
Common Applications
- Auto Industry
- Chemical
- Commercial Buildings
- Education
- Food & Beverage
- General Industry
- Healthcare
- High Rise Buildings
- Petroleum/Oil
- Pulp and Paper
Series 400 Scotch Marine Boiler
The Hurst 400 Series three-pass wetback scotch marine boiler is an ideal choice for all commercial and industrial applications when engineering mechanical systems using the latest HVACR technologies. The Hurst 400 Series boiler provides fuel efficiencies that exceed most four-pass designs. Having no large refractory rear door, these boilers allow one technician easy access to all tubes. The boiler's front doors can be opened without removing any burner components or controls.
Capacities range from 15 to 2,000 HP and 1,004 to 50,213 MBTU/HR. Available for 15 PSI Steam and 30 PSI Water (60 PSI Water Optional).
The Water-Back Advantage
Dry back boilers are subject to deteriorating rear refractory, leaking baffles, leaking door seals, and often found with a heat-stressed rear tube sheet. Fragile refractory baffling and door seals will require continuous monitoring, maintenance, and replacement, costing thousands of dollars in materials and specialized labor costs over the life of the boiler. In addition, broken baffles and leaking seals will short-circuit the boiler's gas flow, causing high stack temperatures and lowering efficiency until repairs can be made.
Standard Steam Trim
- Operating & limit pressure control
- Modulating pressure control (when applicable)
- Water column with gauge glass probe type combination low water cut-off & pump control
- Probe type auxiliary low water cut-off with manual reset
- Water column drain valve
- Safety relief valve(s) per ASME Code steam gauge
- Stack thermometer
Standard Water Trim
- Operating & limit temperature control
- Modulating temperature control (when applicable)
- Low water cut-off control with manual reset
- Combination pressure, temperature gauge
- Hot water return baffle for shock resistance
- Safety relief valve(s) per ASME Code
- Stack thermometer
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Technical Data
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