Directly buried sleeve compensator
Directly buried sleeve compensator is a kind of compensation device used for directly buried pipeline, mainly used to absorb the axial displacement of pipeline caused by thermal expansion and contraction, with the characteristics of bending resistance and soil pressure resistance.
Overview
The main advantages:
Simple structure, easy installation and maintenance
Large compensation capacity and long service life
Strong bending resistance
Strong corrosion resistance
Wide range of application
Precautions:
Avoid the use of deformation to adjust the installation overrun: in the installation process, it is strictly prohibited to adjust the installation overrun of the pipeline through the deformation of the directly buried expansion joint, so as not to affect its normal function and reduce the service life.
Protect the surface of bellows: in the process of installation, should avoid welding slag splash to the surface of the wave shell to prevent the wave shell from mechanical damage.
Inspection and commissioning: the model, specification and piping configuration of expansion joints should be checked before installation to ensure compliance with design requirements. After installation, the positioning members and fasteners should be removed as soon as possible, and the limit devices should be adjusted according to the design requirements.
Application Fields
Power industry: Directly buried expansion joints are used to absorb the displacement of power cables and pipelines due to temperature changes.
Oil and gas industry: Directly buried expansion joints are used to compensate for the displacement of pipelines due to temperature changes and pressure fluctuations.
Chemical industry: Directly buried expansion joints are used to absorb the pipe displacement caused by temperature, pressure and corrosion during the transportation of chemical media.
Metallurgical industry: Directly buried expansion joints are used to compensate for the thermal expansion and contraction of pipelines in the process of high temperature medium transportation.
Municipal engineering: Directly buried expansion joints are used to absorb the displacement of sewage, rainwater and water supply pipelines due to temperature changes and ground movement.
Environmental protection industry: Directly buried expansion joints are used to compensate for the displacement of pipelines due to temperature changes and medium corrosion.
Design temperature:-20℃-+400℃ | ||||||||||
Path DN | Wavenumber | Pressure ratingMPa | Bellows Effective area cm2 | Maximum oute diameter Size mm | Take over port size mm | Length L(mm) | ||||
0.25 | 0.6 | 1.0 | 1.6 | 2.5 | ||||||
Axial compensation mm/Stiffness N/mm | ||||||||||
50 | 8 | 14/153 | 12/318 | 12/318 | 12/635 | 11/1310 | 37 | 120 | ф57x3.5 | 361 |
16 | 27/76 | 24/158 | 24/158 | 24/318 | 23/655 | 445 | ||||
32 | 52/38 | 48/79 | 48/79 | 48/159 | 46/328 | 621 | ||||
65 | 8 | 19/213 | 18/213 | 18/213 | 18/424 | 15/841 | 55 | 159 | ф73x4 | 377 |
12 | 30/142 | 29/142 | 27/142 | 27/283 | 25/421 | 425 | ||||
24 | 60/71 | 58/107 | 54/107 | 54/142 | 50/211 | 581 | ||||
80 | 8 | 30/179 | 30/179 | 30/358 | 29/358 | 27/650 | 81 | 162 | ф89x4 | 430 |
10 | 54/143 | 37/143 | 371286 | 37/286 | 32/325 | 466 | ||||
