HTWU64-23

Built around a removable U-tube bundle, this configuration delivers high-temperature water heating for demanding service. High-temperature water flows through the tube side, so the heads rather than the shell set the pressure limit. Physically, the unit runs a 6-inch shell, 48-inch shell length, and roughly 52-1/4 inches overall in a 2-pass arrangement. That works out to about 17.39 square feet of heat transfer surface on 3/4-inch O.D. tubes. That combination is cataloged as HTWU64-23. Material selection covers cast iron bonnets, steel shell, copper tubes, and steel tubesheets. On the ratings side, expect 150 PSI on the shell side, 400 PSI on the tube side, and 375°F maximum temperature. Typical duty includes industrial process heating, converter duty on HTHW loops, and campus and district energy systems.