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CN | EN

Flange Center Plate Butterfly Valve（Pneumatic）

Technical Parameters

Pressure range：CLASS150~CLASS600 (PN6~PN16)

Nominal diameter：NPS2"~120"(DN50~DN3000)

Body material：Carbon steel, Stainless steel, Duplex stainless steel, Alloy steel, Ductile iron

End connection：Flange

Temperature range: -40℃~120℃

Drive type：Pneumatic device

Design standard：API 609，AWWA C504，GB/T12238，GB/T13927



Product Details

Product Structure Features

1.Driving device：Can be equipped with a handle, worm gear, electric or pneumatic control device.

2.Bushing：Reduce the rotational torque, support the stem, and make it separate from the body effectively, reduce the wear of the valve stem.

3.Surface of disc axle hole：After polishing treatment, with the seat precision.

4.High precision disc external profile：To achieve zero leakage requirements of air tightness test. The opening and closing torque is small, prolong the service life of the seat.

5.Stem seal：Stem seal is not easy to deform, thereby avoiding the usual stem leakage.

6.Strong precision key：The utility model has the advantages of high precision and high strength, and is suitable for the installation of the handle and other control devices.

7.Precision taper pin：The utility model is characterized in that the valve rod and the valve plate are firmly connected with the valve plate, and the utility model has the characteristics of anti vibration and easy replacement.

8.Integral stem design：High precision, high reliability, easy to control the opening and closing of the valve plate.

9.Body lined with rubber seat:Good overall stability, stable, tensile, anti leakage.

10.O-ring:Auxiliary shaft end leakage.


Main external connection dimensions

Nominal diameter

Length

Dimensions(Reference)


Connection size (standard value)

WT
kg

0.6MPa

1.0MPa

1.6MPa

mm

in

L

C

B

A

D

D1

D2

D3

n-d

D1

D2

D3

n-d

D1

D2

D3

n-d

50

2

108

82.5

338

180

65

140

110

88

4-14

165

125

99

4-18

165

125

99

4-18

14

65

2-1/2

112

92.5

358

180

65

160

130

108

4-14

185

145

118

4-18

185

145

118

4-18

16

80

3

114

100

413

245

72

190

150

124

4-18

200

160

132

8-18

200

160

132

8-18

17

100

4

127

110

428

240

72

210

170

144

4-18

220

180

156

8-18

220

180

156

8-18

21

125

5

140

125

444

240

72

240

200

174

8-18

250

210

184

8-18

250

210

184

8-18

27

150

6

140

142.5

553

350

93

265

225

199

8-18

285

240

211

8-22

285

240

211

8-22

29

200

8

152

170

678

350

93

320

280

254

8-18

340

295

266

8-22

340

295

266

12-22

50

250

10

250

197.5

742

550

350

375

335

309

12-18

395

350

319

12-22

405

355

319

12-26

69

300

12

270

222.5

803

600

350

440

395

363

12-22

445

400

370

12-22

460

410

370

12-26

91

350

14

290

252.5

866

600

350

490

445

413

12-22

505

460

429

16-22

520

470

429

16-26

110

400

16

310

282.5

940

600

350

540

495

463

16-22

565

515

480

16-26

580

525

480

16-30

138

450

18

330

307.5

995

750

380

595

550

518

16-22

615

565

530

20-26

640

585

548

20-30

175

500

20

350

335

1058

750

380

645

600

568

20-22

670

620

582

20-26

715

650

609

20-33

210

600

24

390

390

1163

750

380

755

705

667

20-26

780

725

682

20-30

840

770

720

20-36

275

700

28

430

447.5

1283

750

380

860

810

772

24-26

895

840

794

24-30

910

840

794

24-36

530

800

32

470

507.5

1398

750

380

975

920

878

24-30

1015

950

901

24-33

1025

950

901

24-39

590

900

36

510

557.5

1498

1250

380

1075

1020

978

24-30

1115

1050

1001

28-33

1125

1050

1001

28-39

1400

1000

40

550

615

1608

1500

580

1175

1120

1078

28-30

1230

1160

1112

28-36

1255

1170

1112

28-42

1650

1200

48

630

727.5

1876

1500

580

1405

1340

1295

32-33

1455

1380

1328

32-39

1485

1390

1328

32-48

2140


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