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JIS Standard

 
JIS B2220 - 5K Flanges
 
Nominal
Dia. of
Flange
Outside
Dia. of
Flange
D
Sectional Dimensions of flange           Welding
Dia. of
Bolt
Circle
C
Dia. of
Raised
Face
g
  Outside
Dia. of
Appil-
Cable
pipe
t T Dia. of Hub Radi
-us
r
Raised
Face
f
Hole
Dia.
H
Number
of
Bolt
Holes
Nominal
Bolt
Size
a b W1 W2
10     75      55     39      17.3   9   -    -    -    -     1   12      4    M10     5 2.50
15 80 60 44 21.7 9 - - - - 1 12 4 M10 5 3.00
20 85 65 49 27.2 10 - - - - 1 12 4 M10 5 3.00
25 95 75 59 34 10 - - - - 1 12 4 M10 5 3.00
32 115 90 70 42.7 12 - - - - 2 15 4 M12 6 3.00
40 120 95 75 48.6 12 - - - - 2 15 4 M12 6 3.00
50 130 105 85 60.5 14 - - - - 2 15 4 M12 6 3.00
65 155 130 110 76.3 14 - - - - 2 15 4 M12 6 4.00
80 180 145 121 89.1 14 - - - - 2 19 4 M16 6 4.00
90 190 155 131 101.6 14 - - - - 2 19 4 M16 6 4.00
100 200 165 141 114.3 16 - - - - 2 19 8 M16 7 4.00
125 235 200 176 139.8 16 - - - - 2 19 8 M16 7 4.00
150 265 230 206 165.2 18 - - - - 2 19 8 M16 7 5.00
175 300 260 232 190.7 18 - - - - 2 23 8 M20 7.5 5.00
200 320 280 252 216.3 20 - - - - 2 23 8 M20 8.5 6.00
225 345 305 277 241.8 20 - - - - 2 23 12 M20 9 6.00
250 385 345 317 267.4 22 - - - - 2 23 12 M20 10 6.00
300 430 390 360 318.5 22 - - - - 3 23 12 M20 10 6.00
350 480 435 403 355.6 24 - - - - 3 25 12 M22 12 7.00
400 540 495 463 406.4 24 - - - - 3 25 16 M22 12 7.00
450 605 555 523 457.2 24 40 495 500 5 3 25 16 M22 12 7.00
500 655 605 573 508 24 40 546 552 5 3 25 20 M22 12 7.00
550 720 665 630 558.8 26 42 597 603 5 3 27 20 M24 12 7.00
600 770 715 680 609.6 26 44 648 654 5 3 27 20 M24 12 7.00
650 825 770 735 660.4 26 48 702 708 5 3 27 24 M24 12 7.00
700 875 820 785 711.2 26 48 751 758 5 3 27 24 M24 12 7.00
750 945 880 840 762 28 52 802 810 5 3 33 24 M30 12 7.00
800 995 930 890 812.8 28 52 854 862 5 3 33 24 M30 13 8.00
850 1045 980 940 863.6 28 54 904 912 5 3 33 24 M30 13 8.00
900 1095 1030 990 914.4 30 56 956 964 5 3 33 24 M30 13 8.00
1000 1195 1130 1090 1016 32 60 1058 1066 5 3 33 28 M30 14 9.00
*(1100) 1305 1240 1200 1117.6 32 - - - - 3 33 28 M30    
*1200 1420 1350 1305 1219.2 34 - - - - 3 33 32 M30    
*1350 1575 1505 1460 1371.6 34 - - - - 3 33 32 M30    
*1500 1730 1660 1615 1524 36 - - - - 3 33 36 M30    
NOTE:
1. Flanges of parenthesized nominal diameter ( ) , not to be used unless otherwise noted by purchaser.
2. The facing of flanges shall conform to KS B1519 (JIS B2202)
3. Nominal diameter over 1000 is manufacturer s standard (*)
4.All dimensions are in mm







 

 




