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Bi-Directional Zero Leakage Concentric Butterfly Valve

CONCENTRIC BUTTERFLY VALVE 

Used as line valves to cut off or modulate the service fluid.

Typically used for drinking water, fire water, waste water, industrial water, TSE water and sea water services etc in all kinds of industries.

PRESSURE RATING: PN10, PN16, 150psi, 250psi

SIZE RANGE: DN50(2”) ~ DN2000(80”)

Suitable temperature: 0 ~ 150 ℃

SEAT MATERIAL: EPDM/NBR/FKM/SILICONE/PTFE/HYPALON etc.

Fusion bonded epoxy, Rilsan, Nylon 11 and Halar coating are available

    Design Features

    Valve design to EN593; API609 etc.

    Flange to EN 1092, BS 4504, ASME B16.1, ASME B16.5, AWWA C207

    Face to face length to EN 558-1, API 609

    ● Simple and compact structure, low operating torque. 90 ° turn to open quickly.

    ● Valves are available in double flanged, Wafer, Lugged and U-section flange type.

    ● Replaceable valve seat , and rubber bonded valve seat by vulcanizing process(the hardness of liner 70-75 degree Shore A) are available.

    ● The certificate for suitability for use in contact with potable water at 50 o C from WRAS or equivalent will be submitted.

    ● The flow characteristics tend to be straight, with better adjustment performance.

    ● Self-lubricating bearing, with low friction coefficient and easy operation.

    ● Seals or Dry design having no wetness by line media flowing through valve.

    ● Multiple sealing design in shaft seal system, to ensure shaft no contact with service medium to achieve dry shaft.

    ● Stepped shaft design retained by a circlip to achieve blow-out proof shaft.

    Concentric-Butterfly-Valve13
    Concentric-Butterfly-Valve14

    ● The connection between shaft and disc is precisely processed to eliminate the linkage lag.

    ● And pinless two-piece shaft(one-piece available for request) design will ensure the valve shaft is completely isolated from the medium. Used for corrosive medium, common shaft material could be used instead of high anti-corrosive material so as to reduce the production cost.

    ● The disc edge is processed with spherical surface and polished to ensure low operating torque.

    ● The valve seat and body are positioned with single or double grooves to ensure no displacement and looseness during valve opening.

    ● The valve seat extended over the flange designed with a circular arc will accurate the positioning and be easy for replacement. No need of flange gasket during valve installation.

    ● ISO 5211 mounting flange to couple with all types of actuators.

    ● For operating mode, hand lever(wrench), manual gearbox with cap top or hand wheel or chain wheel, gearbox (high mechanical advantage) with electric mounting adaptor, electric, pneumatic.

    Materials of component

    Part no

    Part name

    Material

    1

    Valve shaft Stainless steel/Duplex SS SS416,SS431,17-4PH,1.4462,1.4507 etc.

    2

    Packing cap Carbon steel/Stainless steel Q235,SS304

    3

    O ring EPDM,NBR,FPM,AU etc.

    4

    Shaft bush Bronze, FRP, PTFE, SS304/316 + PTFE

    5

    Valve body Ductile iron GJS400-15,GJS500-7,65-45-12
    Carbon steel WCB
    Stainless steel CF8, CF8M,CF3M

    6

    Valve disc Ductile iron GJS400-15,GJS500-7,65-45-12
    Stainless steel/Duplex SS CF8, CF8M,CF3M,2205,2207, 4A, 5A
    Al-bronze C954,C955,C958

    7

    Valve seat EPDM/NBR(BUNA)/FKM(VITON)/SILICONE/PTFE/IIR/Hypalon etc.

    8

    Circlip Carbon steel/Stainless steel S235,SS304

    9

    End cover Same to valve body

    Note: The material will be designed and selected according to the actual working conditions or client’s special requirements.

