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Flue gas desulfurization butterfly valve

Products > Butterfly valve > Flue gas desulfurization butterfly valve

Flue gas desulfurization butterfly valve

Model: D371X
Nominal diameter: DN40 ~ 1000mm
Nominal: PN0.6 ~ 1.6MPa
Main material: cast iron, carbon steel, stainless steel, alloy steel
Operation: manual, worm gear, electric, pneumatic and other
Design and manufacturing standards: GB / T 12238-2008
Construction length standard: GB / T 12221-2005
Connection flange standard: GB / T 9113
Pressure and temperature level: GB / T 12224-2005
Test and test standards: GB / T 13927-2008
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Desulfurization butterfly valve Applications:

It can be widely used in regulating and intercepting flow lines in hydropower, sewage, construction, air conditioning, petroleum, chemical, food, medicine, textile, paper making and water supply and drainage. Gas, oil and other media, suitable temperature -20 ~ 80 ℃. By replacing the valve plate seals, O-rings, disc, shaft and other materials, applicable to a variety of media and different temperatures. Automatic valve control equipped with high-quality electric actuators or double-acting pneumatic actuators, automatic and manual dual opening and closing functions can be achieved.
 

Desulfurization butterfly valve structure features:

The main structure is composed of valve body, valve disc, valve seat, valve stem and transmission operation mechanism and other components. The valve seat adopts detachable structure, and according to the physical and chemical characteristics of different media, the corresponding high temperature resistance, low temperature resistance, corrosion resistance , Light, anti-aging materials.

Valve ductile iron shell inside and outside the surface can be high temperature electrostatic spraying epoxy powder coating, the coating has high corrosion resistance, and ductile iron matrix has a very high bonding strength, coating degree of 0.2-0.5mm.

1, the use of neutral structure without eccentric design, with significant characteristics of low operating torque, electric device configuration when the economy is significant; 
 2, a reasonable design, compact structure, easy installation and removal, easy maintenance; 
 3, , Butterfly plate circumferential sealing surface precision machining to a higher finish, the friction coefficient of the rubber valve seat is very low, longer valve life; 
 4, valve plate sealing surface flow characteristics of a linear state, with a smaller flow resistance Coefficient, valve flow resistance is small; 
 5, a unique design of the molded rubber valve seat has excellent balance and support, effectively avoid the force caused by the rubber damage, the valve at the fully closed position, the rubber in the best to maintain the compressed state zero leakage; 
 6, the two-port valve sealing surface projecting rubber flange ductile iron, no additional valve rubber gasket installed in the pipe 
 7, the valve operating mechanism flexible choice; 
 8, valve attractive appearance resistance Corrosive. 


 The main form of connection size
                      unit: mm

DN

L

H

HO

A

B

0.6MPa

1.0MPa

1.6MPa

DO

nd

DO

nd

DO

nd

50

43

63

306

180

200

110

4-14

125

4-18

125

4-18

65

46

70

321

180

200

130

4-14

145

4-18

145

4-18

80

46

83

346

180

200

150

4-18

160

8-18

160

8-18

100

52

105

387

180

200

170

4-18

180

8-18

180

8-18

125

56

115

411

180

200

200

8-18

210

8-18

210

8-18

150

56

137

447

270

280

225

8-18

240

8-22

240

8-22

200

60

164

572

270

280

280

8-18

295

8-22

295

8-22

250

68

206

646

270

280

335

12-18

350

12-22

355

12-26

300

78

230

738

380

420

395

12-22

400

12-22

410

12-26

350

78

248

761

380

420

445

12-22

460

16-22

470

16-26

400

102

289

877

450

470

495

16-22

515

16-26

525

16-30

450

114

320

938

480

490

550

16-22

565

20-26

585

20-30

500

127

343

993

480

490

600

20-22

620

20-26

650

20-33

600

154

413

1131

480

490

705

20-26

725

20-30

770

20-36

700

165

478

1476

640

660

810

24-26

840

24-30

840

24-36

800

190

525

1533

640

660

920

24-30

950

24-33

950

24-39

900

203

585

1655

750

860

1020

24-30

1050

28-33

1050

38-39

1000

216

640

1765

850

900

1120

28-30

1160

28-36

1170

28-42

1200

254

755

1995

850

900

1340

32-33

1380

32-39

1390

32-48


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