5-262-06-084-001

5-262-06-084-001 is a Diamondback DSU/DWU unit built on a double-wall U-tube bundle for steam-to-liquid heating with cross-contamination protection. 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 6 inches across the shell, 84-inch shell length in a 2-pass arrangement. It carries 3/4-inch O.D. tubes. The build specifies cast iron bonnets, steel shell, copper (double wall) tubes, and naval brass tubesheets. On the ratings side, expect 150 PSI on the shell side, 150 PSI on the tube side, and 375°F maximum temperature. Installations range across health care and institutional plumbing, food and beverage process heating, and domestic hot water where codes require double-wall separation.