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GB Series
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GB Series
GB Series
Standard No
Diameter Range
Pressure Rating
Conventional Materials
GB/T 9112-9123.4
DN10~DN2000
PN0.25 1.0 1.6 2.5 4.0 6.3 10.0 16.0 Mpa
GB1220
0Cr18Ni9/06Cr19Ni10
00Cr19Ni11/022Cr19Ni10
0Cr18Ni10Ti/06Cr18Ni11Ti
0Cr17Ni12Mo2/06Cr17Ni12M02
00Cr17Ni14Mo2/022Cr17Ni12M02
JBT 74-86.2
DN10~DN1600
PN0.25 0.6 1.0 1.6 2.5 4.0 6.3 10.0 16.0 20.0 Mpa
HG 20592-20626
DN10~DN2000
PN0.25 0.6 1.0 1.6 2.0 2.5 4.0 5.0 6.3 10.0 11.0
15.0 16.0 25.0 26.0 42.0 Mpa
SH 3406
DN10~DN1500
PN1.0 2.0 5.0 6.8 10.0 15.0 25.0 42.0 Mpa
GBT 17241.1-1724107
DN10~DN4000
PN0.25 0.6 1.0 1.6 2.0 2.5 4.0 5.0 Mpa
GB/T 15530.1-15530.8
DN10~DN1800
PN0.6 1.0 1.6 2.0 2.5 4.0 5.0 Mpa
JB/T 81-94 PN1.0MPa
mm
Nominal
Size
Outside Diameter
Of Pipe A1
Outside
Diameter
Of Flang
D
Sectional Dimensions Of Flang
Raised Face
Thickness
Of
Flange
C
Inside Diameter
Of Flange
B1
b
Weight
Kg
K
L
Drillings
d
f
International
A Pipe
China
B Pipe
Nuber
n
Thread
Th
A
B
10
17.2
14
90
60
14
4
M12
40
2
12
18
15
3
0.46
15
21.3
18
95
65
14
4
M12
45
2
12
22
19
3
0.51
20
26.9
25
105
75
14
4
M12
55
2
14
27.5
26
3
0.75
25
33.7
32
115
85
14
4
M12
65
2
14
34.5
33
4
0.89
32
42.4
38
140/135
100
18
4
M16
78
2
16
43.5
39
4
1.4
40
48.3
45
150/145
110
18
4
M16
85
3
18
49.5
46
4
1.71
50
60.3
57
165/160
125
18
4
M16
100
3
18
61.5
59
4
2.09
65
76.1
76
185/180
145
18
4
M16
120
3
20
77.5
78
5
2.84
80
88.9
89
200/195
160
18
8/4
M16
135
3
20
90.5
91
5
3.24注意
100
114.3
108
220/215
180
18
8
M16
155
3
22
116
110
5
4.01
125
139.7
133
250/245
210
18
8
M16
185
3
24
141.5
135
5
5.4
150
168.3
159
285/280
240
23
8
M20
210
3
24
170.5
161
5
6.67
175
194
310
270
23
8
M20
240
3
24
196
6
7.44
200
219.1
219
340/335
295
23
8
M20
265
3
24
2215
222
7
8.24
225
245
365
325
23
8
M20
295
3
24
248
8
9.3
250
273
273
395/390
350
23
12
M20
320
3
26
276.5
276
9
10.7
300
323.9
325
445/440
400
23
12
M20
0.368
4
28
327.5
328
9
12.9
350
355.6
377
505/500
460
23
16
M20
428
4
28
359.5
380
10
15.9
400
406.4
426
565
515
26/25
16
M24/M22
482
4
30
411
430
10
21.8
450
457
480
615
565
26/25
20
M24/M22
532
4
30
462
484
10
24.4
500
508
530
670
620
26/25
20
M24/M22
585
4
32
513.5
534
10
27.7
600
610
630
780
725
30
20
M27
685
5
36
616.5
634
10
39.4
700
711
720
895
840
30
24
M27
800
5
36
715
724
10
53
800
813
820
1015/1010
950
34
24
M30
905
5
38
817
824
10
67
900
914
920
1115/1110
1050
34
28
M30
1005
5
38
918
924
10
76Reference
1000
1016
1020
1230/1220
1160
36/34
28
M33/M30
1115
5
38
1020
1024
10
90Reference
1100
1120
1340
1270
36
28
M33
1222
5
40
1124
10
125Reference
1200
1219
1220
1455/1450
1380
39/41
32
M36
1325
5
44
1233
1224
12
143Reference
1300
1320
1575
1490
41
32
M36
1420
5
46
1324
12
180Reference
1400
1422
1420
1675
1590
42/48
36
M39/M42
1525
5
48
1426
1424
14
