5-261-12-108-003

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. Dimensionally it is a 12-inch shell unit, 108-inch shell length, and roughly 113-1/2 inches overall in a 6-pass arrangement. That works out to about 156 square feet of heat transfer surface on 3/4-inch O.D. tubes. That combination is cataloged as 5-261-12-108-003. The build specifies cast iron bonnets, steel shell, copper tubes, and brass tubesheets. The unit is rated for 150 PSI on the shell side, 150 PSI on the tube side, and 375°F maximum temperature. The series sees regular use in radiant panel and snow-melt converters, instantaneous domestic water heating, and swimming pool heating.