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  • VQ341H-16C 輪法蘭固定球直通流道硬密封鑄鋼(WCB)半偏心球閥

    偏心半球閥的特點(diǎn)
    偏心半球閥的特點(diǎn)之一啟閉無磨擦.由于采用偏心結(jié)構(gòu).閥門在關(guān)閉的過程中.球體逐漸靠近閥座,到關(guān)閉位置完全接觸;在開啟時(shí)球體離開密封位置即可完全脫開.開啟扭矩小
    Biased half ball valve characteristic?
    Biased one of half ball valve characteristics opens shuts, because uses the eccentric structure, the valve? in the shuting down process, the spheroid gradually approaches the valve seat, completely contacts to the off-position;

    產(chǎn)品圖:

    可選配件:

    • 氣動(dòng)執(zhí)行器
    • 精小型電動(dòng)執(zhí)行器

    偏心半球閥的特點(diǎn)   

    偏心半球閥的特點(diǎn)之一啟閉無磨擦.由于采用偏心結(jié)構(gòu).閥門在關(guān)閉的過程中.球體逐漸靠近閥座,到關(guān)閉位置完全接齄;在開啟時(shí)球體離開密封位置即可完全脫開.開啟扭矩??;第二個(gè)特點(diǎn)是密封面可實(shí)現(xiàn)自清潔.球體離開閥座時(shí),介質(zhì)可沖去密封面上的積聚物.對(duì)于易結(jié)晶介質(zhì).球體在關(guān)閉過程中可切除介質(zhì)結(jié)晶達(dá)到密封的目的.避免了其它閥門無法開關(guān)的弊端;第三個(gè)特點(diǎn)是密封嚴(yán)緊,球體、閥座是雙金屬.采取不同工藝.密封面可組合成防腐、耐磨等各種類型.滿足不同工況的需求,密封是球面線接觸,靠二維偏心實(shí)現(xiàn)零泄漏。



    Biased half ball valve characteristic

    Biased one of half ball valve characteristics opens shuts, because uses the eccentric structure, the valve in the shuting down process, the spheroid gradually approaches the valve seat, completely contacts to the off-position; When opening the spheroid leaves seals the position the completely to withdraw, opens the torque to be small; The second characteristic is the packing surface may realize from cleanly, when the spheroid leaves the valve seat, the medium may flush away in the packing surface the agglomeration, regarding is easy to Cfystallize the medium, the spheroid may excise the medium crystallization in the closure process to achieve the seal the goal, avoided other valves being unable the switch malpractice;The third character-istic is the seal close, the spheraid, the valve seat are the bimetal, adopts thedifferent craft, the packing surface may the group synthesize the anticarrosion, be wear-resisting and so on each kind of type, satisfies the different operating made the demand, the seal is the spherical surface, depends on two-dimensional biased realizaton zero to divulge.





    主要設(shè)計(jì)參數(shù)Main design variable

    公稱通徑:2”~28”DN50~700

    公稱壓力:Calss 150~60Lb,  PNl.O~lO.OMPa

    閥體材質(zhì):WCB, CF8, CF8M

    球體:硬密封:WCB/CF8CF8M+STL   軟密封:CF8/CF8M

    閥座:硬密封:A105/F304/F316+STL   軟密封:PTFE, PPL

    工作溫度:硬密封:-40℃~425℃   軟密封:-28~250℃


    采用的主要標(biāo)準(zhǔn)Uses main standard

    設(shè)計(jì)制造按API 6D    GB/T12237-1989

    試驗(yàn)和檢驗(yàn)按API 598    JB/T9092-1999

    法蘭尺寸按ANSI B16.5  GB/T9113-2000

    JG/T79-1994  HG20592-1997

    緒構(gòu)長度按HT-2000

     



