Weld-End External Pressure Expansion Joints
For greater diameters than Ø250 mm, please consult our Technical Department.
Standard connection material is St37 Carbon Steel. According to the requirement, it can be possible to produce stainless steel materials such as AISI 304, AISI 316, AISI 321 or others.
Bellow Materials:AISI304, 316, 316L, 321, 309, 310
Weld-End Materials:st37-2, AISI304, 316
| Nominal Diameter | Movement (L-mm) | d | s | D | Effective Area (cm2) | Operation Pressure | ||||
| DN | In | 30 | 60 | 90 | 120 | |||||
| 25 | 1" | 275 | 395 | 520 | - | 33,7 | 2,6 | 88,9 | 54 | 40 bar |
| 32 | 1 1⁄4" | 285 | 405 | 530 | - | 42,4 | 3,2 | 88,9 | 54 | 40 bar |
| 40 | 1 1⁄2" | 295 | 415 | 535 | - | 48,3 | 3,2 | 88,9 | 54 | 40 bar |
| 50 | 2" | 300 | 420 | 555 | 710 | 60,3 | 3,6 | 114,3 | 89 | 40 bar |
| 65 | 2 1⁄2" | 315 | 430 | 560 | 715 | 76,1 | 3,6 | 114,3 | 91 | 40 bar |
| 80 | 3" | 315 | 435 | 585 | 725 | 88,9 | 4 | 139,7 | 141 | 40 bar |
| 100 | 4" | 320 | 450 | 585 | 750 | 114,3 | 4,5 | 165 | 196 | 40 bar |
| 125 | 5" | 335 | 465 | 595 | 765 | 139,7 | 5 | 219,1 | 272 | 40 bar |
| 150 | 6" | 345 | 475 | 615 | 790 | 165 | 5 | 219,1 | 346 | 40 bar |
| 200 | 8" | 395 | 520 | 685 | 860 | 219,1 | 4,5 | 323,9 | 572 | 40 bar |
| 250 | 10" | 420 | 585 | 760 | 950 | 273 | 5,6 | 355,6 | 829 | 40 bar |
