Axial External Pressure Expansion Joint
Axial external pressure type corrugated compensator is a device used for pipeline compensation, which mainly absorbs axial displacement and has the advantages of large compensation amount, good heat preservation performance and residual medium can be excluded.
Overview
Axial external pressure type corrugated compensator is a device used for pipeline compensation, which mainly absorbs axial displacement and has the advantages of large compensation amount, good heat preservation performance and residual medium can be excluded. Its working principle is to realize the compensation of thermal deformation of pipeline through the compression of corrugation, different from other types of corrugated compensator (such as axial internal pressure corrugated compensator), axial external pressure corrugated compensator relies on the compression of the corrugation to realize the compensation, there is no problem of instability of the corrugated column, the compensating capacity is large and safe and reliable.
The main advantages of axial external pressure type corrugated compensator include:
Large compensation capacity: axial outward pressure type corrugated compensator mainly absorbs axial displacement, has large compensation capacity, and can handle large displacement.
Good thermal insulation performance: due to the bellows is subject to external pressure, closed and good bending resistance, can effectively maintain the thermal insulation performance of the pipeline.
High compressive strength: the bellows is subject to external forces, high compressive strength, not easy to destabilize and destroy, safe and reliable.
Corrosion resistance: the bellows is made of SUS316L material, which has good corrosion resistance and bending fatigue strength.
Long service life: the internal setup of two-way guide tube, the pipe impurities will not enter the bellows, easy to install, long service life.
Applicable scenes and installation precautions:
Applicable Scenario: Mainly used in steam pipelines with design pressure and design temperature within a certain range to compensate for axial displacement caused by thermal expansion.
Installation precautions: The amount of compensation should be correctly calculated during installation, and the direction of the guide sleeve should be noted to ensure that the flow direction is correct when it is in a parallel relative position.
Path DN | Length mm | Wavenumber n | Pressure rating MPa |
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0.6 | 1.0 | 1.6 | |||||
Axial compensation mm Stiffness N/mm | |||||||
50 | 432 | 10 | 41/231 | 39/255 | 37/286 | 81 | ф270 |
654 | 20 | 82/116 | 78/126 | 74/143 | |||
65 | 488 | 10 | 41/231 | 39/255 | 37/286 | 82 | ф290 |
756 | 20 | 82/116 | 78/126 | 74/143 | |||
80 | 506 | 9 | 56/116 | 53/232 | 50/278 | 121 | ф308 |
709 | 18 | 112/98 | 106/116 | 100/139 | |||
100 | 532 | 8 | 61/167 | 57/218 | 54/256 | 180 | ф338 |
789 | 16 | 122/84 | 114/109 | 108/128 | |||
125 | 616 | 8 | 82/278 | 78/301 | 75/320 | 257 | ф 368 |
966 | 16 | 164/129 | 156/151 | 150/160 | |||
150 | 950 | 8 | 124/125 | 112/154 | 89/330 | 535 | ф450 |
1540 | 16 | 250/56 | 210/87 | 160/113 | |||
200 | 950 | 8 | 130/155 | 100/126 | 70/409 | 779 | ф505 |
1550 | 16 | 250/75 | 200/113 | 160/205 | |||
250 | 1080 | 8 | 161/111 | 130/162 | 105/378 | 1075 | ф566 |
1800 | 16 | 320/51 | 260/94 | 201/119 | |||
300 | 1090 | 8 | 161/138 | 130/194 | 100/338 | 1269 | ф600 |
1820 | 16 | 320/54 | 260/100 | 200/168 | |||
350 | 1090 | 8 | 165/165 | 132/221 | 99/438 | 1619 | ф676 |
1820 | 16 | 320/71 | 250/121 | 200/218 | |||
400 | 1110 | 8 | 162/164 | 132/290 | 101/468 | 2008 | ф710 |
1840 | 16 | 310/76 | 251/145 | 190/268 | |||
450 | 1110 | 8 | 152/131 | 124/339 | 100/532 | 2428 | ф768 |
1840 | 16 | 301/81 | 251/170 | 190/245 | |||
500 | 1475 | 6 | 190/180 | 150/515 | 150/765 | 3473 | ф975 |
2450 | 12 | 371/90 | 300/175 | 300/298 | |||
600 | 1540 | 6 | 195/231 | 150/754 | 140/756 | 4766 | ф1090 |
2540 | 12 | 391/121 | 290/364 | 280/480 | |||
700 | 1540 | 6 | 200/222 | 155/601 | 150/832 | 6068 | ф1190 |
2540 | 12 | 400/112 | 300/400 | 290/478 | |||
800 | 1540 | 6 | 201/200 | 164/497 | 150/897 | 7528 | ф1290 |
2540 | 12 | 400/135 | 321/451 | 299/583 | |||
900 | 1605 | 6 | 220/206 | 230/635 | 220/765 | 9328 | ф1460 |
2685 | 12 | 430/154 | 460/337 | 442/388 | |||
1000 | 1605 | 6 | 220/356 | 230/615 | 220/763 | 11118 | ф1560 |
2685 | 12 | 430/268 | 460/303 | 442/418 | |||
1100 | 1605 | 6 | 210/273 | 230/654 | 221/754 | 13066 | ф1660 |
2685 | 12 | 428/187 | 460/347 | 442/414 | |||
1200 | 1605 | 6 | 210/308 | 230/757 | 221/832 | 15170 | ф1760 |
2685 | 12 | 420/104 | 460/488 | 443/601 | |||
1300 | 1605 | 6 | 220/356 | 230/864 | 221/864 | 17432 | ф1860 |
2685 | 12 | 410/132 | 450/432 | 435/626 | |||
1400 | 1605 | 6 | 212/398 | 231/645 | 226/889 | 19851 | ф1960 |
2685 | 12 | 410/198 | 450/466 | 430/665 | |||
1500 | 1605 | 6 | 201/321 | 230/978 | 220/984 | 22427 | ф2060 |
2685 | 12 | 400/187 | 449/422 | 432/665 |