JKR/JBA Standard
| DIAMETER & DIMENSION BS 534 : 1990
JKR/JBA Standard
Nominal Diameter
(mm)
Internal Diameter
(mm)
Steel Shell Thinkness
(mm)
Cement Lining Thickness
(mm)
Finished External Diameter
(mm)
Testing Pressure
(BAR)
Approximate Mass
Steel Shell
(kg/m)
Cement Lining
(kg/m)
Bitumen Wrapping
(kg/m)
100
93.7
4.1
10
121.9
70
11.9
7.5
2.4
150
149.1
4.1
10
177.3
70
17.5
11.6
3.5
200
204.0
4.1
10
232.2
70
23.1
15.6
4.5
250
257.8
4.1
10
286.0
70
28.5
19.5
5.5
300
313.8
5.8
10
245.4
70
48.6
23.6
6.7
350
361.7
5.8
13
399.3
63
56.3
35.5
10.3
400
415.5
5.8
13
453.1
56
64.0
40.6
11.7
450
469.4
5.8
13
507.0
50
71.7
45.7
13.1
500
522.7
5.8
13
560.3
45
79.3
50.7
14.4
600
628.0
6.5
13
667.0
40
105.9
60.7
17.1
650
651.2
7.4
13
692.0
47
124.9
62.9
17.8
700
701.2
7.4
19
754.0
43
136.2
99.6
19.3
750
751.2
7.4
19
804.0
40
145.4
106.5
20.6
800
801.2
7.4
19
854.0
38
154.5
113.5
21.9
850
851.2
7.4
19
904.0
36
163.6
120.4
23.2
900
901.2
7.4
19
954.0
34
172.7
127.3
24.4
1000
1000.0
8
19
1054.0
32
206.4
140.9
27.0
1050
1050.0
9.5
19
1107.0
31
257.1
147.9
28.3
1100
1100.0
9.5
19
1157.0
30
268.8
154.8
29.6
1150
1150.0
9.5
25
1219.0
28
283.3
213.9
31.2
1200
1200.0
10
25
1270.0
29
310.7
223.0
32.5
1300
1300.0
11
25
1372.0
29
369.2
241.2
35.1
1400
1400.0
11
25
1472.0
27
396.3
259.4
37.6
1500
1500.0
13
25
1576.0
30
501.1
277.6
40.2
1600
1600.0
13
25
1676.0
28
533.1
295.8
42.8
1700
1700.0
13
25
1776.0
26
565.2
314.0
45.3
1800
1800.0
13
25
1876.0
26
597.2
332.2
47.9
1900
1900.0
13
25
1976.0
24
629.3
350.4
50.4
2000
2000.0
14
30
2088.0
24
716.0
443.4
53.3
2100
2100.0
14.5
30
2189.0
24
777.5
465.2
55.8
2200
2200.0
15
30
2290.0
24
841.5
487.0
58.4
Spiral Process
Section Process
Common Process
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