US 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.
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Duct Work Custom Designed with Turning Vanes
US Bellows custom-designed ductwork 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
US Bellows 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.
Read More42″ Dia. Single Expansion Joint Designed for a Gas Turbine System
| Type: | Single Expansion Joint |
| Size: | 42″ diameter and the overall length is 16″ |
| Material: | 316 L stainless steel |
| Design | 140°F at 1 psig with 2″ of axial lateral movement |
| Testing: | 100% Dye-penetrant | Pneumatic |
A single expansion joint was custom designed for a gas turbine system in Mexico. The bellows, flanges, and limit rods are all fabricated from 316 L stainless steel. The bellows are 42″ diameter and the overall length is 16″. The expansion joints were designed for 140°F at 1 psig with 2″ of axial lateral movement. A dye penetrant exam and pneumatic test were completed prior to shipment
Read More42″ Dia. Universal Expansion Joint Designed with Pantographic Linkage and Slotted Hinges for a Flue Gas Application
This 42″ dia., 118″ long universal expansion joint was designed with pantographic linkage and slotted hinges for 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 1.3″ 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.
81 Universal Expansion Joints Designed for California Refinery
US Bellows custom-designed eighty-one universal expansion joints for an oil refinery in California. The bellows are fabricated from 304 stainless steel, and the pipe and flanges are carbon steel. The units range from 1″ to 8″ in diameter and are designed for a spring rate of 20 lb./in. The expansion joints are designed for 140°F at 25 PSIG and are capable of 1″ axial compression. Each unit was hydro-tested prior to shipment.
Read More36″ and 18″ Diameter Universal Expansion Joints Designed for an Oil Refinery in the Philippines
US Bellows custom designed universal expansion joints for an oil refinery in the Philippines. The bellows and liner are fabricated from 304 stainless steel and the cover, tie rods, flanges and pipe spool are carbon steel. The sizes are 18″ dia. x 60.5″ long, 28″ dia. x 80.75″ and 36″ dia. x 40″ long. The units are designed with movement indicators and for 50 psig at 655°F. They are capable of 0.675″ compression, 0.375″ lateral and 1″ angular. The bellows and pipes were 100% x-rayed, PMI examined and hydro-tested
78″ Dia. Single Expansion Joints Designed for an Internal Reactor
| Type: | Single Expansion Joint |
| Size: | 59-7/15″ to 78-8/8″ and are 41-5/16″ long Diameter |
| Material: | 800H, A-240 type 304H stainless steel weld ends |
| Design | lateral movement of 0.25″, axial movement of 2.64″ and 15 psig at 1231°F |
| Testing: | 100% X-Rayed | Dye-penetrant |
These single expansion joints are custom designed for an internal reactor in a propylene process unit. They are fabricated with Incoloy 800H bellows and A-240 type 304H stainless steel weld ends. The expansion joints range in diameter from 59-7/15″ to 78-8/8″ and are 41-5/16″ long. They were designed for a lateral movement of 0.25″, axial movement of 2.64″ and 15 psig at 1231°F. PMI, x-ray and dye penetration tests were performed prior to shipment.
Read MoreTied Universal Expansion Joints Designed for a Vapor Line Used for Rail Car Loading
US Bellows custom-designed and fabricated tied universal expansion joints for a vapor line used for railcar loading at the Houston ship channel. The expansion joints are 12″ dia. x 40″ O.A.L. The bellows are fabricated from 304 stainless steel and the flanges and limit rods are carbon steel. They are designed for 100°F at 1 PSIG and capable of 5″ axial movement. Each unit was 100% dye penetrant tested and soap and air tested prior to shipment.
Read MoreSingle Hinged Expansion Joints Custom Designed for a Chemical Plant
Read MoreTwenty-four single hinged expansion joint were custom designed for a chemical plant. Eight are 16″ dia., four are 12″ dia., twelve are 6″ dia., and they range in length from 14″ to 16″. The bellows are fabricated from 304 stainless steel and the rest is carbon steel. The 16″ dia. joints are designed for 2° angular movement at 300°F and 150 PSIG. The 12″ dia. joints are designed for 1 deg. Angular movement at 300°F and 400 PSIG. The 6″ dia. joints are designed for 1° angular movement at 300°F and 650 PSIG. All expansion joints were dye penetrant examined and hydro-tested prior to shipment
24″ Dia. Universal Expansion Joint Designed for a Refinery in Europe
US Bellows designed and manufactured this universal expansion joint in accordance with ASME section VIII for an oil and gas refinery in Europe. A U2A- form was furnished as part of the units’ documentation. The expansion joint has a 24″ diameter and 103″ overall length. The bellows, liners and covers are fabricated from 316 stainless steel, and the flanges, tie-rods and pipe are carbon steel. The unit is designed for an operating temperature of 181°F at 101 psig and 1″ axial movement with a 3″ lateral offset. The bellows and pipe longitudinal weld seams were x-rayed, dye-penetrant and hydro- tested prior to shipment
Read MoreFabric Expansion Joints Designed for an Exhaust Duct in a Gas Turbine Facility
These fabric expansion joints were custom designed for an exhaust duct in a gas turbine facility in Europe. The 81″ x 18″ x 16″ face to face expansion joints have an integral stainless steel frame and liner with a reinforced red silicone fabric belt. The assemblies were manufactured for a 400°F operating temperature at +/-100 inches of water column pressure. The expansion joints were 100% dye-penetrant tested before being shipped to the customer.
