5-272-08-072-001

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. Dimensionally it is a 8-inch shell unit in a 2-pass arrangement. It carries 3/4-inch O.D. tubes. As furnished, materials include cast iron bonnets, steel shell, and copper (double wall) tubes. On the ratings side, expect 150 PSI on the shell side, 150 PSI on the tube side, and 375°F maximum temperature. This build is designated 5-272-08-072-001. Installations range across domestic hot water storage under double-wall codes, institutional water storage, and food-grade process tanks.