WHOLE STEEL PIPE FLANGE JB/T79.1-1994

| PN1.6MPa R F |
DN |
D |
K |
L |
n-Th |
d |
f |
c |
| 15 |
95 |
65 |
14 |
4-M12 |
45 |
2 |
14 |
| 20 |
105 |
75 |
14 |
4-M12 |
55 |
2 |
14 |
| 25 |
115 |
85 |
14 |
4-M12 |
65 |
2 |
14 |
| 32 |
135 |
100 |
18 |
4-M16 |
78 |
2 |
16 |
| 40 |
145 |
110 |
18 |
4-M16 |
85 |
3 |
16 |
| 50 |
160 |
125 |
18 |
4-M16 |
100 |
3 |
16 |
| 65 |
180 |
145 |
18 |
4-M16 |
120 |
3 |
18 |
| 80 |
195 |
160 |
18 |
8-M16 |
135 |
3 |
20 |
| 100 |
215 |
180 |
18 |
8-M16 |
155 |
3 |
20 |
| 125 |
245 |
210 |
18 |
8-M16 |
185 |
3 |
22 |
| 150 |
280 |
240 |
23 |
8-M20 |
210 |
3 |
24 |
| 200 |
335 |
295 |
23 |
12-M20 |
265 |
3 |
26 |
| 250 |
405 |
355 |
26 |
12-M24 |
320 |
3 |
30 |
| 300 |
460 |
410 |
26 |
16-M24 |
375 |
4 |
30 |
| 350 |
520 |
470 |
26 |
16-M24 |
435 |
4 |
34 |
| 400 |
580 |
525 |
30 |
16-M27 |
485 |
4 |
36 |
| 450 |
640 |
585 |
30 |
20-M27 |
545 |
4 |
40 |
| 500 |
705 |
650 |
34 |
20-M30 |
608 |
4 |
44 |
| 600 |
840 |
770 |
41 |
20-M36 |
718 |
5 |
48 |
| 700 |
910 |
840 |
41 |
24-M36 |
788 |
5 |
50 |
| 800 |
1020 |
950 |
41 |
24-M36 |
898 |
5 |
52 |
| PN2.5MPa R F |
DN |
D |
K |
L |
n-Th |
d |
f |
c |
| 15 |
95 |
65 |
14 |
4-M12 |
45 |
2 |
16 |
| 20 |
105 |
75 |
14 |
4-M12 |
55 |
2 |
16 |
| 25 |
115 |
85 |
14 |
4-M12 |
65 |
2 |
16 |
| 32 |
135 |
100 |
18 |
4-M16 |
78 |
2 |
18 |
| 40 |
145 |
110 |
18 |
4-M16 |
85 |
3 |
18 |
| 50 |
160 |
125 |
18 |
4-M16 |
100 |
3 |
10 |
| 65 |
180 |
145 |
18 |
8-M16 |
120 |
3 |
22 |
| 80 |
195 |
160 |
18 |
8-M16 |
135 |
3 |
22 |
| 100 |
230 |
190 |
23 |
8-M20 |
160 |
3 |
24 |
| 125 |
270 |
220 |
26 |
8-M24 |
188 |
3 |
28 |
| 150 |
300 |
250 |
26 |
8-M24 |
218 |
3 |
30 |
| 200 |
360 |
310 |
26 |
12-M24 |
278 |
3 |
34 |
| 250 |
425 |
370 |
30 |
12-M27 |
332 |
3 |
36 |
| 300 |
485 |
430 |
30 |
16-M27 |
390 |
4 |
40 |
| 350 |
550 |
490 |
34 |
16-M30 |
448 |
4 |
44 |
| 400 |
610 |
550 |
34 |
16-M30 |
505 |
4 |
48 |
| 450 |
660 |
600 |
34 |
20-M30 |
555 |
4 |
50 |
| 500 |
730 |
660 |
41 |
20-M36 |
610 |
4 |
52 |
| 600 |
840 |
770 |
41 |
20-M36 |
718 |
5 |
56 |
| 700 |
955 |
875 |
48 |
24-M42 |
815 |
5 |
60 |
| 800 |
1070 |
990 |
48 |
24-M42 |
930 |
5 |
64 |