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Stainless steel ball valve

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Oxygen dedicated ball valve Oxygen turbine ball valve YQ341F

Date:[2016-10-20]    hits: Oxygen dedicated ball valve Oxygen turbine ball valve YQ341F

Oxygen turbine ball valve YQ341F

Nominal diameter: DN15-600

Nominal pressure: 0.6Mpa-4.0MPa

Applicable temperature: ≤ 150oC

Applicable medium: oxygen, nitrogen and so on

Inspection standard: JB / T9092-89

Body material: 0Cr18Ni9

Structure length: JB, GB, ANSI, BS, API, ISO, DIN, NF


Oxygen valve characteristics: the main features

1, the valve mainly by the valve body, bonnet, valve and other parts of the spherical valve body, even force.

2, the valve for manual operation, clockwise hand wheel, the valve is closed, counterclockwise rotation hand wheel, the valve opens.

3, DN50 the following ball bearings, DN150, DN200, DN300 and other large-caliber valve additional valve flap. Media flow from the top of the valve flap to the bottom.

4, in order to achieve good sealing performance in the structural design to guide the movement of the valve so that it can accurately fall on the valve seat, the valve flap in the body-oriented, the valve by the lateral flow of medium driving force , By the valve body and not by the stem to bear, which further increases the sealing performance and the possibility of packing seal.

5, the stem is designed to lower the stem, that is, when the stem does not turn when the lift, the valve with its movements, once again reducing the valve seat in motion and the friction seat to reduce the wear of the filler, while the seal wear may Reduced to a minimum.

6, in the body of the flange on the ground bolts are equipped with a bolt to be connected by wire to avoid sparks caused by static electricity explosion, the exposed parts of the stem are protective measures to prevent dust and oil , Stent bearings lubricated with fluorinated grease, frame frame installed plexiglass cover, there is a clear "ban oil" mark, to remind the attention of the scene.


First, the stainless steel ball valve oxygen Features:

Oxygen valve as the metallurgical industry in the delivery of oxygen pipeline on the opening and closing devices, compared to other common valves have many particularly stringent requirements. Because oxygen is flammable and explosive dangerous goods, it is necessary to prevent leakage, anti-static, anti-sparks, in order to avoid accidents. In the structure, the design is: valve stem open and close only when the stem does not rotate, effectively reducing the wear of the seal, packing wear and wear on the seal; side flange is equipped with grounding screws, to avoid static sparks; stem The exposed part of the sealed with plexiglass cover, to dust and oil. Technical parameters Valve body material 1Cr18Ni9Ti Nominal pressure PN (MPa) 2.5 Nominal diameter DN (mm) 15-400 Performance Description Features With a sealing performance, light and flexible operation, safe, reliable, long life and other advantages.

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Second, the implementation of stainless steel ball valve oxygen standards

Design and Manufacture

Face To Face

Flange Dimension

Pressure Temperature Lating

Inspection And Test

GB122237

GB12221

GB9113 JB79

GB9131

GB/T13927 JB/T9092

Third, the stainless steel ball valve oxygen pressure test:

NominalPressure

1.6

2.5

4.0

Shell Test

2.4

3.8

6.0

Water Seal Test

1.8

2.8

4.4

Air Seal Test

0.4-0.7

Fourth, the main parts of stainless steel ball valve oxygen material and performance:

 

Fifth, the stainless steel ball valve PN1.6MPa oxygen The main connection size and weight:

 

Nominal diameterDN

15

20

25

32

40

50

65

80

100

125

150

200

L

130

140

150

165

180

200

220

250

280

320

360

400

H

59

63

75

85

95

107

140

152

178

252

272

342

W

130

130

160

180

230

230

400

400

650

1050

1050

1410

Wt(㎏)

2.5

3

5

6

7

10

15

19

33

58

93

160

Sixth, the stainless steel ball valve PN2.5MPa The main connection size and weight:

Nominal diameterDN

15

20

25

32

40

50

65

80

100

125

150

200

L

130

140

150

165

180

200

220

250

320

400

400

550

H

59

63

75

97

107

142

152

178

252

272

342

345

W

130

130

160

230

230

400

400

700

1100

1100

1500

1500


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Seven, stainless steel ball valve PN4.0 MP The main connection size and weight: 

Nominal diameterDN

15

20

25

32

40

50

65

80

100

125

150

200

L

130

140

150

180

200

220

250

280

320

400

400

550

H

59

63

75

97

107

142

152

178

252

272

342

345

W

130

130

160

230

230

400

400

700

1000

1100

1500

1800


------------

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