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This order required custom engineering to design and manufacture these expansion joints due to their critical service condition requirements. PT&P manufactured and tested these expansion joints to the customer specifications, EJMA Standards, and US Bellows Quality Standards.
Design Condition:
| 176 PSIG at 500°F | |
| 0.5 Axial Extension and 1.5 Axial Compression | |
| 18″ 304 Stainless Steel Expansion Joints with Special Designed and Machined Flange Faces with a Specially Designed Gasket Groove | |
| Special Customer Welding Requirements to A.W.S. Standards | |
| Critical Spring Rate Requirements | |
| Stringent Testing Requirements | |
| The Bellows Longitudinal Seams were 100% X-Rayed and Dye-Penetrant Examined. | |
| Each Expansion Joint was Helium Leak Tested to a Leak Rate of 1 x 10 ֿ 7 |


