The Boiler BookProduced by the Employees of
Performance Proven Worldwide
Cleaver-Brooks Division, Aqua-Chem, Inc. 2002
The Boiler Book is protected by copyright and is to be used
solely by consulting and specifying engineers for the purpose of
selecting and specifying Cleaver-Brooks equipment. Any other use of
The Boiler Book is strictly prohibited without written permission
from Cleaver-Brooks.
Cleaver-Brooks P.O. Box 421 Milwaukee, WI 53201
(414) 359-0600 email: [email protected]
www.cleaver-brooks.com Printed in the U.S.A.
iii
The Boiler Book is intended for use by qualied engineering
professionals. All information contained herein is subject to
change without notice. Cleaver-Brooks is only responsible for the
accuracy of the information and data presented at time of
publication. Cleaver-Brooks shall not be responsible for the use of
this data or information nor for any systems, designs, or
engineering in which the data or information is utilized.
iv
TABLE OF CONTENTSFiretube Boilers . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . Section AA1 General A2 Model CB Boilers A3 Model CB (LE)
Boilers A4 Model CBW Boilers A5 Discontinued A6 Model CB Ohio
Special Boilers A7 Model CBE Boilers A8 Model CEW Boilers A9 Model
CEW-LN Boilers A10 Model CEW Ohio Special Boilers A11 Model CBL
Boilers A12 Model ICB Boilers A13 Model ICB-LN Boilers
Commercial Boilers. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . Section BB1
Model FLX Boilers B2 Model 4 Boilers B3 Model 5 Boilers B4 Electric
Boilers B5 - TrueFire Boilers B6 - ClearFire Boilers
Industrial Watertube Boilers . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . Section C Controls
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . Section D
Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . Section E
Stacks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section
F Economizers . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . Section G
Feedwater Systems. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . Section HH1
Spraymaster Deaerators (Single Tank) H2 Spraymaster Deaerators (Duo
Tank) H3 Boilermate Deaerators H4 Surge Tanks H5 Boiler Feed
Systems H6 Chemical Feed Systems and Metering Pumps H7 Filters H8
Softeners H9 Dealkalizers H10 Blowdown Separators H11 Blowdown Heat
Recovery Systems H12 Flash Tank Heat Exchangers H13 Sample
Coolers
System Fundamentals . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . Section II1
Boiler Selection Considerations I2 Hot Water Systems I3 Steam
Systems I4 General Engineering Data
Glossary/Index. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section
J
Section A1GENERALModel CB Boilers Model CB-LE Boilers Model CBW
Boilers Model CBH Boiler (discontinued) Model CB Ohio Special
Boilers Model CBE Boilers Model CEW Boilers Model CEW-LN Boilers
Model CEW Ohio Special Boilers Model CBL Boilers Model ICB Boilers
Model ICB-LN Boilers A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13
A1-112-02
General
Firetube Boilers Heavy duty motor with direct drive, maintenance
free, caseless fan. Integral forced draft fan eliminates the need
for: Large diameter breeching. High chimneys. Induced draft fans.
Barometric dampers. Sequencing draft controls. Thick Fiberglass
Insulation: 2" insulation covered with sturdy sheet metal lagging
provides maximum efciency and durable construction. All units
nished with hard enamel paint coating. Customer Service and
Support:
FEATURES AND BENEFITSThe following Cleaver-Brooks retube boiler
models (CB, CB-LE, CBW, CB Ohio Special) include the following
features and benets. Packaged Design with Integral Front Head:
Integral front head provides proper burner/boiler compatibility for
maximum efciency and ease of maintenance. Packaged boiler is
factory assembled, wired, and tested for guaranteed performance and
reliability. Packaged design allows for easy connection of
utilities, minimum start-up requirements, and lower long-term
maintenance requirements. Built and tested to ASME standards.
Single Point Positioning Combustion Control Package: Accurate,
repeatable combustion control for responsiveness to load swings.
Single point linkage assembly for air and fuel simplies adjustments
and reduces start-up and maintenance costs. Unique variable
contour.cam assembly allows accurate adjustment and enhances safe
operation of the boiler. Computerized burner control provides
accurate sequencing and continuous monitoring for optimum safety,
efciency, and reliability. Low Stack Temperatures: Guaranteed
efciency veried by low stack temperatures. Reduced fuel and
operating costs. Low Excess Air: Operates at 3% O2 with less than
200 ppm CO for maximum combustion efciency. High efciency and low
maintenance requirements. High Steam Quality: Large steam space and
liberal surface area ensure high steam quality, free from entrained
particles of moisture. Provides reliable, high quality (98.5% dry)
source of steam. Quiet Operation: Integral front head with
vibration free combustion air fan provides quiet operation. Ideal
for sound critical applications, like hospitals and schools.
Boiler start-up, nal adjustment, and operator training provided
with all retube boilers. Emergency service response 24 hours a day,
7 days a week, from the industrys most advanced worldwide
computerized parts/service distribution network. Largest network of
factory trained technicians provide: System trouble shooting.
Operator training. Customized factory-backed planned maintenance
programs. Emergency boiler rental. Total after-sale support.
A1-212-02
Firetube Boilers
GeneralThe Model CB Ohio Special Boiler (standard offering)
design is based on operator requirements of the state of Ohio,
under the rules and regulations for unattended units. 100 hp
through 225 hp. Four-pass dryback design (100 hp). Two-pass dryback
design (125-225 hp). 150, 200 and 250 psig high pressure steam. 15
psig low pressure steam. Natural gas or light oil ring. The Model
CBE Boiler (standard offering) provides high quality steam or hot
water, utilizing a baseline boiler/burner design. Three-pass
dryback design. 60-350 hp. 15 psig low pressure steam. 150-300 psig
high pressure steam. 30 and 125 psig hot water. Natural gas or
light oil. The Model CEW Boiler (standard offering) provides high
quality steam or hot water, utilizing a baseline boiler/burner
design. Three-pass wetback design. 125-800 hp. 15 psig low pressure
steam. 150-250 psig high pressure steam. 30 and 125 psig hot water.
Natural gas or light oil. The Model CEW-LN Boiler is the baseline
retube product offering with a low emission package. Three-pass
wetback design. 125-800 hp. 30 ppm package (natural gas). 15 psig
low pressure steam. 150-250 psig high pressure steam. 30 and 125
psig hot water. Natural gas or light oil.
