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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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These universal metallic expansion joints were custom designed for a pipe line in a bioengergy plant. They range from 20″ to 30″ in diameter, and are designed for 2″ lateral movement with a 1,362 lb/in. spring rate. The expansion joints are fabricated entirely from 304 stainless steel and designed for 250°F and 30 psig. Each unit was 100% dye penetrant examined and air tested prior to shipment.
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| 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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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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| 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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This tied universal expansion joint is 36″ Dia. x 47-3/8″ OAL and is fabricated from carbon steel with stainless steel bellows. It is designed for 1/2″ lateral movement, 3,116 lb./in. lateral spring rate at 200°F and 100 psig. The expansion joint was dye penetrant examined and hydrotested prior to shipment.
| 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 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
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.
| 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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