Double Eccentric Butterfly Valve

Double Eccentric Butterfly Valve, WCB, Cast Iron, Ductile iron

Double Eccentric Butterfly Valve, WCB, Cast Iron, Ductile iron

Short Description

Model No.: SJ-BFV-01 Hits: 51

Double Eccentric Butterfly Valve, WCB, Cast Iron, Ductile iron
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    Key Specifications / Features

    Features of Ductile iron double eccentric butterfly valve D342X

    1. The bidirectional flow double flange hard seal butterfly valve is a newly designed patented product. It is the first application in China.
    2. With the advance of Short length, small size, simple structure, high precision seal.
    3. Double curve designed sealing surface. Once valve opened, sealing surface serperated, once valve closed, valve sealed. Low opening torque, easy to open and close.
    4. This valve can withstand high back pressure, to avoid medium back-flow, play a role of check valve. Suitable to be installed at the exit of pump.
    5. The sealing surface adopts alloy steel, stainless steel, hard alloy, with the capacity of anti abrasive. Long Service life.
    6. Resistant to high temperature and pressure, anti-corrosion

    7. Manual, Pneumatic, Electric and hydraulic actuator available.
    Butterfly valve

    Main Technical Parameters

    Nominal Diameter

    DN100-2800
    Nominal Pressure 0.6MPa 1.0MPa 1.6MPa 2.5MPa 4.0MPa 6.4MPa 10.0MPa
    Strength Test Pressure 0.9MPa 1.5MPa 2.4MPa 3.8MPa 6.0MPa 9.6MPa 15.0MPa
    Seal Test Pressure 0.66MPa 1.1MPa 1.76MPa 2.75MPa 4.4MPa 7.04MPa 11.0MPa
    Temperature

    -196℃--650℃
    Medium

    Water，Air, Smoke, Steam, Gas, Oil, Weak acid and alkali
    Actuator

    Manual, Electric, Pneumatic, Hydraulic,etc

    Material

    Body Disc Stem Sealing Surface Stem Sleeve Stem Seal Packing

    Q235-A/ 0Cr19Ni9 / QT450-10

    		 Q235-A/ 0Cr19Ni9 / QT450-10 1Cr17Ni2 Stainless Steel SJ-1 / ZCuZn38Mn2Pb2 Graphite

    Pressure And Temperature

    Body & Disc Material

    		 Max Temp. ＜20℃ 100℃ 150℃ 200℃ 250℃
    Nominal Pressure

    Max Working Pressure （MPa）

    QT450-10

    Q235-A

    		 0.25 0.25 0.25 0.225 0.20 0.175
    0.6 0.6 0.6 0.54 0.48 0.42
    1.0 1.0 1.0 0.9 0.8 0.7
    1.6 1.6 1.6 1.44 1.28 1.12
    2.5 2.5 2.5 2.25 2.0 1.75

    Stainless

    Steel

    		 0.25 0.238 0.215 0.201 0.189 0.177
    0.6 0.57 0.52 0.48 0.45 0.42
    1.0 0.95 0.86 0.81 0.76 0.71
    1.6 1.52 1.31 1.29 1.21 1.13
    2.5 2.38 2.15 2.01 1.89 1.77

    Ductile iron double eccentric butterfly valve drawing
    Ductile iron double eccentric butterfly valve dimensions

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