PRODUCT OFFERINGCleaver-Brooks retube boilers are available in
low pressure steam, high pressure steam, and hot water designs.
Burners are available to re natural gas, light oil, heavy oil, or a
combination of oil and gas. Optional alternate fuel (propane, mixed
gas, digester gas, etc.) burners are also available. The retube
product offering is available in the following models. The Model CB
Boiler (standard offering) is the premium retube product offering
providing maximum boiler efciency, the widest range of size and
pressures, and premium control packages. Four-pass dryback design.
15 hp through 800 hp. 150-350 psig high pressure steam. 15 psig low
pressure steam. 30 or 125 psig hot water. Natural gas, light oil,
or heavy oil ring. The Model CB (LE) Boiler is the premium retube
product offering with a low emission package. Four-pass dryback
design. 125-800 hp. 20-60 ppm packages (natural gas). 15 psig low
pressure steam. 150-300 psig high pressure steam. 30 and 125 psig
hot water. Natural gas or light oil. The Model CBW Boiler (standard
offering) provides the advantages of the Cleaver-Brooks integral
front head in a three-pass wetback design. Three-pass wetback
design. 100 hp through 800 hp. 150-250 psig high pressure steam. 15
psig low pressure steam. 30 or 125 psig hot water. Natural gas,
light oil, or heavy oil ring.
A1-312-02
GeneralThe Model CEW Ohio Special Boiler (standard offering)
baseline design is based on operator requirements of the state of
Ohio, under the rules and regulations of unattended units.
Three-pass wetback design. 100-225 hp. 15 psig low pressure steam.
150-200 psig high pressure steam. Natural gas or light oil. The
Model CBL Boiler (standard offering) line provides high quality
steam utilizing a boiler/burner package. Three or four-pass wetback
design. 800-1500 hp. 150-250 psig high pressure steam. Natural gas,
light oil, or heavy oil ring. The Model ICB Boiler is a baseline
retube product, designed to provide high quality steam or hot
water. Its revolutionary design incorporates the key features and
benets of both the wetback and dry back retube boilers. Three or
four-pass Intercooled design. 100 800 hp. 15 psig low pressure
steam. 150 300 psig high pressure steam. 30 and 125 psig hot water.
Natural gas or light oil ring. The Model ICB-LN Boiler is a
baseline retube product, designed to provide high quality steam or
hot water with a low emission package. Its revolutionary design
incorporates the key features and benets of both the wetback and
dry back retube boilers. Three or four-pass Intercooled design. 100
800 hp. 30 ppm package (natural gas). 15 psig low pressure steam.
150 300 psig high pressure steam. 30 and 125 psig hot water.
Natural gas or light oil ring.
Firetube Boilers
MODEL NUMBER, FUEL SERIES NUMBER, HORSEPOWER, AND DESIGN
PRESSUREThe model designation for Cleaver-Brooks retube boilers
includes the following: Light Oil: Series 100 Natural Gas: Series
700 Heavy Oil: Series 600 Light Oil and Natural Gas: Series 200
Heavy Oil and Natural Gas: Series 400 For example, a model
CB700-350-150ST would represent a model CB boiler, natural gas red,
350 hp, 150 psig steam design pressure. All Cleaver-Brooks retube
boilers are built in accordance with ASME Codes and, with the
exception of the Ohio Special Boilers and CBL Boilers, UL/ULC
standards. Insurance requirements (e.g., Industrial Risk Insurance
IRI, Factory Mutual FM, etc.) or special local code requirements
may dictate additional controls or equipment to be included. Please
contact your local Cleaver-Brooks authorized representative for
assistance in completing your specication or for additional
information and optional equipment. Refer to Table A1-1 for
information on the standard product offering for each retube boiler
model.
A1-412-02
Table A1-1. Quick Comparison of Standard Features for
Cleaver-Brooks FIretube Boilers
MODEL Rated Capacity Design PressureA
CB 15-800 HP (SECTION A2) 15-800 hp Steam 15-300 psig Hot Water
30 & 125 psig
CBLE 125-800 HP (SECTION A3) 125-800 hp Steam 15-300 psig Hot
Water 30 & 125 psig 4-Pass Dry Back 60" 125-200 hp 78" 250-350
hp 96" 400-800 hp
CBW 100-800 HP (SECTION A4) 100-800 hp Steam 15-250 psig Hot
Water 30 & 125 psig 3-Pass Wet Back 60" 100-200 hp 78" 250-400
hp 96" 500-800 hp
CB OHIO SPECIAL 100-225 HP (SECTION A6) 100-225 hp Steam Only
15-250 psig
CBE 60-350 HP (SECTION A7) 60-350 hp Steam 15-300 psig Hot Water
30 & 125 psig
CEW 125-800 HP (SECTION A8) 125-800 hp Steam 15-250 psig Hot
Water 30 & 125 psig 3-Pass Wet Back 60" 125-200 hp 78" 250-400
hp 96" 500-800 hp
