膨胀节由一个波纹管和两个端接管构成。它通过波纹管的柔性管的柔性变形来吸引管线轴向位移（也有少量横向、角向位移），端接管或直接与管道接管焊接，或焊上法兰再与管道法兰连接。膨胀节上的小拉杆主要是运输过程中的刚性支承或作为产品预变形调整用，它不是承力件。该类膨胀节结构简单、价格低，因而凡是在管线上可能的地方应优先予以考虑。
|
通径 |
波纹管 有效面积 c㎡ |
波数 |
压力等级MPa |
总长Lmm 连接型式 |
最大外径 B mm |
|||||
|
0.25 |
0.6 |
1.0 |
1.6 |
2.5 |
接管J |
法兰F |
||||
|
50 |
48 |
4 |
15/108 |
8/245 |
7.5/388 |
6.5/825 |
5.5/716 |
220 |
236 |
157 |
|
8 |
34/45 |
16/122 |
15/194 |
13/413 |
11/358 |
280 |
296 |
|||
|
65 |
70 |
4 |
16/125 |
10.5/243 |
9/422 |
7/873 |
6.5/874 |
220 |
236 |
186 |
|
8 |
32/65 |
21/121 |
18/211 |
14/437 |
13/437 |
280 |
296 |
|||
|
80 |
95 |
4 |
17/150 |
12.5/398 |
11/658 |
8.5/1058 |
9K/1368 |
220 |
236 |
220 |
|
8 |
34/75 |
25/199 |
22/329 |
17/529 |
18K/684 |
280 |
296 |
|||
|
100 |
153 |
4 |
19/230 |
15/420 |
12/698 |
9.2/1323 |
9.5K/1587 |
284 |
300 |
238 |
|
8 |
38/115 |
30/210 |
24/349 |
18/661 |
19K/793 |
364 |
380 |
|||
|
125 |
205 |
4 |
19/272 |
15/508 |
12/854 |
9/1616 |
9.5K/1940 |
284 |
300 |
275 |
|
8 |
38/136 |
30/254 |
24/427 |
18/808 |
19K/970 |
364 |
380 |
|||
|
150 |
297 |
4 |
20/315 |
14/595 |
11/1009 |
22/504 |
9.2K/2294 |
284 |
300 |
289 |
|
8 |
40/158 |
28/298 |
22/504 |
17/1493 |
18K/1147 |
364 |
380 |
|||
|
200 |
527 |
4 |
37/212 |
24/651 |
17/1493 |
34/746 |
14K/3202 |
380 |
400 |
389 |
|
8 |
74/106 |
47/326 |
34/746 |
16/1850 |
28K/1601 |
500 |
520 |
|||
|
250 |
769 |
4 |
36/252 |
23/800 |
16/1850 |
33/925 |
14K/3969 |
380 |
400 |
495 |
|
8 |
72/126 |
46/400 |
33/925 |
21/1536 |
27K/1985 |
500 |
520 |
|||
|
300 |
1064 |
4 |
46/220 |
30/672 |
21/1536 |
42/768 |
17K/3494 |
426 |
450 |
80 |
|
8 |
92/110 |
59/336 |
42/768 |
21/1682 |
34K/1747 |
570 |
594 |
|||
|
350 |
1257 |
4 |
46/238 |
29/732 |
21/1682 |
42/841 |
17K/3824 |
426 |
450 |
577 |
|
8 |
92/119 |
58/336 |
42/841 |
20/1917 |
34K/1912 |
570 |
594 |
|||
|
400 |
1605 |
4 |
46/262 |
28/831 |
20/1917 |
16/3690 |
16K/4359 |
426 |
450 |
626 |
|
8 |
92/131 |
57/415 |
40/958 |
32/1845 |
32K/2180 |
570 |
594 |
|||
|
450 |
1987 |
4 |
45/290 |
28/928 |
20/2148 |
16/4145 |
16K/4886 |
426 |
450 |
678 |
|
8 |
90/145 |
55/464 |
40/1074 |
32/2072 |
32K/2443 |
570 |
594 |
|||
|
500 |
2411 |
4 |
44/320 |
27/1026 |
20/2380 |
14/4600 |
16K/5413 |
426 |
450 |
729 |
|
8 |
88/160 |
54/464 |
40/1190 |
32/2300 |
32K/2707 |
570 |
594 |
|||
|
600 |
3452 |
4 |
70/270 |
48/730 |
36/1561 |
27/2908 |
23K/5114 |
576 |
600 |
860 |
|
8 |
140/135 |
096/365 |
71/781 |
54/1454 |
46K/2557 |
816 |
840 |
|||
|
700 |
4742 |
4 |
73/290 |
48/815 |
40K/1463 |
31K/2656 |
|
576 |
600 |
980 |
|
6 |
110/193 |
71/543 |
60K/975 |
46K/1771 |
|
696 |
720
|
|||