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Stainless Steel Flange Butterfly Valve
Name:

Stainless Steel Flange Butterfly Valve

Category：

Butterfly valve

Remark:

D343W three eccentric multi-level stainless steel butterfly valve seal is widely used in metallurgy, electricity, petroleum, chemicals, air, gas, combustible gas and water supply and drainage and other corrosive media pipeline.

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Product Usage

   D343W three eccentric multi-level stainless steel butterfly valve seal is widely used in metallurgy, electricity, petroleum, chemicals, air, gas, combustible gas and water supply and drainage and other corrosive media pipeline.

  

Specification

Design and manufacture of standards: GB / T 12238-2008
Structure length standard: GB / T 12221-2005
Connection flange standard: GB / T 9113
Pressure temperature grade: GB / T 12224-2005
Test test standards: GB / T 13927-2008

  

Structural features

1. The hard seal butterfly valve with three eccentric hard seal structure, the valve seat and disc almost no wear, with the more the more tight sealing function.
2. The ring made of stainless steel, with the advantages of both metal seal and flexible seal, both in the case of low temperature and high temperature, have excellent sealing performance, with corrosion resistance, long service life and so on.
3. The butterfly plate sealing surface using welding cobalt-based hard alloy, sealing surface wear-resistant, long service life.
4. Large-format butterfly plate frame structure, high strength, large flow area, small flow resistance.
5. According to user needs, the valve supply network of hard-sealing butterfly valve can be designed to have a two-way sealing function, the installation of media flow from the restrictions, but also the impact of space location, can be installed in any direction.
6. The drive can be multi-station (rotated 90 ° or 180 °) installation, user-friendly.

 

Main performance specifications

Nominal diameter

DN（mm）

50-4000

Nominal pressure

PN（MPa)

1.0

1.6

2.5

test pressure

Strength test

1.5

2.4

3.75

Seal test

1.1

1.76

2.75

Gas seal test

0.6

0.6

0.6

 

 

Product Parts Materials

model

D343H-16

D343W-16P

D343W-16R

Working pressure（MPa）

1.6

Applicable temperature（℃）

≤425

≤200

Suitable media

Water, oil or non-corrosive media

Nitric acid medium

Acetic acid medium

material

Body, disc

WCB

CF8/304

CF3M/316L

Valve stem

2Cr13

304

316L

Body sealing surface

Surfacing507

－

－

Butterfly sealing surface

304＋Flexible graphite

304＋PTFE

304＋PTFE

 filler

Flexible graphite

PTFE

PTFE

 

The main shape and connection size

PN

DN

L

D

D1

D2

Z-d

b

f

H

H0

1.0

50

108

165

125

99

4-18

20

2

170

130

1.0

65

112

185

145

118

4-18

20

2

170

145

1.0

80

114

200

160

132

8-18

20

2

230

152

1.0

100

127

220

180

156

8-18

22

2

320

192

1.0

125

140

250

210

184

8-18

22

2

345

200

1.0

150

140

285

240

211

8-22

24

2

385

230

1.0

200

152

340

295

266

8-22

24

2

471

297

1.0

250

165

405

355

319

12-22

26

2

533

327

1.0

300

178

445

400

370

12-22

26

2

606

364

1.0

350

190

505

460

429

16-22

26

2

694

404

1.0

400

216

565

515

480

16-26

26

2

757

444

1.0

450

222

615

565

530

20-26

28

2

814

472

1.0

500

229

670

620

582

20-26

28

2

902

522

1.0

600

267

780

725

682

20-30

34

2

1048

590

1.0

700

292

895

840

794

24-30

34

5

1277

810

1.0

800

318

1015

950

901

24-33

36

5

1385

844

1.0

900

330

1115

1050

1001

28-33

38

5

1490

890

1.0

1000

410

1230

1160

1112

28-36

38

5

1620

950

1.6

50

108

165

125

99

4-18

20

2

170

130

1.6

65

112

185

145

118

4-18

20

2

170

145

1.6

80

114

200

160

132

8-18

20

2

230

152

1.6

100

127

220

180

156

8-18

22

2

320

192

1.6

125

140

250

210

184

8-18

22

2

345

200

1.6

150

140

285

240

211

8-22

24

2

385

230

1.6

200

152

340

295

266

12-22

24

2

471

297

1.6

250

165

405

355

319

12-26

26

2

533

327

1.6

300

178

460

410

370

12-26

28

2

606

364

1.6

350

190

520

470

429

16-26

30

2

694

404

1.6

400

216

580

525

480

16-30

32

2

757

444

1.6

450

222

640

585

548

20-30

40

2

814

472

1.6

500

229

715

650

609

20-33

44

2

902

522

1.6

600

267

840

770

720

20-36

54

2

1048

590

1.6

700

292

910

840

794

24-36

40

5

1277

810

1.6

800

318

1025

950

901

24-39

42

5

1385

844

1.6

900

330

1125

1050

1001

28-39

44

5

1490

890

1.6

1000

410

1225

1170

1112

28-42

46

5

1620

950

2.5

50

108

165

125

99

4-18

20

2

170

130

2.5

65

112

185

145

118

8-18

22

2

265

210

2.5

80

114

200

160

132

8-18

24

2

310

233

2.5

100

127

235

190

156

8-22

24

2

343

242

2.5

125

140

270

220

184

8-26

26

2

385

254

2.5

150

140

300

250

211

8-26

28

2

445

580

2.5

200

152

360

310

274

12-26

30

2

510

297

2.5

250

165

425

370

330

12-30

32

2

569

339

2.5

300

178

485

430

389

16-30

34

2

653

375

2.5

350

190

555

490

448

16-33

38

2

730

420

2.5

400

216

620

550

503

16-36

40

2

810

463

2.5

450

222

670

600

548

20-36

46

2

850

495

2.5

500

229

730

660

609

20-36

48

2

940

566

2.5

600

267

845

770

720

20-39

58

2

1150

630

2.5

700

292

960

875

820

24-42

58

5

1195

727

2.5

800

318

1085

990

609

24-36

58

5

1268

810

 

Structure picture


 

Inquiry

If you have any enquiry about quotation or cooperation,please feel free to email us at info@cnlgvalve.com or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.