CEW-LN 125-800 HP (SECTION A9) 125-800 hp Steam 15-250 psig Hot
Water 30 & 125 psig 3-Pass Wet Back 60" 125-200 hp 78" 250-400
hp 96" 500-800 hp
CEW OHIO SPECIAL 100-225 HP (SECTION A10) 100-225 hp Steam
15-250 psig
CBL 800-1500 HP (SECTION A11) 800-1500 hp Steam 150-250 psig
ICB 100-800 HP (SECTION A12) 100-800 hp Steam 15-300 psig Hot
Water 30 & 125 psig
ICB-LN 100-800 HP (SECTION A13) 100-800 hp Steam 15-300 psig Hot
Water 30 & 125 psig
Boiler Type Shell Size
4-Pass Dry Back 36" 15-40 hp 48" 50-100 hp 60" 125-200 hp 78"
250-350 hp 96" 400-800 hp 15-800 hp No. 2 Oil, Gas, Combination
Oil/Gas 50-800 hp No. 6 OilB, Gas, Combination Oil/Gas
Passes VaryC 48" 100 hp 60"125-225 hp
3-Pass Dry Back 48" 60-100 hp 60" 125-200 hp 78" 250-350 hp
3 Pass Wet Back 60" 100-225 hp
3 or 4-Pass Wet Back 114" or 126"E
4-Pass Intercooled 4-Pass Intercooled 3-Pass Option 3-Pass
Option 55" 100-125 hp 60" 150-200 hp 72" 250-300 hp 78" 350-400 hp
92" 500-600 hp 106" 700-800 hp No. 2 Oil, Natural Gas Combination
Oil/ Gas 55" 100-125 hp 60" 150-200 hp 72" 250-300 hp 78" 350-400
hp 92" 500-600 hp 106" 700-800 hp No. 2 Oil, Natural Gas
Combination Oil/ Gas
Fuel
No. 2 Oil, Gas, Combination Oil/Gas
No. 2 Oil, Gas, Combination Oil/Gas No. 6 OilB, Gas, Combination
Oil/Gas
100-225 hp No. 2 Oil, Gas, Combination Oil/Gas 100 hp No. 6 Oil,
Gas, Combination Oil/Gas Full Modulation
No. 2 Oil, Gas, Combination Oil/Gas
No. 2 Oil, Gas, Combination Oil/Gas
No. 2 Oil, Gas, Combination Oil/Gas
No. 2 Oil, Gas, Combination Oil/Gas
800-1300 hp No. 2 Oil, Gas, Combination Oil/Gas 800-1500 hp Gas
800-1000 hp No. 6 Oil, Gas, Combination Oil/Gas
12-02
Firing Method
15-20 hp On-off 30-40 hp Low-High-Low-Off 50-800 hp Full
Modulation
Full Modulation
Full Modulation
Full Modulation
Full Modulation
Full Modulation
Full Modulation
Full Modulation
Full Modulation
Full Modulation
Air Damper Type
Single Blade 15-40 hp Rotary 50-800 hp Blue UL & ULC
Boiler/Burner McD&M 157 Warrick 3C-2 McD&M PS
750-MT-120
Rotary
Rotary
Rotary
Multi-Blade
Multi-Blade 125-350 hp, Rotary 400-800 hp Blue UL & cUL
Boiler/ Burner McD&M 157 Warrick 3C-2 McD&M PS
750-MT-120
Rotary
Multi-Blade
Rotary & Louvers
Multiblade 100-250 hp Rotary 300-800 hpF Blue UL & cUL
Boiler/Burner McD&M 157, McD&M 193 Warrick 3C-2 McD&M
PS 750-MT-120
Rotary
Paint Color Approvals
Blue UL & ULC Boiler/Burner McD&M 157 Warrick 3C-2
McD&M PS 750-MT-120
Blue UL & ULC Boiler/Burner McD&M 157 Warrick 3C-2
McD&M PS 750-MT-120
Blue N/A
Blue UL & cUL Boiler/Burner McD&M 157 Warrick 3C-2
McD&M PS 750-MT-120
Blue UL & cUL Boiler/Burner McD&M 157 Warrick 3C-2
McD&M PS 750-MT-120
Blue N/A
Blue 800-1000 hp UL & CSA (Burner Only) McD&M 193-7
Warrick 3C-2 N/A
Blue UL & cUL Boiler/Burner McD&M 157, McD&M 193
Warrick 3C-2 McD&M PS 750-MT-120
Steam Trim-Low Water Control Steam Trim Aux Low Water Control
Water Trim-Low Water Control
McD&M 157 Warrick 3C-2 N/A
McD&M 157 Warrick 3C-2 N/A
A Consult your local Cleaver-Brooks authorized representative
for higher design pressures. B Consult your local Cleaver-Brooks
authorized representative for No. 4 & No. 5 oil applications. C
Ohio Special-Model CB 100 hp 4-pass dryback, 125-225 hp 2-pass
dryback. E Shell varies by square foot of pressure vessel and
boiler horsepower. F ICB Three-Pass Boiler utilizes multiblade
100-350 and Rotary 400-800.
Table A1-1. Quick Comparison of Standard Features for
Cleaver-Brooks FIretube Boilers (Continued)
MODEL Controls Steam & Hot Water Controls Surface Blowoff
Conn. & Dip Tube on top C/L Air Vent Connection Stack
Thermometer Drain Valve-HW & 15 psig-Steam Front Door
CB 15-800 HP (SECTION A2) Hi Limit (MR), Oper. Limit, Firing
Rate 30-800 hp HPS-Std LPS-Conn. Only HW-Std. Yes No Hinge 15-200
hp Davit/Hinge 250-800 hp Hinge 15-100 hp Davit 125-800 hp 2 inch 3
Phase
CBLE 125-800 HP (SECTION A3) Hi Limit (MR), Oper. Limit, Firing
Rate HPS-Std LPS-Conn. Only HW-Std. Yes No Hinge 125-200 hp Davit
/Hinge 250-800 hp Davit 2 inch 3 Phase
CBW 100-800 HP (SECTION A4) Hi Limit (MR), Oper. Limit, Firing
Rate HPS-Std LPS-Conn. Only HW-Std. Yes No Hinge 100-200 hp
Davit/Hinge 250-800 hp Davit 2 inch 3 Phase
CB OHIO SPECIAL 100-225 HP (SECTION A6) Hi Limit (MR), Oper.
Limit, Firing Rate HPS-Std LPS-Conn. Only N/A Yes No Hinge
CBE 60-350 HP (SECTION A7) Hi Limit (MR), Oper.Limit, Firing
Rate HPS-Std LPS-Conn. Only HW-Std. No No Davit
CEW 125-800 HP (SECTION A8) Hi Limit (MR), Oper. Limit, Firing
Rate HPS-Std LPS-Conn. Only HW-Std. No No Davit
CEW-LN 125-800 HP (SECTION A9) Hi Limit (MR), Oper. Limit,
Firing Rate HPS-Std LPS-Conn. Only HW-Std. No No Davit
CEW OHIO SPECIAL 100-225 HP (SECTION A10) Hi Limit (MR), Oper.
