SU186-2

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. Its envelope centers on a 18-inch diameter 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. That combination is cataloged as SU186-2. The build specifies cast iron or brass 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, swimming pool heating, and building comfort heating.