5-261-12-120-004

this configuration is a SU/WU unit built on a removable U-tube bundle for steam-to-liquid heating. Steam condenses in the single-pass shell while the heated fluid travels the tubes. Physically, the unit runs a 12-inch shell, 120-inch shell length, and roughly 125-1/2 inches overall in a 2-pass arrangement. That works out to about 212 square feet of heat transfer surface on 3/4-inch O.D. tubes. Standard construction uses 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. Installations range across instantaneous domestic water heating, building comfort heating, and swimming pool heating. This build is designated 5-261-12-120-004.