Limit, Firing Rate HPS-Std LPS-Conn. Only N/A No No Davit
CBL 800-1500 HP (SECTION A11) Hi Limit (MR), Oper. Limit, Firing
Rate HPS-Std
ICB 100-800 HP (SECTION A12) Hi Limit (MR), Oper. Limit, Firing
Rate HPS-Std LPS-Conn. Only HW-Std No No Davit
ICB-LN 100-800 HP (SECTION A13) Hi Limit (MR), Oper. Limit,
Firing Rate HPS-Std LPS-Conn. Only HW-Std No No Davit
N/A Yes N/A Davit
Rear Door Insulation Standard Voltage Requirements 12-02 Fuse
Protection
Hinge 100 hp Davit 125-225 hp 2 inch 3 Phase
Davit 2 inch 60-80 hp1 Phase 100-350 hp3 Phase Control Circuit
& All 3 Phase Loads Except Remote Oil Pump Yes-3 Phase Only
Cleaver-Brooks CB110 Ultraviolet
Davit 2 Inch 3 Phase
Davit 2 Inch 3 Phase
Davit 2 Inch 3 Phase
Davit 2 Inch 3 Phase
Davit 2 inch 3 Phase
Davit 2 inch 3 Phase
Control Circuit & All 3 Phase Loads Except Remote Oil Pump
Yes Cleaver-Brooks CB780 Infrared
Control Circuit & All 3 Phase Loads Except Remote Oil Pump
Yes Cleaver-Brooks CB780 Infrared
Control Circuit & All 3 Phase Loads Except Remote Oil Pump
Yes Cleaver-Brooks CB780 Infrared
Control Circuit & All 3 Phase Loads Except Remote Oil Pump
Yes Cleaver-Brooks CB780 Infrared
Control Circuit & All 3 Phase Loads Except Remote Oil Pump
Yes Cleaver-Brooks CB110 Ultraviolet
Control Circuit & All 3 Phase Loads Except Remote Oil Pump
Yes Cleaver-Brooks CB110 Ultraviolet
Control Circuit & All 3 Phase Loads Except Remote Oil Pump
Yes Cleaver-Brooks CB110 Ultraviolet
Control Circuit & All 3 Phase Loads Except Remote Oil Pump
Yes Cleaver-Brooks CB110 Ultraviolet (Gas & No. 2 Oil) Infrared
(No. 6 Oil) Burner without Key Lock LD, FV, LW, FF
Control Circuit & All 3 Phase Loads Except Remote Oil Pump
Yes Cleaver-Brooks CB110 Ultraviolet
Control Circuit & All 3 Phase Loads Except Remote Oil Pump
Yes Cleaver-Brooks CB110 Ultraviolet
Control Circuit Transformer Flame Safeguard Control Scanner
Type
Control Panel Location Indicating Lights Type of Pilot
Front Head with Key Lock 50-800 hp LD, FV, LW, FF Interrupted
Gas Pilot-Gas, No. 6 Oil & All Combination 15-800 hp Direct
Spark Ignition-No. 2 Oil 15-40 hp Spark Ignited Oil Pilot-No. 2 Oil
50-800 hp
Front Head with Key Lock LD, FV, LW, FF Interrupted Gas
Pilot-Gas & All Combination
Front Head with Key Lock LD, FV, LW, FF Interrupted Gas
Pilot-Gas, No. 6 Oil & All Combination Spark Ignited Oil Pilot
No. 2 Oil
Front Head with Key Lock LD, FV, LW, FF Interrupted Gas
Pilot-Gas, No. 6 Oil & All Combination Spark Ignited Oil Pilot
No. 2 Oil
Burner without Key Lock LD, FV, LW, FF Interrupted Gas Pilot-Gas
& All Combination
Burner without Key Lock LD, FV, LW, FF
Burner without Key Lock LD, FV, LW, FF
Burner without Key Lock LD, FV, LW, FF
On Burner without Key Lock LD, FV, LW, FF
Remote-Right Side without Key Lock LD, FV, LW, FF
Interrupted Gas Interrupted Gas Interrupted Gas Interrupted Gas
Interrupted Gas Interrupted Gas Pilot-Gas, No. 2 Oil Pilot-Gas, No.
2 Oil Pilot-Gas, No. 2 Oil Pilot-Gas, No. 2 Oil, Pilot-Gas, No. 2
Oil Pilot-Gas, No. 2 Oil All Combination All Combination No. 6 Oil
& & & All Combination & All Combination All
Combination All Combination
Spark Ignited Oil Pilot No. 2 Oil
No. 2 Oil Direct Spark Ignition 60-100 hp Gas Pilot 125-350
hp
Table A1-1. Quick Comparison of Standard Features for
Cleaver-Brooks FIretube Boilers (Continued)
MODEL Gas Burner Type
CB 15-800 HP (SECTION A2) High Radiant Multi-PortAll Except
125-200 hpAnnular Entry Motorized Buttery Valve Required, Not
Included Yes No-15-50 hp Yes-60-800 hp Air Atomizing
CBLE 125-800 HP (SECTION A3) High Radiant Multi-PortAll Except
125-200 hpAnnular Entry Motorized Buttery Valve Required, Not
Included Yes Yes
CBW 100-800 HP (SECTION A4) High Radiant Multi-PortAll Except
125-200 hpAnnular Entry Motorized Buttery Valve Required, Not
Included Yes Yes
CB OHIO SPECIAL 100-225 HP (SECTION A6) High Radiant Multi-Port
100 hp Annular 125-225 hp
CBE 60-350 HP (SECTION A7) High Radiant Multi-Port
CEW 125-800 HP (SECTION A8) High Radiant Multi-Port
CEW-LN 125-800 HP (SECTION A9) High Radiant Multi-Port
CEW OHIO SPECIAL 100-225 HP (SECTION A10) High Radiant
Multi-Port
CBL 800-1500 HP (SECTION A11) High Radiant Multi-Port
ICB 100-800 HP (SECTION A12) High Radiant Multi-Port
ICB-LN 100-800 HP (SECTION A13) High Radiant Multi-Port
Main Gas Valve Main Gas Control System Gas Pressure Regulator
Gas Pilot Regulator High & Low Gas Pressure Switches Oil Burner
Type
Motorized Buttery Valve Required, Not Included Yes Yes
Solenoid, Motorized Solenoid, Motorized Solenoid, Motorized
Solenoid, Motorized Buttery Valve Included Yes Yes Buttery Valve
Included Yes Yes Buttery Valve Included Yes Yes Buttery Valve
Included Yes Yes
Motorized Buttery Valve Included Yes Yes
Solenoid, Motorized Solenoid, Motorized Buttery Valve Included
Yes Yes Buttery Valve Included Yes Yes
Air Atomizing
Air Atomizing
Air Atomizing
Pressure Atomizing Pressure Atomizing 125-200 hp 60-200 hp Air
Atomizing Air Atomizing 250-800 hp 250-350 hp Air Compressor Air
CompressorShipped loose Shipped Loose Solenoid Metering System
Included No. 2 Oil 60-200 hp Burner Mounted No. 2 Oil 250-350 hp
Remote Solenoid Metering System Included No. 2 Oil 125-200 hp
Burner Mounted No. 2 Oil 250-800 hp Remote No-Use CEW-LN
Air Atomizing Air Compressor 125-300 hpMounted 350-800 hpShipped
Loose Solenoid Metering System Included No. 2 Oil 125-800 hp
Remote
Air Atomizing
Air Atomizing
Pressure Atomizing 100-150 hp Air Atomizing 200-800 hp Solenoid
Metering System Included No. 2 Oil 100-150 hp Burner Mounted No. 2
Oil 200-800 hp Remote No-Use ICB-LN
Air Atomizing
Main Oil Valves Oil Control System Oil Pump Location of Oil Pump
12-02
Solenoid Metering Valve Included No. 2 Oil 15-40 hp on Front
Head; 50-800 hp Remote No. 6 Oil 50-800 hp, Remote
Solenoid Metering Valve Included No. 2 Oil 125-800 hp Remote
Solenoid Metering Valve Included No. 2 Oil 100-800 hp Remote
Solenoid Metering Valve Included No. 2 Oil 100-225 hp Remote No.
