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    JIS Worm Gear Operated Wafer Butterfly Valve

    Size Range:2~24"(DN50~DN600)

    Pressure: 5K,10K,16K

    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 shaft without pin, Double shaft without pin


    Categories

    Tel: +86-18539246853
    Fax: +86-371-55883235
    E-mail: weisidun@wsdvalve.com
    Address: ZhengZhou,HeNan,China.

    Features:

    Single Eccentric Disc-Shaft

    Anti-Blow Out Stem

    Bi-Directional

    Fire safe Design

    Low Friction Body Seat

    Zero Leakage

    Inpection and Test :

    Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.

    Seat Test: 1.1 times the working pressure with water.

    Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.

    Special Test: On request, any other test can be carried out according to special instruction by client.

    Parameters

    WESDOM Group

     

    SIZE A B C L JIS 10K Top Flange
    mm in øK N-ød
    40 1.5″ 67 141 32 33 105 4-ø19 F05
    50 2″ 67 141 32 43 120 4-ø19 F05
    65 2½” 75 151 32 46 140 4-ø19 F05
    80 3″ 95 160 32 46 150 8-ø19 F05
    100 4″ 111 180 32 52 175 8-ø19 F07
    125 5″ 129 193 32 56 210 8-ø23 F07
    150 6″ 142 207 32 56 240 8-ø23 F07
    200 8″ 170 240 45 60 290 12-ø23 F10
    250 10″ 206 270 45 68 355 12-ø25 F10
    300 12″ 238 316 45 78 400 16-ø25 F10
    350 14″ 267 368 45 78 445 16-ø25 F10
    400 16″ 298 400 51 86 510 16-ø27 F14
    450 18″ 318 422 51 105 565 20-ø27 F14
    500 20″ 349 479 57 130 620 20-ø27 F14
    600 24″ 410 562 70 152 730 24-ø33 F16

     

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