JIS G3214
SUS F304
SUS F304L
SUS F316
SUS F316L
SUS F310
SUS F321
JIS B2220 SO
DN450~DN1000
5K
JIS B2220 PL
DN10~DN225
10K
JID B2220 SO
DN250~DN1000
10K
JIS B2220 SO
DN10~DN1200
16K 20K 30K
JIS B2220 WN
DN15~DN400
30K
JPI 7S-15
1/2~24"
CLASS 150 300 600 900 1500 2500
KS B1503 JIS B2220 5K Unit:mm
Nominal
Bore of
Flange
Outside
Dia. of
Steel
pipe
Inside
Dia. of
Flange
do
Outside
Dia. of
Flange
D
Sectional Dimensions of Flange
Bolt Hole
Nominal
Bolt
Size
Weld
Length
(Reference)
Approx
Weight
(Kg)
t
T
Dia. of Hub
Radius
r
Raised
Face
f
Dia. of
Raised
Face
g
Dia. of
Bolt
Circle
c
Number
of
Bolt
Holes
Hole
Dia.
h
a
b
W1
W2
10
17.3
17.8
75
9
1
39
55
4
12
M10
5
2.5
0.27
15
21.7
22.2
80
9
1
44
60
4
12
M10
5
3
0.3
20
27.2
27.7
85
10
1
49
65
4
12
M10
5
3
0.37
25
34
34.5
95
10
1
59
75
4
12
M10
5
3
0.45
32
42.7
43.2
115
12
2
70
90
4
15
M12
6
3
0.78
40
48.6
49.1
120
12
2
75
95
4
15
M12
6
3
0.83
50
60.5
61.1
130
14
2
85
105
4
15
M12
6
3
1.07
65
76.3
77.1
155
14
2
110
130
4
15
M12
6
4
1.49
80
89.1
90
180
14
2
121
145
4
19
M16
6
4
1.99
(90)
101.6
102.6
190
14
2
131
155
4
19
M16
6
4
2.09
100
114.3
115.4
200
16
2
141
165
8
19
M16
7
4
2.39
125
139.8
141.2
235
16
2
176
200
8
19
M16
7
4
3.23
150
165.2
166.6
265
18
2
206
230
8
19
M16
7
5
4.41
(175)
190.7
192.1
300
18
2
232
260
8
23
M20
7.5
5
5.51
200
216.3
218
320
20
2
252
280
8
23
M20
8.5
6
6.33
(225)
241.8
243.7
345
20
2
277
305
12
23
M20
9
6
6.64
250
267.4
269.5
385
22
2
317
345
12
23
M20
10
6
9.45
300
318.5
321
430
22
3
360
390
12
23
M20
10
6
10.3
350
355.6
358.1
480
24
3
403
435
12
25
M22
12
7
14
400
406.4
409
540
24
3
463
495
16
25
M22
12
7
16.9
450
457.2
460
605
24
40
495
500
5
3
523
555
16
25
M22
12
7
24.8
500
508
511
655
24
40
546
552
5
3
573
605
20
25
M22
12
7
26.9
(550)
558.8
562
720
26
42
597
603
5
3
630
665
20
27
M24
12
7
34.1
600
609.6
613
770
26
44
648
654
5
3
680
715
20
27
M24
12
7
37.5
(650)
660.4
664
825
26
48
702
708
5
3
735
770
24
27
M24
12
7
42.8
700
711.2
715
875
26
48
751
758
5
3
785
820
24
27
M24
12
7
45.4
(750)
762
766
945
28
52
802
810
5
3
840
880
24
33
M30
12
7
57.4
800
812.8
817
995
28
52
854
862
5
3
890
930
24
33
M30
13
8
60.8
(850)
863.6
868
1045
28
54
904
912
5
3
940
980
24
33
M30
13
8
63.5
900
914.4
919
1095
30
56
956
964
5
3
990
1030
24
33
M30
13
8
75.3
1000
1016
1021
1195
32
60
105
1066
5
3
1090
1130
28
33
M30
14
9
88.5
*(1100)
1117.6
1123
1305
32
3
1200
1240
28
33
M30
*1200
1219.2
1225
1420
34
3
1305
1350
32
33
M30
*1350
1371.6
1575
34
3
1460
1505
32
33
M30
*1500
1524
1730
36
3
161
1660
36
33
M30
1.Flanges of parenthesized nominal diameter had better not be used.
