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Featured Product Archives

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, U.S. 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

U.S. 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

U.S. 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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84″ & 14″ Dia. Single Expansion Joints Custom Designed for a Pipe Line in an Utility Plant
February 16, 2013

84" & 14" Dia. Single Expansion Joints Custom Designed for a Pipe Line in an Utility Plant
84" & 14" Dia. Single Expansion Joints Custom Designed for a Pipe Line in an Utility Plant

Type:  Single Expansion Joint
Size:  14″ dia. and 84″ Diameter
Material:  304 stainless steel
Design spring rate of 2,530 lb/in., 1″ axial movement at 300°F and 37 psig
Testing:  100% Dye-penetrant | Hydro-tested

U.S. Bellows custom designed 14″ dia. and 84″ dia. single expansion joints for a pipeline in a utility plant in Colorado. The bellows are 304 stainless steel and carbon steel was used for the flanges and tie rods. The assemblies were designed for a spring rate of 2,530 lb/in., 1″ axial movement at 300°F and 37 psig. The assemblies were dye penetrant examined and air tested with a delivery of 12 weeks.

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102″ Dia. Single Hinged Expansion Joint and Duct Work Assembly and Two 92″ Single Expansion Joints
February 4, 2013
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U.S. Bellows designed a 102″ dia. single hinged expansion joint and duct work assembly, along with two 92″ single expansion joints for a coal gasification facility in Mississippi. Both the assembly and expansion joints were fabricated from carbon steel with 304 stainless steel bellows, and designed for 3.6° angular movement at 825°F and 3 psig. The expansion joints were dye penetrant examined, 100% x-rayed and soap and air tested prior to shipment.

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