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DH44Y American Standard Low Temperature Swing Check Valve

DH44Y American Standard Low Temperature Swing Check Valve
  • Stable quality: Implement full process quality monitoring, meticulous and comprehensive testing!
  • Reasonable price: Effective internal cost control, reduced expenses, and benefits customers!
  • Fast delivery: Advanced production line, sufficient stock, and shortened delivery time!
  • Hotline:021-57626888 / 021-57626886

Working principle and purpose of the product:

The American standard low-temperature swing check valve is a valve that can automatically prevent fluid backflow. The disc of the check valve opens under fluid pressure, and the fluid flows from the inlet side to the outlet side. When the pressure on the inlet side is lower than that on the outlet side, the valve disc automatically closes under factors such as fluid pressure difference and its own gravity to prevent fluid backflow.

DH44Y type 150 (Lb)~600 (Lb) low-temperature swing check valve is suitable for pipelines with unidirectional flow of medium, preventing medium backflow and preventing accidents.

Product structure characteristics:

1. The selection of materials is meticulous, meeting relevant domestic and international standards, and the overall quality of the materials is high.

2. The sealing pair is advanced and reasonable, and the sealing surfaces of the valve disc and valve seat are made of iron based alloy or Stellite cobalt based hard alloy surfacing. It has good wear resistance, high temperature resistance, corrosion resistance, scratch resistance, and long service life.

3. The product is designed and manufactured according to the standard GB/T12235.

4. Various piping flange standards and flange sealing types can be used to meet various engineering needs and user requirements.

5. The valve body material variety is complete, and the gasket can be reasonably selected according to actual working conditions or user requirements, which can be suitable for various pressure, temperature, and medium working conditions.

Product performance parameters:

model

nominal pressure

Normal temperature test pressure(MPa)

Low temperature test pressure(MPa)

Working temperature and applicable medium

housing

Sealing (gas)

Upper seal

DH44Y-150Lb

150

3.0

0.6

2.2

0.6

-46 ℃ ammonia liquid, ammonia, propane

-101 ℃ ethylene, carbon dioxide

-196 ℃ methane, nitrogen, liquefied natural gas

DH44Y-300Lb

300

7.5

0.6

5.5

0.6

DH44Y-600Lb

600

15.0

0.6

11.0

0.6

Main component materials:

Part Name

Valve body, valve cover

Gate, valve seat, valve stem

filler

material

A352-LCB
A352-LC3
A351-CF8

A182-F304

teflon

2016071308583742458.jpg


Main dimensions of the product:

Nominal Diameter

size

mm

in

L

D

D1

D2

b

f

n-Φd

H

DH44Y-150Lb

50

2

203

152

120.5

92

16

1.6

4-19

180

80

3

241

192

152.5

127

19

1.6

4-19

190

100

4

297

229

190.5

157

24

1.6

8-19

203

125

5

330

254

216

186

24

1.6

8-22

229

150

6

356

279

241.5

216

26

1.6

8-22

257

200

8

495

342

298.5

270

29

1.6

8-22

292

250

10

622

406

362

324

31

1.6

12-25

355

300

12

698

483

432

381

32

1.6

12-25

396

DH44Y-300Lb

50

2

267

165

127

92

23

1.6

8-19

178

80

3

318

210

168.5

127

29

1.6

8-22

216

100

4

356

254

200

157

32

1.6

8-22

241

125

5

400

279

235

186

35

1.6

8-22

267

150

6

444

318

270

216

37

1.6

12-22

305

200

8

533

381

330

270

42

1.6

12-25

368

250

10

622

445

387

324

48

1.6

16-29

394

300

12

711

521

451

381

51

1.6

16-32

445

DH44Y-600Lb

50

2

295

165

127

92

33

6.4

8-19

203

80

3

359

210

168

127

36

6.4

8-22

235

100

4

435

273

216

157

45

6.4

8-25

286

125

5

511

330

266.5

186

52

6.4

8-29

292

150

6

562

356

292

216

55

6.4

12-29

330

200

8

664

419

349

270

63

6.4

12-32

381

250

10

791

510

432

324

71

6.4

16-35

457

300

12

842

559

489

381

74

6.4

20-35

584

Related Information

Company address:

635 Jianghe Road Sijing Town Songjiang District Shanghai

Service hotline:

021-57626888 / 021-57626886

    Folg os:

Investment hotline(7*24)

021-67616666