5-267-06-060-003

For liquid-to-liquid transfer with cross-contamination protection, the Diamondback DSU/DWU line offers a double-wall U-tube bundle design; this configuration sits within that 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 6-inch shell unit, 60-inch shell length in a 6-pass arrangement. It carries 3/4-inch O.D. tubes. That combination is cataloged as 5-267-06-060-003. Material selection covers cast iron bonnets, steel shell, copper (double wall) tubes, and naval brass tubesheets. The unit is rated for 150 PSI on the shell side, 150 PSI on the tube side, and 375°F maximum temperature. Common applications are potable water heating and cooling, process cooling where mixing cannot be tolerated, and glycol-to-potable loops.