Engineered and
Built to Order

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Capacity: 10,000 - 300,000 lb/hr

Fuel Capabilities: Digestor Gas, Fuel Oil, Hydrogen, Natural Gas, Other Fuels

Steam Design Pressure: Up to 1,200 psig


General Description

The Ds-Type industrial watertube boiler has a square furnace, allowing uniform heat flux, with a vertical or side flue gas exit, allowing flexibility and increased efficiency for your facility.


  • Compact patented design is unique in the industry providing an unmatched compact footprint
  • Superheated steam temperatures up to 900°F
  • Gas outlet options: top, left or right side
  • Lower operational cost given smaller FD fan motor HP
  • Offered in the patented DFW design


  • Square furnace with uniform heat flux promotes lower emissions
  • Field erect designs available
  • Robust long lasting design, +30 years lifespan
  • Windbox mounted FD fan for capacities 120KPPH and under
  • Available as a Modular Boiler System


100% Furnace water-cooled membrane wall construction
Air-tight full membraned front, rear, and side exterior walls
0.25″ thick membrane fin plate
All drilled drum holes are grooved
Minimum tube thickness exceeds ASME requirements:
– 0.105″ min. wall convection tubes
– 0.120″ min. wall furnace tubes
Economizer designed and built by Superior
All ladders and platforms are fit and bolted to boiler then disassembled for shipment


Packaged boilers are trimmed with necessary safeties and code piping and signed off on by code inspectors. Factory mounted and wired, proven and reliable packaged burners are available from your choice of burner manufacturer.

Our Problem Solvers Explain

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