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  • China · Xinhui Valve Co., Ltd.

    Phone: 0577-57760066 57760077
    Fax: 0577-57760099
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    Address: Xiaojingyu Industrial Zone, Qiaoxia Town, Yongjia County, Zhejiang Province
    SD343H Telescopic Butterfly Valve
    SD343H Telescopic Butterfly Valve

    SD343H Telescopic Butterfly Valve Overview:

    The body and seat of the SD343H telescopic butterfly valve are conjoined components, and the sealing surface layer of the valve seat is overlay-welded with a temperature-resistant and corrosion-resistant alloy material. The multi-layer soft stack type seal ring is fixed on the valve plate. Compared with the traditional butterfly valve, this type of butterfly valve has high temperature resistance, light operation, no friction during opening and closing, and closes as the torque of the transmission mechanism increases to compensate the seal when closing, improving the butterfly valve. Its sealing performance and extended service life are suitable for high temperature, high pressure, corrosion and abrasion resistance industries.


    Structural features of SD343H telescopic butterfly valve :

    1. Novel and reasonable design, unique structure, light weight, convenient operation and fast opening and closing;

    2. In addition to the function of adjusting and shutting off, the telescopic butterfly valve can compensate for the thermal expansion and contraction caused by the temperature difference of the pipeline, and it can also facilitate the installation, replacement and maintenance of the valve;


    Main technical parameters of SD343H telescopic butterfly valve

    Nominal diameter

    mm DN ( mm )

    2000 50 2000

    Nominal pressure

    MPa PN ( MPa )

    0.6

    1.0

    1.6

    test pressure

    Strength test

    0.9

    1.5

    2.4

    Seal test

    0.66

    1.1

    1.76

    Hermetic seal test

    0.6

    0.6

    0.6

    proper temperature

    ≤80

    Applicable medium

    Air, water, steam, gas, oil, etc.

    Drive form

    Manual, worm and worm drive, pneumatic drive, electric drive.


    Material of SD343H Telescopic Butterfly Valve :


    Part Name

    material

    Valve body

    Cast iron, cast steel, stainless steel, chromium-molybdenum steel, alloy steel

    Butterfly

    Cast steel, alloy steel, stainless steel, chrome molybdenum steel

    Sealing ring

    Rubber, Teflon, Polyester, Stainless Steel

    Valve stem

    、不锈钢、铬钼钢 2Cr13 , stainless steel, chrome molybdenum steel

    flexible tube

    Cast iron, cast steel, stainless steel, chrome molybdenum steel

    filler

    Flexible graphite

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