5-266-04-084-004

For liquid-to-liquid heating and cooling, the SU/WU line offers a removable U-tube bundle design; 5-266-04-084-004 sits within that range. Pumped boiler water circulates through the baffled shell against the tube-side fluid. Dimensionally it is a 4-inch shell unit, 84-inch shell length, and roughly 88-7/8 inches overall in a 2-pass arrangement. That works out to about 16.3 square feet of heat transfer surface on 3/4-inch O.D. tubes. As furnished, materials include cast brass bonnets, steel shell, copper tubes, and brass tubesheets. On the ratings side, expect 150 PSI on the shell side, 150 PSI on the tube side, and 300°F maximum temperature. The series sees regular use in oil cooling and snow melting, hydronic HVAC converters, and pool and storage-tower heating.