Oxygen ball valve dimensions and structural features

Oxygen ball valve is a special oxygen pipe network. In addition to its common ball valve function, it also has the characteristics of good flame retardance, good electrical conductivity, fast heat transfer, compact structure, oil proof, safe and reliable. With the development of metallurgical industry, oxygen ball valve and oxygen special globe valve are widely used in steel, metallurgy, medicine, chemical industry.

Oxygen ball valve implementation of the standard

1, design and manufacture by: JB / T10530

2, flange size press: JB / T79, JB / T82

3, the length of the structure according to: GB / T12221

4, inspection and test by: JB / T9092

Oxygen special ball valve features

1, with all the features of a common ball valve

2, with static safety devices, to avoid sparks due to static electricity

3, all parts using strict degreasing treatment

Oxygen ball valve main performance specifications

Nominal pressure PN (MPa)

Strength test pressure MPa

Gas seal test pressure MPa

Suitable media

proper temperature

water

gas

oxygen

Room temperature

0.6

0.9

0.6

1.0

1.5

1.0

1.6

2.4

1.6

2.5

3.8

2.5

4.0

6.0

4.0

Oxygen ball valve parts of the main material

name

material

Body

Stainless steel, copper alloy

Sphere

Stainless steel, copper alloy

Sealing ring

Teflon

Valve stem

stainless steel

filler

Teflon

QY41F oxygen special ball valve belongs to the special oxygen pipeline valve, in addition to the characteristics of a common valve, but also because it uses a good quality copper material manufacturing, but also has corrosion resistance, good flame retardant properties, good conductivity, fast heat transfer advantages , Making the oxygen valve has become the oxygen pipeline engineering system ideal equipment.

Qy41F型浮动式氧气球阀结构图

Qy41F floating oxygen ball valve structure

Qy41F floating oxygen ball valve Dimensions:

Nominal pressure MPa

Nominal diameter DN (mm)

D

D1

D2

K

L

L1

f

f1

C

Zd

H

1.6

15

95

45

-

65

140

100

2

-

14

4-14

59

20

105

55

75

152

160

2

14

4-14

63

25

115

65

85

165

160

2

14

4-14

75

32

135

78

100

178

250

2

16

4-18

85

40

145

85

110

190

250

3

16

4-18

95

50

160

100

125

216

300

3

16

4-18

107

65

180

120

145

241

300

3

18

4-18

142

80

195

135

160

283

400

3

20

8-18

152

100

215

155

180

305

400

3

20

8-18

178

125

245

185

210

381

1000

3

twenty two

8-18

252

2.5

15

95

45

-

65

140

100

2

-

16

4-14

59

20

105

55

75

152

160

2

16

4-14

63

25

115

65

85

165

160

2

16

4-14

75

32

135

78

100

178

250

2

18

4-18

85

40

145

85

110

190

250

3

18

4-18

95

50

160

100

125

216

300

3

20

4-18

107

65

180

120

145

241

300

3

twenty two

8-18

142

80

195

135

160

283

400

3

twenty two

8-18

152

100

230

160

190

305

400

3

twenty four

8-23

178

125

270

188

220

381

1000

3

28

8-25

252

4.0

15

95

45

40

65

140

100

2

4

16

4-14

59

20

105

55

51

75

152

160

2

4

16

4-14

63

25

115

65

58

85

165

160

2

4

16

4-14

75

32

135

78

66

100

178

250

2

4

18

4-18

85

40

145

85

76

110

190

250

3

4

18

4-18

95

50

160

100

88

125

216

300

3

4

20

4-18

107

65

180

120

110

145

241

300

3

4

twenty two

8-18

142

80

195

135

121

160

283

400

3

4

twenty two

8-18

152

100

230

160

150

190

305

400

3

4.5

twenty four

8-23

178

125

270

188

176

220

381

1000

3

4.5

28

8-25

252

Qy47F-type fixed oxygen ball valve for the metallurgical industry at room temperature oxygen transport needs developed and developed a special valve. The use of high-quality materials, advanced structure, special technology and testing means that the type of ball valve with the original metallurgical enterprises more than the closure of the copper valve opening and closing quickly, flexible, reliable seal, compact structure, small flow resistance and other advantages. According to the particularity of oxygen delivery, the ball valve design has anti-static, fire-resistant structure, the parts are strictly degreased in the assembly process. The valve body and other components are made of high quality stainless steel and pickled, passivated, inspected and tested with pure tap water without any oil for high pressure seal test, with 0.6Mpa gas leak test, the valve should be leak-free; After the above special process, Such ball valve is not only fast and flexible operation, small flow resistance, safe, reliable, and long service life (Seal Vice scouring small).

Qy47F型固定式氧气球阀结构图

Qy47F-type fixed oxygen ball valve structure

Qy47F-type fixed oxygen ball valve Dimensions:

Nominal pressure MPa

Nominal diameter DN (mm)

D

D1

D2

K

L

f

f1

C

Zd

H

H1

4.0

125

270

188

176

220

381

3

4.5

28

8-25

252

195

150

300

218

204

250

403

3

4.5

30

8-25

272

215

200

375

282

260

320

502

3

4.5

38

12-30

398

295

250

445

345

313

385

568

3

4.5

42

12-34

495

335

300

510

408

364

450

648

4

4.5

46

16-34

580

385

350

570

465

422

510

762

4

5

52

16-34

625

430

400

655

535

474

585

838

4

5

58

16-41

720

470

450

680

560

524

610

914

4

5

60

20-41

820

560

Oxygen ball valve structure features:

1, double blocking and emissions

Fixed ball valve with spring preload floating valve seat, regardless of the valve is fully open or fully closed state, the upstream and downstream side of the valve seat to block the fluid, the valve body cavity retentate discharge through the drain valve.

2, automatic pressure relief

Valve body cavity to stay the medium temperature rise caused abnormal pressure rise, do not need to pass the safety valve, but the valve seat can automatically pressure relief, which is to ensure the safety of the valve in the liquid medium is very important.

3, fire safety

The valves are equipped with fire safety functions. Their design and manufacture strictly follow the API 607 ​​and API 6FA specifications and are tested by authoritative organizations.

4, sealed emergency ambulance

Due to accidental failure of the seat seal due to foreign matter or fire in the medium, the grease injection valve provides a quick connection to the grease gun and quickly and easily injects the sealing grease into the seat sealing area to relieve the leak.

5, reliable stem seal and low operating torque

In addition to the standard seal ring, the packing gland is also provided with "O" ring seal, double seal to ensure the reliability of the stem seal; additional graphite packing and sealing grease into the post-fire stem leakage reduced to lowest. Stem plain bearings and thrust bearings make the valve easy to operate.

6, full diameter or reduced diameter

According to the need to choose full diameter or reduced diameter structure. Full-diameter valve flow diameter and pipeline diameter, easy to clean the pipeline.

7, stem lengthened

According to the needs of installation or operation, the valve stem can be lengthened. Extra-long ball valve, especially for urban gas and other places need to be laid buried pipelines. Stem lengthened according to customer needs to determine.

8, flexible operation

The use of TEFLON seat and stem bearings with low coefficient of friction and good self-lubricating greatly reduces valve operating torque. Therefore, it is possible to operate the valve flexibly and freely for a long period of time even in the absence of sealing grease.

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