5-267-10-120-002

A double-wall U-tube bundle gives 5-267-10-120-002 the thermal and mechanical margin expected of Diamondback DSU/DWU equipment in 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. Dimensionally it is a 10-inch shell unit, 120-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. The series sees regular use in domestic water systems under double-wall codes, potable water heating and cooling, and glycol-to-potable loops.