Bi directional worm gear wafer butterfly valve

D371x bi directional worm gear wafer butterfly valve

Bi directional worm gear wafer butterfly valve

Product overview

D371x worm gear wafer butterfly valve adopts double eccentric structure, which has the sealing function of closing more tightly, and the sealing performance is reliable. Stainless steel and NBR oil resistant rubber are used as sealing materials, which have long service life. The rubber seal ring can be located on the valve body or butterfly plate. It can be used in different media for users to choose. The butterfly plate adopts frame structure with high strength, large flow area and small flow resistance. It can be used in different media as long as the sealing material of sealing valve seat is replaced. The valve has the function of two-way sealing. It is not controlled by the flow direction of medium or affected by the space position. It can be installed in any direction. The valve has unique structure, flexible operation, labor saving and convenience.


Structural features

D371x worm gear wafer butterfly valve adopts the sandwich center plate structure, which is mainly composed of valve body, valve plate, valve shaft, valve seat and transmission device. The structure is simple and compact, small and light, and convenient for transportation, installation and disassembly. It has the advantages of quick opening and closing, small operation torque, labor saving and light weight, good sealing performance, long service life and zero leakage. Its flow characteristics are similar to straight line, Good regulation performance. The valve is a rubber seal. When closed, the butterfly plate and valve seat have good sealing performance, two-way sealing performance is excellent, and the torque value is small. The valve maintains 100% zero leakage under working pressure, and the friction between butterfly plate and seat seal is small. The valve plate is driven by the valve shaft, and the valve plate rotates 90 degrees. The butterfly plate can be opened and closed flexibly without jamming and jumping, and the torque is small.


Purpose

Soft seal center line clip butterfly valve and double eccentric flange butterfly valve have compact structure, easy 90 ° rotary switch, reliable sealing and long service life. They are widely used in water supply and drainage and gas pipelines for regulating flow and intercepting medium in waterworks, power plants, steel mills, papermaking, chemical industry, light textile, food, etc.


Main shape and connection dimension

Bi directional worm gear wafer butterfly valve size


DN

L

H1

H

A

B

0.6MPa

1.0MPa

1.6MPa

DO

n-d

DO

n-d

DO

n-d

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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