5-268-12-108-002

For high-temperature water heating, the HTWU line offers a removable U-tube bundle design; 5-268-12-108-002 sits within that range. High-temperature water flows through the tube side, so the heads rather than the shell set the pressure limit. The configuration measures 12 inches across the shell, 108-inch shell length, and roughly 114 inches overall in a 4-pass arrangement. That works out to about 180 square feet of heat transfer surface on 3/4-inch O.D. tubes. 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. Common applications are converter duty on HTHW loops, industrial process heating, and campus and district energy systems.