5-261-20-108-005

The SU/WU platform pairs a removable U-tube bundle with proven shell-side baffling, and 5-261-20-108-005 applies that design to steam-to-liquid heating. Steam condenses in the single-pass shell while the heated fluid travels the tubes. The configuration measures 20 inches across the shell, 108-inch shell length, and roughly 121-3/4 inches overall in a 4-pass arrangement. That works out to about 565 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. Typical duty includes swimming pool heating, instantaneous domestic water heating, and radiant panel and snow-melt converters.