    工作原理

    偏心半球閥由閥桿帶動(dòng)球體繞旋轉(zhuǎn)中心A轉(zhuǎn)動(dòng)時(shí),球體由B點(diǎn)移動(dòng)C點(diǎn),此時(shí)相對(duì)閥門中心O,從B到C的軌跡為一凸輪狀偏心,向下進(jìn)入閥座使閥門關(guān)閉保持密。該閥由于存上上述凸輪原理.閥門關(guān)閉件從開啟到關(guān)閉過程中,作用在閥座上的力逐漸增加,即關(guān)閉件表面與閥座由完全脫離至接觸,并逐漸增大密封比壓.直至完全密封.反之亦然。這就大大改善了以往球閥的密封狀態(tài)和密封效果,適合高溫高壓及易結(jié)晶磨損嚴(yán)重的場合使用。


    Principle of work

    The biased half ball valve when circles the center of rotation A rotation by the valve lever impetus spheroid, the spheroid by B moves C, this time relative valve center O, from B to the C path is a cam shape bias, enters the valve seat toward un-der to cause the valve closure maintenace seal. This valve because has above cam principle, the valve closure from opens to the closure process in, affects the strength gradually increases on the valve seat, namely the shutting down surface and the valve seat by completely are separated from to the contact, and gradually increases the seal to compare the pressure, until completely seals, vice versa. This greatly im-proved the former bll valve seal condition and the seal effect, suits the high tempera-ture high pressure and is easy to crystallize wears the serious situation use.


    適用場合

    我公司半球閥產(chǎn)品按用途分為:通用閥、管線閥、料漿專用閥、燃?xì)鈱S瞄y、石油化工專用閥、煤粉噴吹專用閥六大系列。在石油、化工、冶金、電力、燃?xì)?、排灰、噴煤粉等行業(yè)是閘閥、截止閥、Y型閥、球閥的更新?lián)Q代產(chǎn)品。


    Suitable situation

    The our company half ball valve product divides into according to the use: the pipeline valve, the material thick liquid special-prupose valve, the fuel gas spe-cial-purpose valve, the petroleum chemical industry special-purpose valve, the pow-dared coal spurt blows the special-purpose valve six big series. In the petroleum, the chemical industry, the metallurgy, the electric power, the fuel gas, the platoon ash,spurt profession and so on powdered coal is the gate valve, the cut-off valve, the Y valve, the ball valve renewal product.


    國標(biāo)連接及外形尺寸Main conn ection and externaldimensions(mm)

    公稱通徑

    (DN)

    1.0MPa(GB9113-2000法蘭Flange)

    公稱通徑

    (DN)

    4.0MPa(GB9113-2000法蘭Flange)

