| BS4504
Part 1 PIPE FLANGES
We stock a full range
of BS4504 flanges, from table 6 bar to 40 bar in grades 304, 316 and 321.
Specials can be manufactured to customer’s special requirements.
As an example, we show the dimensions of 16 bar, which is the most commonly
used.
We also offer a range of BS10 Table and ANSI flanges. For more information
contact our sales desk.
| |
WELD
NECK FLANGE |
| |
SCREWED
BOSS FLANGE |
| |
SLIP
ON BOSS FLANGE |
| |
PLATE
FLANGE |
 |
PLATE
BLANK FLANGE |
BS4504:Part
1:1969 PIPE FLANGES
Dimensions of Nominal Pressure 2.5 & 6 Flanges
| N.B |
Size |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
No.
of
Holes |
|
|
D |
C1 |
C2 |
C3 |
F |
E |
B |
H1 |
H2 |
H3 |
N1 |
N2 |
A |
K |
R |
L |
| Ins |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3/8 |
10 |
75 |
12 |
12 |
12 |
2 |
35 |
18.2 |
20 |
28 |
6 |
26 |
25 |
17.2 |
50 |
3 |
11 |
4 |
| ½ |
15 |
80 |
12 |
12 |
12 |
2 |
40 |
22.4 |
20 |
30 |
6 |
30 |
30 |
21.3 |
55 |
3 |
11 |
4 |
|
¾ |
20 |
90 |
14 |
14 |
14 |
2 |
50 |
27.7 |
24 |
32 |
6 |
38 |
40 |
26.9 |
65 |
4 |
11 |
4 |
| 1" |
25 |
100 |
14 |
14 |
14 |
2 |
60 |
34.5 |
24 |
35 |
6 |
42 |
50 |
33.7 |
75 |
4 |
11 |
4 |
|
1
¼ |
32 |
120 |
16 |
14 |
14 |
2 |
70 |
43.2 |
26 |
35 |
6 |
55 |
60 |
42.4 |
90 |
5 |
14 |
4 |
| 1
½ |
40 |
130 |
16 |
14 |
14 |
3 |
80 |
49.5 |
26 |
38 |
7 |
62 |
70 |
48.3 |
100 |
5 |
14 |
4 |
|
2" |
50 |
140 |
16 |
14 |
14 |
3 |
90 |
62.0 |
28 |
38 |
8 |
74 |
80 |
60.3 |
110 |
5 |
14 |
4 |
| 2
½ |
65 |
160 |
16 |
14 |
14 |
3 |
110 |
74.7 |
32 |
38 |
9 |
88 |
100 |
76.1 |
130 |
6 |
14 |
4 |
|
3 |
80 |
190 |
18 |
16 |
16 |
3 |
128 |
90.7 |
34 |
42 |
10 |
102 |
110 |
88.9 |
150 |
6 |
18 |
4 |
| 4 |
100 |
210 |
18 |
16 |
16 |
3 |
148 |
116.1 |
40 |
45 |
10 |
130 |
130 |
114.3 |
170 |
6 |
18 |
4 |
|
5 |
125 |
240 |
20 |
18 |
18 |
3 |
178 |
143.8 |
44 |
48 |
10 |
155 |
160 |
139.7 |
200 |
6 |
18 |
8 |
| 6 |
150 |
265 |
20 |
18 |
18 |
3 |
202 |
170.7 |
44 |
48 |
12 |
184 |
185 |
168.3 |
225 |
8 |
18 |
8 |
|
8 |
200 |
320 |
22 |
20 |
20 |
3 |
258 |
221.5 |
44 |
55 |
15 |
236 |
240 |
219.1 |
280 |
8 |
18 |
8 |
| 10 |
250 |
375 |
24 |
22 |
22 |
3 |
312 |
276.4 |
44 |
60 |
15 |
290 |
295 |
273.0 |
335 |
10 |
18 |
12 |
|
12 |
300 |
440 |
24 |
22 |
22 |
4 |
365 |
327.2 |
44 |
62 |
15 |
342 |
355 |
323.9 |
395 |
10 |
22 |
12 |
| 14 |
350 |
490 |
26 |
22 |
22 |
4 |
415 |
359.2 |
- |
62 |
15 |
385 |
- |
355.6 |
445 |
10 |
22 |
12 |
|
16 |
400 |
540 |
28 |
22 |
22 |
4 |
465 |
410.5 |
- |
65 |
15 |
438 |
- |
406.4 |
495 |
10 |
22 |
16 |
| 18 |
450 |
595 |
30 |
24 |
24 |
4 |
520 |
461.8 |
- |
65 |
15 |
492 |
- |
457.0 |
550 |
12 |
22 |
16 |
|
20 |
500 |
645 |
30 |
24 |
24 |
4 |
570 |
513.1 |
- |
68 |
15 |
538 |
- |
508.0 |
600 |
12 |
22 |
20 |
| 24 |
600 |
755 |
32 |
24 |
34 |
5 |
670 |
616.0 |
- |
70 |
16 |
640 |
- |
610.0 |
705 |
12 |
26 |
20 |
BS4504:Part
1:1969 PIPE FLANGES
Dimensions of Nominal Pressure 10 Flanges
| N.B |
Size |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
No.
