• Valve Categories

    • Welded Ball Valve SK61

    DN

    15~1200 (1/2"~48")

    PN

    1.0~16.0 (Class150~2500)

    Temperature Range

    -46°C~200°C

    Connection

    Welded

    Installation Direction

    Bidirectional

    Design

    GB/T12237, GB/T30818

    Face to Face

    GB/T12221, GB/T19672, ASME B16.10

    Welded

    GB12459, NB/T 20007.9

    Top Connection

    ISO5211, GOST55510

    Inspection

    GB/T26480, ISO5028, API598, JB/T9092

    Body Materials

    20, St37.8, A105, LF2, F304, F316

    Ball Materials

    A105, F304, F316

    Stem Materials

    420, F6a, 304, 316

    Seat Materials

    PTFE, PFA, PPL, PEEK

    Features & Benefits

    SK61 has no external leakage. The processing of the sphere is tracked and detected by advanced detectors for high machining accuracy. The body material is the same as the pipe’s, and there is no uneven stress for the valve. It can be directly buried under the ground, and the length & height of the valve can be adjusted according to the construction and design requirements of the pipeline.

    Welded Ball Valve SK61

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

    As a common packing material, flexible graphite is cheap, easy to replace and can bear high & low temperature.

    It has good sealing performance with high precision grinding. Also, it can be hardened as required.

    The fully welded body is assembled and welded by 6-part forged shell components. The weight of the valve can be reduced by a quarter, much less than 3-piece structure. At the same time, it avoids the leakage of the flanges and bolts. The internal curve of the welded structure is smooth, which maintains the lubricating connection with the pipeline and provides good fluidity for medium.

    Fluoroplastic seat can achieve complete sealing and zero leakage. The seat can be replaced, whose material can be selected according to the medium.

    Viton and metal ring make the valve seat achieve sealing self-adjustment, which can achieve zero leakage between the ball and seat.

    The large-diameter ball valve is supported by the lower stem, so that the ball is better fixed on the valve body. It ensures that there is no deflection in horizontal rotation, and the sealing surfaces of the ball and the valve seat fit each other.

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

    As a common packing material, flexible graphite is cheap, easy to replace and can bear high & low temperature.

    It has good sealing performance with high precision grinding. Also, it can be hardened as required.

    The fully welded body is assembled and welded by 6-part forged shell components. The weight of the valve can be reduced by a quarter, much less than 3-piece structure. At the same time, it avoids the leakage of the flanges and bolts. The internal curve of the welded structure is smooth, which maintains the lubricating connection with the pipeline and provides good fluidity for medium.

    Fluoroplastic seat can achieve complete sealing and zero leakage. The seat can be replaced, whose material can be selected according to the medium.

    Viton and metal ring make the valve seat achieve sealing self-adjustment, which can achieve zero leakage between the ball and seat.

    The large-diameter ball valve is supported by the lower stem, so that the ball is better fixed on the valve body. It ensures that there is no deflection in horizontal rotation, and the sealing surfaces of the ball and the valve seat fit each other.

    Industry Options

    MaterialsCrNiMoTiTemp. Range ℃
    Q235(B)0.30.3---29~425
    A1050.30.40.12-≤450
    LF2-----59~345
    F30418~208~11--≤540 (800)
    F31616~1810~142~3-≤540 (800)

    Dimensions

    Welded Ball Valve SK61's Drawing

    Full bore

    DNLDD2H
    15230 421888
    20230 482590
    25260 603295
    32260 7638100
    40300 8945105
    50300 10857115
    65300 13376135
    80325 15989155
    100325 194108170
    125350219133205
    150400273159205
    200520351219335
    250630425273410
    300650508325460
    350760610377530
    400910680426600
    4501020750480680
    5001060812530830
    6001340960630940
    700152011207201050
    800172012608201140
    900190014009201210
    10002000147010201320

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