• Valve Categories

    • Concentric Flanged Butterfly Valve SB41

    DN

    50~2400 (2"~96")

    PN

    0.6~2.5 (Class150, 5K, 10K)

    Temperature Range

    -20℃~150℃

    Connection

    Flanged

    Installation Direction

    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

    GGG40, WCB, CF8, CF8M, CF3, CF3M

    Disc Materials

    GGG40, GGG40+Hypalon, CF8, CF8M, CF3, CF3M, Duplex Stainless Steel

    Stem Materials

    45#, 410, 416, 431, 304, 316

    Seat Materials

    EPDM, NBR, NR, SBR, Hypalon, Viton, MVQ

    Features & Benefits

    SB41 has a reasonable design, stable structure, good fluid control performance, good sealing of elastic valve seat. Different discs and seat materials can be selected according to different working mediums and temperatures, so that it can withstand corrosion from the medium to extend service life.

    Concentric Flanged Butterfly Valve SB41

    Handle, worm gear, pneumatic actuator, electric actuator are the options.

    It has the function of maintaining the position of the valve stem and can ensure the sealing between the valve stem and the valve body. And the material can be adapted to the medium.

    It can transmit greater torque without pin fixing, ensure the surface of disc is smooth and more resistant to erosion and corrosion, facilitate the replacement of stem or disc, make disassembly and assembly more convenient.

    It has streamlined design, small resistance, large flow. Its material can be selected according to the medium, such as vulcanized rubber or fluoroplastics.

    The one-piece valve body has better pressure bearing capacity, and its material can be selected according to the medium.

    According to the size or norminal pressure, reinforcing rib will be added on the valve body to ensure the body is stable and not easy to deform.

    It has zero leakage sealing and is replaceable & wear resistant. The material can be adapted to the medium. The rubber or resin valve seat is not easy to deform while its sealing is ensured. The valve seat is anti-aging and corrosion-resistant and its streamlined design makes the water flow smoother. 

    Handle, worm gear, pneumatic actuator, electric actuator are the options.

    It has the function of maintaining the position of the valve stem and can ensure the sealing between the valve stem and the valve body. And the material can be adapted to the medium.

    It can transmit greater torque without pin fixing, ensure the surface of disc is smooth and more resistant to erosion and corrosion, facilitate the replacement of stem or disc, make disassembly and assembly more convenient.

    It has streamlined design, small resistance, large flow. Its material can be selected according to the medium, such as vulcanized rubber or fluoroplastics.

    The one-piece valve body has better pressure bearing capacity, and its material can be selected according to the medium.

    According to the size or norminal pressure, reinforcing rib will be added on the valve body to ensure the body is stable and not easy to deform.

    It has zero leakage sealing and is replaceable & wear resistant. The material can be adapted to the medium. The rubber or resin valve seat is not easy to deform while its sealing is ensured. The valve seat is anti-aging and corrosion-resistant and its streamlined design makes the water flow smoother. 

    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
    HT EPDMAging resistance, ozone resistance, corrosion resistance, heat resistance-40150-25~135
    Wear-resistantExcellent traction performance and wear resistance-30100-15~100
    CROil, heat, flame, sunlight, ozone, acid and alkali resistance-30125-15~100
    HypalonOxidation resistance, resistance to winding and cracking-40120-25~110
    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
    PFAExcellent chemical corrosion resistance, low friction coefficient-60200-45~180
    FEP (F46)Chemical resistance, radiation resistance-20150-5~120
    PTFEHeat, cold, acid, alkali, organic solvents resistant-60180-45~150
    RPTFECorrosion resistance, low friction coefficient-60180-45~150
    UPVCCorrosion and pressure resistance, hygiene-30100-15~80
    CPVCCorrosion and pressure resistance, hygiene-30110-15~95
    PVDFAnti aging and chemical resistance-30100-15~70

    Dimensions

    Concentric Flanged Butterfly Valve SB41's Drawing

    GB/T 9113 PN16

    DNLDD1D2bfn-Φd
    501081651251021634-18
    651121851451221838-18
    801142001601382038-18
    1001272201801582038-18
    1251402502101882238-18
    1501402852402122438-22
    20015234029526826312-22
    25016540535532030312-26
    30017846041037830412-26
    35019052047043834416-26
    40021658052549036416-30
    45022264058555040420-30
    50022971565061044420-33
    60026784077072548520-36
    70029291084079540524-36
    800318102595090042524-39
    90033011251050100044528-39
    100041012551170111546528-42
    120047014851390133052532-48

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