U.S. Bellows, Inc. designed and fabricated this expansion joint exhaust assembly for an oil refinery in Texas. This expansion joint is offset for an offshore platform and weighs approximately 8,000 lbs. It has a design pressure and temperature of 1 PSIG and 1000 degrees, respectively. The air test was conducted to detect any leaks.
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These expansion joints were designed at 170 PSIG and 450 degrees F. to absorb lateral movements and tested per B31.3. They were made with Inconel® 625LCF bellows and A105 300 lb. RFSO flanges. The entire assembly was hydro-tested at 255 PSIG and held under pressure for four hours. In order to detect any leaks, each expansion joint and its welds were subjected to the dye penetrant-test and the X-ray test, each of which were 100%, prior to and following forming.
U.S. Bellows, Inc., the expansion joint division of Piping Technology & Products, Inc., designed and fabricated 14″ diameter, tied universal expansion joints for a steam application at a power plant in Illinois. The expansion joints were designed at 350 psig, 780° F and constructed from Inconel® 625 bellows, A105 300# RFSO flanges, A106 GR. B spool, and SA193 B7 tie rods. The expansion joints were hydro-tested at 525 PSIG.
U.S. Bellows, Inc., the expansion joint division of Piping Technology & Products, Inc., specially designed and fabricated a 54″ diameter tied, universal expansion joint for NASA Space Center. The expansion joints were designed at full vacuum and 450° F and constructed with 304 SS bellows, liner and A516 Gr. 70 spool, weld ends and carbon steel tie rods. The bellows’ attachment welds were 100% dye-penetrant tested.
U.S. Bellows, Inc., the expansion joint division of Piping Technology & Products, Inc., fabricated 28-inch and 32-inch O.D Tied universal expansion joints for an oil refinery in China. The expansion joints were fabricated from 321 SS bellows, A105, 150#, RFSO. EJMA Standards and B31.3 code were used in the design and fabrication of these joints.
U.S. Bellows, Inc., the expansion joint division of Piping Technology & Products, Inc., specially designed and fabricated a 44-inch, O.D Universal, refractory lined expansion joint for a chemical plant in Venezuela.>The expansion joint was designed for 100 psig at 1,000° F and fabricated with 321 SS two-ply tested bellows, A-387 GR11 weld ends, 14 Ga. 304 SS, Hexmesh anchoring system and Resco 17 EMC refractory. The expansion joint was also designed and fabricated per B31.3 and EJMA Standards.
The photograph above shows a 72-inch universal pressure balanced expansion joint designed for a chemical plant in Pasadena, Texas. The expansion joint is designed for 30 psig at 200°F and full vacuum. All materials in the “wetted surface” are TP-316/316L stainless steel. Design movements are 3-inch axial compression and 5 ¾ -inch lateral offset. The assembly is approximately 24-feet long and 14,150 lbs.
U.S. Bellows, Inc., the expansion joint division of Piping Technology & Products, Inc., designed and manufactured 16-inch and 30-inch elbow tied universal expansion joints, for a power station in Florida. These expansion joints, which are used to transport hot steam, are designed at 150 psig and 350° F. The bellows material is fabricated from Inco 625 and elbows and spool from carbon steel.
This picture shows a 47.25″ I.D. Universal Expansion Joint with SB-443 (Inco. 625) round corners bellows, and SA516-70 flanges for ethylene plant in Saudi Arabia. This expansion joint was custom designed and fabricated by U.S Bellows, Inc for an ethylene plant in Saudi Arabia.
U.S Bellows, Inc. manufactures 96, 3″ NPS tied universal bellows for a power plant located in Saudi Arabia. The bellows’ element is a unique design containing integral equalizing rings between the corrugations that provide excellent pressure resistance, as well as, anti-squirm resistance. The tear drop shape of the rings add little resistance to movement and cycle life is not compromised. Pressure design is based on 252 psi at 689° F with a lateral movement of 1.0″.