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Carbon steel bellows globe valve

The release date:[2017-08-07]     hits

Carbon steel bellows globe valve Model: WJ41H-16C

I. Introduction:

Carbon steel bellows cut-off valve is also known as bellows sealing shut-off valve, through automatic rolling welding, in the fluid medium and the atmosphere between the formation of a metal barrier to ensure that the stem zero leakage design. GB carbon steel bellows globe valve, bellows globe valve parameters, Wenzhou bellows valve

Bellows cut valve internal use of the bellows structure, the lower end of the stainless steel bellows welded to the stem, to prevent the process of fluid erosion stem. The other end placed between the valve body and the valve cover to form a static seal. Bellows cut-off valve with double seal design, when the bellows leakage valve stem packing will also avoid leakage, bellows welded to the valve stem, not only to maintain a stable operating performance, but also to avoid the valve plug vibration caused by stem vibration. Bellows cut-off valve for steam, flammable, explosive, heat transfer oil, high purity, toxic and other media on the pipeline. GB carbon steel bellows globe valve, bellows globe valve parameters, Wenzhou bellows valve

Second, the bellows valve features:

1, bellows cut valve product design reasonable structure, not only good sealing and reliable performance, and handsome in appearance;

2, the bellows cut-off valve sealing surface welding Co-based carbide, wear, corrosion resistance, anti-friction performance is good, the use of long life;

3, bellows valve stem valve quenching and surface nitriding treatment, a good anti-corrosion and anti-friction properties, greatly reduce the loss;

4, right angle German standard bellows valve with double seal, the valve performance is more reliable; GB carbon steel bellows globe valve, bellows globe valve parameters, Wenzhou bellows valve

5, bellows globe valve stem position indicator, more intuitive;

6, corrugated pipe cut-off valve parts material, flange and butt welding number size according to the actual conditions or user requirements reasonable matching, to meet national standards to meet the needs of various projects.

Third, the advantages of bellows cut-off valve: When the need to use the bellows in the horizontal pipe closing valve Electric shut-off valve is a relatively new type of cut-off valve, it has its own structure of some of the unique advantages, such as switch without friction, Seal is not easy to wear, opening and closing torque is small. This reduces the size of the actuator.

Fourth , the national standard bellows valve technical specifications

structure type

BB-BG-OS Y

Drive mode

Manual

design standards

GB12235

Structure length

GB12221

Connecting flange

GB9113, JB / T79, HG20596

Test and test

JB / T 9092, GB / T13927

Fifth , the national standard bellows valve performance specifications

Nominal pressure (MPa)

Shell test pressure (MPa)

Seal test pressure (MPa)

Applicable temperature (℃)

1.6

2.4

1.76


≤ 350 ℃

2.5

3.75

2.75

4.0

6.0

4.4

6.4

9.6

7.

、国标波纹管截止阀 主要零部件材质

序号

名称

材质

1

阀体

WCB、WC6、WC9、C5 CF8、CF8M、CF3、CF3M

2

阀瓣

25、1Cr13、2Cr13 1Cr18Ni9Ti、 0Cr18Ni12Mo2Ti 20Cr1Mo1V、25Cr2MoV

3

轴销

25、1Cr13、2Cr13 1Cr18Ni9Ti、 0Cr18Ni12Mo2Ti 20Cr1Mo1V、25Cr2MoV

4

阀杆

25、1Cr13、2Cr13 1Cr18Ni9Ti、 0Cr18Ni12Mo2Ti 20Cr1Mo1V、25Cr2MoV

5

波纹管组件

1Cr18Ni9Ti、304、316、304L、316L

6

垫片

柔性石墨+不锈钢、PTFE

7

阀盖

WCB、WC6、WC9、C5 CF8、CF8M、CF3、CF3M

8

双头螺栓

0Cr18Ni9Ti、0Cr18Ni12Mo2Ti 35CrMoV、25Cr2MoV

9

六角螺母

0Cr18Ni9Ti、0Cr18Ni12Mo2Ti 35CrMoV、25Cr2MoV

10

填料

柔性石墨

11

填料压盖

WCB、WC6、WC9、C5 CF8、CF8M、CF3、CF3M

12

阀杆螺母

铜合金

13

手轮

WCB、QT400-18

七、波纹管截止阀规格尺寸表

型号

GWJ41-16

压力等级

PN16

口径

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

L

130

150

160

180

200

230

290

310

350

400

480

600

730

850

980

H

190

195

225

260

280

310

340

395

435

470

535

590

630

680

720

W

120

140

140

180

200

220

260

280

300

340

400

450

450

500

500

重量(Kg)

5

5

5.5

11

13.5

19

26

36

46

74

102

168

270

420

620

型号

GWJ41-25

压力等级

PN25

口径

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

L

130

150

160

180

200

230

290

310

350

400

480

600

730

850

980

H

190

195

225

260

280

310

340

395

435

470

535

590

630

680

720

W

120

140

140

180

200

220

260

280

300

340

400

450

450

500

500

重量(Kg)

5

5

5.5

11

14

20

, 27

37

48

77

105

172

3100

520

690

型号

GWJ41-40

压力等级

PN40

口径

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

L

130

150

160

180

200

230

290

310

350

400

480

600

730

850

980

H

190

195

225

260

280

310

340

395

435

470

535

590

630

680

720

W

120

140

140

180

200

220

260

280

300

340

400

450

450

500

500

重量(Kg)

5

5

5.5

11

14.5

21

28

39

50

80

108

176

350

590

790

Contact us

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Post box: rtv@zjrtfm.com
The ministry of foreign trade:0577-8588 8220 / 0577-8588 8221
E-mail: valve@zjrtfm.com / monica@zjrtfm.com
Web site: www.dekainu.com
Address:Block B-16, Airport New Area, Longwan District, Wenzhou City, Zhejiang Province (Jinhai Erdao 11 Road)

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