    L

    D

    D1

    D2

    b

    f

    n-d

    H

    L

    D

    D1

    D2

    D3

    f1

    b

    f

    n-d

    H

    50

    124

    165

    125

    99

    20

    2

    4-18

    200

    50

    124

    165

    125

    99

    88

    3

    20

    4

    4-18

    200

    65

    145

    185

    145

    118

    20

    2

    4-18

    215

    65

    145

    185

    145

    118

    110

    3

    22

    4

    8-18

    215

    80

    165

    200

    165

    132

    20

    2

    8-18

    235

    80

    165

    200

    165

    132

    121

    3

    24

    4

    8-18

    235

    100

    200

    220

    180

    156

    22

    2

    8-18

    250

    100

    200

    235

    190

    156

    150

    3.5

    24

    4.5

    8-22

    250

    125

    254

    250

    210

    184

    22

    2

    8-18

    280

    125

    254

    270

    220

    184

    176

    3.5

    26

    4.5

    8-26

    280

    150

    267

    285

    240

    211

    24

    2

    8-22

    300

    150

    267

    300

    250

    211

    204

    3.5

    28

    4.5

    8-26

    300

    200

    292

    40

    295

    266

    24

    2

    8-22

    370

    200

    292

    375

    320

    284

    260

    3.5

    34

    4.5

    12-30

    370

    250

    330

    395

    350

    319

    26

    2

    12-22

    420

    250

    330

    450

    385

    345

    313

    3.5

    38

    4.5

    12-33

    420

    300

    390

    445

    400

    370

    26

    2

    12-22

    450

    300

    390

    515

    450

    409

    364

    3.5

    42

    4.5

    16-33

    450

    350

    468

    505

    460

    429

    26

    2

    16-22

    520

    350

    468

    580

    510

    465

    422

    4

    46

    5

    16-36

    520

    400

    526

    565

    515

    480

    26

    2

    16-26

    570

    400

    526

    660

    585

    535

    474

    4

    50

    5

    16-39

    570

    450

    610

    615

    565

    530

    28

    2

    20-26

    640

    450

    610

    685

    610

    560

    524

    4

    50

    5

    20-39

    640

    500

    610

    670

    620

    582

    28

    2

    20-26

    640

    500

    610

    755

    670

    615

    576

    4

    52

    5

    20-42

    640

    600

    762

    780

    725

    682

    34

    2

    20-30

    720

    600

    762

    890

    795

    735

    675

    4

    60

    5

    20-48

    720

    700

    889

    895

    840

    794

    34

    5

    24-30

    800

    700

     

     

     

     

     

     

     

     

     

     

    公稱通徑

    (DN)

    1.6MPa(GB9113-2000法蘭Flange)

    公稱通徑

    (DN)

    6.4MPa(GB9113-2000法蘭Flange)

    L

    D

    D1

    D2

    b

    f

    n-d

    H

    L

    D

    D1

    D2

    D3

    f1

    b

    f

    n-d

    H

    50

    124

    165

    125

    99

    20

    2

    4-18

    200

    50

    124

    180

    135

    105

    88

    4

    26

    3

    4-23

    200

    65

    145

    185

    145

    118

    20

    2

    4-18

    215

    65

    145

    205

    160

    130

    110

    4

    28

    3

    8-23

    215

    80

    165

    200

    165

    132

    20

    2

    8-18

    235

    80

    165

    215

    170

    140

    121

    4

    30

    3

    8-23

    235

    100

    200

    220

    180

    156

    22

    2

    8-18

    250

    100

    200

    250

    200

    168

    150

    4.5

    32

    3

    8-26

    250

    125

    254

    250

    210

    184

    22

    2

    8-18

    280

    125

    254

    295

    240

    202

    176

    4.5

    36

    3

    8-30

    280

    150

    267

    285

    240

    211

    24

    2

    8-22

    300

    150

    267

    345

    280

    240

    204

    4.5

    38

    3

    8-34

    300

    200

    292

    340

    295

    266

    24

    2

    12-22

    370

    200

    292

    405

    345

    300

    260

    4.5

    44

    3

    12-36

    370

    250

    330

    405

    350

    319

    26

    2

    12-26

    420

    250

    330

    470

    400

    352

    313

    4.5

    48

    3

    12-36

    420

    300

    390

    460

    400

    370

    28

    2

    12-26

    450

    300

    390

    530

    460

    412

    364

    4.5

    54

    4

    16-36

    450

    350

    468

    520

    460

    429

    30

    2

    16-26

    520

    350

    468

    600

    525

    475

    422

    5

    60

    4

    16-41

    520

    400

    526

    580

    515

    480

    32

    2

    16-30

    570

    400

    526

    670

    585

    525

    474

    5

    66

    4

    16-42

    570

    450

    610

    640

    565

    530

    34

    2

    20-30

    640

    450

    -

    -

    -

    -

    -

    -

    -

    -

    -

    -

    500

    610

    715

    620

    582

    36

    2

    20-33

    640

    500

    610

    800

    705

    640

    576

    5

    70

    4

    20-48

    640

    600

    762

    840

    725

    682

    38

    2

    20-36

    720

    600

    762

    930

    820

    750

    675

    6

    76

    5

    20-58

    720

    700

    889

    910

    840

    794

    40

    5

    24-36

    800

    700

     

     

     

     

     

     

     

     

     

     

    公稱通徑

    (DN)

    2.5MPa(GB9113-2000法蘭Flange)

    公稱通徑

    (DN)

    10.0MPa(GB9113-2000法蘭Flange)

