Tag: rectangular expansion joint

This rectangular expansion joint was custom fabricated by U.S. Bellows for a refinery in Texas. The expansion joint is 107″ in height, 71″ in width, and 64″ in length. The bellows and cover were fabricated from 304 stainless steel and the rest of the components from carbon steel. It is designed for 250°F at 15 psig and 0.125″ of lateral deflection. The expansion joint was soap & air, 100% dye-penetant, and pneumatic tested prior to shipment.

U.S. Bellows designed and fabricated this rectangular metallic expansion joint for a boiler exhaust application. The expansion joint is 45½” x 75½”. The unit’s bellows, liner, and angle flanges are 304 stainless steel and the cover is carbon steel. The expansion joint is designed for an operating temperature of 500°F at 15 psig. A 100% dye penetrant examination and air and soap leak test was performed prior to shipment.

This rectangular metallic expansion joint is fabricated with 321 stainless steel bellows and Cor-ten flanges. The inside of this unit is lined with both vibra cast and abrasion resistance refractory. The dimensions are 65″ x 81″ x 41-1/2″ overall length and the assembly weighs 3,900 lb. All welds are 100% dye penetrant examined and the design conditions are 1400°F with 5 PSIG.

U.S. Bellows, Inc. fabricated two metallic expansion joints on an expedited schedule. The expansion joints were fabricated from COR-TEN ASTM 588 carbon steel and are designed for 1.2 PSI at temperatures up to 748°F. The expansion joints were designed for an axial compression of 1.5″ and a lateral resultant movement of 1.84″. The entire expansion joint was shipped to the job site in one piece. This avoided having to splice weld the expansion joint into one piece, which saved the customer countless assembly man hours in the field.

These rectangular metal bellows are fabricated entirely from ASTM A-240 type 304 stainless steel. The larger bellows measures 240″ x 80″. The smaller bellows measures 157″ x 65″. The design conditions were 1 PSIG at 1,000°F. Both metal bellows are designed with three convolutions with round corners. The metal bellows welds were 100% dye-penetrant examined and soap and air tested prior to shipment. These bellows are designed to be installed at the ductwork connection to a large steam boiler.

This rectangular metallic expansion joint measures 22″ x 84″ x 11″ face-to-face and is fabricated from 316 stainless steel bellows and carbon steel flanges. This expansion joint is designed to absorb axial compression in a hot air duct system to a fan inlet. The bellows have three convolutions with mitered corners. The expansion joint was 100% dye-penetrant examined and soap and air tested prior to being shipped to a power plant.

U.S. Bellows, Inc. refurbished a rectangular metal expansion joint on an emergency basis for a local chemical plant. Upon arrival, the expansion joint was acid washed and dye-penetrant examined for any cracks in the metal. The expansion joint bellows were then repaired, retested and sent back to the customer in a matter of two days. The expansion joint measures 21″ x 26″ x 36-3/8″. The bellows are fabricated from Inconel® 625 LCF material. The rest of the assembly is fabricated from Inconel® 600 material. The design temperature is 660°F and the design pressure is 20 PSIG. The expansion joint was soap-air bubble tested and dye-penetrant examined before being returned.

The expansion joint weights more than 1,700 lbs. and is capable of +/- 1/4 axial movement and +/- 1/8 lateral movement. It is designed to operate under-designed pressures ranging from full vacuum to 15 psig at 250 degrees. The bellows and liner of the expansion joint are made of 304 stainless steel with a carbon steel flange and duct. To ensure quality, the product was 100% dye-penetrant tested prior to shipping.

U.S. Bellows, Inc., the expansion joint division of Piping Technology & Products, Inc., designed and fabricated a 71 x 143 rectangular expansion joint for an oil refinery in India. The expansion joint was fabricated from SS 316 L, designed at 18 psig at 417°F. It is equipped with a liner and rounded corner bellows design. EJMA Standards and B31.3 code were used in the design and fabrication of this joint.

U.S. Bellows, Inc. manufactures a stainless steel rectangular expansion joint, 28” x 66”, for an exhaust system at a chemical plant in South Carolina. This joint is equipped with a liner, tie rods system and mitered corner bellows design. The expansion joint was designed for 15 psig at 600°F and leak tested. A 100% dye-penetrant test was also performed on all the welds.