Flange connection
Machinery industry standard JB/T81-94
PN 1.6MPa (16bar)
|
Inside nominal diameter(DN) |
B |
C |
D1 |
D2 |
D3 |
f |
n |
L |
|
10 |
10 |
14 |
40 |
60 |
90 |
2 |
4 |
14 |
|
15 |
15 |
14 |
45 |
65 |
95 |
2 |
4 |
14 |
|
20 |
20 |
16 |
55 |
75 |
105 |
2 |
4 |
14 |
|
25 |
25 |
18 |
65 |
85 |
115 |
2 |
4 |
14 |
|
32 |
32 |
18 |
78 |
100 |
140/135 |
2 |
4 |
18 |
|
40 |
40 |
20 |
85 |
110 |
150/145 |
3 |
4 |
18 |
|
50 |
50 |
22 |
100 |
125 |
165/160 |
3 |
4 |
18 |
|
65 |
65 |
24 |
120 |
145 |
185/180 |
3 |
4 |
18 |
|
80 |
80 |
24 |
135 |
160 |
200/195 |
3 |
8 |
18 |
|
100 |
100 |
26 |
155 |
180 |
220/215 |
3 |
8 |
18 |
|
125 |
125 |
28 |
185 |
210 |
250/245 |
3 |
8 |
18 |
|
150 |
150 |
28 |
210 |
240 |
285/280 |
3 |
8 |
23 |
|
175 |
175 |
28 |
240 |
270 |
310 |
3 |
8 |
23 |
|
200 |
200 |
30 |
265 |
295 |
340/335 |
3 |
12 |
23 |
|
225 |
225 |
30 |
295 |
325 |
365 |
3 |
12 |
23 |
|
250 |
250 |
32 |
320 |
355 |
405 |
3 |
12 |
26/25 |
|
300 |
300 |
32 |
375 |
410 |
460 |
4 |
12 |
26/25 |
State standard GB9119-2000
PN 1.6MPa (16bar)
|
Inside nominal diameter(DN) |
B |
C |
D1 |
D2 |
D3 |
f |
n |
L |
|
10 |
10 |
14 |
40 |
60 |
90 |
2 |
4 |
14 |
|
15 |
15 |
14 |
46 |
65 |
95 |
2 |
4 |
14 |
|
20 |
20 |
16 |
56 |
75 |
105 |
2 |
4 |
14 |
|
25 |
25 |
16 |
65 |
85 |
115 |
2 |
4 |
14 |
|
32 |
32 |
18 |
76 |
100 |
140 |
2 |
4 |
18 |
|
40 |
40 |
18 |
84 |
110 |
150 |
2 |
4 |
18 |
|
50 |
50 |
20 |
99 |
125 |
165 |
2 |
4 |
18 |
|
65 |
65 |
20 |
118 |
145 |
185 |
2 |
4 |
18 |
|
80 |
80 |
20 |
132 |
160 |
200 |
2 |
8 |
18 |
|
100 |
100 |
22 |
156 |
180 |
220 |
2 |
8 |
18 |
|
125 |
125 |
22 |
184 |
210 |
250 |
2 |
8 |
18 |
|
150 |
150 |
24 |
211 |
240 |
285 |
2 |
8 |
22 |
|
200 |
200 |
24 |
266 |
295 |
340 |
2 |
12 |
22 |
|
250 |
250 |
26 |
319 |
355 |
405 |
2 |
12 |
26 |
|
300 |
300 |
28 |
370 |
410 |
460 |
2 |
12 |
26 |
USA standard ASME/SNSL B16.5a-1992
CLASS 150 RF (PN2.0MPa)
|
Inside nominal diameter(DN) |
B |
C |
D1 |
D2 |
D3 |
f |
n |
L |
|
25 |
1 |
14 |
51 |
74.5 |
108 |
2 |
4 |
15 |
|
40 |
11/2 |
17 |
73 |
98.5 |
127 |
2 |
4 |
15 |
|
50 |
2 |
18 |
92 |
120.5 |
152 |
2 |
4 |
18 |
|
65 |
21/2 |
20 |
105 |
139.5 |
178 |
2 |
4 |
18 |
|
80 |
3 |
21 |
127 |
152.5 |
190 |
2 |
4 |
18 |
|
100 |
4 |
26 |
157 |
190.5 |
229 |
2 |
8 |
18 |
|
125 |
5 |
26 |
186 |
216 |
254 |
2 |
8 |
22 |
|
150 |
6 |
28 |
216 |
241.5 |
279 |
2 |
8 |
22 |
|
200 |
8 |
31 |
270 |
298.5 |
343 |
2 |
8 |
22 |
|
250 |
10 |
33 |
324 |
362 |
406 |
2 |
12 |
26 |
|
300 |
12 |
34 |
381 |
432 |
483 |
2 |
12 |
26 |
Japan flange details:
Whole stainless flange JIS B2212-B2214-1999
|
JIS 10K Therefore |
DN |
D |
K |
L |
Boltn-Th |
d |
f |
C |
|
100 |
210 |
175 |
19 |
8-M16 |
155 |
2 |
18 |
|
|
125 |
250 |
210 |
23 |
8-M20 |
185 |
2 |
20 |
|
|
150 |
280 |
240 |
23 |
8-M20 |
215 |
2 |
22 |
|
|
200 |
330 |
290 |
23 |
12-M20 |
265 |
2 |
22 |
|
|
250 |
400 |
355 |
25 |
12-M22 |
325 |
2 |
24 |
|
|
300 |
445 |
400 |
25 |
16-M22 |
370 |
3 |
24 |
|
|
350 |
490 |
445 |
25 |
16-M22 |
415 |
3 |
26 |
|
|
400 |
560 |
510 |
27 |
16-M22 |
475 |
3 |
28 |
|
|
450 |
620 |
565 |
27 |
20-M24 |
530 |
3 |
30 |
|
|
500 |
675 |
620 |
27 |
20-M24 |
585 |
3 |
30 |
|
JIS 20K Therefore |
DN |
D |
K |
L |
Boltn-Th |
d |
f |
C |
|
100 |
255 |
185 |
23 |
8-M20 |
160 |
2 |
24 |
|
|
125 |
270 |
225 |
25 |
8-M22 |
195 |
2 |
26 |
|
|
150 |
305 |
260 |
25 |
12-M22 |
230 |
2 |
28 |
|
|
200 |
350 |
305 |
25 |
12-M22 |
275 |
2 |
30 |
|
|
250 |
430 |
380 |
27 |
12-M24 |
345 |
2 |
34 |
|
|
300 |
480 |
430 |
27 |
16-M24 |
395 |
3 |
35 |
|
|
350 |
540 |
480 |
33 |
16-M30Í3 |
440 |
3 |
40 |
|
|
400 |
605 |
540 |
33 |
16-M30Í3 |
495 |
3 |
46 |
|
|
450 |
675 |
605 |
33 |
20-M30Í3 |
560 |
3 |
48 |
|
|
500 |
730 |
660 |
33 |
20-M30Í3 |
615 |
3 |
50 |
If system pipe is bigger than pump standard caliber, customer need to tell us while selecting pump model.
