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KPTYZ42H automatic leveling valve oil seal
Product Name:
KPTYZ42H automatic leveling valve oil seal
Description:

自动调平油密封闸阀  KPTYZ42H

 自动调平油密封闸阀特点:楔式自动调平油密封闸阀涉及一种输送气体管道的闸阀。针对现有闸阀存在着力矩大,密封不严密,工作压力低等缺点,而提出一种结构简单,制造维修方便,开关力矩小,密封性能好的楔式自动调平油密封闸阀。所采用技术方案是阀座(7)中间楔形孔装置有凸形闸板(4)和凹形闸板(8),阀座(7)的上面与靠阀体(6)的中腔壁处装有自动压油密封机构(9)。广泛用于输送气体管路中。

     自动调平油密封闸阀结构原理:是在现有楔式弹性闸阀结构的基础上发展出来的,即在现有楔式闸阀阀体的中腔丙阀座位置处,各装有一个自动压油密封润滑机构,这个机构盛有密封脂的油缸,可沿油缸内表面移动的活塞和阀座组成,当阀关闭时,阀体中腔内充满介质压力,在阀后,即阀的下游端,由于介持被切断,与中腔形成一个压力差值,在这压力差作用下,推动活塞向下运动,从而压缩油缸内的密封脂,通过阀座通道进入阀座密封面上形在密封油膜,从而实现密封。在阀体外部的前后部位,各装有一个密封脂补偿压入机构,当阀汇漏需补偿密封脂时,只需旋转压盖,密封脂便可通过阀体的油孔,进入阀座密封面上又实现了密封。

  主要特点及用途Characteristics and uses
试验压力Test pressure

公称压力PN(MPa)

试验压力(MPa)

壳体

密封(液)

密封(气)

上密封

1.6

2.4

1.8

O.6

1.8

2.5

3.8

2.8

2.8

4.0

6.O

4.4

4.4

6.4

9.6

7.O

7.0

10.O

15.0

11.O

1.O

16.0

24.0

18.0

18.0

适用范围Applicable scope

壳体材料

适用介质

适用温度(℃)

碳素钢(C型)

水、蒸汽、油品

≤425

铬镍钛钢(P型)

硝酸类

≤200

铬镍钼钛钢(R型)

醋酸类

≤200

铬钼钢(I型)

水、蒸汽、油品

≤550

铬钼钒钢(V型)

水、蒸汽、油品

≤570

主要零部件材料Material for main parts

阀体、阀盖

阀板、阀座

阀杆

阀杆螺母

填料

手轮

碳素钢

优质碳金钢+硬质合金或不锈钢

铬不锈钢

铝青铜

石墨石棉盘根

可锻铸铁

铬镍钛钢

不锈钢、不锈钢+硬质合金

铬镍钛不锈钢

铝青铜

浸聚四氟乙

可锻铸铁

铬镍钼钛钢

不锈钢、不锈钢+硬质合金

铬镍钼钛不锈钢

铝青铜

烯石棉盘根

球墨铸铁

铬钼钢

合金钢+硬质合金

铬钼钢

铝青铜

柔性石墨

球墨铸铁

铬钼钒钢

合金钢+硬质合金

铬钼钒钢

铝青铜

柔性石墨

球墨铸铁


外形及连接尺寸Main external and connecting dimensions

公称通径DN(mm)

主要外形尺寸和连接尺寸(mm)

重量(Kg)

L

D

D1

D2

b

f

Z-Φd

H

H1

D0

[K]PTYZ42H-16C/P/I

25

160

115

85

65

14

2

4-14

275

303

160

9

32

180

135

100

78

16

2

4-18

280

321

180

12

40

200

145

110

85

16

3

4-18

300

352

200

26.5

50

250

160

125

100

16

3

4-18

358

438

240

29

65

265

180

145

120

18

3

4-18

375

450

240

33

80

280

195

160

135

20

3

8-18

433

528

280

45

100

300

215

180

155

20

3

8-18

502

620

320

63

125

325

245

210

185

22

3

8-18

612

753

360

108

150

350

280

240

210

24

3

8-23

676

847

360

134

200

400

335

295

265

26

3

12-23

820

1039

400

192

250

450

405

355

320

30

3

12-25

969

1245

450

273

300

500

460

410

375

30

4

12-25

1142

1472

560

397

350

550

520

470

435

34

4

16-25

1280

1450

640

590

400

600

580

525

485

36

4

16-30

1452

1887

640

850

450

650

640

585

545

40

4

20-30

1541

5011

720

907

500

700

705

650

608

44

4

20-34

1676

2181

720

958

600

800

840

770

718

48

5

20-41

1874

2346

800

1112

700

900

910

840

788

50

5

24-41

2489

2700

900

1520

800

1000

1020

950

898

52

5

28-41

2643

2860

1000

1860

900

1100

1120

1050

998

54

5

28-41

2590

3170

1000

1900

1000

1200

1255

1170

1110

56

5

28-41

2750

3430

1100

2010

[K]PTYZ42H-25C/P/I

 

25

160

115

85

65

14

2

4-14

275

303

160

9

32

180

135

100

78

16

2

4-18

280

321

180

12

40

200

145

110

85

16

3

4-18

300

352

200

26.5

50

250

160

125

100

16

3

4-18

358

438

240

29

65

265

180

145

120

18

3

4-18

375

450

240

33

80

280

195

160

135

20

3

8-18

433

528

280

45

100

300

215

180

155

20

3

8-18

502

620

320

63

125

325

245

210

185

22

3

8-18

612

753

360

108

150

350

280

240

210

24

3

8-23

676

847

360

134

200

400

335

295

265

26

3

12-23

820

1039

400

192


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