5-267-08-048-002

5-267-08-048-002 is a Diamondback DSU/DWU unit built on a double-wall U-tube bundle for liquid-to-liquid transfer with cross-contamination protection. Each tube is vented to atmosphere through a diamond-pattern air gap, so a failure in either wall reports itself outside the unit. Its envelope centers on a 8-inch diameter shell, 48-inch shell length in a 4-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. The series sees regular use in potable water heating and cooling, glycol-to-potable loops, and domestic water systems under double-wall codes.