5-261-12-120-003

For steam-to-liquid heating, the SU/WU line offers a removable U-tube bundle design; this configuration sits within that range. Steam condenses in the single-pass shell while the heated fluid travels the tubes. Its envelope centers on a 12-inch diameter shell, 120-inch shell length, and roughly 125-1/2 inches overall in a 6-pass arrangement. That works out to about 174 square feet of heat transfer surface on 3/4-inch O.D. tubes. The build specifies cast iron 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. This build is designated 5-261-12-120-003. Typical duty includes swimming pool heating, instantaneous domestic water heating, and building comfort heating.