6 Oil 100-225 hp Remote N/A
Solenoid Metering System Included No. 2 Oil 100-225 hp
Remote
Motorized Metering System Included No. 2 Oil Remote
Solenoid Metering System Included No. 2 Oil 100-800 hp
Remote
No. 6 Oil 100-800 hp Remote Induced FGRD (LE Option) 125-800 hp
20-60 ppm (Natural Gas) + or-0.25" W.C. No-Use CEW-LN
No. 6 Oil Mounted on Oil Pump/Oil Heater Skid Induced FGR 30
ppm(Natural Gas) N/A Optional-Induced FGR 30 ppm (Natural Gas) up
to 1300 hp. + or-0.50" W.C. + or-0.25" W.C. With FGR
NOx Control
No-Use CBLE
N/A
Induced FGR 30 ppm (Natural Gas)
Maximum Stack Pressure Variation Start-Up Included
15-40 hp + or-0.25" W.C. 50-800 hp + or-0.50" W.C. Yes
+ or-0.50" W.C.
+ or-0.25" W.C.
+ or-0.25" W.C.
+ or-0.25" W.C.
+ or-0.25" W.C.
+ or-0.25" W.C.
+ or-0.25" W.C.
+ or-0.25" W.C.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
D Altitude, size, and fuel series limitations may apply.
General
Firetube Boilers
Notes
A1-812-02
Section A2MODEL CB BOILERS
CONTENTS FEATURES AND BENEFITS . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . A2-3 PRODUCT OFFERING . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . A2-3 DIMENSIONS AND RATINGS . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . A2-4 PERFORMANCE DATA . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. A2-21 Efficiency . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . A2-21 Emissions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . A2-21 ENGINEERING DATA . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. A2-24 Blowdown Water Requirements . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . A2-24 Sound Level . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . A2-27 Gas-Fired Burners . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . A2-30 Gas
Pressure Regulator . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . A2-31 Oil-Fired Burners . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . A2-36 No. 6 Oil Piping, Storage Tank Heating . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . A2-36 Boiler Room Information .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . A2-44 Stack Support Capabilities . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . A2-44 Stack/Breeching
Size Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . A2-44 Boiler Room Combustion Air . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . A2-44 SAMPLE
SPECIFICATION (MODEL CB BOILER) . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A2-47 ILLUSTRATIONS Figure A2-1. Model CB Steam Boiler Dimensions
and Weights (15 and 150 psig Design Pressure 15 to 100 hp) Sheet 1
of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure A2-2. Model CB Steam Boiler Dimensions and Weights (15 and
150 psig Design Pressure 125 to 800 hp) Sheet 1 of 2 . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . Figure A2-3. Model CB Hot
Water Boiler Dimensions (30 psig and 125 psig Design Pressure 15 to
100 hp) - Sheet 1 of 2 . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . Figure A2-4. Model CB Hot Water Boiler Dimensions (30
psig and 125 psig Design Pressure 15 to 100 hp) - Sheet 1 of 2 . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . Figure A2-5.
Space Required to Open Rear Head on Model CB Boilers Equipped with
Davits . . . . . . . . . . . . . . . . . . . Figure A2-6. Lifting
Lug Location, Model CB Boilers - Sheet 1 of 2 . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure
A2-7. Model CB Boiler Mounting Piers 20 Figure A2-8. Predicted
Stack Temperature Increase for Pressure Greater Than 125 psig . . .
. . . . . . . . . . . . . . . . . . . . . Figure A2-9. Standard Gas
Train Connection Size and Location. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . A2-10 A2-12
A2-14 A2-16 A2-18 A2-18 A2-23 A2-34 A2-107-02
Model CB Boilers
Firetube BoilersA2-35 A2-36 A2-37 A2-37 A2-38 A2-38 A2-39 A2-39
A2-40 A2-40 A2-41 A2-41 A2-42 A2-42 A2-43 A2-43 A2-45 A2-45
A2-46
Figure A2-10. Typical Gas Piping Layout . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . Figure A2-11. Model CB Gas Train
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . Figure A2-12.
No. 2 Oil Connection Size, Location and Recommended Line Sizes . .
. . . . . . . . . . . . . . . . . . . . . . . . . . Figure A2-13.
No. 6 Oil Connection Size, Location and Recommended Line Sizes,
Model CB Boiler . . . . . . . . . . . . . . Figure A2-14. No. 2 Oil
Piping, Single Boiler Installation, Remote Oil Pump . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . Figure A2-15.
No.2 Oil Piping, Single Boiler Installation Oil Pump Integral with
Boiler . . . . . . . . . . . . . . . . . . . . . . . . Figure
A2-16. No. 2 Oil Piping, Multiple Boiler Installation, Remote Oil
Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure A2-17. No. 2 Oil Piping, Multiple Boiler Installation, Oil
Pump Integral with Boiler . . . . . . . . . . . . . . . . . . . . .
