5-262-10-084-002

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. The configuration measures 10 inches across the shell, 84-inch shell length in a 4-pass arrangement. It carries 3/4-inch O.D. tubes. Material selection covers cast iron bonnets, steel shell, copper (double wall) tubes, and naval brass tubesheets. On the ratings side, expect 150 PSI on the shell side, 125 PSI on the tube side, and 375°F maximum temperature. This build is designated 5-262-10-084-002. Typical duty includes potable water heating, domestic hot water where codes require double-wall separation, and health care and institutional plumbing.