WU109-25

Configured for liquid-to-liquid heating and cooling, WU109-25 carries the removable U-tube bundle construction that defines the SU/WU range. Pumped boiler water circulates through the baffled shell against the tube-side fluid. The configuration measures 10 inches across the shell, 108-inch shell length, and roughly 113 inches overall in a 2-pass arrangement. That works out to about 131 square feet of heat transfer surface on 3/4-inch O.D. tubes. Material selection covers cast iron or brass bonnets, steel shell, copper tubes, and steel or brass tubesheets. Design ratings run to 150 PSI on the shell side, 125 PSI on the tube side, and 300°F maximum temperature. Typical duty includes hydronic HVAC converters, oil cooling and snow melting, and condensate cooling.