BS 4504 Weld Neck Flange Dimensions and Technical Drawing
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BS 4504 Weld Neck Flange Dimensions
Dimensions in MM
DN |
PN |
A mm |
B mm |
C mm |
D mm |
E mm |
F mm |
G mm |
H mm |
10 |
2.5,6 |
75 |
17.2 |
12 |
28 |
6 |
26 |
3 |
1.8 |
10 |
90 |
14 |
35 |
ใ |
28 |
1.8 |
16 |
90 |
14 |
35 |
ใ |
28 |
1.8 |
25 |
90 |
16 |
35 |
ใ |
28 |
1.8 |
40 |
90 |
16 |
35 |
ใ |
28 |
1.8 |
15 |
2.5,6 |
80 |
21.3 |
12 |
30 |
6 |
30 |
3 |
2 |
10 |
95 |
14 |
35 |
32 |
2 |
16 |
95 |
14 |
35 |
32 |
2 |
25 |
95 |
16 |
38 |
32 |
2 |
40 |
95 |
16 |
38 |
32 |
2 |
20 |
2.5,6 |
90 |
26.9 |
14 |
32 |
6 |
38 |
4 |
2.3 |
10 |
105 |
16 |
38 |
39 |
2.3 |
16 |
105 |
16 |
38 |
39 |
2.3 |
25 |
105 |
18 |
40 |
40 |
2.3 |
40 |
105 |
18 |
40 |
40 |
2.3 |
25 |
2.5,6 |
100 |
33.7 |
14 |
35 |
6 |
42 |
4 |
2.6 |
10 |
115 |
16 |
38 |
46 |
2.6 |
16 |
115 |
16 |
38 |
46 |
2.6 |
25 |
115 |
18 |
40 |
46 |
2.6 |
40 |
115 |
18 |
40 |
46 |
2.6 |
32 |
2.5,6 |
120 |
42.4 |
14 |
35 |
6 |
55 |
5 |
2.6 |
10 |
140 |
16 |
40 |
56 |
2.6 |
16 |
140 |
16 |
40 |
56 |
2.6 |
25 |
140 |
18 |
42 |
56 |
2.6 |
40 |
140 |
18 |
42 |
56 |
2.6 |
40 |
2.5,6 |
130 |
48.3 |
14 |
38 |
7 |
62 |
5 |
2.6 |
10 |
150 |
16 |
42 |
64 |
2.6 |
16 |
150 |
16 |
42 |
64 |
2.6 |
25 |
150 |
18 |
45 |
64 |
2.6 |
40 |
150 |
18 |
45 |
64 |
2.6 |
50 |
2.5,6 |
140 |
60.3 |
14 |
38 |
8 |
74 |
5 |
2.9 |
10 |
165 |
18 |
45 |
74 |
2.9 |
16 |
165 |
18 |
45 |
74 |
2.9 |
25 |
165 |
20 |
48 |
74 |
2.9 |
40 |
165 |
20 |
48 |
74 |
2.9 |
65 |
2.5,6 |
160 |
76.1 |
14 |
38 |
9 |
88 |
6 |
2.9 |
10 |
185 |
18 |
45 |
10 |
92 |
2.9 |
16 |
185 |
18 |
45 |
92 |
2.9 |
25 |
185 |
22 |
52 |
92 |
2.9 |
40 |
185 |
22 |
52 |
92 |
2.9 |
80 |
2.5,6 |
190 |
88.9 |
16 |
42 |
10 |
102 |
6 |
3.2 |
10 |
200 |
20 |
50 |
110 |
3.2 |
16 |
200 |
20 |
50 |
12 |
110 |
3.2 |
25 |
200 |
24 |
58 |
110 |
3.2 |
40 |
200 |
24 |
58 |
110 |
3.2 |
100 |
2.5,6 |
210 |
114.3 |
16 |
45 |
10 |
130 |
6 |
3.6 |
10 |
220 |
20 |
52 |
12 |
130 |
3.6 |
16 |
220 |
20 |
52 |
130 |
3.6 |
25 |
235 |
24 |
65 |
134 |
3.6 |
40 |
235 |
24 |
65 |
134 |
3.6 |
125 |
2.5,6 |
