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Model CB Boilers

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Manuals & Parts Lists
  • 50 to 100 HP
    • Manual
    • Parts List
    • Burner Drawer Configurations
  • 125 to 200 HP Manual
    • ​Manual
    • Parts List
    • ​Burner Drawer Configurations
  • 250 to 350 HP Manual
    • ​Manual
    • Parts List
    • Burner Drawer Configurations
  • ​400 to 800 HP Manual
    • ​Manual
    • ​Parts List
    • ​Burner Drawer Configurations
  • Brochure
  • ​Capacities, Dimensions, Weights & Ratings
    • ​Hot Water
    • Steam
  • Performance Info
    • ​Emission Levels​
    • Heating Surface Area
    • Sound Levels
  • Example Product Specifications
    • ​Hot Water
Tech Guides
  • Burner Service
    • Atomizing Air Compressor
    • Blower Motor & Impeller
    • Diffuser Selection
    • Diffuser & Nozzle Positioning
    • Electrode Selection
    • Oil Metering Block Repair
    • Oil Nozzle &  Gun Components
    • Gas Pressure & Flow Requirements
    • Linkage & Jackshaft Arrangements
    • Manifold (Gas Elbow) Pressures
    • ​Motor Rotation Guide
    • Spud Arrangements
  • Repair & Maintenance
    • Davit Arm & Hinge
    • ​Gasketing Instructions
    • Rear Door
    • Throat & Liner Tiles
  • Pressure Vessel
    • Handhole & Manhole Selection
    • Non-Return Valve Sizing
    • Relief Valve Selection
    • Steam Nozzle Sizing
    • Tube Selection
  • Fuel Trains
    • ​Gas train assembly
    • #2 Oil train assembly
    • #6 Oil train assembly
    • ​Propane conversions
  • Trim Arrangements
    • Level Controls
    • ​Pressure Controls
    • Temperature Controls

Product Overview
Cleaver-Brooks Model CB

Product type: Firetube boiler
# of Passes: 4
Turnaround configuration: Dryback
Burner Type: Integral rotary air damper
Oil Atomization: Air atomizing
Production status:
  • 36" & 48" - In production
  • 60", 78" and 96" - Obsolete. Replaced by model CBLE.
Sq. Ft. per Boiler HP: 5
  • Note: 800 HP models are 4.375 sf/BHP
​Pressure ranges: 15 to 300 psi Steam, 30 to 125 psi Hot Water
Shell Diameters:
  • 36" - 15 to 40 HP
  • 48" - 50 to 100 HP
  • 60" - 125 to 200 HP
  • 78" - 250 to 350 HP
  • 96" - 400 to 800 HP

Model Number Nomenclature Guide

The CB Model Number Nomenclature is based on three unique identifiers, each separated by a dash.​​
Identifier #1: Model
  • This identifies the product model as "CB"
Identifier #2: Fuel Configuration
  • This three digit numerical code identifies the fuels that the burner was originally configured to burn.
    • 100: Light Oil Only
    • 200: Light Oil or Gas
    • 400: Heavy Oil or Gas
    • 600: Heavy Oil Only
    • 700: Gas Only
Identifier #3: Horsepower
  • ​This two or three digit number identifies the capacity of the boiler, measured in boiler horsepower. It ranges from 15 to 800.
Nomenclature Example
  • CB-200-200
    • CB Model
    • Light Oil or Gas Firing
    • 200 Boiler Horsepower

Engineering Resources
2D Autocad Boiler Drawings (.dxf)
36" Diameter Shells
  • 15 HP CB
  • 25 HP CB
  • 40 HP CB
48" Diameter Shells
  • 50 HP CB
  • 60 HP CB
  • 70 HP CB
  • 80 HP CB
  • 100 HP CB
60" Diameter Shells
  • 125 HP CB
  • 150 HP CB
  • 200 HP CB
78" Diameter Shells
  • 250 HP CB
  • 300 HP CB
  • ​350 HP CB
96" Diameter Shells
  • 400 HP CB
  • 500 HP CB
  • 600 HP CB
  • 700 HP CB*
  • 750 HP CB*
  • 800 HP CB*
*Note: 700, 750 & 800 are same shell
Cut Sheets
Dimensions, Ratings & Connections (.pdf)
36" Diameter Shells
  • 15 HP CB
  • 25 HP CB
  • 40 HP CB
48" Diameter Shells
  • 50 HP CB
  • 60 HP CB
  • 70 HP CB
  • 80 HP CB
  • 100 HP CB
60" Diameter Shells
  • 125 HP CB
  • 150 HP CB
  • 200 HP CB
78" Diameter Shells
  • 250 HP CB
  • 300 HP CB
  • ​350 HP CB
96" Diameter Shells
  • 400 HP CB
  • 500 HP CB
  • 600 HP CB
  • 700 HP CB
  • 800 HP CB
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  • Home
  • Boiler Data
    • Cleaver-Brooks >
      • CB Model
      • PS & PSM Model
  • Burner Data
    • Beckett
    • Cleaver-Brooks
    • Gordon-Piatt >
      • Gordon Piatt F16
    • Industrial Combustion
    • Iron Fireman
    • Johnston
    • Kewanee
    • Limpsfield
    • Oilon
    • Powerflame
    • ST Johnson
    • Webster
    • York-Shipley
  • Aux Systems
  • Parts Data
    • Crane Valves
    • Honeywell
    • McDonnell & Miller
    • Mercoid
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    • Siemens LMV
    • Siemens Logo
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