无约束波纹补偿器也叫直埋式波纹补偿器。是因以往的轴向型补偿器对使用有较多约束条件得名的。无约束补偿器*消除了以往轴向型补偿器对导向支架间距的L1≤4D，L≤14D和L3的要求，实现了管架间距“无约束"的最后目标。无约束补偿器不仅具有柱状稳定性，还具有自导向能力，*消除 4D、14D、L3的约束，克服安装误差，体积小，安全可靠的特点，还可以消除以往轴向型补偿器易发生的扭弯和失稳等常见病，并对管道保温也带来了很大的方便。
公称通径mm
| 波数 | 轴向补偿量mm/轴向刚度N/mm | 有效面积cm2 | 接管尺寸 | 产品长度mm | ||||
| 0.6Mpa | 1.0Mpa | 1.6Mpa | 2.5Mpa | |||||
| 100 | 6 | 34/277 | 33/417 | 33/417 | 32/817 | 121 | ф108×4 | 410 |
| 10 | 56/166 | 56/250 | 54/250 | 50/409 | 492 | |||
| 20 | 112/83 | 112/125 | 108/125 | 100/205 | 712 | |||
| 125 | 5 | 36/272 | 36/408 | 35/408 | 33/801 | 180 | ф133×4 | 410 |
| 9 | 65/151 | 65/227 | 63/227 | 60/401 | 412 | |||
| 18 | 130/76 | 130/114 | 126/114 | 120/201 | 711 | |||
| 150 | 5 | 49/200 | 48/300 | 45/456 | 44/845 | 257 | ф159×4.5 | 433 |
| 8 | 78/125 | 77/188 | 71/286 | 65/423 | 518 | |||
| 16 | 156/63 | 154/94 | 142/143 | 130/211 | 756 | |||
| 200 | 4 | 56/193 | 56/288 | 56/480 | 55/800 | 479 | ф219×6 | 475 |
| 6 | 85/128 | 85/192 | 84/320 | 80/927 | 533 | |||
| 12 | 170/64 | 170/96 | 168/160 | 160/200 | 800 | |||
| 250 | 4 | 74/343 | 63/588 | 53/930 | 50/1856 | 769 | ф273×8 | 500 |
| 6 | 110/228 | 95/392 | 80/620 | 78/927 | 620 | |||
| 12 | 220/114 | 190/196 | 160/310 | 156/464 | 984 | |||
| 300 | 4 | 72/503 | 65/830 | 57/1253 | 54/2142 | 1105 | ф325×8 | 584 |
| 6 | 109/335 | 97/553 | 85/835 | 80/1071 | 713 | |||
| 12 | 218/168 | 194/277 | 170/418 | 160/536 | 1116 | |||
| 350 | 4 | 78/523 | 72/840 | 64/1265 | 62/2684 | 1307 | ф377×10 | 614 |
| 6 | 117/348 | 107/560 | 97/843 | 90/1342 | 759 | |||
| 12 | 234/174 | 241/218 | 194/442 | 180/671 | 1216 | |||
| 400 | 4 | 73/458 | 70/918 | 65/1373 | 63/3675 | 1611 | ф426×10 | 625 |
| 6 | 109/305 | 102/612 | 97/915 | 90/1838 | 771 | |||
| 12 | 218/153 | 204/306 | 194/458 | 180/920 | 1225 | |||
| 450 | 4 | 96/405 | 82/690 | 69/2305 | 65/4350 | 1972 | ф478×10 | 620 |
| 6 | 144/270 | 124/460 | 103/1537 | 90/2175 | 762 | |||
| 12 | 288/135 | 248/230 | 206/769 | 180/1087 | 1200 | |||
| 500 | 4 | 100/423 | 84/728 | 70/2452 | 65/4256 | 2445 | ф529×10 | 624 |
| 6 | 149/282 | 126/485 | 105/1635 | 90/2128 | 766 | |||
| 12 | 298/141 | 252/243 | 210/818 | 180/1064 | 1216 | |||
| 600 | 4 | 121/530 | 86/1468 | 99/1740 | 95/2842 | 3534 | ф630×10 | 676 |
| 6 | 181/353 | 148/978 | 140/1160 | 120/1420 | 848 | |||
| 12 | 362/177 | 358/489 | 280/580 | 240/710 | 1382 | |||
| 700 | 4 | 126/573 | 87/1625 | 85/2972 | 84/4100 | 4717 | ф720×10 | 708 |
| 6 | 188/382 | 168/1083 | 131/1982 | 120/2050 | 882 | |||
| 12 | 376/191 | 336/542 | 262/991 | 240/11025 | 1422 | |||
| 800 | 4 | 126/620 | 84/1778 | 85/3183 | 84/6234 | 5822 | ф820×10 | 724 |
| 8 | 252/310 | 168/889 | 170/1591 | 168/3117 | 1071 | |||
| 12 | 378/207 | 252/596 | 241/1061 | 236/1558 | 1538 | |||
| 900 | 4 | 149/758 | 118/1329 | 117/2575 | 7620 | ф920×10 | 792 | |
| 8 | 298/379 | 236/664 | 234/1288 | 1211 | ||||
| 12 | 447/253 | 351/443 | 354/825 | 1650 | ||||
| 1000 | 4 | 140/845 | 115/2770 | 90/5038 | 9043 | ф1020×10 | 800 | |
| 8 | 280/423 | 230/1385 | 180/2519 | 1200 | ||||
| 12 | 420/282 | 345/923 | 270/1679 | 1616 | ||||
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