Resources
U.S. Bellows custom designed single expansion joints for an oil refinery in China. They were fabricated with Incoloy 800H bellows and ASTMA 240TP 304H stainless steel weld ends. The expansion joints have a diameter of 6″ with an overall length of 11″. The assemblies were designed for a spring rate of 362 lb./in., 1″ axial movement at 1112°F and 5 psig. All expansion joints were dye penetrant examined and hydro-tested prior to shipment.
U.S. Bellows designed and fabricated a rectangular metallic expansion joint with mitered corners for a gas turbine in New York. This unit’s dimensions are 37″ in width by 102″ in length by 16″ face-to-face. The bellows, frame ends and internal liner are fabricated from 300 series stainless steel. The expansion joint is designed for +/- 100″ water column and for a temperature range of -20°F to 800°F. It is designed for an axial movement of 1/2″ with a lateral offset of 1/2″. A dye penetrant examination and air and soap leak test was performed prior to shipment.
U.S. Bellows, Inc. designed and fabricated a universal expansion joint for chemical company. The expansion joint is 60″ in diameter and 72″ in overall length. This unit is designed for 3.25″ lateral movement with a 3,620 lb./in. axial spring rate, a 131″ water column with a temperature of 220°F. An x-ray test and dye-penetrant examination were conducted on the bellows longitudinal seam weld as well as an air, soap, and bubble test prior to shipment
This universal expansion joint was refurbished for a manufacturing facility in Tennessee. The bellows were fabricated from 304 stainless steel. The expansion joint was designed for an operating temperature of 475°F and a pressure of 127 psig. The unit is 16″ diameter by 123″ long and it is capable of 3/4″ lateral movement. A dye penetrant exam and hydro-test was conducted prior to shipment.
These externally pressurized expansion joints were custom designed for 8″ axial movement and 150 psig at 176°F, with a spring rate of 2,152 lb./in. They are 16″ in diameter and 60-1/4″ face-to-face. The bellows are fabricated from 304 stainless steel, and the rest of the expansion joint is fabricated from carbon steel. Each unit was hydro-tested, radiographic tested, and dye penetrant tested prior to shipment.
U.S. Bellows custom designed tied universal expansion joints for an oil refinery in Dubai. The expansion joints are fabricated from 304 stainless steel and range in diameter from 6″ to 30″. They are designed for 5/8″ lateral movement and 51 psi at 230°F. Each unit was dye penetrant examined and hydro-tested prior to shipment.
U.S. Bellows, Inc. custom designed this 32″ diameter elbow pressure balanced expansion joint for a manufacturing facility in Midway, Tennessee. The bellows, cover and liner are all fabricated from stainless steel. The unit is 10′-4″ long and designed for 350°F. The expansion joint is designed for 1/8″ axial and 1/4″ lateral movement. A dye penetrant exam and hydro-test at 53 psig was preformed prior to shipment.
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U.S. Bellows designed and manufactured this 24″ diameter by 140-3/16″ OAL custom elbow pressure balanced expansion joint for a chemical plant in Missouri. The pipe and weld ends are fabricated from 347 stainless steel. The liner, tie rod lugs and end plates are fabricated from 304-H stainless steel. The bellows are Incoloy 800H. This expansion joint is designed for 2.6″ axial compression and 170 psig at 1200°F. The bellows longitudinal seams were 100% x-rayed, and the entire unit was dye penetrant examined and hydro-tested at 255 psig prior to shipment.
The Reynolds Number is a dimensionless number. It is defined as the ratio of the dynamic forces of mass flow to the shear stress due to viscosity.
