API Cast steel Trunnion Type Ball Valve

API Cast steel Trunnion Type Ball Valve

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    Product Details

    Technical Parameters

    Product model: Q347F
    Nominal diameter: DN50~700mm
    Nominal pressure: PN1.6~6.4MPa
    Applicable temperature: -28 ℃~300 ℃
    Applicable media: water, steam, oil, nitric acid, acetic acid
    Drive mode: manual or pneumatic


    Product Design Features

    Serial floating ball valves are mainly applied to natural gas,oil products,chemical engineering,metallurgy,city building,environment protection,pharmacy and food industries, among which the anti-sulphur series are used for long delivery pipes of natural gas that contains hydrogen sulphide medium,a lot of impurity and corrosive substances.


    The main structure features include

    1.Construction of the shell

    The valve bush of the stationary ball valve can be designed to three types:casting construction, forging construction, and full welding construction,according to user's demand or different working condition.And the ball valve of the full welding construction is mainly applied to underground operation.


    2.The unique sealed structure of valve seat

    Pre-ball sealed structure,post-ball sealed structure or pre-post-ball double sealed structures are available for choosing to different pressure,medium properties,and sealing  requirements of the fixed ball valves.


    3.Automatic pressure-relieving structure

    When an abnormal rising of pressure appear in the hollow cavity,the single sealed-structure takes on the function of automatic pressure relieving,whiie the double-sealed structure can finish the job through a attached pressure-reliving  device to the valve body.


    4.Emergent repairman for the sealed structure

    When leak was caused by damage on the valve seat or valve stick,the sealed grease injected through the grease feeding valve can seal the valve at once.


    5.Fire-resistant Structure

    According to the operating condition and user's requirement,ball valve can be designed with a fire-resistant structure up to the fire resistant standards of API607,API 6FA and JB/T6899.Once the soft seal ring is burnt out on fire,the structure can avoid serious leaking of the medium and prevent the fire from scaling up.


    6.Anti-static Structure

    While operating the valve,the friction between the sphere and the base will produce static charges accumulating on the sphere.To avoid static sparkle,the fire-resistant device is designed to derive the accumulated static sparkle,charges from the sphere.


    7.Jam and release

    When the valve is close,the valve seats will stop the effluence,and the precipitate in the can be released through the releasing device.


    8.Locking Device

    A locking structure is designed on the full-open and full-close spots of manual ball valves to avoid abnormal open-and-close produced by miss-operation or unpredictable circuit vibration.On production lines of petroleum and chemicals of flammable mediums,and during the course of outdoor piping,the design is especially advantageous and practical.


    9.Full Drift Diameter Structure and Retractive Diameter Structure

    The two structure series are produced to meet different requirement of users,The passage inside diameter of full diameter ball valves is the same as that of valve pipe,which is convenient for pipe cleaning.The weight of retractive diameter ball valves is relatively lighter,but the fluid resistance is just 1/7 that of stop valves with the same caliber.Therefore,the application prospects of retractive diameter series is much better.



    Main external connection dimensions  PN16

    DN(mm)

    25

    32

    40

    50

    65

    80

    100

    125

    150

    200

    250

    300

    350

    400

    450

    500

    600

    700

    d1

    25

    32

    40

    50

    65

    80

    100

    125

    150

    200

    250

    300

    337

    387

    438

    489

    591

    686

    L

    140

    165

    165

    203

    222

    241

    305

    356

    394

    457

    533

    610

    686

    762

    864

    914

    1067

    1245

    H

    50

    55

    80

    102

    114

    127

    152

    184

    219

    273

    360

    395

    430

    470

    550

    580

    700

    800

     Manual

    H1

    75

    85

    95

    107

    125

    152

    178

    300

    330

    398

    495

    580

    625

    670

    698

    840

    1050

    1100

    E

    -

    -

    -

     

    -

    -

    -

    -

    -

    116

    116

    171

    171

    257

    257

    257

    150

    83

    F

    -

    -

    -

     

    -

    -

    -

    -

    -

    350

    350

    400

    420

    400

    420

    400

    410

    650

    W

    160

    160

    230

    230

    400

    400

    650

    1050

    1050

    600

    600

    800

    800

    800

    800

    800

    800

    800

    WT(kg)

    4.5

    5.7

    7.0

    12

    16

    22

    35

    58

    74

    205

    322

    460

    576

    864

    1280

    1600

    1600

    4500

    Electric

    H2

    -

    -

    -

     

    -

    -

    -

    -

    554

    600

    652

    760

    770

    830

    -

    940

    940

    1115

    L1

    -

    -

    -

     

    -

    -

    -

    -

    235

    235

    235

    259

    400

    400

    -

    410

    410

    410

    Pneumatic

    H3

    215

    240

    264

    274

    379

    389

    479

    552

    666

    736

    926

    1059

    1127

    1393

    1468

    1538

    1538

    1450

    L2

    200

    270

    270

    270

    405

    405

    576

    576

    776

    776

    776

    1060

    1060

    1360

    1360

    1360

    1360

    2840