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Cryogenic gate valve

Cryogenic gate valve

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所属分类
Gate Valve
Describe
Product Usage
 
The low temperature gate valve is suitable for low temperature media such as methane, liquid natural gas, hexene, carbon dioxide, liquid ammonia, liquid oxygen, liquid nitrogen, liquid hydrogen.
 
Features
 
1. In order to prevent the abnormal rise of the middle cavity, a pressure relief hole is provided on the inlet side of the shutter.
 
2. Determine the top length of the bonnet according to the working temperature of the valve to ensure reliable sealing of the stem packing
 
3. Reasonable selection of materials for fillers, gaskets, etc. according to working temperature
 
4. Strictly control the chemical composition of materials and the mechanical properties of low temperature impact toughness.
 
5, using a variety of piping flange standards and sealing surface type, suitable for a variety of engineering needs
 
Performance parameter
 

model

DZ40Y-16

DZ40Y-25

Working pressure (MPa)

1.6

2.5

Applicable temperature (°C)

LC3≥-101,LCB≥-46,LCC≥-46,1Cr18Ni9Ti≥-196

material

filler

Teflon asbestos rope

Hand wheel

QT450-10

Stem nut

ZCuA110Fe3

Valve stem

1Cr18Ni9Ti

Gasket

Low temperature asbestos

Main shape and connection size

Nominal diameter

Main dimensions and connection dimensions

L

D

D1

D2

b

Z-d

H

D0

Z40Y-16L

20

150

105

75

55

14-2

4-Φ14

320

140

25

160

115

85

65

14-2

4-Φ14

350

160

32

180

135

100

78

16-2

4-Φ18

385

180

40

200

145

110

85

16-3

4-Φ18

420

200

50

250

160

125

100

16-3

4-Φ18

540

240

65

265

180

145

120

18-3

4-Φ18

610

240

80

280

195

160

135

20-3

8-Φ18

690

280

100

300

215

180

155

20-3

8-Φ18

780

300

125

325

245

210

185

22-3

8-Φ18

930

320

150

350

280

240

210

24-3

8-Φ23

980

360

200

400

335

295

265

26-3

12-Φ23

1180

400

250

450

405

355

320

30-3

12-Φ25

1390

450

300

500

460

410

375

30-3

12-Φ25

1620

580

350

550

520

470

435

34-4

16-Φ25

1810

640

400

600

580

525

485

36-4

16-Φ30

1970

640

Z40Y-25

20

150

105

75

55

16-2

4-Φ14

320

140

25

160

115

85

65

16-2

4-Φ14

350

160

32

180

135

100

78

18-2

4-Φ18

385

180

40

200

145

110

85

18-3

4-Φ18

420

200

50

250

160

125

100

20-3

4-Φ18

540

240

65

265

180

145

120

22-3

8-Φ18

610

240

80

280

195

160

135

22-3

8-Φ18

690

280

100

300

230

190

160

24-3

8-Φ23

780

300

125

325

270

220

188

28-3

8-Φ25

930

320

150

350

300

250

218

30-3

8-Φ25

980

360

200

400

360

310

278

34-3

12-Φ25

1180

400

250

450

425

370

332

36-3

12-Φ30

1390

450

300

500

485

430

390

40-4

16-Φ30

1620

580

350

550

550

490

448

44-4

16-Φ34

1810

640

400

600

610

550

505

48-4

16-Φ34

1970

640