Ventilation butterfly valve(Pneumatic)

Ventilation butterfly valve(Pneumatic)

Product model: D641W

Nominal diameter: DN100~3200mm

Pressure range: PN0.05~0.6MPa

Applicable temperature: -40~+450℃

Connection method: flange type

Applicable medium: coal gas, dusty gas, flue gas, etc.


Product Structure Features

The electric ventilation butterfly valve is designed in the form of a central line butterfly plate, making it have small flow resistance, large flow, and easy operation. It is often used in dust containing systems and cold or hot air gas pipelines in industries such as chemical, building materials, and power plants as a gas medium to regulate flow or cut off devices.


The Main Structure Features Include

1. The 90 degree swing opens quickly to meet the fast closing condition;

2. Bearing external structure prevents medium in the pipeline from entering the bearing;

3. Large diameter rolling bearings are used, with low friction and torque.



Main external connection dimensions

Nominal diameter

FacetoFace

(Standard)

Boundary dimensions (reference)

Connection dimensions

0.25MPa

0.6MPa

mm

inches

L

H

H0

A

B

D

D1

D2

Z-d

D

D1

D2

Z-d

50

2

108

70

286

125

193

140

110

88

4-14

140

110

88

4-14

65

21/2

112

80

306

125

193

160

130

108

4-14

160

130

108

4-14

80

3

114

95

334

125

193

190

150

124

4-18

190

150

124

4-18

100

4

120

105

354

125

193

210

170

144

4-18

210

170

144

4-18

125

5

120

120

384

125

193

240

200

174

8-18

240

200

174

8-18

150

6

120

132

409

125

193

265

225

199

8-18

265

225

199

8-18

200

8

140

160

593

165

183

320

280

254

8-18

320

280

254

8-18

250

10

140

187

650

165

283

375

335

309

12-18

375

335

309

12-18

300

12

170

220

715

165

283

440

395

363

12-22

440

395

363

12-22

350

14

170

245

814

175

334

490

445

413

12-22

490

445

413

12-22

400

16

190

270

863

175

334

540

495

463

16-22

540

495

463

16-22

450

18

190

297

918

175

334

595

550

518

16-22

595

550

518

16-22

500

20

190

322

1016

210

425

645

600

568

20-22

645

600

568

20-22

600

24

210

377

1128

210

425

755

705

667

20-26

755

705

667

20-26

700

28

210

430

1233

210

425

860

810

772

24-26

890

810

772

24-26

800

32

210

487

1344

210

425

975

920

878

24-30

975

920

878

24-30

900

36

250

537

1560

320

620

1075

1020

978

24-30

1075

1020

978

24-30

1000

40

250

587

1660

320

620

1175

1120

1078

28-30

1175

1120

1078

28-30

1200

48

250

687

1890

320

620

1375

1320

1280

32-30

1405

1340

1295

32-33

1400

56

300

760

2670

575

714

1575

1520

1480

36-30

1630

1560

1510

36-36

1600

64

300

895

2810

575

714

1790

1730

1690

40-30

1830

1760

1710

40-36

1800

72

300

995

2020

575

714

1990

1930

1890

44-30

2045

1970

1918

44-39

2000

80

300

1095

3220

656

810

2190

2130

2090

48-30

2265

2180

2125

48-42