• Valve Categories

    • Triple Eccentric Wafer Butterfly Valve SB73

    DN

    50~2400 (2"~96")

    PN

    0.6~6.4 (Class150~900)

    Temperature Range

    -59°C~850°C

    Connection

    Wafer

    Installation Direction

    Unidirectional, Bidirectional

    Design

    GB/T12238, BS EN593, API609

    Face to Face

    GB/T12221, BS EN558-1

    Flange Drilling

    GB/T9113, ASME B16.5, EN1092, GOST12820, GOST33259, DIN2501

    Top Connection

    ISO5211, GOST55510

    Inspection

    GB/T13927, ISO5028, API598, JB/T9092

    Body Materials

    WCB, LCC, LC1, WC6, CF8, CF8M, 321, 316Ti, 904L, 310S

    Disc Materials

    WCB, LCC, LC1, WC6, CF8, CF8M, 321, 316Ti, 904L, 310S

    Stem Materials

    420, 17-4PH, 304, 316, 321

    Seat Materials

    304+Graphite, 316+Graphite, EPDM, NBR, PTFE, Viton, Metal to metal

    Features & Benefits

    SB73 has a special structure. When the valve is opened and closed, the frictional resistance between the seat and the disc is small, and the opening and closing are labor-saving and flexible. The disc’s sealing ring has a multi-level structure, good sealing performance and good stability. It is suitable for various industrial fluid systems, high temperature and high pressure working conditions.

    Triple Eccentric Wafer Butterfly Valve SB73

    The stem connection can be customized into different shapes (square or round+key)to connect the drive.

    Yoke under actuator can be selected, which alllows to install gear box, electric or pneumatic actuators accoridng to different standards.

    PTFE (or reinforced graphite) packing material can effectively enhance the sealing performance of the stem. In order to reduce the openning & closing toque and make the operation more labor-saving, the bearing can be selected.

    The material of the retainer can be selected. (Remarks: The material of bolts & nuts is the same as the retainer) The retainer can well fix the position of the sealing ring in the disc, ensure the sealing performance, and provide the possibility of repairing and replacing the sealing ring.

    Different materials of disc can be selected. Reinforcing ribs make it more firm and not easy to deform.

    One-piece structure has better pressure bearing capacity. And its material can be selected according to the medium.

    Multi-layer or metal-to-metal sealing ring can be selected. At the same time, different materials can be selected to cope with different working conditions.

    Bearings can be selected to reduce the stem torque. Different materials can be selected according to the working conditions.

    The hard metal-to-metal sealing seat can be applied to high temperature and high pressure medium. The seat can be surfacing welding Stellite or other materials with high wear resistance and corrosion resistance.

    The stem connection can be customized into different shapes (square or round+key)to connect the drive.

    Yoke under actuator can be selected, which alllows to install gear box, electric or pneumatic actuators accoridng to different standards.

    PTFE (or reinforced graphite) packing material can effectively enhance the sealing performance of the stem. In order to reduce the openning & closing toque and make the operation more labor-saving, the bearing can be selected.

    The material of the retainer can be selected. (Remarks: The material of bolts & nuts is the same as the retainer) The retainer can well fix the position of the sealing ring in the disc, ensure the sealing performance, and provide the possibility of repairing and replacing the sealing ring.

    Different materials of disc can be selected. Reinforcing ribs make it more firm and not easy to deform.

    One-piece structure has better pressure bearing capacity. And its material can be selected according to the medium.

    Multi-layer or metal-to-metal sealing ring can be selected. At the same time, different materials can be selected to cope with different working conditions.

    Bearings can be selected to reduce the stem torque. Different materials can be selected according to the working conditions.

    The hard metal-to-metal sealing seat can be applied to high temperature and high pressure medium. The seat can be surfacing welding Stellite or other materials with high wear resistance and corrosion resistance.

    Industry Options

    MaterialsCharacteristicsLow Temp. ℃High Temp. ℃Recommended ℃
    NRHigh elasticity-2085-5~70
    NBROil resistivity-30100-15~90
    EPDMAging resistance, ozone resistance, corrosion resistance-40125-25~110
    FPM (Viton)Chemical and most oils resistance, (except ketones & esters)-20200-5~150
    MVQ (Silicon)High and low temperature resistance, oil, corrosion resistance-55200-30~180
    PTFEHeat, cold, acid, alkali, organic solvents resistant-60180-45~150
    RPTFECorrosion resistance, low friction coefficient-60180-45~150
    Flexibale graphiteCold and hot resistant, corrosion resistant, self-lubricating-196600-60~550
    Ceramic fiberFire, high temperature resistance, low thermal conductivity-1961050-60~950
    Metal to metalHigh temperature, high pressure, wear, corrosion resistanceRefer to the metal material

    Dimensions

    Triple Eccentric Wafer Butterfly Valve SB73's Drawing

    GB/T 9113 PN16

    DNLD1ABn-Φd
    5043951701124-18
    65461051901154-18
    80491152001208-18
    100561402151388-18
    125641502701648-18
    150701652951758-22
    2007118534021512-22
    2507620037024312-26
    3008322040028512-26
    3509225045032016-26
    40010228547535016-30
    45011434050535020-30
    50012734154038020-33
    60015434265043520-36
    70016534371548024-36
    80019034478553024-39
    90020334592059528-39
    100021634697065028-42
    1200254347110077532-48
    1400297348129087036-48

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