190Reference
1500
1520
1785
1700
48
36
M42
1640
5
50
1524
14
225Reference
1600
1626
1620
1915
1820
48/54
40
M45/M48
1750
5
52
1630
1624
16
275Reference
1750
1820
2065
1970
54
44
M48
1900
5
54
16
310Reference
1800
1829
2020
2115
2020
48/54
44
M45/M48
1950
5
56
1833
17
340Reference
2000
2032
2325
2230
48/54
48
M45/M48
2100
5
60
2036
18
420Reference
2200
2550
2440
56
52
M
2370
6
8
20
660Reference
JB/T 81-94 PN1.6MPa
mm
Nominal
Size
Outside Dimeter
Of Pipe A1
Outside
Diameter
Of Flang
D
Sectional Dimensions Of Flang
Raised Face
Thickness
Of
Flange
C
Inside Diameter
Of Flange
B1
b
Weight
Kg
K
L
Drillings
d
f
International
A Pipe
China
B Pipe
Nuber
n
Thread
Th
B
10
17.2
14
90
60
14
4
M12
40
2
14
18
15
3
0.55
15
21.3
18
95
65
14
4
M12
45
2
14
22
19
3
0.71
20
26.9
25
105
75
14
4
M12
55
2
16
27.5
26
3
0.87
25
33.7
32
115
85
14
4
M12
65
2
18
34.5
33
4
1.18
32
42.4
38
140/135
100
18
4
M16
78
2
18
43.5
39
4
1.6
40
48.3
45
150/145
110
18
4
M16
85
3
20
49.5
46
4
2
50
60.3
57
165/160
125
18
4
M16
100
3
22
61.5
59
4
2.61
65
76.1
76
185/180
145
18
4
M16
120
3
24
77.5
78
5
3.45
80
88.9
89
200/195
160
18
8
M16
135
3
24
90.5
91
5
3.71
100
114.3
108
220/215
180
18
8
M16
155
3
24
116
110
5
4.8
125
139.7
133
250/245
210
18
8
M16
185
3
28
141.5
135
5
6.47
150
168.3
159
285/280
240
23
8
M20
210
3
28
170.5
161
5
7.92
175
194
310
270
23
8
M20
240
3
28
196
6
8.81
200
219.1
219
340/335
295
23
12
M20
265
3
30
2215
222
7
10.1
225
245
365
325
23
12
M20
295
3
30
248
8
11.2
250
273
273
405
355
26/25
12
M24/M22
320
3
32
276.5
276
9
15.7
300
323.9
325
460
410
26/25
12
M24/M22
375
4
32
327.5
328
9
18.1
350
355.6
377
520
470
26/25
16
M24/M22
436
4
34
359.5
380
10
23.3
400
406.4
426
580
525
30
16
M27
485
4
38
411
430
10
31
450
457
480
640
585
30
20
M27
515
4
42
462
484
10
40.2
500
508
530
715/705
650
34
20
M30
608
4
48
513.5
534
10
55.2
600
610
630
840
770
36/41
20
M33/M36
718
5
50
616.5
634
10
80.8
700
711
720
910
840
36/41
24
M33/M36
788
5
50
715
724
10
106.2
800
813
820
1025/1020
950
39/41
24
M36
898
5
52
817
824
10
130.5
900
914
920
1125/1120
1050
39/41
28
M36
998
5
44
918
924
10
91Reference
1000
1016
1020
1255
1170
42/48
28
M39/M42
1110
5
46
1020
1024
10
127Reference
1100
1120
1370
1280
42
28
M39
1222
5
50
1124
10
160Reference
1200
1219
1220
1485
1390
48/54
32
M45/M48
1325
5
52
1223
1224
12
186Reference
1300
1320
1585
1490
54
32
M48
1425
5
54
1324
12
215Reference
1400
1422
1420
1685
1590
48/54
36
M45/M48
1525
5
58
1426
1424
14
245Reference
1500
1520
1820
1710
54
36
M48
1640
5
60
1524
14
320Reference
1600
1626
1620
1930
1820
55/58
40
M52
1750
5
64
1630
1624
16
360Reference
1750
2080
1970
58
44
M52
1900
5
66
16
400Reference
1800
1829
1820
2130
2020
55/58
44
M52
1950
5
68
1833
1824
17
430Reference
2000
2032
2020
2345
2230
60
48
M56
2150
5
70
2036
2036
18
515Reference
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