法蘭低溫球閥分為低溫浮動球和低溫固定球兩類,用于截斷或接通管路中的低溫介質,介質最低溫度不得低于-196度。
法蘭低溫球閥執行標準 Administer Standard
|
設計與制造
Design and Manufacture
|
結構長度
Face To Face
|
法蘭尺寸
Flange Dimension
|
壓力-溫度
Pressure Temperature Lating
|
試驗-檢驗
Inspection And Test
|
|
GB122237
|
GB12221
|
GB9113 JB79
|
GB9131
|
GB/T13927 JB/T9092
|
法蘭低溫球閥壓力試驗 Pressure Test
|
公稱壓力NominalPressure
|
1.6
|
2.5
|
4.0
|
|
強度試驗
Shell Test
|
2.4
|
3.8
|
6.0
|
|
水密封試驗
Water Seal Test
|
1.8
|
2.8
|
4.4
|
|
氣密封試驗
Air Seal Test
|
0.4-0.7
|
法蘭低溫球閥主要零件材料及性能 Main Part Materials and Property
|
閥體
Body
|
WCB
|
ZG1Cr18Ni9Ti
|
CF8
|
CF3
|
ZG1Cr18Ni12Mo2Ti
|
CF8M
|
CF3M
|
|
球體 閥桿
Ball Stem
|
2Cr13
|
1Cr18Ni9Ti
|
304
|
304L
|
1Cr18Ni12Mo2Ti
|
316
|
316L
|
|
閥 座
Seat
|
聚四氟乙烯PTFE 加坡纖增強聚四氟乙烯PTFE+Glass 對位聚笨PPL
|
|
墊片
Shim
|
聚四氟乙烯PTFE 不銹鋼/柔性石墨Stainless Steel/flexible Graphite 齒形墊片Tooth Profile Gasket
|
|
閥桿座
Stem Seat
|
聚四氟乙烯PTFE 不銹鋼/柔性石墨 Stainless Steel/Flexible Graphite
|
|
填料
Packing
|
聚四氟乙烯PTFE 增強柔性石墨 Enhanced Flexible Graphite
|
|
填料壓蓋
Gland
|
WCB
|
1Cr18Ni9Ti
|
304
|
304L
|
1Cr18Ni12Mo2Ti
|
316
|
316L
|
|
溫度
Temperature
|
-40～150
|
|
介質
Medium
|
水 蒸汽 油品
Water steam
Oil goods
|
硝酸類 Nitric Acid
|
強氧化介質
strongey oxidable medium
|
醋酸類 Acetic Acid
|
尿素類 Urea
|
法蘭低溫球閥規格 主要尺寸 Size Main Dimensions
|
1.6MPa
|
DN
|
L
|
D
|
D1
|
D2
|
b
|
n-φd
|
H
|
D0
|
|
凸面法蘭
RF
DQ41
16C
16P
16R
|
15
|
130
|
95
|
65
|
45
|
14
|
4-14
|
78
|
140
|
|
20
|
140
|
105
|
75
|
55
|
14
|
4-14
|
84
|
160
|
|
25
|
150
|
115
|
85
|
65
|
14
|
4-14
|
95
|
180
|
|
32
|
165
|
135
|
100
|
78
|
16
|
4-18
|
150
|
250
|
|
40
|
180
|
145
|
110
|
85
|
16
|
4-18
|
150
|
300
|
|
50
|
200
|
160
|
125
|
100
|
18
|
4-18
|
170
|
350
|
|
65
|
220
|
180
|
145
|
120
|
20
|
4-18
|
195
|
350
|
|
80
|
250
|
195
|
160
|
135
|
20
|
8-18
|
215
|
400
|
|
100
|
280
|
215
|
180
|
155
|
20
|
8-18
|
250
|
500
|
|
125
|
320
|
245
|
210
|
185
|
22
|
8-18
|
265
|
600
|
|
150
|
360
|
280
|
240
|
210
|
24
|
8-23
|
270
|
800
|
|
200
|
400
|
335
|
295
|
265
|
26
|
12-23
|
330
|
1200
|
|
2.5MPa
|
15
|
130
|
95
|
65
|
45
|
16
|
4-14
|
103
|
140
|
|
凸面法蘭
RF
DQ41
25
25P
25R
|
20
|
140
|
105
|
75
|
55
|
16
|
4-14
|
112