 
JIS B2220 - 10K Flanges
 
Nominal
Dia. of
Flange
Outside
Dia. of
Flange
D
Sectional Dimensions of flange     Welding
Dia. Of Bolt
Circle C
Dia. of
Raised
Face
g
Outside
Dia. of
Appil-
Cable
pipe
t T Dia. of Hub Radi
-us
r
Raised
Face
f
Hole
Dia.
H
Number
of
Bolt
Holes
Nominal
Bolt
Size
a b W1 W2
10 90 65 46 17.3 12 - - - - 1 15 4 M12 5 2.5
15 95 70 51 21.7 12 - - - - 1 15 4 M12 5 3
20 100 75 56 27.2 14 - - - - 1 15 4 M12 5 3
25 125 90 67 34 14 - - - - 1 19 4 M16 5 3
32 135 100 76 42.7 16 - - - - 2 19 4 M16 6 3
40 140 105 81 48.6 16 - - - - 2 19 4 M16 6 3
50 155 120 96 60.5 16 - - - - 2 19 4 M16 6 3
65 175 140 116 76.3 18 - - - - 2 19 4 M16 6.5 4
80 185 150 126 89.1 18 - - - - 2 19 8 M16 6.5 4
90 195 160 136 101.6 18 - - - - 2 19 8 M16 6.5 4
100 210 175 151 114.3 18 - - - - 2 19 8 M16 7 4
125 250 210 182 139.8 20 - - - - 2 23 8 M20 7.5 4
150 280 240 212 165.2 22 - - - - 2 23 8 M20 8 5
175 305 265 237 190.7 22 - - - - 2 23 12 M20 9 5
200 330 290 262 216.3 22 - - - - 2 23 12 M20 9 6
225 350 310 282 241.8 22 - - - - 2 23 12 M20 9 6
250 400 355 324 267.4 24 36 288 292 6 2 25 12 M22 10 6
300 445 400 368 318.5 24 38 340 346 6 3 25 16 M22 10 6
350 490 445 413 355.6 26 42 380 386 6 3 25 16 M22 12 7
400 560 510 475 406.4 28 44 436 442 6 3 27 16 M24 12 7
450 620 565 530 457.2 30 48 496 502 6 3 27 20 M24 14 8
500 675 620 585 508 30 48 548 554 6 3 27 20 M24 14 8
550 745 680 640 558.8 32 52 604 610 6 3 33 20 M30 15 9
600 795 730 690 609.6 32 52 656 662 6 3 33 24 M30 16 10
650 845 780 740 660.4 34 56 706 712 6 3 33 24 M30 16 10
700 905 840 800 711.2 34 58 762 770 6 3 33 24 M30 17 10
750 970 900 855 762 36 62 816 824 6 3 33 24 M30 18 11
800 1020 950 905 812.8 36 64 868 876 6 3 33 28 M30 19 12
850 1070 1000 955 863.6 36 66 920 928 6 3 33 28 M30 19 12
900 1120 1050 1005 914.4 38 70 971 979 6 3 33 28 M30 22 14
1000 1235 1160 1110 1016 40 74 1073 1081 6 3 39 28 M36 22 14
*(1100) 1345 1270 1220 1117.6 42 - - - - 3 39 28 M36    
*1200 1465 1380 1325 1219.2 44 - - - - 3 39 32 M36    
*1350 1630 1540 1480 1371.6 48 - - - - 3 45 36 M42    
*1500 1795 1700 1635 1524 50 - - - - 3 45 40 M42    
NOTE:
1. Flanges of parenthesized nominal diameter ( ) , not to be used unless otherwise noted by purchaser
2. The facing of flanges shall conform to KS B1519 (JIS B2202)
3. Nominal diameter over 1000 is manufacturer s standard (*)
4.All dimensions are in mm

 

 

 

 

 

 