    ★ Coating: epoxy/rilsan coating, total average thickness 300 micron 100% testing before delivery

    ★ Pressure test to EN12266-1/API598:
    Leakage rate: Class A (Zero leakage) in both direction
    100% testing before delivery

    Dimensions

    Dimensions for wafer & lug type

    Concentric-Butterfly-Valve15

    Size

    A

    B

    C

    h

    □E

    φS/J

    PN10

    PN16

    ANSI 150lb

    ISO 5211

    PCD

    n-φd

    N-M

    PCD

    n-φd

    N-M

    PCD

    n-φd

    N-M

    top flange

    40

    65

    120

    33

    14

    9

    φ110

    4-φ19

    4-M16

    φ110

    4-φ19

    4-M16

    φ98.4

    4-φ16

    4-1/2

    F05

    50

    73

    131

    43

    14

    9

    φ125

    4-φ19

    4-M16

    φ125

    4-φ19

    4-M16

    φ120.7

    4-φ19

    4-5/8

    F05

    65

    78

    147

    46

    14

    9

    φ145

    4-φ19

    4-M16

    φ145

    4-φ19

    4-M16

    φ139.7

    4-φ19

    4-5/8

    F05

    80

    92

    156

    46

    14

    9

    φ160

    4-φ19

    8-M16

    φ160

    4-φ19

    8-M16

    φ152.4

    4-φ19

    4-5/8

    F05

    100

    109

    169

    52

    18

    11

    φ180

    4-φ19

    8-M16

    φ180

    4-φ19

    8-M16

    φ190.5

    4-φ19

    8-5/8

    F07

    125

    127

    191

    56

    18

    14

    φ210

    4-φ19

    8-M16

    φ210

    4-φ19

    8-M16

    φ215.9

    4-φ22.3

    8-3/4

    F07

    150

    141

    214

    56

    18

    14

    φ240

    4-φ23

    8-M20

    φ240

    4-φ23

    8-M20

    φ241.3

    4-φ22.3

    8-3/4

    F07

    200

    166

    247

    60

    22

    17

    φ295

    4-φ23

    8-M20

    φ295

    4-φ23

    12-M20

    φ298.5

    4-φ22.3

    8-3/4

    F10

    250

    203

    283

    68

    22

    22

    φ350

    4-φ23

    12-M20

    φ355

    4-φ28

    12-M24

    φ362

    4-φ25.4

    12-7/8

    F10

    300

    236

    318

    78

    22

    22

    φ400

    4-φ23

    12-M20

    φ410

    4-φ28

    12-M24

    φ431.8

    4-φ25.4

    12-7/8

    F12

    350

    272

    327

    78

    22

    22

    φ460

    4-φ23

    16-M20

    φ470

    4-φ28

    16-M24

    φ476.3

    4-φ28.6

    12-1

    F12

    400

    304

    405

    102

    36

    27

    φ515

    4-φ28

    16-M24

    φ525

    4-φ31

    16-M27

    φ539.8

    4-φ28.6

    16-1

    F14

    450

    335

    409

    114

    36

    27

    φ565

    4-φ28

    20-M24

    φ585

    4-φ31

    20-M27

    φ577.9

    4-φ31.8

    16-1 1/8

    F14

    500

    368

    460

    127

    36

    36

    φ620

    4-φ28

    20-M24

    φ650

    4-φ34

    20-M30

    φ635

    4-φ31.8

    20-1 1/8

    F14

    600

    428

    516

    154

    46

    36

    φ725

    4-φ31

    20-M27

    φ770

    4-φ37

    20-M33

    φ749.3

    4-φ35

    20-1 1/4

    F16

    700

    520

    618

    165

    110

    63.3/18

    φ840

    4-φ31

    φ840

    4-φ37

    φ863.6

    4-φ35

    F25

    800

    580

    668

    190

    110

    63.3/18

    φ950

    4-φ34

    φ950

    4-φ41

    φ977.9

    4-φ41.3

    F25

    900

    650

    720

    203

    118

    75/20

    φ1050

    4-φ34

    φ1050

    4-φ41

    φ1085.8

    4-φ41.3

    F25

    1000

    710

    800

    216

    140

    85/22

    φ1160

    4-φ37

    φ1170

    4-φ44

    φ1200.2

    4-φ41.3

    F25

    1200

    860

    940

    254

    150

