Read MoreThis tied universal expansion joint is designed to carry hot gas up to temperatures of 1022°F and pressure up to 5 PSIG. It has a 66″ inside diameter and is 72″ in overall length. The design movements are 4″ lateral and 4.5″ axial compression. The bellows’ material is Inconel® 825 with carbon steel weld ends. The bellows and pipe longitudinal weld seams were 100% x-rayed prior to a 5 PSIG air test and then dye-penetrant examined after testing.
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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:
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176 PSIG at 500°F |
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0.5 Axial Extension and 1.5 Axial Compression |
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18″ 304 Stainless Steel Expansion Joints with Special Designed and Machined Flange Faces with a Specially Designed Gasket Groove |
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Special Customer Welding Requirements to A.W.S. Standards |
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Critical Spring Rate Requirements |
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Stringent Testing Requirements |
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The Bellows Longitudinal Seams were 100% X-Rayed and Dye-Penetrant Examined. |
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Each Expansion Joint was Helium Leak Tested to a Leak Rate of 1 x 10 ֿ 7 |
