• Valve Categories

    • Knife Gate Valve SG73-A U-Shaped Sealing

    DN

    50~2400 (2"~96")

    PN

    0.1~1.6 (Class150)

    Temperature Range

    -20°C~150°C

    Connection

    Wafer

    Installation Direction

    Bidirectional

    Design

    JB/T8691, API609

    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

    GGG40, CF8, CF8M, 321, 316Ti, 904L, 310S

    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

    Features & Benefits

    SG73-A 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 U-shaped sealing, these series are easily automated for on/off applications.

    Knife Gate Valve SG73-A U-Shaped Sealing

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

    Bearing can be selected for the big size of knife gate valve to reduce the opening & closing torque.

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

    The stem nut is designed for the non-rising stem, and the opening and closing of the valve is not limited by space. It is the connection point between the stem and disc, so its wear resistance and corrosion resistance are the primary factors for material selection.

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

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

    U-shaped valve seat is bidirectionally sealed, and can be replaced in case of damage. 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.

    Both-side O ring design makes the valve suitable for most of flanges in the market, easy to install, and greatly reduces the leakage between the valve and the mating flanges.

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

    Bearing can be selected for the big size of knife gate valve to reduce the opening & closing torque.

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

    The stem nut is designed for the non-rising stem, and the opening and closing of the valve is not limited by space. It is the connection point between the stem and disc, so its wear resistance and corrosion resistance are the primary factors for material selection.

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

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

    U-shaped valve seat is bidirectionally sealed, and can be replaced in case of damage. 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.

    Both-side O ring design makes the valve suitable for most of flanges in the market, easy to install, and greatly reduces the leakage between the valve and the mating flanges.

    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

    Dimensions

    Knife Gate Valve SG73-A U-Shaped Sealing's Drawing

    GB/T 9113 PN10

    DNLDD1D2bfn-Φd
    5048165125991834-18
    65481851451181838-18
    80512001601322038-18
    100512201801562038-18
    125572502101842238-18
    150572852402112238-22
    200603402952662438-22
    2507039535031926312-22
    3007644540037026412-22
    3507650546042926416-22
    4008956551548026416-26
    4508961556553028420-26
    50011467062058228420-26
    60011478072568234520-30
    70012789584079434524-30
    800127101595090136524-33
    90012711151050100138528-33
    100014912301160111238528-36
    120015614551380132844532-39
    140016016751590153048536-42
    160016019151820175052540-48

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