Natural Gas Ball Valve
Natural gas ball valve
[Natural gas ball valve product overview]
Natural gas ball valves are used in the mining, refining, processing and pipeline transportation systems of natural gas and liquefied gas; in the production of chemical products, medicine and food; in the power production systems of hydropower, thermal power and nuclear power; in the water supply, drainage and water supply of cities and industrial enterprises. It is widely used in heating and gas supply systems; in farmland drainage and irrigation systems; and in metallurgical production systems. It is an important mechanical product closely related to production and construction, national defense construction and people's lives. Ball valves are used in various pipeline systems to cut off or connect the flow of media, so that the media can be transported to various designated points according to predetermined procedures.
[Main features of natural gas ball valve]
The ball and valve seat treated with special technology are especially suitable for higher temperatures and media containing various dusts and solid particles.
1. Adopting a specially designed compensating movable metal valve seat structure, the sealing is reliable.
2. This series of ball valves should be used according to the specified flow direction.
3. This series of ball valves can be equipped with a variety of driving devices.
[Main parts and materials of natural gas ball valve]
| NO. | part | materail | |
| GB | ASTM | ||
| 1 | valve body | WCB | A216-WCB |
| 2 | sealing ring | flexible graphite | flexible graphite graphite PTFE |
| 3 | valve seat | 1Cr18Ni9Ti | 304 |
| 4 | sphere | 2Cr13 | A276-420 |
| 5 | nut | 35 | A194-2H |
| 6 | studs | 35CrMoA | A193-B7 |
| 7 | seat cushion | 1Cr18Ni9Ti | 304 |
| 8 | spring | 60Si2Mn | AISI 9260 |
| 9 | Gasket | flexible graphite+steel | B12.10-304/F.G |
| 10 | filler | flexible graphite | flexible graphite |
| 11 | Packing gland | WCB | A216-WCB |
| 12 | retaining ring | 65Mn | AISI 1066 |
| 13 | Stem | 1Cr13 | A276-410 |
| 14 | screws | 35 | A193-B7 |
[Performance range of natural gas ball valve]
| Pressure Level | Nominal pressure(PN) | pound class(Class) | ||||||||
| 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 150 | 300 | 400 | 600 | ||
| test pressure | Shell test | 2.4 | 3.75 | 6.0 | 9.6 | 15.0 | 3.03 | 7.5 | 10.2 | 15.0 |
| Sealing test | 1.76 | 2.75 | 4.4 | 7.04 | 11.0 | 2.2 | 5.5 | 7.48 | 11.0 | |
| Applicable working conditions | Applicable media | Pulp, slurry, dust and media containing various solid particles | ||||||||
| proper temperature | -196～≤550℃ | |||||||||
| Applicable specifications | Design and manufacturing press | GB12237-89 | API 6D | JP17S-48 | ||||||
| Flange size according to | JB79-59,GB9113 ,HG20592-07 | ANSI B16.5 | JIS B2212-2214 | |||||||
| Structure length according to | GB12221-89 | ANSI B16.10 | JIS B2002 | |||||||
| Inspection test button | JB/T9092-99 | API 598 | ||||||||
[Main connection dimensions of natural gas ball valve]
PN1.6MPa Main connection dimensions and weight：
|
Nominal diameter DN
|
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
|
142
|
152
|
178
|
252
|
272
|
342
|
|
W
|
130
|
130
|
160
|
180
|
230
|
230
|
400
|
400
|
650
|
1050
|
1050
|
1410
|
|
Wt(Kg)
|
2.5
|
3
|
5
|
6
|
7
|
10
|
15
|
19
|
33
|
58
|
93
|
160
|
PN2.5MPa Main connection dimensions and weight：
|
Nominal diameter DN
|
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
|
|
Wt(Kg)
|
2.5
|
3
|
5
|
6
|
7.5
|
10
|
15
|
20
|
33
|
60
|
93
|
175
|
|
Nominal diameter DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
|
L
|
130
|
140
|
150
|
180
|
200
|
220
|
250
|
280
|
320
|
400
|
400
|
400
|
|
H
|
59
|
63
|
75
|
85
|
95
|
107
|
142
|
152
|
178
|
252
|
272
|
342
|
|
W
|
130
|
130
|
160
|
230
|
230
|
400
|
400
|
700
|
1100
|
1100
|
1500
|
1500
|
|
Wt(Kg)
|
3
|
4
|
5
|
7
|
9
|
12
|
18
|
28
|
46
|
75
|
106
|
190
|
PN6.4MPa Main connection dimensions and weight：
|
Nominal diameter DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
|
L
|
165
|
190
|
216
|
229
|
241
|
292
|
330
|
356
|
432
|
508
|
559
|
660
|
|
H
|
59
|
63
|
75
|
97
|
107
|
142
|
152
|
178
|
252
|
272
|
305
|
398
|
|
W
|
130
|
130
|
160
|
230
|
230
|
400
|
400
|
700
|
1100
|
1100
|
1500
|
1800
|
|
Wt(Kg)
|
6.5
|
7
|
8
|
12
|
14
|
18
|
28
|
40
|
65
|
98
|
140
|
250
|
PN10MPa Main connection dimensions and weight：
|
Nominal diameter DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
|
L
|
165
|
190
|
216
|
229
|
241
|
292
|
330
|
356
|
432
|
508
|
559
|
660
|
|
H
|
59
|
63
|
75
|
97
|
107
|
142
|
152
|
178
|
252
|
272
|
305
|
398
|
|
W
|
130
|
130
|
160
|
230
|
230
|
400
|
400
|
700
|
1100
|
1100
|
1500
|
1800
|
|
Wt(Kg)
|
6.5
|
7
|
10
|
15
|
18
|
25
|
32
|
46
|
75
|
|
|
[Installation of natural gas ball valve]
The installation of valves is the same as the installation of other mechanical equipment. There is an installation posture problem. The correct posture for valve installation should be that the internal structure type conforms to the flow direction of the medium, and the installation posture conforms to the specific requirements of the valve structure type and operating requirements. In addition, correct posture contains a sense of uniformity, beauty and elegance. It is an organic combination of technology and artistry in modern art modeling.
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