240 |
139.7 |
18 |
48 |
10 |
155 |
6 |
4 |
10 |
250 |
22 |
55 |
12 |
158 |
4 |
16 |
250 |
22 |
55 |
158 |
4 |
25 |
270 |
26 |
68 |
162 |
4 |
40 |
270 |
26 |
68 |
162 |
4 |
150 |
2.5,6 |
265 |
168.3 |
18 |
48 |
12 |
184 |
8 |
4.5 |
10 |
285 |
22 |
55 |
184 |
4.5 |
16 |
285 |
22 |
55 |
184 |
4.5 |
25 |
300 |
28 |
75 |
190 |
4.5 |
40 |
300 |
28 |
75 |
190 |
4.5 |
200 |
2.5,6 |
320 |
219.1 |
20 |
55 |
15 |
236 |
8 |
5.6 |
10 |
340 |
24 |
62 |
16 |
234 |
5.6 |
16 |
340 |
24 |
62 |
234 |
5.6 |
25 |
360 |
30 |
80 |
244 |
6.3 |
40 |
375 |
34 |
88 |
244 |
6.3 |
250 |
2.5,6 |
375 |
273 |
22 |
60 |
15 |
290 |
10 |
6.3 |
10 |
395 |
26 |
68 |
16 |
288 |
6.3 |
16 |
405 |
26 |
70 |
288 |
6.3 |
25 |
425 |
32 |
88 |
18 |
296 |
7.1 |
40 |
450 |
38 |
105 |
306 |
7.1 |
300 |
2.5,6 |
440 |
323.9 |
22 |
62 |
15 |
342 |
10 |
7.1 |
10 |
445 |
26 |
68 |
16 |
342 |
7.1 |
16 |
460 |
28 |
78 |
342 |
7.1 |
25 |
485 |
34 |
92 |
18 |
350 |
8 |
40 |
515 |
42 |
115 |
362 |
8 |
350 |
2.5,6 |
490 |
355.6 |
22 |
62 |
15 |
385 |
10 |
7.1 |
10 |
505 |
26 |
68 |
16 |
390 |
7.1 |
16 |
520 |
30 |
82 |
390 |
8 |
25 |
555 |
38 |
100 |
20 |
398 |
8 |
40 |
580 |
46 |
125 |
408 |
8.8 |
400 |
2.5,6 |
540 |
406.4 |
22 |
65 |
15 |
438 |
10 |
7.1 |
10 |
565 |
26 |
72 |
16 |
440 |
7.1 |
16 |
580 |
32 |
85 |
444 |
8 |
25 |
620 |
40 |
110 |
20 |
452 |
8.8 |
40 |
660 |
50 |
135 |
462 |
11 |
450 |
2.5,6 |
595 |
457 |
24 |
65 |
15 |
492 |
12 |
7.1 |
ใ |
10 |
615 |
28 |
72 |
16 |
488 |
7.1 |
ใ |
16 |
640 |
34 |
87 |
490 |
8 |
ใ |
25 |
670 |
42 |
110 |
20 |
500 |
8.8 |
ใ |
40 |
685 |
50 |
135 |
500 |
12.5 |
500 |
2.5,6 |
645 |
508 |
24 |
68 |
15 |
538 |
12 |
7.1 |
10 |
670 |
28 |
75 |
16 |
540 |
7.1 |
16 |
715 |
34 |
90 |
546 |
8 |
25 |
730 |
44 |
125 |
20 |
558 |
10 |
40 |
755 |
52 |
140 |
562 |
14.2 |
600 |
2.5,6 |
755 |
610 |
24 |
70 |
16 |
640 |
12 |
7.1 |
10 |
780 |
28 |
80 |
18 |
640 |
7.1 |
16 |
840 |
36 |
95 |
650 |
8.8 |
25 |
845 |
46 |
125 |
20 |
660 |
11 |
40 |
890 |
60 |
150 |
666 |
16 |
700 |
2.5 |
860 |
711 |
24 |
70 |
16 |
740 |
12 |
-1 |
6 |
860 |
24 |
70 |
740 |
7.1 |
10 |
895 |
30 |
80 |
18 |