of
Holes |
|
|
D |
C1 |
C2 |
C3 |
F |
E |
B |
H1 |
H2 |
H3 |
N1 |
N2 |
A |
G |
K |
R |
L |
| Ins |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8 |
200 |
340 |
24 |
24 |
24 |
3 |
268 |
221.5 |
44 |
62 |
16 |
235 |
247 |
219.1 |
190 |
295 |
10 |
22 |
8 |
| 10 |
250 |
395 |
26 |
26 |
26 |
3 |
320 |
276.4 |
46 |
68 |
16 |
292 |
292 |
273.0 |
237 |
350 |
12 |
22 |
12 |
|
12 |
300 |
445 |
26 |
26 |
26 |
4 |
370 |
327.2 |
46 |
68 |
16 |
344 |
344 |
323.9 |
285 |
400 |
12 |
22 |
12 |
| 14 |
350 |
505 |
28 |
26 |
26 |
4 |
430 |
359.2 |
- |
68 |
16 |
385 |
- |
355.6 |
332 |
460 |
12 |
22 |
16 |
|
16 |
400 |
565 |
32 |
26 |
26 |
4 |
482 |
410.5 |
- |
72 |
16 |
440 |
- |
406.4 |
380 |
515 |
12 |
26 |
16 |
| 18 |
450 |
615 |
36 |
28 |
28 |
4 |
532 |
461.8 |
- |
72 |
16 |
492 |
- |
457.2 |
428 |
565 |
12 |
26 |
20 |
|
20 |
500 |
670 |
38 |
28 |
28 |
4 |
585 |
513.1 |
- |
75 |
16 |
542 |
- |
508.0 |
475 |
620 |
12 |
26 |
20 |
| 24 |
600 |
780 |
42 |
28 |
- |
5 |
685 |
616.0 |
- |
80 |
18 |
642 |
- |
609.6 |
- |
725 |
12 |
30 |
20 |
BS4504:Part
1:1969 PIPE FLANGES
Dimensions of Nominal Pressure 16 Flanges
| N.B |
Size |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
No.
of
Holes |
|
|
D |
C1 |
C2 |
C3 |
F |
E |
B |
H1 |
H2 |
H3 |
N1 |
N2 |
A |
G |
K |
R |
L |
| Ins |
mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3/8 |
10 |
90 |
14 |
14 |
14 |
2 |
40 |
18.2 |
20 |
35 |
6 |
28 |
30 |
17.2 |
- |
60 |
4 |
14 |
4 |
| ½ |
15 |
95 |
14 |
14 |
14 |
2 |
45 |
22.4 |
20 |
35 |
6 |
32 |
35 |
21.3 |
- |
65 |
4 |
14 |
4 |
|
¾ |
20 |
105 |
16 |
16 |
16 |
2 |
58 |
27.7 |
24 |
38 |
6 |
39 |
45 |
26.9 |
- |
75 |
4 |
14 |
4 |
| 1" |
25 |
115 |
16 |
16 |
16 |
2 |
68 |
34.5 |
24 |
38 |
6 |
46 |
52 |
33.7 |
- |
85 |
4 |
14 |
4 |
|
1
¼ |
32 |
140 |
16 |
16 |
16 |
2 |
78 |
43.2 |
26 |
40 |
6 |
56 |
60 |
42.4 |
- |
100 |
6 |
18 |
4 |
| 1
½ |
40 |
150 |
16 |
16 |
16 |
3 |
88 |
49.5 |
26 |
42 |
7 |
64 |
70 |
48.3 |
- |
110 |
6 |
18 |
4 |
|
2" |
50 |
165 |
18 |
18 |
18 |
3 |
102 |
62.0 |
28 |
45 |
8 |
74 |
84 |
60.3 |
- |
125 |
6 |
18 |
4 |
| 2
½ |
65 |
185 |
18 |
18 |
18 |
3 |
122 |
74.7 |
32 |
45 |
10 |
92 |
104 |
76.1 |
55 |
145 |
6 |
18 |
4 |
|
3 |
80 |
200 |
20 |
20 |
20 |
3 |
138 |
90.7 |
34 |
50 |
10 |
110 |
118 |
88.9 |
70 |
160 |
8 |
18 |
8 |
| 4 |
100 |
220 |
20 |
20 |
20 |
3 |
158 |
116.1 |
40 |
52 |
12 |
130 |
140 |
114.3 |
90 |
180 |
8 |
18 |
8 |
|
5 |
125 |
250 |
22 |
22 |
22 |
3 |
188 |
143.8 |
44 |
55 |
12 |
158 |
168 |
139.7 |
115 |
210 |
8 |
18 |
8 |
| 6 |
150 |
285 |
22 |
22 |
22 |
3 |
212 |
170.7 |
44 |
55 |
12 |
184 |
195 |
168.3 |
140 |
240 |
10 |
22 |
8 |
|
8 |
200 |
340 |
24 |
24 |
24 |
3 |
268 |
221.5 |
44 |
62 |
16 |
234 |
246 |
219.1 |
190 |
295 |
10 |
| |