5-277-10-108-001

For in-tank heating with boiler water in the tubes and cross-contamination protection, the Diamondback tank heater line offers a double-wall two-pass U-bend bundle design; 5-277-10-108-001 sits within that range. The vented air gap between tube walls gives a visible telltale leak rather than allowing boiler water and tank contents to mix. Dimensionally it is a 10-inch shell unit, 108-inch shell length in a 2-pass arrangement. It carries 3/4-inch O.D. tubes. Material selection covers cast iron bonnets, steel shell, and copper (double wall) tubes. The unit is rated for 150 PSI on the shell side, 125 PSI on the tube side, and 375°F maximum temperature. Typical duty includes institutional and health care water storage, domestic water storage under double-wall codes, and glycol-fed storage heating.