5-268-10-072-002

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. The configuration measures 10 inches across the shell, 72-inch shell length, and roughly 77-3/8 inches overall in a 4-pass arrangement. That works out to about 82 square feet of heat transfer surface on 3/4-inch O.D. tubes. That combination is cataloged as 5-268-10-072-002. As furnished, materials include cast iron bonnets, steel shell, copper tubes, and steel tubesheets. Operating limits are 150 PSI on the shell side, 400 PSI on the tube side, and 375°F maximum temperature.