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.
May 15, 2015