Horsepower:
15-800HP

MBTU/HR:
502-26,780MBTU/HR

Steam To:
450PSI

Hot Water To:
60PSI

Available in Steam or Hot Water Versions 15 – 800 Bhp Pressures to 300 psig

  • Three-pass design
  • 81% minimum efficiency
  • Davited rear doors
  • Low maintenance
  • 5 sq. ft. heating surface/HP
  • Durable design
  • Heavily constructed

Standard Features

  • Boiler is of three pass dry back, scotch type, built and stamped in accordance with the requirements of the ASME Code, and listed by the National Board of Boilers and Pressure Vessel Inspectors.
  • Large combustion chamber with low heat release for complete combustion.
  • Rear smoke box includes slip-on stack connector and features hinged and davited rear door (all sizes) with 16″ dia. access door with 2″ observation port (80 Hp & larger).
  • Front doors are hinged, bolted and insulated (80 Hp & larger) to provide ready access to all firetubes.
  • Large 12″ x 16″ manholes are standard on larger units (40 Hp & up). Cleanout hand holes 3″ x 4″ are furnished in the bottom of the boiler shell.
  • Insulated with 2″ high-density fiberglass, the shell is covered with 22 gauge grip jacketing and spray baked on powder coat finish.
  • 2 1/2″ dia. steel firetubes (2″ dia. through 30 Hp) are rolled and beaded on power boilers, expanded and flared on low pressure boilers.
  • Twin lifting lugs are securely welded to the top of the shell. Heavy steel support legs on skids provide support for the boiler & burner.

Standard Steam Trim

  • Operating & limit pressure control
  • Modulating pressure control (when applicable)
  • Water column with gauge glass, M-M 157 combination low water cut-off & pump control
  • Probe Aux, L.W.C.O.
  • Steam pressure gauge, syphon & test cock
  • Water column drain valve
  • Safety relief valve(s) per ASME Code

Standard Water Trim

  • Operating & limit temperature control
  • Modulating temperature control (when applicable)
  • Probe type low water cut-off control
  • Combination pressure, temperature and altitude gauge
  • Hot water return baffle for shock resistance
  • Safety relief valve(s) per ASME Code

Series 300 Boilers Downloads