BS 4504 Blank Flange Dimensions, Blind Flange Technical Drawing
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BS 4504 Blind Flange Dimensions
Dimensions in MM
| DN |
PN |
A mm |
B mm |
C mm |
| 10 |
2.5, 6 |
75 |
12 |
– |
| 10 &16 |
90 |
14 |
– |
| 25 & 40 |
90 |
16 |
– |
| 15 |
2.5 & 6 |
80 |
12 |
– |
| 10 &16 |
95 |
14 |
– |
| 25 & 40 |
95 |
16 |
– |
| 20 |
2.5 & 6 |
90 |
14 |
– |
| 10 &16 |
105 |
16 |
– |
| 25 & 40 |
105 |
18 |
– |
| 25 |
2.5 & 6 |
100 |
14 |
– |
| 10 &16 |
115 |
16 |
– |
| 25 & 40 |
115 |
18 |
– |
| 32 |
2.5 & 6 |
120 |
14 |
– |
| 10 &16 |
140 |
16 |
– |
| 25 & 40 |
140 |
18 |
– |
| 40 |
2.5 & 6 |
130 |
14 |
– |
| 10 &16 |
150 |
16 |
– |
| 25 & 40 |
150 |
18 |
– |
| 50 |
2.5 & 6 |
140 |
14 |
– |
| 10 & 16 |
165 |
18 |
– |
| 25 & 40 |
165 |
20 |
– |
| 65 |
2.5 & 6 |
160 |
14 |
55 |
| 10 & 16 |
185 |
18 |
55 |
| 25 & 40 |
185 |
22 |
55 |
| 80 |
2.5 & 6 |
190 |
16 |
70 |
| 10 &16 |
200 |
20 |
70 |
| 25&40 |
200 |
24 |
70 |
| 100 |
2.5 & 6 |
210 |
16 |
90 |
| 10 &16 |
220 |
20 |
90 |
| 25&40 |
235 |
24 |
90 |
| 125 |
2.5 & 6 |
240 |
18 |
115 |
| 10 & 16 |
250 |
22 |
115 |
| 25 & 40 |
270 |
26 |
115 |
| 150 |
2.5 & 6 |
265 |
18 |
140 |
| 10 & 16 |
285 |
22 |
140 |
| 25 & 40 |
300 |
28 |
140 |
| 200 |
2.5 & 6 |
320 |
20 |
190 |
| 10 &16 |
340 |
24 |
190 |
| 25 |
360 |
30 |
190 |
| 40 |
375 |
34 |
190 |
| 250 |
2.5 & 6 |
375 |
22 |
235 |
| 10 |
395 |
26 |
235 |
| 16 |
405 |
26 |
235 |
| 25 |
425 |
32 |
235 |
| 40 |
450 |
38 |
235 |
| 300 |
2.5 & 6 |
440 |
22 |
285 |
| 10 |
445 |
26 |
285 |
| 16 |
460 |
28 |
285 |
| 25 |
485 |
34 |
285 |
| 40 |
515 |
42 |
285 |
| 350 |
2.5 & 6 |
490 |
22 |
325 |
| 10 |
505 |
26 |
325 |
| 16 |
520 |
30 |
325 |
| 25 |
555 |
38 |
325 |
| 40 |
580 |
46 |
325 |
| 400 |
2.5 & 6 |
540 |
22 |
375 |
| 10 |
565 |
26 |
375 |
| 16 |
580 |
32 |
375 |
| 25 |
620 |
40 |
375 |
| 40 |
660 |
50 |
375 |
| 450 |
2.5 & 6 |
595 |
24 |
425 |
| 10 |
615 |
28 |
425 |
| 16 |
640 |
34 |
425 |
| 25 |
670 |
42 |
425 |
| 40 |
685 |
54 |
425 |
| 500 |
2.5 & 6 |
645 |
24 |
475 |
| 10 |
670 |
28 |
475 |
| 16 |
715 |
36 |
475 |
| 25 |
730 |
45 |
475 |
| 40 |
755 |
56 |
475 |
| 600 |
2.5 & 6 |
755 |
34 |
575 |
| 10 |
780 |
34 |
575 |
| 16 |
840 |
44 |
575 |
| 25 |
845 |
54 |
575 |
| 40 |
890 |
70 |
575 |
| 700 |
2.5 |
860 |
36 |
– |
| 6 |
860 |
38 |
– |
| 10 |
895 |
38 |
670 |
| 16 |
910 |
48 |
670 |
| 800 |
2.5 |
975 |
38 |
– |
| 6 |
975 |
42 |
– |
| 10 |
1015 |
42 |
770 |
| 16 |
1025 |
52 |
770 |
| 900 |
2.5 |
1075 |
40 |
– |
| 6 |
1075 |
46 |
– |
| 10 |
1115 |
46 |
860 |
| 16 |
1125 |
58 |
860 |
| 1000 |
2.5 |
1175 |
42 |
– |
| 6 |
1175 |
52 |
– |
| 10 |
1230 |
52 |
960 |
| 16 |
1255 |
64 |
960 |
| 1200 |
2.5 |
1375 |
44 |
– |
| 6 |
1405 |
60 |
– |
| 10 |
1455 |
60 |
1160 |
| 16 |
1485 |
76 |
1160 |
| 1400 |
2.5 |
1575 |
48 |
– |
| 6 |
1630 |
68 |
– |
| 1600 |
2.5 |
1790 |
51 |
– |
| 6 |
1830 |
76 |
– |
| 1800 |
2.5 |
1990 |
54 |
– |
| 6 |
2045 |
84 |
– |
| 2000 |
2.5 |
2190 |
58 |
– |
| 6 |
2265 |
92 |
– |
BS 4504 Blank 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 Blank Flange Supply and Export Network
List of Cities and Countries
