Nominal pipe size DN	Outside Diameter at Bevel		Length		Limiting Wall Thickness for length E
Nominal pipe size DN	A 系列 Series A	B 系列 Series B	E	E1	Limiting Wall Thickness for length E
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