5-267-08-048-003

Configured for liquid-to-liquid transfer with cross-contamination protection, this configuration carries the double-wall U-tube bundle construction that defines the Diamondback DSU/DWU range. Each tube is vented to atmosphere through a diamond-pattern air gap, so a failure in either wall reports itself outside the unit. Dimensionally it is a 8-inch shell unit, 48-inch shell length in a 6-pass arrangement. It carries 3/4-inch O.D. tubes. That combination is cataloged as 5-267-08-048-003. 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, 150 PSI on the tube side, and 375°F maximum temperature. The series sees regular use in glycol-to-potable loops, domestic water systems under double-wall codes, and potable water heating and cooling.