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Double Flanged Joint Force Expansion Joint

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Material of main parts

Part Name

Material

Flexible Seat

Cast iron,Cast steel,Stainless steel,Carbon steel weld parts

Flexible Tube

Cast iron,Cast steel,Stainless steel,Carbon steel weld parts

Seal

Styrene rubber,Neoprene,Ethane prople rubber,Silicon rubber,Fluorine rubber


PTFE-Lined Butterfly Valves Standard

Technical Specification

Design Standard

GB/T 12238

Structure Length

GB 12221

Flange Standard

GB/T17241.6 ISO7005-2/BSEN1092

Inspection and Test

GB/T13927 ISO 5028/BS 6755-1


Main external and connecting dimensions(mm)



Nominal
Diameter
DN(mm)

Pipe Diameter
Dw

Shape Size

Flange Connection Size

L

ΔL

0.6MPa

1.0MPa

D

D1

n-d

b

D

D1

n-d

b

100

114

200

40

210

170

4-18

18

220

180

8-18

24

125

140

200

40

240

200

8-18

20

250

210

8-18

26

150

168

200

40

265

225

8-18

20

285

240

8-23

26

200

219

200

40

320

280

8-18

22

340

295

8-23

28

250

273

200

40

375

335

12-18

24

395

350

12-23

28

300

325

220

50

440

395

12-23

24

445

400

12-23

28

350

377

220

50

490

445

12-23

26

505

460

16-23

30

400

426

220

50

540

495

16-23

28

565

515

16-26

30

450

480

220

50

595

550

16-23

28

615

565

20-26

32

500

530

200

50

645

600

20-23

30

670

620

20-26

34

600

630

240

50

755

705

20-26

30

780

725

20-30

36

700

720

240

50

860

810

24-26

32

895

840

24-30

40

800

820

350

60

975

920

24-30

32

1015

950

24-34

44

900

920

350

60

1075

1020

24-30

34

1115

1050

28-34

46

1000

1020

350

60

1175

1120

28-30

36

1230

1160

28-36

50

1200

1220

370

60

1405

1340

32-34

40

1455

1380

32-39

56

1400

1420

370

60

1630

1560

36-36

44

1675

1590

36-42

62

1600

1620

380

60

1830

1760

40-36

48

1915

1820

40-48

68

1800

1820

380

60

2045

1970

44-41

50

2115

2020

44-48

70

2000

2020

400

60

2265

2180

48-42

54

2325

2230

48-48

74

2200

2220

400

60

2475

2390

52-48

60

2550

2440

52-56

80

2400

2420

400

60

2685

2600

56-48

62

2760

2650

56-56

82

2600

2620

450

80

2905

2810

60-48

64

2960

2850

60-56

88

2800

2820

450

80

3115

3020

64-49

68

3180

3070

64-56

94

3000

3020

450

80

3315

3220

68-49

70

3405

3290

68-60

100

3200

3220

450

80

3525

3430

72-49

76

3605

3490

72-56

/

3400

3420

490

100

3735

3640

76-49

80

3805

3690

76-56

/

3600

3620

490

100

3970

3860

80-56

82

4005

3890

80-56

/


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