5-261-12-108-004

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. Dimensionally it is a 12-inch shell unit, 108-inch shell length, and roughly 113-1/2 inches overall in a 2-pass arrangement. That works out to about 191 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. Operating limits are 150 PSI on the shell side, 150 PSI on the tube side, and N/A maximum temperature. This build is designated 5-261-12-108-004. The series sees regular use in swimming pool heating, radiant panel and snow-melt converters, and building comfort heating.