20 | 108/72 | 74/72 | 74/143 | 74/143 | 64/163 | 660 | ||||
100 | 6 | 34/138 | 34/277 | 33/417 | 33/417 | 32/817 | 121 | 180 | ф108x4 | 410 |
10 | 56/83 | 56/166 | 56/250 | 54/417 | 50/409 | 492 | ||||
20 | 112/42 | 112/83 | 112/125 | 108/125 | 100/205 | 712 | ||||
125 | 5 | 37/136 | 36/272 | 36/408 | 35/408 | 33/801 | 180 | 221 | ф133x4 | 410 |
9 | 66/76 | 65/151 | 65/227 | 63/227 | 60/401 | 412 | ||||
18 | 132/38 | 130/76 | 130/114 | 126/114 | 120/201 | 711 | ||||
150 | 5 | 49/100 | 49/200 | 48/300 | 45/456 | 44/845 | 257 | 245 | ф159x4.5 | 433 |
8 | 88/63 | 78/125 | 77/188 | 71/286 | 65/423 | 518 | ||||
16 | 159/32 | 156/63 | 154/94 | 142/143 | 130/211 | 756 | ||||
200 | 4 | 58/95 | 56/193 | 56/288 | 56/480 | 55/800 | 479 | 327 | ф219x6 | 475 |
6 | 86/63 | 85/128 | 85/192 | 84/320 | 80/927 | 553 | ||||
12 | 172/32 | 170/64 | 170/96 | 168/160 | 160/200 | 800 | ||||
250 | 4 | 75/170 | 74/343 | 63/588 | 53/930 | 50/1856 | 769 | 404 | ф273x8 | 500 |
6 | 112/113 | 110/228 | 95/392 | 80/620 | 78/927 | 620 | ||||
12 | 220/57 | 220/114 | 190/196 | 160/310 | 156/464 | 984 | ||||
300 | 4 | 73/250 | 72/503 | 65/830 | 57/1253 | 54/2142 | 1105 | 451 | ф325x8 | 584 |
6 | 110/167 | 109/335 | 97/553 | 85/835 | 80/1071 | 713 | ||||
12 | 220/84 | 218/168 | 194/277 | 170/418 | 160/536 | 1116 | ||||
350 | 4 | 79/263 | 78/523 | 72/840 | 64/1265 | 62/2684 | 1307 | 500 | ф377x10 | 614 |
6 | 119/175 | 117/348 | 107/560 | 97/843 | 90/1342 | 759 | ||||
12 | 238/88 | 234/174 | 214/280 | 194/442 | 180/671 | 1216 | ||||
400 | 4 | 83/280 | 73/458 | 70/918 | 65/1373 | 63/3675 | 1611 | 537 | ф426x10 | 625 |
6 | 125/187 | 109/305 | 102/612 | 97/915 | 90/1838 | 771 | ||||
12 | 250/94 | 218/153 | 204/306 | 194/458 | 180/920 | 1225 | ||||
450 | 4 | 98/203 | 96/405 | 82/690 | 69/2305 | 65/4350 | 1972 | 632 | ф478x10 | 620 |
6 | 147/135 | 144/270 | 124/460 | 103/1537 | 90/2175 | 762 | ||||
12 | 294/68 | 288/135 | 248/230 | 206/769 | 180/1087 | 1200 | ||||
500 | 4 | 102/212 | 100/423 | 84/728 | 70/2452 | 63/4256 | 2445 | 699 | ф529x10 | 624 |
6 | 153/142 | 149/282 | 126/485 | 105/1635 | 90/2128 | 766 | ||||
12 | 306/71 | 298/141 | 252/243 | 210/818 | 180/1064 | 1216 | ||||
600 | 4 | 123/265 | 121/530 | 86/1468 | 99/1740 | 95/2842 | 3534 | 806 | ф630x10 | 676 |
6 | 185/177 | 181/353 | 148/978 | 140/1160 | 120/1420 | 848 | ||||
12 | 370/89 | 362/177 | 358/489 | 280/580 | 240/710 | 1382 | ||||
700 | 4 | 128/287 | 126/573 | 87/1625 | 85/2972 | 84/4100 | 4717 | 915 | ф720x10 | 708 |
6 | 192/192 | 188/382 | 168/1083 | 131/1982 | 120/2050 | 882 | ||||
12 | 384/96 | 376/191 | 336/542 | 262/991 | 240/11025 | 1422 | ||||
800 | 4 | 128/310 | 126/620 | 84/1778 | 85/3183 | 84/6234 | 5822 | 1005 | ф820x10 | 724 |
8 | 256/155 | 252/310 | 168/889 | 170/1591 | 168/3117 | 1071 | ||||
12 | 384/103 | 378/207 | 252/596 | 241/1061 | 236/1558 | 1538 | ||||
900 | 4 | 151/378 | 149/758 | 118/1329 | 117/2575 | 7620 | 1137 | ф920x10 | 792 | |
8 | 302/189 | 298/379 | 236/664 | 234/1288 | 1211 | |||||
12 | 453/126 | 447/253 | 351/443 | 354/825 | 1650 | |||||
1000 | 4 | 140/423 | 140/845 | 115/2270 | 90/5038 | 9043 | 1227 | ф1020x10 | 800 | |
8 | 280/212 | 280/423 | 230/1385 | 180/2519 | 1200 | |||||
12 | 420/141 | 420/282 | 345/923 | 170/1679 | 1616 | |||||
