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U.S. Bellows designed this fabric expansion joint for a gas turbine application. The dimensions for the expansion joint are 153” x 55” x 21”. The fabric belt is made from reinforced neoprene, while the frame and liner are fabricated from A572 Gr.50 carbon steel. The expansion joint is designed for -20°F/+200°F at +/- 100″ water column. A 100% dye-penetrant examination on the welds was preformed prior to shipment.
U.S. Bellows designed this universal expansion joint for a thermal power plant in Oregon. The expansion joint is 136″ in diameter and 36″ in OAL. The bellows are fabricated from stainless steel and the flanges and pipe are carbon steel. It is designed for a lateral movement of 1/2″ at 250°F and 15 psig. The expansion joint was 100% dye-penetrant tested prior to shipment.
U.S. Bellows designed these universal expansion joints with limit rods for a pipeline in Taiwan. The expansion joints are 4″ diameter by 18″ length. The bellows are fabricated from 304 stainless steel and the flanges are 316 stainless steel. They are designed for an operating temperature of 150°F at 150 psig, with a compression of 1.5″ and a lateral deflection of 0.5″. All expansion joints were 100% dye-penetrant tested and hydro-tested prior to shipment.
| Type: | Single Expansion Joint |
| Size: | 16″ diameter |
| Material: | 304L stainless steel |
| Design | 1/2″ axial movement and 265°F at 210 psig |
| Testing: | 100% X-Rayed |
U.S. Bellows, Inc. designed single expansion joints with limit rods for a pipeline application. They are fabricated from 304L stainless steel and have a 16″ diameter. The expansion joints were designed for 1/2″ axial movement and 265°F at 210 psig. All expansion joints were hydro-tested at 315 psig, 100% dye penetrant and the bellows longitudinal seams were x-ray examined prior to shipment
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U.S. Bellows custom designed an inline pressure balanced expansion joint for an ammonia and urea plant in Bolivia. The bellows and liners are fabricated from 304 stainless steel and the assembly from carbon steel. The unit is 46″ diameter and 71-3/8″ in overall length. The expansion joint was designed for 0.8″ axial movement with an operating temperature of 392°F at 114 psig. A 100% dye penetrant test, x-ray, and hydro-test were performed prior to shipment.
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| Type: | Single Expansion Joint |
| Size: | 6″ diameter |
| Material: | 304 Stainless Steel | Carbon Steel |
| Design: | 0.92″ axial movement, 0.14″ lateral movement, 400 psig |
| Testing: | 100% Hydro-tested |
U.S. Bellows designed and manufactured 6″ diameter single expansion joints for a pipeline in Texas. They are fabricated from 304 stainless steel and capable of 0.92″ axial movement, 0.14″ lateral movement and are designed for 400 psig at an operating temperature of 450°F. The assemblies include external covers to protect the bellows from outside damage during plant construction and later during maintenance. All expansion joints were hydro-tested to 600 psig prior to shipping.
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U.S. Bellows designed 8″ diameter tied universal expansion joints for a pipeline in Colorado. The bellows are fabricated from 321 stainless steel and the flanges, pipe, and tie rods are carbon steel. They are designed for a lateral movement of 5″ at 400°F and 200 psig. The lateral force to deflect the units 5″ is 116 lb. The expansion joints are rated for a 7,000 cycle life and were 100% dye-penetrant tested and hydro-tested prior to shipment.
U.S. Bellows custom designed and fabricated this 90″ diameter radius long elbow duct assembly for an ammonia plant in Louisiana. The duct assembly shown here is being sent for painting before it is shipped. The assembly was fabricated from A-516 Gr. 70 carbon steel material and designed for 16 psig and full vacuum at 302°F. A 100% dye penetrant test, and spot x-ray test of all pipe circumferential and long seam welds was performed prior to shipment.
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U.S. Bellows, Inc. designed and fabricated tied universal expansion joints with stainless steel flanges for a nitrogen plant in Arizona. They are 10″ and 14″ diameter and are 140-3/8″ and 168″ OAL. The bellows are fabricated from 321 stainless steel and the pipe is 304L stainless steel. The expansion joints were dye-penetrant examined and hydro-tested to ensure product quality.
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These fabric expansion joints were fabricated from stainless steel pipe and flanges with a three layer fabric belt protected by an insulation pillow. Each joint is 44″ ID x 40″ face-to-face and designed for 3 PSIG at 845°F. The expansion joints are designed for a lateral movement of 1/2″ and an angular rotation of 1.5°. Stainless steel covers were included to protect the fabric expansion element from possible outside damage.
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