July 2017 | US Bellows

Type:	Double Gimbal Expansion Joints
Size:	30″ Diameter \| 198″ Length
Material:	2-Ply Bellows: Inconel 625 LCF \| Pipes: 316 H SS \| Covers & Liners: CS
Design:	5° Angular Rotation \| 1260°F \| 180 psig
Testing:	100% Dye-Penetrant \| PMI Examined \| Hydro-tested

U.S. Bellows custom designed and fabricated double gimbal expansion joints for a chemical plant in Arkansas. The assemblies are designed with 2-ply bellows which were fabricated from Inconel 625 LCF. The pipes are 316 H stainless steel and the covers and liners are carbon steel. The units are 30″ in diameter and have an overall length of 198″. The expansion joints were designed for 5° angular rotation at 1260°F and 180 psig. Prior to shipment, the units were 100% dye penetrant tested, PMI examined, and hydro-tested.

Type:	Neoprene & Fabric Expansion Joints
Size:	59″ Dia./7″ face-to-face & 136″ x 54″ x 12″.
Material:	Fabric Reinforced Neoprene/Carbon Steel & PTFE Fabric Belt/304 Stainless Steel
Design:	-20°F-600°F with +/- 100″ water column, 1/2″ of Axial & Lateral
Testing:	100% Dye-Penetrant

These neoprene and fabric expansion joints were designed by U.S. Bellows for an exhaust duct application at a gas turbine facility in Hungary. The rounds are 59″ in diameter and 7″ face-to-face, and the rectangular is 136″ x 54″ x 12″. The rounds are fabricated from A572 Gr50 carbon steel with fabric reinforced neoprene belts and the rectangular has a PTFE fabric belt with 304 stainless steel framework. They are designed for an operating temperature from -20°F-600°F with +/- 100″ water column and 1/2″ of axial compression and lateral deflection. A dye-penetrant examination was conducted on the unit prior to shipment.

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Double Gimbal Expansion Joints with 2-Ply Bellows for a Chemical Plant

Neoprene and Fabric Expansion Joints for an Exhaust Duct Application in Hungary