    105/28

    φ1380

    4-φ41

    φ1390

    4-φ50

    φ1422.4

    4-φ41.3

    F30

    Dimensions for flange type

    Concentric-Butterfly-Valve16

    Size

    A

    B

    C

    h

    □E

    φS/J

    PN10

    PN16

    ANSI 150lb

    ISO 5211

    PCD

    n-φd

    PCD

    n-φd

    PCD

    n-φd

    top flange

    50

    65

    124

    108

    32

    9

    φ125

    4-φ19

    φ125

    4-φ19

    φ120.7

    4-φ19

    F05

    65

    70

    134

    112

    32

    9

    φ145

    4-φ19

    φ145

    4-φ19

    φ139.7

    4-φ19

    F05

    80

    90

    139

    114

    32

    9

    φ160

    8-φ19

    φ160

    8-φ19

    φ152.4

    4-φ19

    F05

    100

    100

    150

    127

    32

    11

    φ180

    8-φ19

    φ180

    8-φ19

    φ190.5

    8-φ19

    F07

    125

    115

    172

    140

    32

    14

    φ210

    8-φ19

    φ210

    8-φ19

    φ215.9

    8-φ22.3

    F07

    150

    130

    181

    140

    32

    14

    φ240

    8-φ23

    φ240

    8-φ23

    φ241.3

    8-φ22.3

    F07

    200

    170

    217

    152

    40

    17

    φ295

    8-φ23

    φ295

    12-φ23

    φ298.5

    8-φ22.3

    F10

    250

    200

    254

    165

    40

    22

    φ350

    12-φ23

    φ355

    12-φ28

    φ362

    12-φ25.4

    F10

    300

    220

    282

    178

    40

    22

    φ400

    12-φ23

    φ410

    12-φ28

    φ431.8

    12-φ25.4

    F12

    350

    245

    330

    190

    40

    22

    φ460

    16-φ23

    φ470

    16-φ28

    φ476.3

    12-φ28.6

    F12

    400

    285

    350

    216

    51

    27

    φ515

    16-φ28

    φ525

    16-φ31

    φ539.8

    16-φ28.6

    F14

    450

    335

    393

    222

    51

    27

    φ565

    20-φ28

    φ585

    20-φ31

    φ577.9

    16-φ31.8

    F14

    500

    390

    440

    229

    64

    36

    φ620

    20-φ28

    φ650

    20-φ34

    φ635

    20-φ31.8

    F14

    600

    435

    535

    267

    70

    36

    φ725

    20-φ31

    φ770

    20-φ37

    φ749.3

    20-φ35

    F16

    700

    450

    570

    292

    80

    63.3/18

    φ840

    24-φ31

    φ840

    24-φ37

    φ863.6

    28-φ35

    F25

    800

    565

    700

    318

    80

    63.3/18

    φ950

    24-φ34

    φ950

    24-φ41

    φ977.9

    28-φ41.3

    F25

    900

    620

    760

    330

    110

    75/20

    φ1050

    28-φ34

    φ1050

    28-φ41

    φ1085.8

    32-φ41.3

    F25

    1000

    705

    820

    410

    150

    85/22

    φ1160

    28-φ37

    φ1170

    28-φ44

    φ1200.2

    36-φ41.3

    F25

    1200

    810

    924

    470

    150

    105/28

    φ1380

    32-φ41

    φ1390

    32-φ50

    φ1422.4

    44-φ41.3

    F30

    1400

    1000

    1020

    530

    160

    135/36

    φ1590

    36-φ44

    φ1590

    36-φ50

    φ1651

    48-φ47.6

    F35

    Dimensions for U-flange type

    Concentric-Butterfly-Valve17

    Size

    A

    B

    C

    h

    □E

    φS/J

    PN10

    PN16

    ANSI 150lb

    ISO 5211

    PCD

    n-φd

    N-M

    PCD

    n-φd

    N-M

    PCD

    n-φd

    N-M

    top flange

    50

    73

    131

    43

    14

    9

    φ125

    4-φ19

    4-M16

    φ125

    4-φ19

    4-M16

    φ120.7

    4-φ19

    4-5/8

    F05

    65

    78

    147

    46

    14

    9

    φ145

    4-φ19

    4-M16

    φ145

    4-φ19

    4-M16

    φ139.7

    4-φ19