746 |
8 |
16 |
910 |
36 |
100 |
750 |
8.8 |
25 |
960 |
46 |
125 |
20 |
760 |
12.5 |
800 |
2.5 |
975 |
813 |
26 |
70 |
16 |
842 |
12 |
-1 |
6 |
975 |
24 |
70 |
842 |
7.1 |
10 |
1015 |
32 |
90 |
18 |
848 |
8 |
16 |
1025 |
38 |
105 |
20 |
848 |
10 |
25 |
1085 |
50 |
135 |
22 |
864 |
14.2 |
900 |
2.5 |
1075 |
914 |
26 |
70 |
16 |
942 |
12 |
-1 |
6 |
1075 |
26 |
70 |
942 |
7.1 |
10 |
1115 |
34 |
95 |
20 |
948 |
10 |
16 |
1125 |
40 |
110 |
948 |
10 |
25 |
1185 |
54 |
145 |
24 |
968 |
16 |
1000 |
2.5 |
1175 |
1016 |
26 |
70 |
16 |
1045 |
12 |
-1 |
6 |
1175 |
26 |
70 |
1045 |
7.1 |
10 |
1230 |
34 |
95 |
20 |
1050 |
10 |
16 |
1255 |
42 |
120 |
22 |
1056 |
10 |
25 |
1320 |
58 |
155 |
24 |
1070 |
17.5 |
1200 |
2.5 |
1375 |
1220 |
26 |
70 |
16 |
1245 |
16 |
-1 |
6 |
1405 |
28 |
90 |
20 |
1248 |
12 |
8 |
10 |
1455 |
38 |
115 |
25 |
1256 |
11 |
16 |
1485 |
48 |
130 |
30 |
1260 |
12.5 |
1400 |
2.5 |
1575 |
1420 |
26 |
70 |
16 |
1445 |
16 |
-1 |
6 |
1630 |
32 |
90 |
20 |
1452 |
12 |
8 |
10 |
1675 |
42 |
120 |
25 |
1460 |
12 |
16 |
1685 |
52 |
145 |
30 |
1465 |
14.2 |
1600 |
2.5 |
1790 |
1620 |
26 |
80 |
20 |
1645 |
16 |
-1 |
6 |
1830 |
34 |
90 |
1655 |
12 |
9 |
10 |
1915 |
46 |
130 |
25 |
1666 |
14 |
16 |
1930 |
58 |
160 |
35 |
1668 |
16 |
1800 |
2.5 |
1990 |
1820 |
26 |
80 |
20 |
1845 |
16 |
-1 |
6 |
2045 |
36 |
100 |
1855 |
15 |
10 |
10 |
2115 |
50 |
140 |
30 |
1866 |
15 |
16 |
2130 |
62 |
170 |
35 |
1870 |
17.5 |
2000 |
2.5 |
2190 |
2020 |
26 |
80 |
22 |
2045 |
16 |
-1 |
6 |
2265 |
38 |
110 |
25 |
2058 |
15 |
11 |
10 |
2325 |
54 |
150 |
30 |
2070 |
16 |
16 |
2345 |
66 |
190 |
40 |
2072 |
20 |
BS 4504 Weld Neck Flange Industries and Applications
Widely used in the industries
- Pumps, Valves, and vessels in manufacturing and food processing.
- Pipe connections in industrial waterworks.
- Heat exchangers and heating systems of all sizes.
- Mining support.
- Nuclear power systems.
- Plumbing and mechanical systems.
- Assemblies in the oil, gas, and petrochemical industries.
- Fire protection systems.
BS 4504 Weld Neck Flange Supply and Export Network
List of Cities and Countries