Figure A2-18. No. 2 Oil Piping, Multiple Boiler Installation . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . Figure A2-19. No. 6 Oil Piping, Single Boiler
Installation, Remote Oil Pump . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . Figure A2-20. No. 6 Oil Piping,
Multiple Boiler Installation, Remote Oil Pumps . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . Figure A2-21. No. 6 Oil
Piping, Multiple Boiler Installation . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure A2-22. No. 2 Oil Transfer Tank Detail . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . Figure A2-23. Typical Fuel Storage Tank
Arrangement. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . Figure A2-24. Typical
Cross Section of Bundled Lines . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure A2-25. Schematic of Standard Alstrom Hot Water Safety-Type
Preheating System . . . . . . . . . . . . . . . . . . . . . . .
Figure A2-26. Boiler Room Length (Typical Layout) . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . Figure A2-27. Boiler Room Width (Typical Layout)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . Figure A2-28. Breeching
Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. TABLES
Table A2-1. Model CB Steam Boiler Ratings (15 - 100 hp) . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . A2-5 Table A2-2. Model CB Steam Boiler Ratings
(125 - 800 hp) . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . A2-5 Table A2-3. Model CB
Hot Water Boiler Ratings (15 - 100 hp) . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-6
Table A2-4. Model CB Hot Water Boiler Ratings (125 - 800 hp) . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . A2-6 Table A2-5. Steam Boiler Safety Valve Openings .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . A2-7 Table A2-6. Hot
Water Boiler Relief Valve Openings . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . A2-8 Table A2-7. Predicted Fuel-to-Steam Efficiencies (%),
Model CB Boilers - 10 psig, Natural Gas . . . . . . . . . . . . . .
. . . A2-22 Table A2-8. Predicted Fuel-to-Steam Efficiencies (%),
Model CB Boilers - 125 psig, Natural Gas . . . . . . . . . . . . .
. . . A2-22 Table A2-9. Predicted Fuel-to-Steam Efficiencies (%),
Model CB Boilers - 10 psig, No. 6 Oil . . . . . . . . . . . . . . .
. . . . A2-22 Table A2-10. Predicted Fuel-to-Steam Efficiencies
(%), Model CB Boilers - 125 psig, No 6 Oil . . . . . . . . . . . .
. . . . . . A2-22 Table A2-11. Predicted Fuel-to-Steam Efficiencies
(%), Model CB Boilers - 10 psig, No. 2 Oil . . . . . . . . . . . .
. . . . . . A2-23 Table A2-12. Predicted Fuel-to-Steam Efficiencies
(%), Model CB Boilers - 125 psig, No. 2 Oil . . . . . . . . . . . .
. . . . . A2-23 Table A2-13. Model CB Boiler Emission Data . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . A2-24 Table A2-14. Heating
Surface, Model CB Boilers . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A2-24 Table A2-15. Steam Volume and Disengaging Area . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . A2-25 Table A2-16. Water Circulation Rate
and Temperature Drop for Hot Water Boiler . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . A2-25 Table A2-17. Recommended
Steam Nozzle Size (To Maintain 4000 to 5000 fpm Nozzle Velocity) .
. . . . . . . . . . . . . . A2-26 Table A2-18. Recommended
Non-Return Valve Size . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-26
Table A2-19. Model CB Blowdown Tank Sizing Information . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . A2-27 Table A2-20. Sound Pressure Level Summary (50 - 800
hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . A2-27 Table A2-21. Model CB Boiler
Sound Pressure Level Details (40 hp) . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . A2-27 Table A2-22.
Model CB Boiler Sound Pressure Level Details (50 - 125 hp) . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-28
Table A2-23. Model CB Boiler Sound Pressure Level Details (125 -
200 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . A2-29 Table A2-24. Model CB Boiler Sound Pressure Level
Details (250 - 350 hp) . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . A2-29 Table A2-25. Model CB Boiler Sound
Pressure Level Details (400 - 800 hp) . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . A2-30 Table A2-26. Minimum
Required Gas Pressure at Entrance to Standard and FM Gas Trains
(Downstream of Gas Pressure Regulator) . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . A2-31 Table A2-27. Minimum Gas Pressure at Entrance
to Gas Trains Equipped with Industrial Risk Insurers (IRI)
Requirements (Downstream of Gas Pressure Regulator) . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-31
Table A2-28. Under and Oversized Standard and FM Gas Trains, Model
CB Boilers (50 - 800 hp) . . . . . . . . . . . . . . . . A2-32
Table A2-29. Under and Oversized IRI Gas Trains, Model CB Boilers
(50 - 800 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . .
A2-33 Table A2-30. Minimum Required Gas Pressure Altitude
Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . A2-33 Table A2-31. Maximum Gas Consumption
(CFH) for Natural Gas and Propane Vapor & Gas Pilot Data. . . .
. . . . . . . . A2-34
A2-207-02
Firetube Boilers
Model CB Boilers Air atomizing oil burner available for proper
oil atomization, maximum combustion efciency, and low maintenance
requirements. Air atomizing compressor provided with the boiler
package for clean oil burning and ease of maintenance. Combination
gas/oil burners provide quick fuel changeover without re-adjustment
of the burner. Fuel oil controller eliminates the need for over 40
connections, combining gauges, valves, and regulators into a single
casting. Retractable oil nozzle provides easy access and cleaning
and eliminates coking of oil and nozzle tip when ring gas. Low NOx
Capability Available:
FEATURES AND BENEFITSIn addition to the features provided on all
Cleaver-Brooks Firetube Boilers, the following features apply
specically to Model CB Firetube Boilers. The CB four-pass dryback
boiler is the premium retube boiler design available. Four-Pass
Dryback Design: Four-pass design provides high ue gas velocities
and low stack temperature for guaranteed maximum efciency. Dryback
design provides full access to boiler tubes, tube sheet, and
furnace for ease of maintenance. Dryback design includes single
rear tube sheet construction, providing reduced tube sheet
stresses. Five Square Feet of Heating Surface per Boiler hp:
Maximum heat transfer with minimum thermal stresses provide
guaranteed efciency and long boiler life. Highest guaranteed
fuel-to-steam efciencies. Low Furnace Location Furnace located well
below water level with generous clearance from bottom of boiler,
allowing proper circulation. Low furnace provides additional safety
margin between furnace and water level. Reduces water carryover,
producing drier steam. Hinged or Davited Front and Rear Doors:
Provides full access to front and rear tube sheet and furnace.
