SU226-6

The SU/WU platform pairs a removable U-tube bundle with proven shell-side baffling, and this configuration applies that design to steam-to-liquid heating. Steam condenses in the single-pass shell while the heated fluid travels the tubes. Dimensionally it is a 22-inch shell unit, 72-inch shell length, and roughly 98-7/8 inches overall in a 6-pass arrangement. That works out to about 438 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 steel tubesheets. Design ratings run to 150 PSI on the shell side, 150 PSI on the tube side, and 375°F maximum temperature. The series sees regular use in swimming pool heating, radiant panel and snow-melt converters, and instantaneous domestic water heating. This build is designated SU226-6.