Nominal pipe
size
  DN

Outside Diameter at Bevel

Length

Limiting Wall
Thickness for
length E

Series A

Series B
E
E1
15
21.3
18
25
-
-
20
26.9
25
25
-
-
25
33.7
32
38
-
-
32
42.4
38
38
-
-
40
48.3
45
38
-
-
50
60.3
57
38
44
5.5
65
76.1(73)
76
38
51
7.0
80
88.9
89
51
64
7.6
90
101.6
-
64
76
8.1
100
114.3
108
64
76
8.6
125
139.7
133
76
89
9.5
150
168.3
159
89
102
11.0
200
219.1
219
102
127
12.7
250
273.0
273
127
152
12.7
300
323.9
325
152
178
12.7
350
355.6
377
165
191
12.7
400
406.4
426
178
203
12.7
450
457.2
478
203
229
12.7
500
508.0
529
229
254
12.7
550
559
-
254
 
600
610
630
267
 
650
660
-
267
 
700
711
720
  267 
 
750
762
-
 267 
 
800
813
820
267
 
850
864
-
267
 
900
914
920
267
 
950
965
-
305
 
1000
1016
1020
305
 
1050
1067
-
305
 
1100
1118
1120
343
 
1150
1168
-
343
 
1200
1220
1220
343