Reduces maintenance costs. High Turndown Burner: 4:1 turndown (gas
and oil) is standard on boilers up to 250 hp. Guaranteed 10:1
turndown (gas red) 8:1 (No. 2 oil red) standard on 250 hp through
800 hp. Advanced burner design provides maximum combustion
efciencies and high turndown. Reduced boiler cycling and
maintenance. Boiler stays on line during low load conditions for
optimum efciency and performance. Gas, No. 2 Oil, No. 6 Oil, and
Combination Gas and Oil Burners Available: High radiant multi-port
gas burner designed for high gas velocities and complete fuel/air
mixing, providing maximum combustion efciencies.
20 ppm NOx guarantee available on Model CB (LE) Boilers.
PRODUCT OFFERINGModel CB Firetube Boilers are available in low
pressure steam, high pressure steam, and hot water designs. Burners
are available to re natural gas, light oil, heavy oil, or a
combination of oil and gas. Optional alternate fuel burners are
also available. Model CB Boilers include: Four-pass dryback design.
15 hp through 800 hp. 150 psig - 350 psig high pressure steam. 15
psig low pressure steam. 30 psig or 125 psig hot water. Natural
gas, light oil, or heavy oil ring. The Model CBBoiler is the
premium retube product offering providing maximum boiler efciency,
the widest range of size and pressures, and premium control
packages. Available options: For option details, contact your
CleaverBrooks authorized representative. Options include the
following: Boiler Options Auxiliary low water cut-off (standard on
steam boilers). Drain valves. Additional screwed or anged tappings.
Special design pressures. Surge load bafes. Seismic design.
A2-307-02
Model CB Boilers Internal hot water coils. Blowdown valves.
Non-return valves. Feedwater valves and regulators. Special doors,
davited, hinged, left swing. Special base rails. Surface blowdown
systems. Combustion relief door. Weather-proong. Blend pump.
Burner/Control Options Special modulation controls. Low NOx
equipment. Optional ame safeguard controller. Lead/lag system. High
altitude design, up to 12,000 ft. Special insurance and code
requirements (e.g., IRI, FM, ASME CSD-1). Alarm bell/silence
switch. Special motor requirements (TEFC, high efciency). Remote
contacts. Special purpose indicator lights. Main disconnect.
Elapsed time meter. Voltmeter/micro-ammeter. NEMA enclosures. Low
re hold controls. Remote emergency shut-off (115V). Circuit
breaker. Day/night controls. Special power requirements. Fuel
Options Automatic fuel changeover. Special gas pressure regulator.
Oversized/undersized gas trains. Gas strainer. Special fuel
shut-off valves. Special pilot.
Firetube Boilers
Alternate fuel ring (propane, digester gas, etc.). Special oil
pumps.
DIMENSIONS AND RATINGSDimensions and ratings for the Model CB
boilers are shown in the following tables and illustrations: Table
A2-1. Model CB Steam Boiler Ratings (15 thru 100 hp) Table A2-2.
Model CB Steam Boiler Ratings (125 thru 800 hp) Table A2-3. Model
CB Hot Water Boiler Ratings (15 thru 100 hp) Table A2-4. Model CB
Hot Water Boiler Ratings (125 thru 800 hp) Table A2-5. Safety Valve
Openings Table A2-6. Relief Valve Openings Figure A2-1. Model CB
Steam Boiler Dimensions (15 and 150 lb design pressure) (15 thru
100 hp) Figure A2-2. Model CB Steam Boiler Dimensions (15 and 150
lb design pressure) (125 thru 800 hp) Figure A2-3. Model CB Hot
Water Boiler Dimensions (30 lb design pressure) (15 thru 100 hp)
Figure A2-4. Model CB Hot Water Boiler Dimensions (20 lb design
pressure) (125-800 hp) Figure A2-5. Space Required to Open Rear
Head on Model CB Boilers Equipped with Davits Figure A2-6. Lifting
Lug Locations, Model CB Boilers Figure A2-7. Model CB Boiler
Mounting Piers
A2-407-02
Firetube BoilersTable A2-1. Model CB Steam Boiler Ratings (15 -
100 hp)BOILER HP 15C 20C 30C 40C 50 60
Model CB Boilers
70
80
100
RATINGS - SEA LEVEL TO 3000 FT Rated Cap. (lbs steam/hr @212F)
Btu Output (1000 Btu/hr) 518 502 690 670 1035 1004 1380 1339 1725
1674 2070 2009 2415 2343 2760 2678 3450 3348
APPROXIMATE FUEL CONSUMPTION AT RATED CAPACITY Light Oil
(gph)A
4.5 625 6.3
6.0 835 8.4
9.0 1255 12.6
12.0 1675 16.8
15.0 14.0 2095 21.0
18.0 16.5 2510 25.1
21.0 19.5 2930 29.3
24.0 22.5 3350 33.5
30.0 28.0 4185 41.9
Heavy Oil (gph)B Gas (cfh) 1000 Btu-Nat Gas (Therm/hr)
POWER REQUIREMENTS - SEA LEVEL TO 3000 FT, 60 HZ Blower Motor hp
(except gas) Gas Models (only) Oil Pump Motor, hp No. 2 Oil Oil
Pump Motor, hp No. 6 Oil Oil Heater kW No. 6 Oil Air Compressor
Motor hp (Oil firing Only) 1 1 1 1 1-1/2 1-1/2 2 2 2 2 1/3 1/3 5 2
2 2 1/3 1/3 5 2 2 2 1/3 1/3 5 2 2D 2D 1/3 1/3 5 2 3 3 1/3 1/3 5
2
Belt-Driven From Blower -
Air Compressor Belt-Driven from Blower Motor
NOTES: 1. For altitudes above 3000 ft, contact your local
Cleaver-Brooks authorized representative for verification of blower
motor hp. A. Based on 140,000 Btu/gal. B. Based on 150,000 Btu/gal.
C. No. 6 Oil not available in 15-40 hp range. D. 3 hp above 2000
ft.
