Flange Dimension

JIS 7.5K

Technical Data
Normal Diameter of Pipe Dimension of Bolt
A C D H No.
mm inch
15 1/2″
20 3/4″
25 1″
32 1-1/4″
40 1-1/2″
50 2″ 140 184 18 4
65 2-1/2″ 155 193 18 4
80 3″ 168 211 19 4
100 4″ 195 238 19 4
125 5″ 220 263 19 6
150 6″ 247 290 19 6
200 8″ 299 342 19 8
250 10″ 360 410 23 8
300 12″ 414 464 23 10
350 14″ 472 530 25 10
400 16″ 524 582 25 12
450 18″ 585 652 27 12
500 20″ 639 706 27 12
600 24″ 730 795 33 24