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    One Stem No-pin Wafer Butterfly Valve

    Size Range: 2~8"(DN50~DN200)

    Pressure: PN10, PN16, Class125

    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: Manual, Worm gear, Pneumatic, Electric-Motorized

    Disc type: One 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 one stem no-pin wafer butterfly valve?

    The pinless wafer butterfly valve is a kind of valve that is used to open, close and adjust the fluid channel by the reciprocating rotation of the disc type opening and closing parts about 90 degrees. The pinless wafer butterfly valve not only has simple structure, small volume, light weight, low material consumption, small installation size, but also has small driving torque and the operation is simple and fast. It can also have good flow conditioning function and closing sealing characteristics at the same time. It is one of the fastest developing valve varieties in recent decades.

    Advantages of the one stem no-pin wafer butterfly valve:
    1.Beautiful appearance
    The pinless wafer butterfly valve has no obvious pin head protruding, the appearance looks more beautiful.
    2.Convenient maintenance
    Due to the way of transferring torque is different, the pinless wafer butterfly valve will be relatively complex in the structure process, but the maintenance and disassembly of the later period are more convenient.
    3.Good sealing performance
    The overall stem structure, disc and seat sealing spherical contact, so that the torque is greatly reduced. The disc is high precision, polished, and closely matched with seats. It has good sealing performance and has no leakage phenomenon between the stem and the disc.
    4.No leakage
    The disc adopts pinless connection and the bottom is transmitted to make the center position of the disc more accurate. There will be no leakage phenomenon.

    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

    Wafer Butterfly Valve

    SIZE A B C L DIN PN 10 DIN PN 16 ANSI 150B JIS 10K ISO  5211 Top Flange B1XB1 nb
    mm in øK N-ød øK N-ød øK N-ød øK N-ød øD øD1 N-øG
    40 1.5″ 67 141 32 33 110 4-ø18 110 4-ø18 98.5 4-ø16 105 4-ø19 65 50 4-ø8 F05 9X9  
    50 2″ 67 141 32 43 125 4-ø18 125 4-ø18 120.6 4-ø19 120 4-ø19 65 50 4-ø8 F05 9X9  
    65 2½” 75 151 32 46 145 4-ø18 145 4-ø18 139.7 4-ø19 140 4-ø19 65 50 4-ø8 F05 9X9  
    80 3″ 95 160 32 46 160 8-ø18 160 8-ø18 152.4 4-ø19 150 8-ø19 65 50 4-ø8 F05 9X9  
    100 4″ 111 180 32 52 180 8-ø18 180 8-ø18 190.5 8-ø19 175 8-ø19 90 70 4-ø10 F07 11X11  
    125 5″ 129 193 32 56 210 8-ø18 210 8-ø18 215.9 8-ø22.4 210 8-ø23 90 70 4-ø10 F07 14X14  
    150 6″ 142 207 32 56 240 8-ø22 240 8-ø22 241.3 8-ø22.4 240 8-ø23 90 70 4-ø10 F07 14X14  
    200 8″ 170 240 45 60 295 8-ø22 295 12-ø22 298.4 8-ø22.4 290 12-ø23 125 102 4-ø12 F10 17X17  
    250 10″ 206 270 45 68 350 12-ø22 355 12-ø22 361.9 12-ø25.4 355 12-ø25 125 102 4-ø12 F10 22X22  
    300 12″ 238 316 45 78 400 12-ø22 410 12-ø26 431.8 12-ø25.4 400 16-ø25 125 102 4-ø12 F10 22X22  
    350 14″ 267 368 45 78 460 16-ø22 470 16-ø26 476.2 12-ø28.4 445 16-ø25 125 102 4-ø12 F10 22X22  
    400 16″ 298 400 51 86 515 12-ø26 525 16-ø30 539.7 16-ø28.4 510 16-ø27 175 140 4-ø18 F14   1–10
    450 18″ 318 422 51 105 565 20-ø26 585 20-ø30 577.8 16-ø31.8 565 20-ø27 175 140 4-ø18 F14   1–10
    500 20″ 349 479 57 130 620 20-ø26 650 20-ø33 635 20-ø31.8 620 20-ø27 175 140 4-ø18 F14   1–12
    600 24″ 410 562 70 152 725 20-ø30 770 20-ø36 749.3 20-ø35.1 730 24-ø33 210 165 4-ø22 F16   1–16

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