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低温闸阀

低温闸阀适用于甲烷、液态天然气、已烯、二氧化碳、液氨、液氧、液氮、液氢等低温介质。


【产品特点】
1、为防止中腔异常升压,在闸板的进口侧设置了泄压孔;
2、根据阀门的工作温度确定阀盖的顶部长度,确保阀桿填料的可靠密封;
3、根据工作温度合理选用填料,垫片等零件的材料;
4、严格控制材料的化学成份及低温冲击韧性等力学性能指标;
5、采用多种配管法兰标准及密封面型式,适用于各种工程需要。

Products and services that meet fluid control requirements

Each process, each facility, and each environmental constraint has its own special requirements. Therefore, Dongyan offers a comprehensive range of products covering different performance levels, pressures, different functions and different materials.

Detail

用途与性能规范

【性能参数】

型号

DZ40Y-16

DZ40Y-25

工作压力(MPa)

1.6

2.5

适用温度(℃)

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

材料

填料

浸四氟乙烯石棉绳

手轮

QT450-10

阀杆螺母

ZCuA110Fe3

阀杆

1Cr18Ni9Ti

垫片

低温石棉


【主要外形和连接尺寸】

公称通径

主要外形尺寸和连接尺寸

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


【结构图片】

低温闸阀.jpg

Product Application Scope

These devices are suitable for accurately controlling media such as gases, liquids, steam, etc., and maintaining process parameters such as pressure, flow rate, temperature, and liquid level at given values. Especially suitable for work environments where the allowable pressure difference is small and the allowable leakage is also small, and the pressure difference is not significant.

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