5-268-12-072-001

this configuration is a HTWU unit built on a removable U-tube bundle for 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 12 inches across the shell, 72-inch shell length, and roughly 78 inches overall in a 2-pass arrangement. That works out to about 126 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. Operating limits are 150 PSI on the shell side, 400 PSI on the tube side, and 375°F maximum temperature. This build is designated 5-268-12-072-001. Common applications are campus and district energy systems, industrial process heating, and high-temperature hot water distribution.