Gasket dimensions for flat ring and full face applications
JIS – 20K
Nominal diameter |
IBC and full face gasket inner diameter |
IBC gasket outer diameter |
Full face gasket |
Outer diameter |
Bolt P.C.D. |
Diameter of bolt holes |
Number of bolt holes |
10 |
18 |
53 |
90 |
65 |
15 |
4 |
15 |
22 |
58 |
95 |
70 |
15 |
4 |
20 |
28 |
63 |
100 |
75 |
15 |
4 |
25 |
35 |
74 |
125 |
90 |
19 |
4 |
32 |
43 |
84 |
135 |
100 |
19 |
4 |
40 |
49 |
89 |
140 |
105 |
19 |
4 |
50 |
61 |
104 |
155 |
120 |
19 |
8 |
65 |
77 |
124 |
175 |
140 |
19 |
8 |
80 |
90 |
140 |
200 |
160 |
23 |
8 |
90 |
103 |
150 |
210 |
170 |
23 |
8 |
100 |
115 |
165 |
225 |
185 |
23 |
8 |
125 |
141 |
203 |
270 |
225 |
25 |
8 |
150 |
167 |
238 |
305 |
260 |
25 |
12 |
200 |
218 |
283 |
350 |
305 |
25 |
12 |
250 |
270 |
356 |
430 |
380 |
27 |
12 |
300 |
310 |
406 |
480 |
430 |
27 |
16 |
350 |
358 |
450 |
540 |
480 |
33 |
16 |
400 |
409 |
510 |
605 |
540 |
33 |
16 |
450 |
460 |
575 |
675 |
605 |
33 |
20 |
500 |
511 |
630 |
730 |
660 |
33 |
20 |
550 |
562 |
684 |
795 |
720 |
39 |
20 |
600 |
613 |
734 |
845 |
770 |
39 |
24 |