5-266-10-048-003

The SU/WU platform pairs a removable U-tube bundle with proven shell-side baffling, and 5-266-10-048-003 applies that design to liquid-to-liquid heating and cooling. Pumped boiler water circulates through the baffled shell against the tube-side fluid. Dimensionally it is a 10-inch shell unit, 48-inch shell length, and roughly 53 inches overall in a 6-pass arrangement. That works out to about 45 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, N/A on the tube side, and 300°F maximum temperature. Common applications are pool and storage-tower heating, oil cooling and snow melting, and hydronic HVAC converters.