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Insulation butterfly valve
Model: BD343H
Nominal diameter: NPS2 "~ 80", DN50 ~ DN2000
Nominal pressure : Class150 ~ 1500Lb, PN0.6 ~ 2.5MPa
Design criteria: API 609, ASME B16.34, GB / T12238, GB / T12224, 8527 JB / T
Structural length: API 609, ASME B16.10, GB / T12221,
Connection standard: ASME B16.5 , ASME B16.47, ASME B16.25, GB / T 9113, HG / T 20592
Testing and Testing: API 598, GB / T13927, JB / T9092, GB / T 26480
Fire Test: API 607
Pressure and Temperature : ASME B16.34, GB / T 12224
Product details

Product Description:
BD343H three eccentric   butterfly valve insulation butterfly valve, also known as the butterfly   valve in the general three eccentric metal seal on the outside of the   body welded with metal jacket, butterfly valve on both sides of the body   with a jacket jacket interface , Can contain steam or other overheating   gas to prevent the medium from freezing or crystallization at normal   temperature. Insulation butterfly valve flange than ordinary metal hard   sealing butterfly valve to one or two specifications, mainly for   petroleum, chemical, metallurgical, pharmaceutical and other   systems. Insulation butterfly valve BD343H / BD643H / BD943H. 

Working principle:
BD343H   three Eccentric butterfly valve body and butterfly valve design using   three-dimensional eccentric principle, so that the sealing surface of   the space trajectory to achieve the most ideal, no sealing between the   wear and tear, without interference, combined with sealing material   selection of a reasonable seat Welding STL alloy, so that the entire   seat of the seal, high temperature resistance, wear resistance,   corrosion resistance can be reliably guaranteed. 

Features:
☆   thermal insulation effect is good, energy saving, long life, etc.   Advantage is the ideal device for sulfur back to the device. 
☆ using three-dimensional eccentric design, the sealing surface of the space trajectory to achieve the most ideal. 
☆   small opening torque, flexible and convenient and three-dimensional   eccentric structure can make the more close off the butterfly tight,   more reliable sealing. 
☆ There is no wear and tear between the   sealing pair, no interference, combined with sealing material choose a   reasonable seat surfacing STL alloy, so that the entire seat of the   seal, high temperature resistance, wear resistance, corrosion resistance   can be reliably guaranteed.

BD 3/6/9 43H- 10 C. PRV series of insulation butterfly valve

DN (mm)

Structure length 
       (standard value)

Dimensions (reference value)

Connection size (standard value)

48-48
       Reference
       Weight 
       D1341H 
       (kg)

L

H

BDd343H

BDd643H

BDd943H

PN0.6MPa

PN1.6MPa

mm

inch

Brief

Long

H1

A1

B1

H2

A2

B2

H3

A3

B3

D

D1

Zd

D

D1

Zd

50

2

108

150

112

350

180

200

625

245

72

530

250

255

140

110

4-14

165

125

4-18

17

65

2 1/2

112

170

115

370

180

200

625

245

72

530

250

255

160

130

4-14

185

145

4-18

20

80

3

114

180

120

380

180

200

645

245

72

565

250

255

190

150

4-18

200

160

8-18

23

100

4

127

190

138

420

180

200

675

355

92

600

250

255

210

170

4-18

220

180

8-18

25

125

5

140

200

164

460

180

200

715

355

92

640

250

255

240

200

8-18

250

210

8-18

40

150

6

140

210

175

555

270

280

800

355

92

705

300

315

265

225

8-18

285

240

8-22

47

200

8

152

230

200

760

400

425

850

250

170

775

300

315

320

280

8-18

340

295

8-22

60

250

10

165

250

243

830

400

425

925

250

170

945

300

315

375

335

12-18

365

350

12-22

95

300

12

178

270

250

895

450

560

1035

450

220

1070

300

315

440

395

12-22

445

400

12-22

124

350

14

190

290

280

950

450

560

1070

450

220

1140

300

315

490

445

12-22

505

460

16-22

181

400

16

216

310

305

1190

535

580

1190

450

220

1210

300

315

540

495

16-22

565

515

16-22

260

450

18

222

330

350

1255

535

580

1250

650

280

1335

575

714

595

550

16-22

615

565

16-26

338

500

20

229

350

380

1305

535

580

1290

650

280

1415

575

714

645

600

20-22

670

620

20-26

360

600

24

267

390

445

1340

570

660

1455

850

380

1605

656

810

755

705

20-26

780

725

20-26

540

700

28

292

430

480

1520

750

550

1585

850

380

1844

656

810

860

810

24-26

895

840

20-30

580

800

32

318

470

530

1710

750

550

1700

1250

380

2040

656

810

975

920

24-30

1015

950

24-30

845

900

36

330

510

580

1810

750

550

1965

1250

380

2255

785

863

1075

1020

24-30

1115

1050

24-33

1050

1000

40

410

550

650

1960

900

750

2015

1250

380

2380

785

863

1175

1120

28-30

1230

1160

28-33

1500

1200

48

470

630

760

2250

1000

925

2250

1250

380

2640

785

863

1405

1340

32-33

1455

1380

28-36

2000

1400

56

530

710

850

2435

1000

925

     

2886

   

1630

1560

36-36

1675

1590

32-39

3000

1600

64

600

790

1030

2780

1000

925

     

3156

   

1830

1760

40-36

1915

1820

36-42

4700

1800

72

670

870

1230

3020

1100

980

     

3421

   

