-ø18 F14
    500 20″ 349 479 57 130 635 20-ø31.8 620 20-ø26 650 20-ø33 620 20-ø27 175 140 4-ø18 F14
    600 24″ 410 562 70 152 749.3 20-ø35.1 725 20-ø30 770 20-ø36 730 24-ø33 210 165 4-ø22 F16

     

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