2.The facing of flanges shall conform to KS B1519(JIS B2202-1984).
3.Nominal diameter over 1000 is manufacturer's standard(*).
KS B1503 JIS B2220 10K Unit:mm
Nominal
Bore of
Flange
Outside
Dia. of
Steel
pipe
Inside
Dia. of
Flange
do
Outside
Dia. of
Flange
D
Sectional Dimensions of Flange
Bolt Hole
Nominal
Bolt
Size
Weld
Length
(Reference)
Approx
Weight
(Kg)
t
T
Dia. of Hub
Radius
r
Raised
Face
f
Dia. of
Raised
Face
g
Dia. of
Bolt
Circle
c
Number
of
Bolt
Holes
Hole
Dia.
h
a
b
W1
W2
10
17.3
17.8
90
12
1
46
65
4
15
M12
5
2.5
0.52
15
21.7
22.2
95
12
1
51
70
4
15
M12
5
3
0.57
20
27.2
27.7
100
14
1
56
75
4
15
M12
5
3
0.73
25
34
34.5
125
14
1
67
90
4
19
M16
5
3
1.13
32
42.7
43.2
135
16
2
76
100
4
19
M16
6
3
1.48
40
48.6
49.1
140
16
2
81
105
4
19
M16
6
3
1.56
50
60.5
61.1
155
16
2
96
120
4
19
M16
6
3
1.88
65
76.3
77.1
175
18
2
116
140
4
19
M16
6.5
4
2.6
80
89.1
90
185
18
2
126
150
8
19
M16
6.5
4
2.61
(90)
101.6
102.6
195
18
2
136
160
8
19
M16
6.5
4
2.76
100
114.3
115.4
210
18
2
151
175
8
19
M16
7
4
3.14
125
139.8
141.2
250
20
2
182
210
8
23
M20
7.5
4
4.77
150
165.2
166.6
280
22
2
212
240
8
23
M20
8
5
6.34
(175)
190.7
192.1
305
22
2
237
265
12
23
M20
9
5
6.82
200
216.3
218
330
22
2
262
290
12
23
M20
9
6
7.53
(225)
241.8
243.7
350
22
2
282
310
12
23
M20
9
6
7.74
250
267.4
269.5
400
24
36
288
292
6
2
324
355
12
25
M22
10
6
12.7
300
318.5
321
445
24
38
340
346
6
3
368
400
16
25
M22
10
6
13.8
350
355.6
358.1
490
26
42
380
386
6
3
413
445
16
25
M22
12
7
18.2
400
406.4
409
560
28
44
436
442
6
3
475
510
16
27
M24
12
7
25.2
450
457.2
460
620
30
48
496
502
6
3
530
565
20
27
M24
14
8
33
500
508
511
675
30
48
548
554
6
3
585
620
20
27
M24
14
8
37.6
(550)
558.8
562
745
32
52
604
610
6
3
640
680
20
33
M30
15
9
49.7
600
609.6
613
795
32
52
656
662
6
3
690
730
24
33
M30
16
10
52.6
(650)
660.4
664
845
34
56
706
712
6
3
740
780
24
33
M30
16
10
60.6
700
711.2
715
905
34
58
762
770
6
3
800
840
24
33
M30
17
10
70.6
(750)
762
766
970
36
62
816
824
6
3
855
900
24
33
M30
18
11
85.8
800
812.8
817
1020
36
64
868
876
6
3
905
950
28
33
M30
19
12
91.2
(850)
863.6
868
1070
36
66
920
928
6
3
955
1000
28
33
M30
19
12
98.6
900
914.4
919
1120
38
70
971
979
6
3
1005
1050
28
33
M30
22
14
109
1000
1016
1021
1235
40
74
1073
1081
6
3
1110
1160
28
39
M36
22
14
133
*(1100)
1117.6
1123
1345
42
76
3
1220
1270
28
39
M36
*1200
1219.2
1225
1465
44
78
3
1325
1380
32
39
M36
*1350
1371.6
1630
48
82
3
1480
1540
36
45
M42
*1500
1524
1795
50
90
3
1635
1700
40
45
M42
1.Flanges of parenthesized nominal diameter had better not be used.
2.The facing of flanges shall conform to KS B1519(JIS B2202-1984).
3.Nominal diameter over 1000 is manufacturer's standard(*).