2045

1970

44-39

2115

2020

40-48

6500

2000

80

760

950

1350

3270

1100

980

     

3685

   

2265

2180

48-42

2325

2230

44-48

8700

 

BD 3/6/9 43H- 25 C. PRV series of insulation butterfly valve

DN (mm)

Structure length 
       (standard value)

Dimensions (reference value)

Connection size (standard value)

48-48
       Reference
       Weight 
       D1341H 
       (kg)

L

H

BDd343H

BDd643H

BDd943H

PN0.6MPa

PN1.6MPa

mm

inch

Brief

Long

H1

A1

B1

H2

A2

B2

H3

A3

B3

D

D1

Zd

D

D1

Zd

50

2

108

150

112

350

180

200

625

245

72

530

250

255

165

125

4-14

165

125

4-18

19

65

2 1/2

112

170

115

370

180

200

625

245

72

530

250

255

185

145

4-14

185

145

8-18

22

80

3

114

180

120

380

180

200

645

245

72

565

250

255

200

160

4-18

200

160

8-18

25

100

4

127

190

138

420

180

200

675

355

92

600

250

255

220

180

4-18

235

190

8-22

28

125

5

140

200

164

460

180

200

715

355

92

640

250

255

250

210

8-18

270

220

8-26

43

150

6

140

210

175

555

270

280

800

355

92

705

300

315

285

240

8-18

300

250

8-26

50

200

8

152

230

200

760

400

425

850

250

170

775

300

315

340

295

8-18

360

310

12-26

64

250

10

165

250

243

830

400

425

925

170

945

300

315

405

355

12-18

425

370

12-30

99

300

12

178

270

250

895

450

560

1035

450

220

1070

300

315

460

410

12-22

485

430

16-30

130

350

14

190

290

280

950

450

560

1070

450

220

1140

300

315

520

470

12-22

555

490

16-33

188

400

16

216

310

305

1190

535

580

1190

450

220

1210

300

315

580

525

16-22

620

550

16-36

270

450

18

222

330

350

1255

535

580

1250

650

280

1335

575

714

640

585

16-22

670

600

20-36

350

500

20

229

350

380

1305

535

580

1290

650

280

1415

575

714

715

650

20-22

730

660

20-36

375

600

24

267

390

445

1340

570

660

1455

850

380

1605

656

810

840

770

20-26

845

770

20-39

560

700

28

292

430

480

1520

750

550

1585

850

380

1844

656

810

910

840

24-26

960

875

24-42

610

800

32

318

470

530

1710

750

550

1700

1250

380

2040

656

810

1025

950

24-30

1085

990

24-48

880

900

36

330

510

580

1810

750

550

1965

1250

380

2255

785

863

1125

1050

24-30

1185

1090

28-48

1100

1000

40

410

550

650

1960

900

750

2015

1250

380

2380

785

863

1255

1170

28-30

1320

1210

28-56

1600

1200

48

470

630

760

2250

1000

925

2250

1250

380

2640

785

863

1485

1390

32-33

1530

1420

32-56

2150

1400

56

530

710

850

2435

1000

925

     

2886

   

1685

1590

36-36

1755

1640

36-62

3200

1600

64

600

790

1030

2780

1000

925

     

3156

   

1930

1820

40-36

1975

1830

40-62

5000

1800

72

670

870

1230

3020

1100

980

     

3421

   

2130

2020

44-39

2195

2070

44-70

6800

2000

80

760

950

1350

3270

1100

980

     

3685

   

2345

2230

48-42

2425

2300

48-70

9100

※ Note: Dd- stands for multi-level seal structure

 

BD 3/6/9 43H- 40 C. PRV series of insulation butterfly valve

DN (mm)

Structure length 
       (standard value)

Dimensions (reference value)

Connection size (standard value)

L

H

DBd373H

DBd673H

BDd973H

PN4.0MPa

mm

inch

Short Brief

Long Long

H1

A1

B1

H2

A2

B2

H3

A3

B3

D

D1

Zd

50

2

108

150

112

350

180

200

625

250

170

530

250

255

165

125

4-14

65

2 1/2

112

170

115

370

180

200

625

250

170

530

250

255

185

145

8-18

80

3

114

180

120

380

180

200

645

250

170

565

250

255

200

160

8-18

100

4

127

190

138

420

180

200

675

250

170

600

250

255

235

190

8-22

125

5

140

200

164

460

180

200

715

450

220

640

250

255

270

220

8-26

150

6

140

210

175

555

270

280

800

450

220

705

300

315

300

250

8-26

200

8

152

230

200

760

400

425

850

450

220

775

300

315

375

320

12-30

250

10

165

250

243

930

400

425

925

450

280

945

300

315

450

385

12-33

300

12

178

270

250

895

450

560

1035

650

280

1070

300

315

515

450

16-33

350

14

190

290

280

950

450

560

1070

650

280

1140

300

315

580

510

16-36

400

16

216

310

305

1190

535

580

1190

650

280

1210

300

315

660

585

16-39

450

18

222

330

350

1255

535

580

     

1335

575

714

685

610

20-39

500

20

229

350

380

1305

535

580

     

1415

575

714

755

670

20-42

※ Note: Flange standard: GB / T9113.1-2000 GB / T9113.2-2000 GB / T911.5.1-2000 GB / T9115.2-2000 
 Note: The table H1, H2, H3 size can be based on User needs longer   (pole butterfly valve), the product generally press a short series, if   you need to order a long series or special materials.