U.S. Bellows designed 8″ diameter tied universal expansion joints for a pipeline in Colorado. The bellows are fabricated from 321 stainless steel and the flanges, pipe, and tie rods are carbon steel. They are designed for a lateral movement of 5″ at 400°F and 200 psig. The lateral force to deflect the units 5″ is 116 lb. The expansion joints are rated for a 7,000 cycle life and were 100% dye-penetrant tested and hydro-tested prior to shipment.
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90″ Dia. Duct Work Designed for an Ammonia Plant in Louisiana
U.S. Bellows custom designed and fabricated this 90″ diameter radius long elbow duct assembly for an ammonia plant in Louisiana. The duct assembly shown here is being sent for painting before it is shipped. The assembly was fabricated from A-516 Gr. 70 carbon steel material and designed for 16 psig and full vacuum at 302°F. A 100% dye penetrant test, and spot x-ray test of all pipe circumferential and long seam welds was performed prior to shipment.
Read MoreTied Universal Expansion Joints Designed for a Nitrogen Plant
U.S. Bellows, Inc. designed and fabricated tied universal expansion joints with stainless steel flanges for a nitrogen plant in Arizona. They are 10″ and 14″ diameter and are 140-3/8″ and 168″ OAL. The bellows are fabricated from 321 stainless steel and the pipe is 304L stainless steel. The expansion joints were dye-penetrant examined and hydro-tested to ensure product quality.
Read More44″ Dia. Fabric Expansion Joints Designed for a Chemical Plant
These fabric expansion joints were fabricated from stainless steel pipe and flanges with a three layer fabric belt protected by an insulation pillow. Each joint is 44″ ID x 40″ face-to-face and designed for 3 PSIG at 845°F. The expansion joints are designed for a lateral movement of 1/2″ and an angular rotation of 1.5°. Stainless steel covers were included to protect the fabric expansion element from possible outside damage.
11 Foot Long Rectangular Fabric Expansion Joints Designed for a Gas Turbine
U.S. Bellows, Inc. fabricated rectangular fabric expansion joints for a gas turbine.They are 136″ L x 54″ W 12″ face-to-face. The frame and liner are fabricated from stainless steel and the fabric belt is 1-ply PTFE. The expansion joints are designed for 600°F at +/- 100″ water column. A 100% dye-penetrant examination was preformed prior to shipment.
20″ Dia. Inline Pressure Balanced Expansion Joints Designed for a Pipeline in Texas
U.S. Bellows custom-designed inline pressure balanced expansion joints for a pipeline in Texas. The bellows are fabricated from 316 stainless steel and the flanges and liners from carbon steel. The units have a 20″ diameter and are 30″ in overall length. The expansion joints were designed for 0.17″ compression with an operating temperature of 150°F at 285 psig. A dye penetrant test and pressure test at 300 PSIG was performed prior to shipment.
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12″ Dia. Tied Universal Expansion Joint Designed for a Power Plant
U.S. Bellows custom designed this tied universal expansion joint for a power plant. The expansion joint is 12″ Dia. x 34 1/2″ OAL. The bellows are fabricated from Inconel 625 LCF and the tie rod ring attachments, pipe and tie rods are 316 stainless steel. It is designed for an axial movement of 1/2″, a lateral movement of 2 1/4″ at 1250°F and 120 psig. The bellows longitudinal seam was 100% x-rayed, all welds were dye penetrant-examined and the unit hydrotested prior to shipment.
84″ Dia. Refractory Lined Universal Expansion Joint Designed for an FCC Unit
U.S. Bellows, Inc. fabricated this 84″ diameter universal expansion joint with refractory lining for an FCC unit in Texas. The unit is designed with 321 stainless steel bellows and carbon steel flanges. It is lined with a 4″ thick refractory lining and measures 96″ in overall length. The bellows long seams were 100% x-rayed and dye-penetrant tested
20″ Dia. Double Gimbal Expansion Joint Refurbished for an Oil Refinery
U.S. Bellows refurbished this double gimbal expansion joint for an oil refinery in Baytown, Texas. The bellows were replaced with Inconel 625 and the duct, elbow, cover, and liner are carbon steel. This unit has a diameter of 20″ and an overall length of 108″. The expansion joint was designed for 4″ lateral movement at 450°F and 180 psig. Prior to shipment, the unit was 100% dye penetrant tested, PMI examined, and hydrotested.
32″ Dia. Externally Pressurized Expansion Joint Designed for an Oil Refinery
US Bellows custom-designed this single externally pressurized expansion joint for an oil refinery in Saudi Arabia. The bellows are fabricated completely from 316 stainless steel. The expansion joint is 32″ in diameter and 61-1/4″ in length. It is designed for 8″ axial movement and 150 psig at 176°F, with a spring rate of 1096 lb./in. The unit had the stainless steel alloy material PMI examined. It was also dyed penetrant examined and hydro tested prior to shipment.
Read More8′-1/2″ Long Rectangular Metallic Expansion Joint Designed with Mitered Corners for a Gas Turbine
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.
60″ Dia. Universal Expansion Joint Designed for a Chemical Company
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
Universal Expansion Joint Refurbished for a Manufacturing Facility in Tennessee
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.
Externally Pressurized Expansion Joints Radiographic Tested
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.
Read More30″ Dia. Tied Universal Expansion Joints for an Oil Refinery in Dubai
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.
Read More32″ Dia. Elbow Pressure Balanced Expansion Joint Designed for a Manufacturing Facility in Tenessee
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.
Read More24″ Dia. Elbow Pressure Balanced Expansion Joint Designed for a Chemical Plant in Missouri
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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.
Duct Work Custom Designed with Turning Vanes
U.S. Bellows custom designed duct work with turning vanes in the elbows for a dry tower leading to a main gas blower inlet. The duct work assemblies are fabricated from 316L stainless steel and designed for temperatures up to 150°F. The total assembly is 66″ diameter and 749-5/8″ long. The units were x-rayed, dye penetrant tested and hydro-tested prior to shipment.
Read More42″ Dia. Hinged Universal Expansion Joint Designed with Pantographic Linkage
Read MoreThis 42″ dia. hinged universal expansion joint was designed with pantographic linkage flue gas application in a Columbian refinery. The redundant two-ply testable bellows are fabricated from Inconel 625 LCF and the remainder of the assembly was fabricated with refractory lined carbon steel. It is designed for an axial movement of 1.1″ at 1,000°F and 50 psig. All welds were 100% dye penetrant examined, the bellows longitudinal seam and pipe seams were 100% X-ray examined. The complete assembly was pneumatically tested to 50 psig due to the internal insulation. All the pressure bearing components such as the hinge plates, pantrographic linkage, gimbal ring and hinge support rings were designed and engineered per latest EJMA, ASME B31.3 codes
48″ Dia. Tied Universal Expansion Joint Designed for a Facility in California
U.S. Bellows, Inc. custom designed this tied universal expansion joint for a facility in California. The bellows are fabricated from 316 stainless steel. The assembly measures 48″ in diameter and 90″ in length. The units are designed 3″ axial, 2″ lateral and 450°F at 150 psig. A dye penetrant examination and hydro-test was conducted prior to shipment.
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