|
160
|
|
25
|
150
|
115
|
85
|
65
|
16
|
4-14
|
123
|
180
|
|
32
|
165
|
135
|
100
|
78
|
18
|
4-18
|
150
|
250
|
|
40
|
180
|
145
|
110
|
85
|
18
|
4-18
|
156
|
300
|
|
50
|
200
|
160
|
125
|
100
|
20
|
8-18
|
172
|
350
|
|
65
|
220
|
180
|
145
|
120
|
22
|
8-18
|
197
|
350
|
|
80
|
250
|
195
|
160
|
135
|
22
|
8-23
|
222
|
400
|
|
100
|
280
|
230
|
190
|
160
|
24
|
8-23
|
253
|
500
|
|
125
|
320
|
270
|
220
|
188
|
28
|
8-25
|
275
|
600
|
|
150
|
360
|
300
|
250
|
218
|
30
|
8-25
|
286
|
800
|
|
200
|
400
|
360
|
310
|
278
|
34
|
12-25
|
340
|
1200
|
法蘭低溫球閥規格 主要尺寸 Size Main Dimensions
|
4.0MPa
|
DN
|
L
|
D
|
D1
|
D2
|
D6
|
b
|
n-φd
|
H
|
D0
|
|
凹凸法蘭
MFM
DQ41
40
40P
40R
|
15
|
130
|
95
|
65
|
45
|
40
|
16
|
4-14
|
103
|
140
|
|
20
|
140
|
105
|
75
|
55
|
51
|
16
|
4-14
|
112
|
160
|
|
25
|
150
|
115
|
85
|
65
|
58
|
16
|
4-14
|
123
|
160
|
|
32
|
180
|
135
|
100
|
78
|
66
|
18
|
4-18
|
150
|
250
|
|
40
|
200
|
145
|
110
|
85
|
76
|
18
|
4-18
|
156
|
250
|
|
50
|
220
|
160
|
125
|
100
|
88
|
20
|
4-18
|
172
|
350
|
|
65
|
250
|
180
|
145
|
120
|
110
|
22
|
8-18
|
197
|
350
|
|
80
|
280
|
195
|
160
|
135
|
121
|
22
|
8-18
|
222
|
450
|
|
100
|
320
|
230
|
190
|
160
|
150
|
24
|
8-23
|
253
|
450
|
|
125
|
400
|
270
|
220
|
188
|
176
|
28
|
8-25
|
275
|
600
|
|
150
|
400
|
300
|
250
|
218
|
204
|
30
|
8-25
|
286
|
800
|
|
200
|
550
|
375
|
320
|
282
|
260
|
38
|
12-30
|
340
|
1200
|
|
6.4MPa
|
15
|
165
|
105
|
75
|
55
|
40
|
18
|
4-14
|
105
|
140
|
|
凹凸法蘭
MFM
DQ41
64
64P
64R
|
20
|
190
|
125
|
90
|
68
|
51
|
20
|
4-18
|
125
|
160
|
|
25
|
216
|
135
|
100
|
78
|
58
|
22
|
4-18
|
135
|
250
|
|
32
|
229
|
150
|
110
|
82
|
66
|
24
|
4-23
|
150
|
350
|
|
40
|
241
|
165
|
125
|
95
|
76
|
24
|
4-23
|
165
|
350
|
|
50
|
292
|
175
|
135
|
105
|
88
|
26
|
4-23
|
175
|
450
|
|
65
|
330
|
200
|
160
|
130
|
110
|
28
|
8-23
|
200
|
450
|
|
80
|
356
|
210
|
170
|
140
|
121
|
30
|
8-23
|
210
|
600
|
|
100
|
432
|
250
|
200
|
168
|
150
|
32
|
8-25
|
250
|
700
|
|
125
|
508
|
295
|
240
|
202
|
176
|
36
|
8-30
|
295
|
1100
|
|
150
|
559
|
340
|
280
|
240
|
204
|
38
|
8-34
|
340
|
1500
|