5-272-04-072-001

Configured for in-tank heating with steam in the tubes and cross-contamination protection, this configuration carries the double-wall two-pass U-bend bundle construction that defines the Diamondback tank heater range. 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. That combination is cataloged as 5-272-04-072-001. Standard construction uses cast iron bonnets, steel shell, and copper (double wall) tubes. Operating limits are 150 PSI on the shell side, 150 PSI on the tube side, and 375°F maximum temperature. Typical duty includes potable water storage tanks, domestic hot water storage under double-wall codes, and institutional water storage.