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  • Xinhui Valve Network
  • China · Xinhui Valve Co., Ltd.

    Phone: 0577-57760066 57760077
    Fax: 0577-57760099
    Website: http://ozarkdirt.com
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    Address: Xiaojingyu Industrial Zone, Qiaoxia Town, Yongjia County, Zhejiang Province
    D73H Wafer Type Hard Seal Butterfly Valve
    D73H Wafer Type Hard Seal Butterfly Valve

    Product Overview of D73H Wafer Type Hard Seal Butterfly Valve

    Based on the introduction of foreign advanced technology, our factory adopts precision J-shaped elastic seals and three-eccentric multi-layer metal hard seal structures. It is widely used in metallurgy, power, petrochemical, and water supply and drainage with medium temperature ≤425 ° C. And municipal construction and other industrial pipelines, used to regulate the flow and load fluid. The valve adopts a three-eccentric structure. The sealing surfaces of the valve seat and the disc are made of different hardness and stainless steel. It has good corrosion resistance and long service life. The valve has a two-way sealing function for military mail. The product meets the national GB / T13927-92 valve pressure. Test Standard.

    Features of D73H Wafer Type Hard Seal Butterfly Valve

    1. The valve adopts a three-eccentric sealing structure, with almost no wear on the valve seat and disc, and has an increasingly tight sealing function.

    2. The sealing ring is made of stainless steel. It has the dual advantages of metal hard seal and elastic seal. It has excellent sealing performance at low and high temperatures, corrosion resistance and long service life.

    3. The sealing surface of the plate is made of surfacing welded cobalt-based hard alloy. The sealing surface is resistant to wear and has a long service life.

    4. The large-size butterfly board adopts the frame structure, which has high strength, large flow area and small flow resistance.

    5. The valve has a two-way sealing function. It is not restricted by the flow direction of the medium and is not affected by the space position during installation. It can be installed in any direction.

    6. The driving device can be installed at multiple positions (rotated 90 ° or 180 °), which is convenient for users.

    Third, the main technical parameters of D73H wafer type hard seal butterfly valve


    Nominal pass DN (mm)
    50 ~ 2000
    Nominal pharmacological PN (MPa)
    0.6
    1.0
    1.6
    2.5
    Seal test (MPa)
    0.66
    1.1
    1.76
    2.75
    Strength test (MPa)
    0.9
    1.5
    2.4
    3.75
    proper temperature
    Carbon steel: -29 ℃ ~ 425 ℃ stainless steel: -40 ℃ ~ 650 ℃
    Applicable medium
    Water, air, natural gas, oil and weakly corrosive fluids
    Leak rate
    Comply with GB / T13927-92 standard
    Drive way
    Worm gear drive, electric, pneumatic, hydraulic


    Material of D73H Wafer Type Hard Seal Butterfly Valve


    Part Name
    material
    Valve body
    WCB, alloy steel, stainless steel, QT450-10
    Butterfly
    WCB, alloy steel, stainless steel, QT450-10
    Valve shaft
    2Cr13 stainless steel, alloy steel
    Sealing ring
    Stainless steel ring
    filler
    Flexible graphite


    Five, D73H wafer type hard seal butterfly valve adopts standard


    Manufacturing Standards
    JB / T8527-97
    Flange standard
    GB9113-2000
    Structure length standard
    GB12221-89
    Inspection standards
    GB / T13927-92



    (单位:mm) 六 、 D73H-10 / 16/25 / Wafer type hard seal butterfly valve


    Nominal passage (DN)

    Main dimensions
    Flange size and bolt specifications
    1.0MPa
    1.6MPa
    2.5MPa
    L
    L2
    H
    H1
    D1
    ZD
    A
    D1
    ZD
    A
    D1
    ZD
    A
    50
    43
    265
    350
    112
    125
    4-18
    90 ℃
    125
    4-18
    90 ℃
    125
    4-18
    90 ℃
    65
    46
    265
    370
    115
    145
    4-18
    90 ℃
    145
    4-18
    90 ℃
    145
    4-18
    90 ℃
    80
    49
    320
    380
    120
    160
    8-18
    45 ℃
    160
    8-18
    45 ℃
    160
    8-18
    45 ℃
    100
    56
    320
    420
    138
    180
    8-18
    45 ℃
    180
    8-18
    45 ℃
    190
    8-22
    45 ℃
    125
    64
    340
    460
    164
    210
    8-18
    45 ℃
    210
    8-18
    45 ℃
    220
    8-26
    45 ℃
    150
    70
    390
    555
    175
    240
    8-22
    45 ℃
    240
    8-22
    45 ℃
    250
    8-26

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