60″ Dia. Elbow Pressure Balanced Expansion Joint Refurbished in 3 Weeks
This 60″ dia. x 20″ OAL elbow pressure balanced expansion joint was refurbished by US Bellows in 3 weeks for a power generation plant in Wisconsin. The bellows are fabricated from Inconel 625 and the duct, elbow, cover and liner of carbon steel. The expansion joint was designed for 1″ axial movement at 715°F and 185 PSIG. The bellows longitudinal seams were 100% x-rayed prior to forming. After replacing the bellows, the expansion joint was dye penetrant tested and hydro tested at 185 PSIG.
Read MoreDuct Work and Expansion Joint Assembly Custom Designed by U.S. Bellows for an Oil Refinery in California
This duct work and expansion joint assembly was custom designed by US Bellows for an oil refinery in California. The project consists of 36″ x 48″ 304 stainless steel oval shaped duct work with a thick wall expansion joint and 30″ x 16″ carbon steel round shaped duct work. It is designed for 900°F at 13.2 psig, and the entire assembly was dye penetrant examined and 100% x-rayed prior to shipment.
20′ Rectangular Fabric Expansion Joint Custom Designed for a Plant in Louisiana
U.S. Bellows designed a 20″ x 13″ rectangular fabric expansion joint for a plant in Louisiana. This unit was custom designed to improve the current design by eliminating the need for insulation. The fabric belt consists of five layers and the frame is fabricated from 321 stainless steel. The expansion joint is designed for 1-7/8″ lateral movement at 1350°F and ± 10 psig and was 100% dye-penetrant tested prior to shipment.
62″ Fabric, 42″ Hinged and 42″ Tied Universal Expansion Joints and Duct Work Designed for an Acid Plant
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U.S. Bellows custom designed two 42″ tied universal expansion joints, a 42″ hinged expansion joint and a 62″fabric expansion joint in ductwork for an acid plant in Louisiana. The assemblies had flanged and flued head bellows fabricated from 304H stainless steel. The rest of the assemblies were made from carbon steel with operating temperatures of 700°F at 10 psig. The expansion joints were dye penetrant and x-ray tested prior to shipment.
Read More59″ Dia. Single Hinged Expansion Joint Refurbished in Two Weeks
Read MoreWithin a two week deadline, US Bellows refurbished a 59-1/4″ diameter single hinged expansion joint for a refinery in Louisiana. The expansion joint is 119-3/4″ in overall length and designed for .82″ angular rotation at 1380°F and 35 PSIG. The bellows are fabricated from Inconel 625 LCF, and the entire assembly is 304H stainless steel. Before shipment, the bellows were x-rayed and the assembly was 100% dye penetrant and air tested to 52 PSIG.
64″ Dia. Elbow Pressure Balanced Expansion Joint Designed for an Exhaust Duct
US Bellows designed and manufactured a 64” diameter custom elbow pressure balanced expansion joint for an exhaust duct in a power plant in Alberta, Canada. It is 386” in overall length and is fabricated from carbon steel with 321 stainless steel bellows. This expansion joint is designed for 1-1/8” axial movement, ½” lateral movement at 482°F and 174 PSIG. Tests performed on the unit include 100% dye penetrant, x-ray, and ultrasonic on pressure-bearing welds. The unit was also hydrotested at 291 PSIG prior to shipment.
Read MoreSingle Expansion Joints Designed for Gas Service in Peru
| Type: | Single Expansion Joint |
| Size: | 3″ to 56″Diameter |
| Material: | 321 stainless steel, 316L flanges, carbon steel covers |
| Design | 194°F at 22 PSIG |
| Testing: | 100% Dye-penetrant | Soap, and Air |
These single expansion joints are 20″ in overall length and range in diameter from 3″ to 56″. They are composed of 321 stainless steel bellows, 316L flanges, and angles, and include carbon steel covers. The expansion joints were designed for 194°F at 22 PSIG and were dye penetrant examined and soap and air tested prior to shipping to Peru.
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