5-272-12-066-001

Built around a double-wall two-pass U-bend bundle, this configuration delivers in-tank heating with steam in the tubes and cross-contamination protection for demanding service. The vented air gap between tube walls gives a visible telltale leak rather than allowing tank contents and steam to mix. Its envelope centers on a 12-inch diameter shell, 66-inch shell length in a 2-pass arrangement. It carries 3/4-inch O.D. tubes. The build specifies cast iron bonnets, steel shell, and copper (double wall) tubes. On the ratings side, expect 150 PSI on the shell side, 125 PSI on the tube side, and 375°F maximum temperature. This build is designated 5-272-12-066-001. Common applications are potable water storage tanks, food-grade process tanks, and institutional water storage.