    L

    D

    D1

    D2

    b

    f

    n-d

    H

    L

    D

    D1

    D2

    D3

    f1

    b

    f

    n-d

    H

    50

    124

    165

    125

    99

    20

    2

    4-18

    200

    50

    124

    195

    145

    112

    88

    4

    28

    3

    4-26

    200

    65

    145

    185

    145

    118

    22

    2

    8-18

    215

    65

    145

    220

    170

    138

    110

    4

    32

    3

    8-26

    215

    80

    165

    200

    160

    132

    24

    2

    8-18

    235

    80

    165

    230

    180

    148

    121

    4

    34

    3

    8-26

    235

    100

    200

    235

    190

    156

    24

    2

    8-22

    250

    100

    200

    265

    210

    172

    150

    4.5

    38

    3

    8-30

    250

    125

    254

    270

    220

    184

    26

    2

    8-26

    280

    125

    254

    315

    250

    210

    176

    4.5

    42

    3

    8-34

    280

    150

    267

    300

    250

    211

    28

    2

    8-26

    300

    150

    267

    355

    290

    250

    204

    4.5

    46

    3

    12-34

    300

    200

    292

    360

    310

    274

    30

    2

    12-26

    370

    200

    292

    430

    360

    312

    260

    4.5

    54

    3

    12-36

    370

    250

    330

    425

    370

    330

    32

    2

    12-30

    420

    250

    330

    506

    430

    382

    313

    4.5

    60

    3

    12-42

    420

    300

    390

    485

    430

    389

    34

    2

    16-30

    450

    300

    390

    585

    500

    442

    364

    4.5

    70

    4

    16-42

    450

    350

    468

    555

    490

    448

    38

    2

    16-33

    520

    350

    468

    655

    560

    492

    422

    5

    76

    4

    16-48

    520

    400

    526

    620

    550

    503

    40

    2

    16-36

    570

    400

    526

    715

    620

    558

    474

    5

    80

    4

    16-48

    570

    450

    610

    670

    600

    548

    42

    2

    20-36

    640

    450

     

     

     

     

     

     

     

     

     

     

    500

    610

    730

    660

    609

    44

    2

    20-36

    640

    500

     

     

     

     

     

     

     

     

     

     

    600

    762

    845

    770

    720

    46

    2

    20-39

    720

    600

     

     

     

     

     

     

     

     

     

     


    美標(biāo)連接及外形尺寸Main conn ection and externaldimensions(mm) 

    公稱通徑

    (DN)

    150Lb(ANSI B16.5RF法蘭Flange)

    公稱通徑

    (DN)

    4000Lb(ANSI B16.5RF法蘭Flange)

