5-268-12-120-002

A removable U-tube bundle gives this configuration the thermal and mechanical margin expected of HTWU equipment in high-temperature water heating. High-temperature water flows through the tube side, so the heads rather than the shell set the pressure limit. Physically, the unit runs a 12-inch shell, 120-inch shell length, and roughly 126 inches overall in a 4-pass arrangement. That works out to about 200 square feet of heat transfer surface on 3/4-inch O.D. tubes. As furnished, materials include 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. Installations range across high-temperature hot water distribution, industrial process heating, and campus and district energy systems. This build is designated 5-268-12-120-002.