 
JIS B2220 - 16K Flanges
 
Nominal
Dia. of
Flange
Outside
Dia. of
Flange
D
Sectional Dimensions of flange    
Dia. Of Bolt
Circle C
Dia. of
Raised
Face
g
Outside
Dia. of
Appil-
Cable
pipe
t T Dia. of Hub Radi
-us
r
Raised
Face
f
Hole
Dia.
H
Number
of
Bolt
Holes
Nominal
Bolt
Size
a b
10 90 65 46 17.3 12 16 26 28 4 1 15 4 M12
15 95 70 51 21.7 12 16 30 32 4 1 15 4 M12
20 100 75 56 27..2 14 20 38 42 4 1 15 4 M12
25 125 90 67 34 14 20 46 50 4 1 19 4 M16
32 135 100 76 42.7 16 22 56 60 5 2 19 4 M16
40 140 105 81 48.6 16 24 62 66 5 2 19 4 M16
50 155 120 96 60.5 16 24 76 80 5 2 19 8 M16
65 175 140 116 76.3 18 26 94 98 5 2 19 8 M16
80 200 160 132 89.1 20 28 108 112 6 2 23 8 M20
90 210 170 145 101.6 20 30 120 124 6 2 23 8 M20
100 225 185 160 114.3 22 34 134 138 6 2 23 8 M20
125 270 225 195 139.8 22 34 164 170 6 2 25 8 M22
150 305 260 230 165.2 24 38 196 202 6 2 25 12 M22
200 350 305 275 216.3 26 40 244 252 6 2 25 12 M22
250 430 380 345 267.4 28 44 304 312 6 2 27 12 M24
300 480 430 395 318.5 30 48 354 364 8 3 27 16 M24
350 540 480 440 355.6 34 52 398 408 8 3 33 16 M30X3
400 605 540 495 406.4 38 60 446 456 10 3 33 16 M30X3
450 675 605 560 457.2 40 64 504 514 10 3 33 20 M30X3
500 730 660 615 508 42 68 558 568 10 3 33 20 M30X3
550 795 720 670 558.8 44 70 612 622 10 3 39 20 M36X3
600 845 770 720 609.6 46 74 666 676 10 3 39 24 M36X3
650 895 820 770 660.4 48 77 704 726 10 5 39 24 M36X3
700 960 875 820 711.2 50 80 754 776 10 5 42 24 M39X3
750 1020 935 880 762 52 83 806 832 10 5 42 24 M39X3
800 1085 990 930 812.8 54 86 865 885 10 5 48 24 M45X3
850 1135 1040 980 863.6 56 89 916 936 10 5 48 24 M45X3
900 1185 1090 1030 914.4 58 93 968 986 10 5 48 28 M45X3
1000 1320 1210 1140 1016 62 99 1070 1098 12 5 56 28 M52X3
1100 1420 1310 1240 1117.6 66 105 1180 1200 12 5 56 32 M52X3
1200 1530 1420 1350 1219.2 70 112 1282 1302 12 5 56 32 M52X3
NOTE:
1. Flanges of parenthesized nominal diameter ( ) , not to be used unless otherwise noted by purchaser
2. The facing of flanges shall conform to KS B1519 (JIS B2202)
3. The dimension of flange of 650A and larger in nominal sizes excluding 850A, are in accordance with the
nominal pressure 25 BAR specified in ISO 2084.
4.All dimension are in mm
 
