Learn More About The Hurst Series 400 Boiler Today

Learn More About The Hurst Series 400 Boiler Today

The Hurst Series 400 Boilers are an ideal choice for a long list of industrial and commercial applications. As an innovative three-pass wetback scotch marine boiler, it uses the latest HVACR technologies to deliver fuel efficiency that surpass most four-pass designs.

Continue reading to learn more about the Hurst Series 400 scotch marine boiler.

Standard Features and Benefits

The Hurst Series 400 Boilers are the optimum choice for engineering mechanical systems utilizing the most cutting-edge HVACR technologies. Some of the most common features and benefits offered by the Hurst Series 400 scotch marine boiler include:

Superior Efficiency - The Series 400 boiler is manufactured for optimum fuel efficiency. The boiler has proven its efficiency through certified tests and continues to deliver results that often exceed or meet the efficiency of four-pass boilers.

Low Maintenance - With this scotch marine boiler, there are no refractory baffles to maintain or replace. By removing these features, it results in savings of multiple thousands of dollars.

Durability - Wet back boilers are notorious for delivering longer and more robust life spans than the dry back counterpart. In addition, each unit is built in accordance with the ASME Code.

Design - Each Hurst Series 400 Boiler infuses a cutting-edge computer design technique. This advanced engineering results in the optimum utilization of the boiler's performance criteria and exact calculations of construction materials.

Easy Access - Without having to worry with a large refractory door, a single technician can effortlessly take off the rear cover plates to access the tubes. The front doors are able to be opened without removing controls or burner components.

Quality - Every unit is inspected, tested, and registered with the National Board of Boiler and Pressure Vessel Inspectors

Compact Design - Empowered by CAD or computer aided design, Hurst has transformed the wet back design into a compact, space-saving workhorse without negating the principle 5 sq. ft. of heating surface per BHP

Reliable Combustion Components - Instead of using cheaper and inferior products, Hurst uses name brand components with proven reliability. Each unit is burner/boiler compatible and tested at the factory before shipment.

Independent Tube Sheets - The Hurst Series 400 Boilers include independent tube sheets with uniform temperatures. Competing four and three pass dry back boilers are designed with tube sheets that have large variations in temperature, which leads to premature tube failure and damage to the tube sheets.

Hurst Series 400 Boiler Capacity

This high pressure boiler boasts capacities of 15 to 2,000 BHP / 1,004 to 50,213 MBTU/HR. Available for 15 PSI Steam and 30 PSI Water (60 PSI Water Optional). A few of the key highlights of this line of boilers include:

  • No field assembly required
  • Factory assembled, tested, and pre wired
  • Completely assembled, pre wired, pre piped, pressure-tested gas trains
  • UL listed burner/boiler packages
  • High efficiency, low stack temperatures
  • Complies with CSD-1, ASME, UL, and ASHRAE standards

Why Choose a Wet Back Boiler?

Dry back boilers are commonly associated with certain complications including:

  • Leaking baffles
  • Deteriorating rear refractory
  • Leaking door seals
  • Heat-stressed rear tube sheet

Fragile refractory door seals and baffling will require maintenance, continuous monitoring, and replacement. This maintenance and/or replacement can easily cost thousands of dollars in specialized labor costs and materials over the life of your boiler.

At the same time, leaking seals and broken baffles can short-circuit the boiler's gas flow, which results in decreased efficiency and high stack temperatures until the proper repairs can be made. This can hamper your production process or bring it to a halt.

However, all of these costly problems were deeply considered and designed out of the Hurst Series 400 Boiler. This scotch marine boiler offers a full wet back radiant heat transfer area, which delivers rapid heat absorption and superior internal water circulation.

The separate rear tube sheets of the Hurst Series 400 allow each pass of tubes to contract and expand at its own rate without tube-to-sheet stress.

All tubes are mechanically rolled, flared, and beaded, which makes servicing the tubes a simple process. The only rear refractory in the Hurst Series 400 is a manway plug that allows technicians to access the furnace for inspection.

Wet Back Boilers Relieve Stress for an Extended Life

Standard Steam TrimStandard Water Trim
Water column with gauge glass, combo low water cut-off, and pump controlProbe type low water cut-off control with manual reset
Situational modulating pressure controlSituational modulating temp. control
High-limit and operating pressure controlHigh-limit and operating temp. control
Probe Aux, L.W.C.O. w/ Manual Reset Steam pressure gauge, syphon & test cockCombination pressure & temperature gauge
Stack Thermometer, Water column drain valveHot water return baffle for shock resistance
Safety relief valve(s) per ASME CodeSafety relief valve(s) per ASME Code
Stack Thermometer

Contact ATI of New York

ATI of New York is the leading manufacturer's representative — offering equipment from Hurst and several other manufacturers. Contact us today to learn more about the Hurst Series 400 Boiler and how it could benefit your facility.

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