Various sizes of thick wall flanged and flued head expansion joints were custom designed for heat exchangers in California. Two are 30" in diameter and two are 18" in diameter. They were designed for 1" axial extension and 14 psig at 300°F. All four expansion joints were fabricated from ASTM A-516 Gr. 70 carbon steel material. A dye penetrant exam was conducted prior to shipping.