JIS B2220 - 20K Flanges
 
Nominal
Dia. of
Flange
Outside
Dia. of
Flange
D
Sectional Dimensions of flange     Reference
Dia. Of Bolt
Circle C
Dia. of
Raised
Face
g
Outside
Dia. of
Appil-
Cable
pipe
t T Dia. of Hub Radi
-us
r
Raised
Face
f
d Number
of
Bolt
Holes
Nominal
Bolt
Size
a b S1 m S2 n l
10 90 65 46 17.3 14 20 30 32 4 1 - 4 M12 27 4 27 4 -
15 95 70 51 21.7 14 20 34 36 4 1 - 4 M12 31 4 31 4 -
20 100 75 56 27.2 16 22 40 42 4 1 - 4 M12 37 4 37 4 -
25 125 90 67 34 16 24 48 50 4 1 - 4 M16 44 4 44 4.5 -
32 135 100 76 42.7 18 26 56 60 5 2 - 4 M16 52 4 53 5 -
40 140 105 81 48.6 18 26 62 66 5 2 - 4 M16 58 4 59 5.5 -
50 155 120 96 60.5 18 26 76 80 5 2 65.9 8 M16 70 4 72 5.5 -
65 175 140 116 76.3 20 30 100 104 5 2 78.1 8 M16 94 6 - - 6
80 200 160 132 89.1 22 34 113 117 6 2 90.2 8 M20 107 6 - - 6
90 210 170 145 101.6 24 36 126 130 6 2 102.3 8 M20 120 6 - - 6
100 225 185 160 114.3 24 36 138 142 6 2 126.6 8 M20 132 6 - - 6
125 270 225 195 139.8 26 40 166 172 6 2 151 8 M22 160 7 - - 6
150 305 260 230 165.2 28 42 196 202 6 2 199.9 12 M22 186 8 - - 6
200 350 305 275 216.3 30 46 244 252 6 2 248.8 12 M22 237 9 - - 6
250 430 380 345 267.4 34 52 304 312 6 2 297.9 12 M24 290 10 - - 6
300 480 430 395 318.5 36 56 354 364 8 3 333.4 16 M24 345 11 - - 6
350 540 480 440 355.6 40 62 398 408 8 3 381 16 M30X3 384 12 - - 6
400 605 540 495 406.4 46 70 446 456 10 3 431.8 16 M30X3 437 13 - - 7
450 675 605 560 457.2 48 78 504 514 10 3 482.6 20 M30X3 490 15 - - 7
500 730 660 615 508 50 84 558 568 10 3 533.4 20 M30X3 544 16 - - 7
550 795 720 670 558.8 52 90 612 622 10 3 584.2 20 M36X3 595 16 - - 7
600 845 770 720 609.6 54 96 666 676 10 3   24 M36X3 646 18 - - 7
*650 945 850 790 660.4 60         5   24 M45X3          
*700 995 900 840 711.2 64         5   24 M45X3          
*750 1080 970 900 762 68         5   24 M52X3          
*800 1140 1030 960 812.8 72         5   24 M52X3          
*850 1200 1090 1020 863.6 74         5   24 M52X3          
*900 1250 1140 1070 914.4 76         5   28 M52X3          
NOTE:
1. Flanges of parenthesized nominal diameter ( ), not to be used unless otherwise noted by purchaser.
2. “d” is an example of pipe thickness for schedule 40 for nominal diameter 400 and under, and for schedule 12.7 mm for 450 through 600 of KS B3562
and KS D3507 (JIS G3454, JIS G3456)
3.All dimensions are in mm
 
