5-262-12-084-001

Built around a double-wall U-tube bundle, this configuration delivers steam-to-liquid heating with cross-contamination protection for demanding service. An atmospheric air gap between the inner and outer tube vents any breach to the outside, giving a visible telltale leak instead of silent mixing. Dimensionally it is a 12-inch shell unit, 84-inch shell length in a 2-pass arrangement. It carries 3/4-inch O.D. tubes. That combination is cataloged as 5-262-12-084-001. Material selection covers cast iron bonnets, steel shell, copper (double wall) tubes, and naval brass tubesheets. Operating limits are 150 PSI on the shell side, 125 PSI on the tube side, and 375°F maximum temperature. Typical duty includes potable water heating, health care and institutional plumbing, and domestic hot water where codes require double-wall separation.