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D371X Butterfly valve

Product Overview

D371X butterfly valve Our company developed the soft sealing center line intersecting butterfly valve, double eccentric flange butterfly is compact structure.90° rotary switch is easy, reliable sealing, long service life, widely used in water plants, power plants, steel mills, paper, chemical, food and other systems supply and drainage, as a regulation and cut-off use.

Structural characteristics

1. The valve adopts double eccentric structure, with the sealing function of tighter and tighter closing, and reliable sealing performance;
2. The sealing accessory material is made of stainless steel and nitrile oil-resistant rubber, with a long service life.
3, rubber sealing ring can be located in the valve body, also can be located in the butterfly plate, can be suitable for different characteristics of media, for users to choose;
4, butterfly plate adopts frame structure, high strength, large flow area, small flow resistance.
5, the overall baking paint, can effectively prevent corrosion and as long as the replacement of sealing seat material, can be used in different media;
6. The valve body has two-way sealing function.The installation is not controlled by the flow direction of the media, nor affected by the spatial position. It can be installed in any direction.
7. The valve has unique structure, flexible operation, labor-saving and convenient.

Execution standard

Design specification: GB/T 12238
Structure length: GB/T 12221
Flange connection: GB/T9113, JB/T172416
Test and inspection: GB/T 13927

Performance parameter

Nominal diameter: DN50~1200mm
Nominal pressure: PN0.6~ 4.0mpa
Applicable temperature: ≤120℃
Main materials: WCB, QT450-10, HT200, HT250
Applicable medium: air, water, sewage, steam, gas, oil, etc

Product Dimensions

DN

Dimensions

Connection size

ΦD

L

H

H1

A

B

0.6MPa

1.0MPa

1.6MPa

50

43

77

309

180

200

88

99

99

65

46

85

320

180

200

108

118

118

80

46

95

340

180

200

124

132

132

100

52

105

360

180

200

144

156

156

125

56

129

405

180

200

174

184

184

150

56

132

450

270

280

199

211

211

200

60

165

607

270

280

254

266

266

250

68

197

659

270

280

309

319

319

300

78

234

742

380

420

363

370

370

350

78

283

792

380

420

413

429

429

400

102

325

887

450

470

463

480

480

450

114

369

935

480

490

518

530

548

500

127

404

985

480

490

568

582

609

600

154

470

1243

480

490

667

682

720

700

165

503

1346

640

660

772

794

794

800

190

571

1466

640

660

878

901

901

900

203

621

1565

750

860

978

1001

1001

1000

216

702

1781

850

900

1078

1112

1112

1200

254

818

1965

850

900

1295

1328

1328

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