JIS B2220 - 30K Slip on Flanges
 
Nominal
Dia. of
Flange
Outside
Dia. of
Flange
D
Sectional Dimensions of flange     Reference
Dia. Of Bolt
Circle  C
Dia. of
Raised
Face
g
Outside
Dia. of
Steel
pipe
t T Dia. of Hub Radi
-us
r
Raised
Face
f
d Number
of
Bolt
Holes
Nominal
Bolt
Size
a b S1 m S2 n l
10 110 75 52 17.3 16 24 30 34 4 1 - 4 M16 - - - - -
15 115 80 55 21.7 18 26 36 40 5 1 - 4 M16 31 4 40 5 -
20 120 85 60 27.2 18 28 42 46 5 1 - 4 M16 37 5 44 5 -
25 130 95 70 34 20 30 50 54 5 1 - 4 M16 55 6 52 5 -
32 140 105 80 42.7 22 32 60 64 6 2 - 4 M16 52 6 60 5 -
40 160 120 90 48.6 22 34 66 70 6 2 - 4 M20 58 6 66 5 -
50 165 130 105 60.5 22 36 82 86 6 2 - 8 M16 70 6.5 78 5 -
65 200 160 130 76.3 26 40 102 106 8 2 65.9 8 M20 96 9.5 94 5 6
80 210 170 140 89.1 28 44 115 21 8 2 78.1 8 M20 109 9.5 - - 6
-90 230 185 150 101.6 30 46 128 134 8 2 90.2 8 M22 122 9.5 - - 6
100 240 195 160 114.3 32 48 141 147 8 2 102.3 8 M22 135 9.5 - - 6
125 275 230 195 139.8 36 54 166 172 8 2 126.6 8 M22 160 9.5 - - 6
150 325 275 235 165.2 38 58 196 204 8 2 151 12 M24 186 9.5 - - 6
200 370 320 280 216.3 42 64 248 256 8 2 199.9 12 M24 237 9.5 - - 6
250 450 390 345 267.4 48 72 306 314 10 2 248.8 12 M30 290 10 - - 6
300 515 450 405 318.5 52 78 360 370 10 3 297.9 16 M30 345 12 - - 6
350 560 495 450 355.6 54 84 402 412 12 3 333.4 16 M30 383 13 - - 6
400 630 560 510 406.4 60 92 456 468 15 3 381 16 M36 435 14 - - 7
All dimensions are in mm
 
JIS B2220 - 30K Weld Neck Flanges
 
Nominal
Dia. of
Flange
Outside
Dia. of
Flange
D
Sectional Dimensions of flange
Dia. Of Bolt
Circle  C
Dia. of
Raised
Face
g
Outside
Dia. of
Steel
pipe
T b     t d Radius r s f      
a R Number
of Bolt
Holes
Dia. of
Hole
h
Nominal
Bolt
Size
15 115 80 55 21.7 45 40 22 20 18 15.8 6 3.1 1 4 19 M16
20 120 85 60 27.2 45 44 27.5 20 18 21.1 6 3.2 1 4 19 M16
25 130 95 70 34 48 52 34.4 20 20 26.8 6 3.8 1 4 19 M16
32 140 105 80 42.7 52 62 43.1 30 22 35.1 6 4 2 4 19 M16
40 160 120 90 48.6 54 70 49.1 30 22 40.7 6 4.2 2 4 23 M20
50 165 130 105 60.5 57 84 61 30 22 52.2 8 4.4 2 8 19 M16
65 200 160 130 76.3 69 105 76.9 30 26 65.3 8 5.8 2 8 23 M20
80 210 170 140 89.1 73 118 89.7 30 28 76.4 8 6.1 2 8 23 M20
90 230 185 150 101.6 74 130 102.3 30 30 89.5 8 6.4 2 8 25 M22
100 240 195 160 114.3 76 142 115.1 30 32 101.5 8 6.8 2 8 25 M22
125 275 230 195 139.8 86 172 140.7 50 36 125.7 10 7.5 2 8 25 M22
150 325 275 235 165.2 95 202 166.2 50 38 150 10 8.1 2 12 27 M24
200 370 320 280 216.3 102 254 217.5 50 42 198.7 10 9.4 2 12 27 M24
250 450 390 345 267.4 118 312 268.7 50 48 247.5 12 10.6 2 12 33 M30 3
300 515 450 405 318.5 127 366 320 50 52 296.4 15 11.8 3 16 33 M30 3
350 560 495 450 355.6 134 406 357.2 80 54 331.8 15 12.7 3 16 33 M30 3
400 630 560 510 406.4 149 462 408.3 80 60 379.1 20 14.6 3 16 39 M36 3
NOTE:
1. Flanges of parenthesized nominal diameter ( ), not to be used unless otherwise noted by purchaser.
2. "d” is an example of pipe thickness for schedule 40 for nominal diameter 400 and under, and for schedule 12.7 mm for 450 through 600 of KS B3562
and KS D3507 (JIS G3454, JIS G3456)
All dimensions are in mm
 
* There will may be typical error
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