5-268-04-072-002

The HTWU platform pairs a removable U-tube bundle with proven shell-side baffling, and this configuration applies that design to 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 4 inches across the shell, 72-inch shell length, and roughly 76-5/8 inches overall in a 4-pass arrangement. That works out to about 13.9 square feet of heat transfer surface on 3/4-inch O.D. tubes. The build specifies cast iron bonnets, steel shell, copper tubes, and steel tubesheets. The unit is rated for 150 PSI on the shell side, 400 PSI on the tube side, and 375°F maximum temperature. Typical duty includes industrial process heating, high-temperature hot water distribution, and converter duty on HTHW loops. This build is designated 5-268-04-072-002.