Brochures & Datasheets
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| Technical Data | Related Products

The Hurst 500 Series four-pass waterback scotch marine boiler is an ideal choice for all commercial and industrial applications when engineering mechanical systems using the latest HVACR technologies. The Hurst 500 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 front doors can be opened without removing any burner components or controls.

The Waterback Advantage

Dryback 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. This can bring your production process to a costly halt.

All of those frustrating problems have been designed out of the Hurst Series 500 Waterback. It has a full waterback radiant heat transfer area that promotes superior internal water circulation and rapid heat absorption. Separate rear tube sheets allow each pass of tubes to expand and contract at its own rate without tube-to-sheet stress. Tubes are mechanically rolled, flared and beaded, making any tube service a simple matter. The only rear refractory is a manway plug which allows access to the furnace for inspection.

Standard Steam Trim

• Operating and high limit pressure control
• Modulating pressure control (when appl.)
• Water column with gauge glass, combination low water cut-off and pump control
• Probe Aux, L.W.C.O. with Manual Reset
• Steam pressure gauge, syphon and test cock
• Stack Thermometer, Water column drain valve
• Safety relief valve(s) per ASME Code

Standard Water Trim

• Operating and high limit temperature control
• Modulating temperature control (when appl.)
• Probe type low water cut-off control with Manual Reset
• Combination pressure and temperature gauge
• Hot water return baffle for shock resistance
• Safety relief valve(s) per ASME Code
• Stack Thermometer

Additional Information