• Valve Categories

    • Knife Gate Valve SG73-B O-Shaped Sealing

    DN

    50~2400 (2"~96")

    PN

    0.1~4.0 (Class300)

    Temperature Range

    -46°C~850°C

    Connection

    Wafer

    Installation Direction

    Unidirectional, Bidirectional

    Design

    JB/T8691

    Face to Face

    GB/T15188

    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, C5,WC6, CF8, CF8M, 321, 316Ti, 904L, 310S, Duplex Stainless Steel

    Disc Materials

    304, 316, 304L, 316L, 321, 316Ti, 904L, 310S, Duplex Stainless Steel

    Stem Materials

    420, 431, 304, 316, 316L, 321

    Seat Materials

    EPDM, NBR, NR, SBR, PTFE, Viton, MVQ, 420, Stellite alloy, Polyurethane, Ceramics

    Features & Benefits

    SG73-B is one-piece structure, and its economical semi-lug cast body design offers durable performance in applications ranging from general purpose to severe mediums. Available with replaceable O-shaped sealing by unidirection or bidirection, these series are easily automated for on/off applications.

    Knife Gate Valve SG73-B O-Shaped Sealing

    The ductile iron handwheel is more durable. The right size makes the handwheel rotate more labor-saving.

    Platform under actuator can be customized according to requirements., which allows to install electric/pneumatic actuators by different standards.

    The stem bushing acts as a support for the handwheel and drives the stem to rotate through the internal thread to lift the disc. Bronze and steel can be selected by requirements.

    Different materials can be selected according to the working conditions. Hardness and corrosion resistance are the primary considerations.

    The yoke is composed of thickened steel plates, which is enough to support the disc, platform, and actuator.

    Rubber and nylon packing material can effectively enhance the sealing between the gland and disc. Different materials can be selected according to the medium.

    The body is one-piece structure with wafer or lug style. Polyester is coated for excellent corrosion resistance. Shorter length greatly reduces production and maintenance costs of the valve. Different materials can be selected according to the working condition.

    The polishing and chamfering design of the disc does not damage the seat. Different materials can be selected according to the medium.

    O-shaped valve seat is unidirectionally or bidirectionally sealed, and can be replaced in case of damage. Different materials can be selected according to the medium.

    The ductile iron handwheel is more durable. The right size makes the handwheel rotate more labor-saving.

    Platform under actuator can be customized according to requirements., which allows to install electric/pneumatic actuators by different standards.

    The stem bushing acts as a support for the handwheel and drives the stem to rotate through the internal thread to lift the disc. Bronze and steel can be selected by requirements.

    Different materials can be selected according to the working conditions. Hardness and corrosion resistance are the primary considerations.

    The yoke is composed of thickened steel plates, which is enough to support the disc, platform, and actuator.

    Rubber and nylon packing material can effectively enhance the sealing between the gland and disc. Different materials can be selected according to the medium.

    The body is one-piece structure with wafer or lug style. Polyester is coated for excellent corrosion resistance. Shorter length greatly reduces production and maintenance costs of the valve. Different materials can be selected according to the working condition.

    The polishing and chamfering design of the disc does not damage the seat. Different materials can be selected according to the medium.

    O-shaped valve seat is unidirectionally or bidirectionally sealed, and can be replaced in case of damage. Different materials can be selected according to the medium.

    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
    PTFEHeat, cold, acid, alkali, organic solvents resistant-60180-45~150
    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

    Knife Gate Valve SG73-B O-Shaped Sealing's Drawing

    GB/T 9113 PN10

    DNLDD1D2bfn-Φd
    5048165125991834-18
    65481851451181838-18
    80512001601322038-18
    100512201801562038-18
    125572502101842238-18
    150572852402112238-22
    200703402952662438-22
    2507039535031926312-22
    3007644540037026412-22
    3507650546042926416-22
    4008956551548026416-26
    4508961556553028420-26
    50011467062058228420-26
    60011478072568234520-30
    70012789584079434524-30
    800127101595090136524-33
    90012711151050100138528-33
    100014912301160111238528-36
    120015614551380132844532-39
    140017116751590153048536-42
    160019819151820175052540-48

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