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BS 1123 Flanges Manufacturer in China | SANS 1123 Pipe Flange Supplier
BS 1123 Flanges
BS 1123 flange is a British standard pipe flange specification widely used in South Africa and other international markets. It defines requirements for flange dimensions, pressure ratings, materials, and manufacturing requirements for industrial piping systems.
Yu Jinduo manufactures BS 1123 / SANS 1123 flanges according to international standards, providing reliable flange solutions for water treatment, mining, oil & gas, petrochemical, power generation and industrial piping applications.
Our BS 1123 flanges are available in various types, pressure ratings and materials, including carbon steel, stainless steel and alloy steel.
SABS/ SANS 1123 Flanges Class 1000KPA Specification
|
Nominal pressure 1000 kPa 1000/2 = Table 91000/4 = Table 111000/3 = Table 10 1000/8 = Table 13
|
||||||||||||||||||
|
NB
|
Pipe O.D.
d1 |
Flange
|
Raised Face
|
Bolt
|
Drilling
|
Neck
|
Boss
|
|||||||||||
|
D
|
b
|
b1
|
b2
|
b3
|
h
|
h1
|
d4
|
f
|
No.
|
d2
|
k
|
d3
|
h2
|
r
|
d5
|
|||
|
10
|
17.2
|
90
|
8
|
10
|
8
|
10
|
14
|
35
|
40
|
2
|
M12
|
4
|
14
|
60
|
28
|
6
|
4
|
30
|
|
15
|
21.3
|
95
|
8
|
10
|
8
|
10
|
14
|
35
|
45
|
2
|
M12
|
4
|
14
|
65
|
32
|
6
|
4
|
35
|
|
20
|
26.9
|
105
|
8
|
10
|
8
|
10
|
16
|
38
|
58
|
2
|
M12
|
4
|
14
|
75
|
40
|
6
|
4
|
45
|
|
25
|
33.7
|
115
|
8
|
10
|
8
|
10
|
16
|
38
|
68
|
2
|
M12
|
4
|
14
|
85
|
46
|
6
|
4
|
52
|
|
32
|
42.4
|
140
|
10
|
10
|
10
|
10
|
20
|
40
|
78
|
2
|
M16
|
4
|
18
|
100
|
56
|
6
|
6
|
60
|
|
40
|
48.3
|
150
|
10
|
10
|
10
|
10
|
20
|
42
|
88
|
3
|
M16
|
4
|
18
|
110
|
64
|
7
|
6
|
70
|
|
50
|
60.3
|
165
|
12
|
10
|
10
|
12
|
20
|
45
|
102
|
3
|
M16
|
4
|
18
|
125
|
75
|
8
|
6
|
85
|
|
65
|
76.1
|
185
|
12
|
12
|
12
|
12
|
26
|
45
|
122
|
3
|
M16
|
4
|
18
|
145
|
90
|
10
|
6
|
105
|
|
80
|
88.9
|
200
|
14
|
12
|
12
|
14
|
26
|
50
|
138
|
3
|
M16
|
8
|
18
|
160
|
105
|
10
|
8
|
118
|
|
100
|
114.3
|
220
|
14
|
12
|
12
|
14
|
32
|
52
|
158
|
3
|
M16
|
8
|
18
|
180
|
131
|
12
|
8
|
140
|
|
*125
|
139.7
|
250
|
16
|
14
|
14
|
16
|
36
|
55
|
188
|
3
|
M16
|
8
|
18
|
210
|
156
|
12
|
8
|
168
|
|
150
|
168.3
|
285
|
18
|
16
|
16
|
18
|
38
|
55
|
212
|
3
|
M20
|
8
|
22
|
240
|
184
|
12
|
10
|
195
|
|
*175
|
193.7
|
315
|
18
|
16
|
-
|
18
|
-
|
60
|
242
|
3
|
M20
|
8
|
22
|
270
|
210
|
12
|
10
|
-
|
|
200
|
219.1
|
340
|
18
|
18
|
-
|
18
|
-
|
62
|
268
|
3
|
M20
|
8
|
22
|
295
|
235
|
16
|
10
|
-
|
|
*225
|
244.5
|
370
|
18
|
18
|
-
|
18
|
-
|
62
|
290
|
3
|
M20
|
8
|
22
|
325
|
265
|
16
|
10
|
-
|
|
250
|
273.0
|
395
|
20
|
20
|
-
|
20
|
-
|
68
|
320
|
3
|
M20
|
12
|
22
|
350
|
292
|
16
|
12
|
-
|
|
300
|
323.9
|
445
|
22
|
22
|
-
|
22
|
-
|
68
|
370
|
4
|
M20
|
12
|
22
|
400
|
344
|
16
|
12
|
-
|
|
350
|
355.6
|
505
|
26
|
25
|
-
|
25
|
-
|
68
|
430
|
4
|
M20
|
16
|
22
|
460
|
385
|
16
|
12
|
-
|
|
400
|
406.4
|
565
|
26
|
25
|
-
|
25
|
-
|
72
|
482
|
4
|
M24
|
16
|
26
|
515
|
400
|
16
|
12
|
-
|
|
450
|
457.2
|
615
|
28
|
30
|
-
|
30
|
-
|
72
|
532
|
4
|
M24
|
20
|
26
|
565
|
492
|
16
|
12
|
-
|
|
500
|
508.0
|
670
|
28
|
32
|
-
|
32
|
-
|
75
|
585
|
4
|
M24
|
20
|
26
|
620
|
542
|
16
|
12
|
-
|
|
550
|
559.0
|
730
|
28
|
35
|
-
|
35
|
-
|
80
|
635
|
5
|
M24
|
20
|
26
|
675
|
592
|
18
|
12
|
-
|
|
600
|
609.6
|
780
|
28
|
38
|
-
|
38
|
-
|
80
|
685
|
5
|
M24
|
20
|
26
|
725
|
642
|
18
|
12
|
-
|
| * NP = Nominal Pressure 600kPa, 1000kPa, 1600kPa, 2500kPa, 4000kPa | ||||||||||||||||||
