Flange Dimension
JIS 20K
| Normal Diameter of Pipe | Dimension of | Bolt | |||
|---|---|---|---|---|---|
| A | C | D | H | No. | |
| mm | inch | ||||
| 10 | 3/8″ | 65 | 90 | 15 | 4 |
| 15 | 1/2″ | 70 | 95 | 15 | 4 |
| 20 | 3/4″ | 75 | 100 | 15 | 4 |
| 25 | 1″ | 90 | 125 | 19 | 4 |
| 32 | 1-1/4″ | 100 | 135 | 19 | 4 |
| 40 | 1-1/2″ | 105 | 140 | 19 | 4 |
| 50 | 2″ | 120 | 155 | 19 | 8 |
| 65 | 2-1/2″ | 140 | 175 | 19 | 8 |
| 80 | 3″ | 160 | 200 | 23 | 8 |
| 90 | 3-1/2″ | 170 | 210 | 23 | 8 |
| 100 | 4″ | 185 | 225 | 23 | 8 |
| 125 | 5″ | 225 | 270 | 25 | 12 |
| 150 | 6″ | 260 | 305 | 25 | 12 |
| 200 | 8″ | 305 | 350 | 25 | 12 |
| 250 | 10″ | 380 | 430 | 28 | 12 |
| 300 | 12″ | 430 | 480 | 27 | 16 |
| 350 | 14″ | 480 | 540 | 33 | 16 |
| 400 | 16″ | 540 | 605 | 33 | 16 |
| 450 | 18″ | 605 | 675 | 33 | 20 |
| 500 | 20″ | 660 | 730 | 33 | 20 |
| 550 | 22″ | 720 | 795 | 39 | 20 |
| 600 | 24″ | 770 | 845 | 39 | 24 |