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Featured Product Archives

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

US 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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Pressure Balanced Tee Expansion Joint Designed for a Boiler Feed Pump Turbine Exhaust
January 20, 2013

Pressure Balanced Tee Expansion Joint Designed for a Boiler Feed Pump Turbine Exhaust

Type:  Single Expansion Joint
Size:  96″ Dia. x 288″ OAL
Material:  Carbon steel with 304 stainless steel
Design:  2″ axial movement at 315°F and 15 PSIG
Testing:  100% Pneumatic-tested

This pressure balanced tee expansion joint was custom-designed for a boiler feed pump turbine exhaust in a power plant. It is 96″ Dia. x 288″ OAL and fabricated from carbon steel with 304 stainless steel bellows, turning vanes and liners. It is designed for 2″ axial movement at 315°F and 15 PSIG. The expansion joint was 100% dye-penetrant tested, and a chemical cleaning of the interior surfaces was performed to remove any oil and grease. US Bellows also performed a pneumatic test at 23 PSIG.

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42″ Dia. Single Tied Expansion Joints Designed for a Solar Electric Generation Facility
November 26, 2012

42" Dia. Single Tied Expansion Joints Designed for a Solar Electric Generation Facility

Type:  Single Expansion Joint
Size:  40″ and 42″ diameter
Material:  304 Stainless Steel | Carbon Steel
Design  lateral movement of 1/2″, and 15 PSIG at 250°F
Testing:  100% Dye-penetrant | Hydro-tested

These single tied expansion joints are 40″ and 42″ diameter and were designed for a solar electric generation facility. The bellows and flow liner are 304 stainless steel. The stub ends are fabricated from carbon steel. The expansion joints were designed for a lateral movement of 1/2″, and 15 PSIG at 250°F. They were 100% dye penetrant examined and hydro-tested prior to shipping to California.

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60″ Dia. Pressure Balanced Elbow Expansion Joint for a Power Generation Plant
November 5, 2012

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60″ Dia. Pressure Balanced Elbow Expansion Joint for a Power Generation Plan
This pressure balanced elbow expansion joint is 60″ diameter and 240″ overall length and was custom designed for a power generation plant in South Carolina. It was fabricated from carbon steel with 304 stainless steel bellows. The expansion joint was designed for an axial compression of 1″, lateral of 1″, and 100 PSIG at 100°F

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Fabric Expansion Joints Custom Designed for an Offshore Oil Extraction and Natural Gas Project
October 20, 2012

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These fabric expansion joints were custom designed for offshore oil extraction and natural gas project. They are 105″ dia. x 24″ O.A.L. 309 stainless steel was used for the duct, 310 for the liners, 316 for the covers, 321 for the studs, 309 for the flanges. The fabric belt was a three-layer belt with an inner layer of glass cloth, a layer of Kaowool, and an outside layer of reinforced PTFE. The expansion joints were designed for 1 psig at a temperature of 1100°F. They are designed for 4″ axial compression, a 1″ extension, and a 0.5″ lateral offset. All welds were 100% dye-penetrant examined prior to shipment.

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Single Expansion Joint for an Offshore Deep Drilling Platform
October 9, 2012

Single Expansion Joint for an Offshore Deep Drilling Platform

Type:  Single Expansion Joint
Size:  16″ diameter, 21-1/2″ OAL
Material:  321 stainless steel
Design  450°F at 8 psig
Testing:  100% Dye-penetrant | Air and Soap-tested

These single expansion joint are refurbished with 321 stainless steel bellows for an offshore deepwater drilling platform. They are 16″ diameter, 21-1/2″ OAL, and designed for 450°F at 8 psig. The expansion joints were dye penetrant examined, and an air and soap bubble test was performed prior to shipment.

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