    L

    D

    D1

    D2

    b

    f

    n-d

    H

    L

    D

    D1

    D2

    b

    f

    n-d

    H

    2″

    50

    124

    152

    120.5

    92

    16

    1.6

    4-19

    200

    2″

    50

    124

    165

    127

    92

    25.5

    6.4

    8-19

    200

    21/2″

    65

    145

    178

    139.5

    105

    18

    1.6

    4-19

    215

    21/2″

    65

    145

    190

    149

    105

    29

    6.4

    8-22

    215

    3″

    80

    165

    190

    152.5

    127

    19

    1.6

    4-19

    235

    3″

    80

    165

    210

    168.5

    127

    32

    6.4

    8-22

    235

    4″

    100

    200

    229

    190.5

    157

    24

    1.6

    8-19

    250

    4″

    100

    200

    254

    200

    157

    35

    6.4

    8-26

    250

    5″

    125

    254

    254

    216

    186

    24

    1.6

    8-22

    280

    5″

    125

    254

    279

    235

    186

    38.5

    6.4

    8-26

    280

    6″

    150

    267

    279

    241.5

    216

    26

    1.6

    8-22

    300

    6″

    150

    267

    318

    270

    216

    41.5

    6.4

    12-26

    300

    8″

    200

    292

    343

    298.5

    270

    29

    1.6

    8-22

    370

    8″

    200

    292

    381

    330

    270

    48

    6.4

    12-29

    370

    10″

    250

    330

    406

    362

    324

    31

    1.6

    12-25

    420

    10″

    250

    330

    445

    387.5

    324

    54

    6.4

    16-32

    420

    12″

    300

    390

    483

    432

    381

    32

    1.6

    12-25

    450

    12″

    300

    390

    521

    451

    381

    57.5

    6.4

    16-35

    450

    14″

    350

    468

    533

    476

    413

    35

    1.6

    12-29

    520

    14″

    350

    468

    585

    514.5

    413

    60.5

    6.4

    20-25

    520

    16″

    400

    526

    597

    540

    470

    37

    1.6

    16-29

    570

    16″

    400

    526

    650

    571.5

    470

    63.5

    6.4

    20-39

    570

    18″

    450

    610

    635

    578

    533

    40

    1.6

    16-32

    640

    18″

    450

    610

    711

    628.5

    533

    67

    6.4

    24-39

    640

    20″

    500

    610

    699

    635

    584

    43

    1.6

    20-32

    640

    20″

    500

    610

    775

    686

    584

    70

    6.4

    24-42

    640

    24″

    600

    762

    813

    749.5

    692

    48

    1.6

    20-35

    720

    24″

    600

    762

    915

    813

    692

    76.5

    6.4

    24-48

    720

    28″

    700

    889

    927

    863.5

    800

    72

    1.6

    28-35

    800

    28″

    700

     

     

     

     

     

     

     

     

    公稱通徑

    (DN)

    300Lb(ANSI B16.5RF法蘭Flange)

    公稱通徑

    (DN)

    600Lb(ANSI B16.5RF法蘭Flange)

    L

    D

    D1

    D2

    b

    f

    n-d

    H

    L

    D

    D1

    D2

    b

    f

    n-d

    H

    2″

    50

    124

    165

    127

    92

    23

    1.6

    8-19

    200

    2″

    50

    124

    165

    127

    92

    26

    6.4

    8-19

    200

    21/2″

    65

    145

    190

    149

    105

    26

    1.6

    8-22

    215

    21/2″

    65

    145

    190

    149

    105

    29

    6.4

    8-22

    215

    3″

    80

    165

    210

    168.5

    127

    29

    1.6

    8-22

    235

    3″

    80

    165

    210

    168.5

    127

    32

    6.4

    8-22

    235

    4″

    100

    200

    254

    200

    157

    32

    1.6

    8-22

    250

    4″

    100

    200

    273

    216

    157

    38

    6.4

    8-25

    250

    5″

    125

    254

    279

    235

    186

    35

    1.6

    8-22

    280

    5″

    125

    254

    330

    266.5

    186

    45

    6.4

    8-29

    280

    6″

    150

    267

    318

    270

    216

    37

    1.6

    12-22

    300

    6″

    150

    267

    356

    292

    216

    48

    6.4

    12-29

    300

    8″

    200

    292

    381

    330

    270

    42

    1.6

    12-25

    370

    8″

    200

    292

    419

    349

    270

    56

    6.4

    12-32

    370

    10″

    250

    330

    445

    387.5

    324

    48

    1.6

    16-29

    420

    10″

    250

    330

    508

    432

    324

    64

    6.4

    16-35

    420

    12″

    300

    390

    521

    451

    381

    51

    1.6

    16-32

    450

    12″

    300

    390

    559

    489

    381

    67

    6.4

    20-35

    450

    14″

    350

    468

    584

    514.5

    413

    54

    1.6

    20-32

    520

    14″

    350

    468

    603

    527

    413

    70

    6.4

    20-38

    520

    16″

    400

    526

    648

    571.5

    470

    58

    1.6

    20-35

    570

    16″

    400

    526

    686

    603

    470

    77

    6.4

    20-41

    570

    18″

    450

    610

    711

    628.5

    533

    61

    1.6

    24-35

    640

    18″

    450

    610

    743

    654

    533

    83

    6.4

    20-414

    640

    20″

    500

    610

    775

    686

    584

    54

    1.6

    24-35

    640

    20″

    500

    610

    813

    724

    584

    89

    6.4

    24-44

    640

    24″

    600

    762

    914

    813

    692

    70

    1.6

    24-41

    720

    24″

    600

    762

    940

    838

    692

    102

    6.4

    24-52

    720

    28″

    700

    889

    1035

    940

    800

    86

    1.6

    28-45

    800

    28″

    700

     

     

     

     

     

     

     

     

     

     

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