PQ340H cast steelEccentric Semi-Globe ValveBy turning the worm gear mechanism, drive the eccentric hemisphere rotation, so as to realize the opening and closing of the valve, the valve flow resistance is small, reliable sealing, stable performance, is widely used in a variety of fluid control systems. Eccentric hemispherical valve using eccentric valve body, eccentric ball and seat, the valve stem for rotary motion in the common trajectory of automatic centering, the tighter the closing process, to achieve good sealing purpose. Valve ball and seat detachment, eliminating the wear and tear of the sealing ring, overcoming the traditional ball valve seat and ball sealing surface is always wear and tear of the problem of non-metallic elastic materials are embedded in the metal seat, the valve seat metal surface is well protected. This product is especially suitable for steel industry, aluminum industry, fibers, tiny solid particles, pulp, coal ash, petroleum gas and other media.

Product Characteristics

  • 流通面积大,流阻小。这是因为开启后阀芯位于藏球室,流体直通。
  • 操作扭矩小,转90度即可启闭完成,操作轻便。
  • 密封严紧,双偏心金属硬密封。结构不影响启闭,这是半ball valvesThe most significant advantage.
  • 使用寿命长,密封副耐磨,且有补偿量,阀座可调整或更换。

Product Parameters

产品型号

PQ340H-16C

阀体材质

铸钢

公称压力

≤1.6Mpa

适用介质

水、蒸汽、油品

适用温度

≤325°C

Product Size Reference

DN

L

H

D

D1

D2

T-f

n-Фd

50

178

155

165

125

102

18-3

4-18

65

190

165

185

145

122

18-3

8-18

80

203

190

200

160

138

20-3

8-18

100

229

200

220

180

158

20-3

8-18

125

254

265

250

210

188

22-3

8-18

150

267

280

285

240

212

24-3

8-22

200

292

325

340

295

268

26-3

12-22

250

330

385

405

355

320

26-4

12-26

300

356

430

460

410

378

28-4

12-26

350

430

480

520

470

438

30-4

16-26

400

530

520

580

525

490

32-4

16-30

450

580

560

640

585

550

40-4

20-30

500

630

655

715

650

610

44-4

20-33

600

800

710

840

770

725

54-5

20-36

700

900

780

910

840

795

40-5

24-36

800

1000

840

1025

950

900

42-5

24-39

900

1100

1000

1125

1050

1000

44-5

28-39

1000

1200

1100

1255

1170

1115

46-5

28-42

1200

1300

1250

1485

1390

1350

52-5

32-48

1400

1500

1380

1685

1590

1530

58-5

36-48

1600

1800

1500

1930

1820

1750

64-5

40-56

1800

2100

1680

2130

2020

1950

68-5

44-56

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