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H74H Check Valve

Product Overview

Clamping ultra-thin check valve is a disc type ultra-thin check valve, using short structure size and single disc design, disc with O sealing ring, sealing performance is good, and the spring auxiliary close, the action is sensitive, especially for the installation of space restrictions most suitable for the place.
It has the advantages of simple structure, beautiful appearance, light weight and convenient installation.
Mainly used in water supply system, petroleum, chemical industry, metallurgy and other fields.

Structural characteristics

1. Reasonable product structure, reliable sealing, excellent performance and beautiful appearance;
2, the surface welding Co base hard alloy, wear resistance, corrosion resistance, abrasion resistance, long service life;
3. The built-in pin shaft structure reduces the leakage point and ensures reliable use;
4. When the pressure is ≥ 16.0mpa, the valve cavity adopts self-tightening sealing structure. The higher the medium pressure is, the better the sealing performance will be.
5. The material, flange and butt welding end size of the parts can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.

Execution standard

Design Specification: API 6D, ASMEB 16.34
Pressure-temperature rating: ASME B16.34, API608
Structure length: ASME B16.10, GB12221
Butt weld end form: ASME B16.25, ASME B31.4/31.8
Inspection and Testing: API 598, API 6D, GB13927
Fire resistance test: API 607, API 6FA

Performance parameter

Main material: carbon steel/stainless steel
Nominal diameter: DN50 ~ DN600mm
Pressure range: PN1.0 ~ PN4.0mpa
Operating temperature: -29℃ ~ 425℃
Applicable medium: water, oil, steam, nitric acid, etc

Product Dimensions

DN(mm)

L

D1

D

PN1.0、1.6MPa

PN2.5、4.0MPa

1.0MPa

1.6MPa

2.5MPa

4.0MPa

50

19

19

25

109

109

109

109

65

19

19

38

129

29

129

129

80

19

19

46

144

144

144

144

100

19

19

71.5

164

164

170

170

125

19

19

95

194

194

196

196

150

19

29

114

220

220

226

226

200

29

29

140

275

275

286

293

250

29

38

188

330

331

343

355

300

38

51

216

380

386

403

420

350

44

51

263

440

446

460

477

400

51

51

305

491

495

517

549

450

60

76

356

541

558

567

574

500

64

83

406

596

620

622

626

600

70

90

482

698

732

734

745

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