Mohawk3-Pass Dryback Firetube Boiler

The Mohawk 3-pass dryback boiler is designed for maximum efficiency, reliability and durability in today’s most demanding environments.

Mohawk 3-Pass Dryback Firetube Boiler can burn:
Natural Gas, Propane, #2 Oil, Digester Gas, Hydrogen

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Features

  • 3-Pass dryback design
  • Pressures from 15-300 psi steam and 30-160 psi hot water
  • Sizes from 30-1,000 BoHP
  • Corrugated furnaces on ASME Section I high pressure boilers
  • Large furnace and rear turnaround volume for complete combustion
  • Roller-bearing supported single-hinged rear door for total fireside access
  • Large single furnace dryback design with exceptional efficiencies and economical operation
  • Packaged with Gas, Oil, or Combination Gas & Oil Burner

Construction

  • Customized, proven package burner solution
  • Handholes for waterside access
  • Factory installed gas train available with FM, GE-GAP, NFPA-85, UL and other approvals
  • Structural steel skid available with optional removable skids, jacking pads and seismic design
  • Generous Morrison corrugated furnace (standard on Section I boilers 80 BoHP and above
  • Front/Rear door gaskets made of ceramic fiber
  • Industrial grade, space saving, one-piece rear door

Available with NOx reduction technology to sub 9 ppm. With pressures of 15 to 300 psi steam and 30 to 160 psi hot water, the Mohawk is the intelligent option for your particular needs. Available in sizes ranging from 30 to 1,000 BoHP.

Quality

To make the highest quality scotch marine boiler on the market, we began with quality-in-design. The tube sheet, furnace, tubes and other critical components were designed to exceed the ASME code to guarantee a quality product that will last for decades.

The tubesheet is the most critical component in any scotch marine type boiler and ZHONGYUAN’s tubesheets exceed the ASME code thickness by 25% in low pressure units and 33% in high pressure units. Thick tube sheets coupled with tubes 10% thicker than ASME code requirements and ¾” ligament spacing give ZHONGYUAN Boiler Owners more tube seating surface and long equipment life.

For long, trouble free boiler life, it is also vital that combustion be completed within the confines of the firetube. The Mohawk is designed with a long furnace made with thicker material than ASME minimum requirements. In addition, the furnaces of high pressure steam Mohawk boilers are corrugated to thwart negative effects of expansion and contraction.

Our employees unite each and every day to seek quality in workmanship. Whether we are cutting steel, welding tubesheets to pressure vessels, insulating pressure vessels with two inch 8-lb density mineral fiber, painting galvanized 22 gauge steel jackets with 500°F enamel or piping a gas train, we tailor our products to exceed ASME standards.

Safety

Packaged boilers are trimmed with necessary safeties and code piping and inspected by authorized, independent code inspectors. Factory mounted and wired packaged burners are available from all burner manufacturers. Standard burners comply with UL requirements. Other code requirements such as CSD-1, IRI, FM, NFPA 85, and CSA are available upon request. Packaged Mohawk boilers can be factory firetested to check electrical components for proper operation and ensure smooth ignition and quicker field startups.

Exceptional Value

ZHONGYUAN Boilers offer thicker tubesheets, thicker tubes, large corrugated furnaces, and the ability to factory mount, wire and test UL or CSA listed burners from all burner manufacturers. However there are still more features that make the Mohawk an exceptional value. All Mohawk boilers have two 3” x 4” handhole openings in the front tube sheet, two handholes on the bottom centerline and an available manway which permits inspection of the bottom of the drum, and facilitates cleaning and tube removal. Full front end and fireside access is standard on all ZHONGYUAN Boilers. Our design eliminates the necessity of disconnecting fuel lines when inspection or maintenance functions are required.

Choice

Since 1930 we have continued to improve our offering of quality, safety, and exceptional value to our respected customers in industry, commerce and healthcare. We have a dedicated customer service team to support our products and offer a full line of after-market and OEM parts. With ZHONGYUAN Boiler Works, you can choose your steam or hot water packaged boiler solution to fit you demanding needs.

Mohawk 3-Pass Dryback Firetube Boiler
Mohawk 3-Pass Dryback Firetube Boiler

Mohawk 3-Pass Dryback Firetube Boiler Drawings

15# Steam, Low Pressure
30# Water, Low Pressure
150# Steam, High Pressure
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