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Butterfly valve

Butterfly valve

Double eccentric double flange NBR/EPDM rubber soft seal butterfly valve replaceable disc sealing ring used for water or seawater with lever/worm gear box/electric actuator.
DN50-DN4500, PN6/10/16/25, available material cast iron, ductile iron GGG40/GGG50/WCB/SS, used for water.
Product features
·To DIN3352 or API609
·Face to face per DIN3202/ISO5752
·flange ends dimension DIN2501/ANSI B 16.5/ANSI B 16.47
·Final inspection tests to API598/DIN3230.
Materials
· Body and disc: cast iron, ductile iron GGG40/GGG50/WCB/SS
·shafts of stainless steel 2cr13
·Disc sealing ring in replaceable NBR/EPDM rubber.
·seat face weld with copper alloy, micro finished.
Corrosion protection
· Inside and outside epoxy coating
·Applicable temperature:-20-100 different raw material for different work temperature
·Applicable medium: water, oil, gas and other causticity medium (different raw material for different medium)

1) Brief
Flange type soft seal butterfly valve is our new product which design and manufacture according to the newest standard of DIN3354&API609, new structure and better performance. It can cut-off or control the flow rate and which can be used in metallurgy, chemical, electrical, municipal engineering, pipeline engineering etc. Appropriate medium: water, oil, air and so on..
2)Characteristic
1.New structure design, much suitable size and weight;
2.The sealing ring can be replaced without dismantling the disc.
3.Double eccentric disc and body structure, easy operating;
4.Sliding fit between seal and seat, lower abrasion and longer lifetime;
5.90°turning shaft design, which can control the disc at any position between 0°~90°;
6.Besides worm gear and level, electrical actuator, pneumatic actuator, hydraulic actuator can be used either;
7.Better flow characteristics, better performance.

Main technology parameter

Type

Nominal pressure PN(Mpa)

Shell test

MPa

Seal test

MPa

Appropriate temperature

()

Appropriate  medium

  3     6
D 641X-10
9    16

0.6
1.0
1.6

0.9
1.1
1.76

0.66
1.5
2.4

≤80

Water, oil, gas

CLASS 150 is also available.
Material of main parts

Parts 

Body, disc

Shaft

Sealing

Packing

Material

ductile cast iron  gray cast iron,
carbon steel, SST

carbon steel,SST 45#   2Cr13

NBR/EPDM

flexible graphite

5) Drawing and main parts

Nominal diameter
DN(mm)

L
Short series

L
Long series

D

D1

D2

b

H

H1

z-φd

100

127

190

210

170

144

18

240

120

4-φ19

125

140

200

240

200

174

20

270

130

8-φ19

150

140

210

265

225

199

20

300

150

8-φ19

200

152

230

320

280

254

22

330

180

8-φ19

250

165

250

375

335

309

24

400

220

12-φ19

300

178

270

440

395

363

24

410

220

12-φ23

350

190

290

490

445

413

26

460

270

12-φ23

400

216

310

540

495

463

28

510

290

16-φ23

450

222

330

595

550

518

28

560

320

16-φ23

500

229

350

645

600

568

30

590

360

16-φ23

600

267

390

755

705

667

30

660

390

20-φ26

700

292

430

860

810

772

32

780

460

24-φ26

800

318

470

975

920

878

34

850

530

24-φ31

900

330

510

1075

1020

978

36

920

570

24-φ31

1000

410

550

1175

1120

1078

36

990

630

28-φ31

1200

470

630

1405

1340

1295

40

1115

750

32-φ34

1400

530

710

1630

1560

1510

44

1228

850

36-φ37

1600

600

790

1830

1760

1710

48

1340

990

40-φ37

1800

670

870

2045

1970

1918

50

1570

1100

44-φ40

2000

760

950

2265

2180

2125

54

1750

1170

48-φ43

2200

 

1000

2475

2390

2335

60

1950

1330

52-φ43

2400

 

1100

2685

2600

2545

62

2050

1410

56-φ43

6) External and connection dimension   PN6
Note: 1.Above flange ends dimensions accord to DIN2501.
2. ANSI B16.5 and ASME B16.47 are also available.

7) External and connection dimension     PN10

Nominal diameter
DN(mm)

L
Short series

L
Long series

D

D1

D2

b

H

H1

z-φd

100

127

190

220

180

156

19

240

120

8-19

125

140

200

250

210

184

19

270

130

8-19

150

140

210

285

240

211

20

300

150

8-23

200

152

230

340

295

266

22

330

180

12-φ23

250

165

250

405

355

319

22

400

220

12-φ28

300

178

270

460

410

370

24.5

410

220

12-φ28

350

190

290

520

470

429

26.5

460

270

16-φ28

400

216

310

580

525

480

28

510

290

16-φ31

450

222

330

640

585

548

30

560

320

20-φ31

500

229

350

715

650

609

32

590

360

20-φ34

600

267

390

840

770

720

36

660

390

20-φ37

700

292

430

910

840

794

40

780

460

24-φ37

800

318

470

1025

950

901

43

850

530

24-φ40

900

330

510

1125

1050

1001

46

920

570

28-φ40

1000

410

550

1255

1170

1112

50

990

630

28-φ43

1200

470

630

1485

1390

1328

57

1115

750

32-φ49

1400

530

710

1685

1590

1530

60

1228

850

36-φ49

1600

600

790

1930

1820

1750

65

1340

990

40-φ56

2000

760

950

2325

2230

2150

74

1680

1170

48-φ49

Note: 1.Above flange ends dimensions accord to DIN2501.
2. ANSI B16.5 and ASME B16.47 are also available.

8) External and connection dimension      PN16

Nominal diameter
DN(mm)

L
Short series

L
Long series

D

D1

D2

b

H

H1

z-φd

100

127

190

220

180

156

24

240

120

8-φ19

125

140

200

250

210

184

26

270

130

8-φ19

150

140

210

285

240

211

26

300

150

8-φ23

200

152

230

340

295

266

26

330

180

8-φ23

250

165

250

395

350

319

28

400

220

12-φ23

300

178

270

445

400

370

28

410

220

12-φ23

350

190

290

505

460

429

30

460

270

16-φ23

400

216

310

565

515

480

32

510

290

16-φ26

450

222

330

615

565

530

32

560

320

20-φ26

500

229

350

670

620

582

34

590

360

20-φ26

600

267

390

780

725

682

36

660

390

20-φ30

700

292

430

895

840

794

40

780

460

24-φ30

800

318

470

1015

950

901

44

850

530

24-φ34

900

330

510

1115

1050

1001

46

920

570

28-φ34

1000

410

550

1230

1160

1112

50

990

630

28-φ37

1200

470

630

1455

1380

1328

56

1115

750

32-φ40

1400

530

710

1675

1590

1530

62

1228

850

36-φ43

1600

600

790

1915

1820

1750

68

1340

990

40-φ49

1800

670

870

2115

2020

1950

70

1570

1100

44-φ49

2000

760

950

2325

2230

2150

74

1680

1170

48-φ49

Note: 1.Above flange ends dimensions accord to DIN2501.
2. ANSI B16.5 and ASME B16.47 are also available.


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