SU145-4

SU145-4 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 14-inch shell unit, 60-inch shell length, and roughly 68-3/4 inches overall in a 4-pass arrangement. That works out to about 139 square feet of heat transfer surface on 3/4-inch O.D. tubes. Standard construction uses cast iron or brass bonnets, steel shell, copper tubes, and brass tubesheets. Design ratings run to 150 PSI on the shell side, 150 PSI on the tube side, and 375°F maximum temperature. Installations range across swimming pool heating, radiant panel and snow-melt converters, and instantaneous domestic water heating.