5-272-04-084-001

A double-wall two-pass U-bend bundle gives this configuration the thermal and mechanical margin expected of Diamondback tank heater equipment in in-tank heating with steam in the tubes and cross-contamination protection. The vented air gap between tube walls gives a visible telltale leak rather than allowing tank contents and steam to mix. The configuration measures 4 inches across the shell in a 2-pass arrangement. It carries 3/4-inch O.D. tubes. Standard construction uses cast iron bonnets, steel shell, and copper (double wall) tubes. The unit is rated for 150 PSI on the shell side, 150 PSI on the tube side, and 375°F maximum temperature. This build is designated 5-272-04-084-001. Typical duty includes potable water storage tanks, institutional water storage, and food-grade process tanks.