注：管帽的形状应为椭圆形，并应符合相应国家标准或行业标准中给定的形状要求、�br style="box-sizing: border-box; margin: 0px; padding: 0px; border: none; outline: none;"/>Note: Shape of pipe cap shall be oval,and be in accordance with the requirements on shapes specified in corresponding national
standards or industrial standards

公称尺寸 DN	坡口处外徃�br style="box-sizing: border-box; margin: 0px; padding: 0px; border: none; outline: none;"/>D		长度a E	长度E旵�br style="box-sizing: border-box; margin: 0px; padding: 0px; border: none; outline: none;"/>极限壁厚	长度b E1
	Ⅰ系刖�/td>	Ⅱ系刖�/td>
15	21.3	18	25	4.57	25
20	26.9	25	25	3.81	25
25	33.7	32	38	4.57	38
32	42.4	38	38	4.83	38
40	48.3	45	38	5.08	38
50	60.3	57	38	5.59	44
65	76.1�?3（�/td>	76	38	7.11	51
80	88.9	89	51	7.62	64
90	101.6	-	64	8.13	76
100	114.3	108	64	8.64	76
125	139.7	133	76	9.65	89
150	168.3	159	89	10.92	102
200	219.1	219	102	12.7	127
250	273	273	127	12.7	152
300	323.9	325	152	12.7	178
350	355.6	377	165	12.7	191
400	406.4	426	178	12.7	203
450	457	478	203	12.7	229
500	508	530	229	12.7	254
550	559	-	254	12.7	254
600	610	630	267	12.7	305
650	660	-	267	-	-
700	711	720	267	-	-
750	762	-	267	-	-
800	813	820	267	-	-