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Telescopic Butterfly Valve

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  • HEARKEN

Material of main parts

Part Name

Material

Body

Cast iron,Cast steel,Stainless steel,Alloy steel

Plate

Carbon steel,Alloy steel,Stainless Steel,Chromium molybdenum steel

Seal

Rubber,Teflon,Polyester,Stainless steel

Stem

2Cr13,Stainless steel,Chromium molybdenum steel

Flexible Tube

Cast iron,Carbon steel,Stainless steel,Chromium molybdenum steel


PTFE-Lined Butterfly Valves Standard

Technical Specification

Design Standard

GB/T 12238

Structure Length

GB 12221

Flange Standard

GB9113.1-26 GB4216

Inspection and Test

GB/T13927 JB/T9092


Main external and connecting dimensions(mm)


DN

NPS

Shape Size

L max

L min

L

H2

H2

A

B

50

2

210

170

190

309

80

180

200

65

2 1/2

210

170

190

337

95

180

200

80

3

210

170

190

347

98

180

200

100

4

240

200

220

373

114

180

200

125

5

240

200

220

405

128

180

200

150

6

240

200

220

440

139

270

280

200

8

280

230

255

612

174

400

425

250

10

280

230

255

693

215

400

425

300

12

310

260

285

747

245

450

560

350

14

310

260

285

802

270

450

560

400

16

360

300

330

991

305

535

580

450

18

360

300

330

1037

325

535

580

500

20

360

300

330

1127

360

535

580

600

24

420

350

385

1377

445

570

660

700

28

420

350

385

1496

505

750

550

800

32

470

400

435

1584

560

750

550

900

36

470

400

435

1676

630

750

550

1000

40

580

500

540

1760

680

900

750

1200

48

630

550

590

2018

795

1000

925

1400

56

730

650

690

2363

900

1000

925

1600

64

800

700

750

2723

1100

1000

925

1800

72

850

750

800

2844

1124

1100

980

2000

80

920

850

900

3127

1292

1100

980


DN

NPS

0.6MPa

1.0MPa

1.6MPa

D

D1

D2

n-d

D

D1

D2

n-d

D

D1

D2

n-d

50

2

140

110

88

4-14

165

125

99

4-18

165

125

99

4-18

65

2 1/2

160

130

108

4-14

185

145

118

4-18

185

145

118

4-18

80

3

190

150

124

4-18

200

160

132

8-18

200

160

132

8-18

100

4

210

170

144

4-18

220

180

156

8-18

220

180

156

8-18

125

5

240

200

174

8-18

250

210

184

8-18

250

210

184

8-18

150

6

265

225

199

8-18

285

240

211

8-22

285

240

211

8-22

200

8

320

280

254

8-18

340

295

266

8-22

340

295

266

12-22

250

10

375

335

309

12-18

395

350

319

12-22

405

355

319

12-26

300

12

440

395

363

12-22

445

400

370

12-22

460

410

370

12-26

350

14

490

445

413

12-22

505

460

429

16-22

520

470

429

16-26

400

16

540

495

463

16-22

565

515

480

16-26

580

525

480

16-30

450

18

595

550

518

16-22

615

565

530

20-26

640

585

540

20-30

500

20

645

600

568

20-22

670

620

582

20-26

715

650

609

20-33

600

24

755

705

667

20-26

780

725

682

20-30

840

770

720

20-36

700

28

860

810

772

24-26

895

840

794

24-30

910

840

794

24-36

800

32

975

920

878

24-30

1015

950

901

24-33

1025

950

901

24-39

900

36

1075

1020

978

24-30

1115

1050

1001

28-33

1125

1050

1001

28-39

1000

40

1175

1120

1078

28-30

1230

1160

1112

28-36

1255

1170

1112

28-42

1200

48

1405

1340

1295

32-33

1455

1380

1328

32-39

1485

1390

1328

32-48

1400

56

1630

1560

1510

36-36

1675

1590

1530

36-42

1685

1590

1530

36-48

1600

64

1830

1760

1710

40-36

1915

1820

1750

40-48

1930

1820

1750

40-56

1800

72

2045

1970

1718

44-39

2115

2020

1950

44-48

2130

2020

1950

44-56

2000

80

2265

2180

2125

48-42

2325

2230

2150

48-48

2345

2230

2150

48-60



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