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Featured Product Archives

60″ Dia. Elbow Pressure Balanced Expansion Joint Refurbished in 3 Weeks
September 3, 2013

60" Dia. Elbow Pressure Balanced Expansion Joint Refurbished in 3 Weeks for a Power Generation Plant

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.

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Duct Work and Expansion Joint Assembly Custom Designed by U.S. Bellows for an Oil Refinery in California
August 11, 2013

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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.

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20′ Rectangular Fabric Expansion Joint Custom Designed for a Plant in Louisiana
June 29, 2013

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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.

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62″ Fabric, 42″ Hinged and 42″ Tied Universal Expansion Joints and Duct Work Designed for an Acid Plant
June 13, 2013
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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.

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59″ Dia. Single Hinged Expansion Joint Refurbished in Two Weeks
June 3, 2013

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Within 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.

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64″ Dia. Elbow Pressure Balanced Expansion Joint Designed for an Exhaust Duct
May 12, 2013

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.

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Single Expansion Joints Designed for Gas Service in Peru
April 27, 2013

56" Dia. Single Expansion Joints Designed for a Gas Service in Peru
Single 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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54″ Dia. Refurbished Custom Crossover Expansion Joint
March 7, 2013

54" Dia. Refurbished Custom Crossover Expansion Joint

US Bellows refurbished a 54″ dia. custom crossover expansion joint for a power plant in Kansas. The flow end and balancing end bellows were replaced. The pressure balanced expansion joint was designed for 1″ axial movement at 700°F and 150 PSIG. The bellows longitudinal weld seams were 100% x-rayed and the assembly was hydro-tested at 180 psig prior to shipment. The refurbishment was completed in three weeks to meet the customer’s outage requirements.

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