5-261-18-072-004

Built around a removable U-tube bundle, this configuration delivers steam-to-liquid heating for demanding service. Steam condenses in the single-pass shell while the heated fluid travels the tubes. Physically, the unit runs a 18-inch shell, 72-inch shell length, and roughly 84-1/2 inches overall in a 2-pass arrangement. That works out to about 290 square feet of heat transfer surface on 3/4-inch O.D. tubes. The build specifies cast brass bonnets, steel shell, copper tubes, and brass tubesheets. On the ratings side, expect 150 PSI on the shell side, 150 PSI on the tube side, and N/A maximum temperature. Typical duty includes radiant panel and snow-melt converters, instantaneous domestic water heating, and building comfort heating. This build is designated 5-261-18-072-004.