    4-5/8

    F05

    80

    92

    156

    46

    14

    9

    φ160

    8-φ19

    4-M16

    φ160

    8-φ19

    4-M16

    φ152.4

    4-φ19

    4-5/8

    F05

    100

    109

    169

    52

    18

    11

    φ180

    8-φ19

    4-M16

    φ180

    8-φ19

    4-M16

    φ190.5

    8-φ19

    4-5/8

    F07

    125

    127

    191

    56

    18

    14

    φ210

    8-φ19

    4-M16

    φ210

    8-φ19

    4-M16

    φ215.9

    8-φ22.3

    4-3/4

    F07

    150

    141

    214

    56

    18

    14

    φ240

    8-φ23

    4-M20

    φ240

    8-φ23

    4-M20

    φ241.3

    8-φ22.3

    4-3/4

    F07

    200

    170

    247

    60

    22

    17

    φ295

    8-φ23

    4-M20

    φ295

    12-φ23

    4-M20

    φ298.5

    8-φ22.3

    4-3/4

    F10

    250

    203

    283

    68

    22

    22

    φ350

    12-φ23

    4-M20

    φ355

    12-φ28

    4-M24

    φ362

    12-φ25.4

    4-7/8

    F10

    300

    236

    318

    78

    22

    22

    φ400

    12-φ23

    4-M20

    φ410

    12-φ28

    4-M24

    φ431.8

    12-φ25.4

    4-7/8

    F12

    350

    272

    330

    78

    22

    22

    φ460

    16-φ23

    4-M20

    φ470

    16-φ28

    4-M24

    φ476.3

    12-φ28.6

    4-1

    F12

    400

    304

    405

    102

    36

    27

    φ515

    16-φ28

    4-M24

    φ525

    16-φ31

    4-M27

    φ539.8

    16-φ28.6

    4-1

    F14

    450

    335

    409

    114

    36

    27

    φ565

    20-φ28

    4-M24

    φ585

    20-φ31

    4-M27

    φ577.9

    16-φ31.8

    4-1 1/8

    F14

    500

    390

    460

    127

    36

    36

    φ620

    20-φ28

    4-M24

    φ650

    20-φ34

    4-M30

    φ635

    20-φ31.8

    4-1 1/8

    F14

    600

    435

    535

    154

    46

    36

    φ725

    20-φ31

    4-M27

    φ770

    20-φ37

    4-M33

    φ749.3

    20-φ35

    4-1 1/4

    F16

    700

    520

    618

    165

    110

    63.3/18

    φ840

    24-φ31

    4-M27

    φ840

    24-φ37

    4-M33

    φ863.6

    28-φ35

    4-1 1/4

    F25

    800

    580

    700

    190

    110

    63.3/18

    φ950

    24-φ34

    4-M30

    φ950

    24-φ41

    4-M36

    φ977.9

    28-φ41.3

    4-1 1/2

    F25

    900

    650

    760

    203

    118

    75/20

    φ1050

    28-φ34

    4-M30

    φ1050

    28-φ41

    4-M36

    φ1085.8

    32-φ41.3

    4-1 1/2

    F25

    1000

    715

    820

    216

    140

    85/22

    φ1160

    28-φ37

    4-M33

    φ1170

    28-φ44

    4-M39

    φ1200.2

    36-φ41.3

    4-1 1/2

    F25

    1200

    860

    940

    254

    150

    105/28

    φ1380

    32-φ41

    4-M36

    φ1390

    32-φ50

    4-M45

    φ1422.4

    44-φ41.3

    4-1 1/2

    F30

    1400

    1150

    1750

    279

    200

    135/36

    Φ1590

    36-φ44

    4-M39

    Φ1590

    36-φ50

    4-M45

    Φ1651

    48-φ47.6

    4-1 3/4

    F35

    1500

    1000

    1090

    381

    200

    150/36

    Φ1700

    36-φ44

    4-M39

    Φ1710

    36-φ57

    4-M52

    Φ1759

    52-φ47.6

    4-1 3/4

    F35

    1600

    1305

    1870

    318

    200

    150/40

    Φ1820

    40-φ50

    4-M45

    Φ1820

    40-φ57

    4-M52

    Φ1875

    52-φ47.6

    4-1 3/4

    F35

    Product Display

    Concentric-Butterfly-Valve6
    Concentric-Butterfly-Valve7
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    Concentric-Butterfly-Valve10