5-262-10-036-002

this configuration 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. Its envelope centers on a 10-inch diameter shell, 36-inch shell length in a 4-pass arrangement. It carries 3/4-inch O.D. tubes. Standard construction uses cast iron bonnets, steel shell, copper (double wall) tubes, and naval brass tubesheets. Design ratings run to 150 PSI on the shell side, 125 PSI on the tube side, and 375°F maximum temperature. This build is designated 5-262-10-036-002. Common applications are domestic hot water where codes require double-wall separation, health care and institutional plumbing, and potable water heating.