Table A2-2. Model CB Steam Boiler Ratings (125 - 800 hp)BOILER
HP 125 150 200 250 300 350 400 500 600 700 750 800 RATINGS SEA
LEVEL TO 3000 FT J Rated Cap. (lbs steam/hr @ 212F) Btu Output
(1000 Btu/hr) 4313 4184 5175 5021 6900 6695 8625 8369 10350 10043
12075 11716 13800 13390 17250 16738 20700 20085 24150 23432 25875
25106 27600 26779
APPROXIMATE FUEL CONSUMPTION AT RATED CAPACITY Light Oil (gph)A
Heavy Oil (gph)B Gas (cfh) MBTU-nat Gas (Therm/hr) 37.5 35.0 5230
52.3 45.0 42.0 6280 62.8 60.0 56.0 8370 83.7 74.5 69.5 10460 104.6
89.5 83.5 12555 125.5 104.5 97.5 14650 146.5 119.5 111.5 16750
167.5 149.5 139.5 20925 209.3 179.5 167.5 25100 251.0 209.0 195.5
29300 293.0 224.2 209.2 31385 313.8 239.3 223.4 33480 334.8
POWER REQUIREMENTS - SEA LEVEL TO 3000 FT, 60 HZ Blower Motor hp
(except gas) Gas Models (only) Oil Pump Motor, hp No. 2 Oil Oil
Pump Motor, hp No. 6 Oil Oil Heater kW No. 6 Oil Air Compressor
Motor hp (Oil firing Only) 5 5 1/2 1/2 5 7-1/2 5 1/2 1/2 5 15 10
1/2 1/2 5 7-1/2 7-1/2 1/2 1/2 7-1/2 10C 7-1/2I 3/4 1/2 7-1/2 15D 15
3/4 3/4 7-1/2 10C 10C 3/4 3/4 7-1/2 7-1/2 15E 15E 3/4 3/4
7-1/2K
20F 20F 3/4 3/4 7-1/2K 7-1/2
30G 30G 1 3/4 7-1/2K 7-1/2
40L 40L 1 3/4 7-1/2K 7-1/2
50H 50H 1 3/4 7-1/2K 7-1/2
Air Compressor Belt-Driven From Blower Motor
7-1/2
NOTES: 1. For altitudes above 3000 ft, contact your local
Cleaver-Brooks authorized representative for verification of blower
motor hp. A. Based on 140,000 Btu/gal. B. Based on 150,000 Btu/gal.
C.15 hp above 2500 ft. D. 20 hp above 2500 ft. E. 20 hp above 2000
ft.
F. 30 hp above 2500 ft. G. 40 hp above 2000 ft. H. 60 hp above
3000 ft. I. 10 hp above 2500 ft. J. Sea level to 2,500 ft for 300
and 350 Hp sizes. K. 10 kW on low pressure. L. 50 hp above 2500
ft.
A2-507-02
Model CB BoilersTable A2-3. Model CB Hot Water Boiler Ratings
(15 - 100 hp)BOILER HP 15c 20c 30c 40c 50 60 70 80
Firetube Boilers
100A
100
125A
RATINGS - SEA LEVEL TO 3000 FT Rated Cap Btu Output (1000
Btu/hr) 502 670 1004 1339 1674 2009 2343 2678 3348 3348 4184
APPROXIMATE FUEL CONSUMPTION AT RATED CAPCITY Light Oil (gph)A
Heavy Oil (gph)B Gas (cfh) MBtu- nat Gas (Therm/hr) 4.5 625 6.3 6.0
835 8.4 9.0 1255 12.6 12.0 1675 16.8 15.0 14.0 2095 21.0 18.0 16.5
2510 25.1 21.0 19.5 2930 29.3 24.0 22.5 3350 33.5 30.0 28.0 4185
41.9 30.0 28.0 4185 41.9 37.5 35.0 5230 52.3
POWER REQUIREMENTS - SEA LEVEL TO 3000 FT, 60 HZ Blower Motor hp
(except gas) Gas Models (only) Oil Pump Motor, hp No. 2 Oil Oil
Pump Motor, hp No. 6 Oil Oil Heater kW No. 6 Oil Air Compressor
Motor hp (Oil firing Only) 1 1 1 1 1-1/2 1-1/2 2 2 2 2 1/3 1/3 5 2
2 2 1/3 1/3 5 2 2 2 1/3 1/3 5 2 2D 2D 1/3 1/3 5 2 3 3 1/3 1/3 5 2 3
3 1/3 1/3 5 2 3 3 1/2 1/2 5 2
Belt-Driven From Blower -
Air Compressor Belt-Driven from Blower Motor
NOTES: 1. For altitudes above 3000 ft, contact your local
Cleaver-Brooks authorized representative for verification of blower
motor hp. A. Based on 140,000 Btu/gal. B. Based on 150,000 Btu/gal.
C. No. 6 Oil not available in 15-40 hp range. D. 3 hp above 2000
ft.
Table A2-4. Model CB Hot Water Boiler Ratings (125 - 800
hp)BOILER HP 150 175A 200 250 300 350 400 500 600 700J
750
800
RATINGS - SEA LEVEL TO 3000 FT Rated Cap. Btu Output (1000
Btu/hr) 5021 5858 6695 8369 10043 11716 13390 16738 20085
23432
25106
26779
APPROXIMATE FUEL CONSUMPTON AT RATED CAPCITY Light Oil (gph)A
45.0 42.0 6280 62.8 52.5 49.0 7320 73.2 60.0 56.0 8370 83.7 74.5
69.5 10460 104.6 89.5 83.5 12555 125.5 104.5 97.5 14650 146.5 119.5
111.5 16750 167.5 149.5 139.5 20925 209.3 179.5 167.5 25100 251.0
209.0 195.5 29300 293.0 224.2 209.3 31385 313.8 239.3 223.4 33480
334.8
Heavy Oil (gph)B Gas (cfh) MBtu-Natural Gas (Therm/hr)
POWER REQUIREMENTS - SEA LEVEL TO 3000 FT, 60 HZ Blower Motor hp
(except gas) Gas Models (only) Oil Pump Motor, hp No. 2 Oil Oil
Pump Motor, hp No. 6 Oil Oil Heater kW No. 6 Oil Air Compressor
Motor hp (Oil firing Only) NOTES: 1. For altitudes above 3000 ft,
contact your local Cleaver-Brooks authorized representative for
verification of blower motor hp. A. Based on 140,000 Btu/gal. B.
Based on 150,000 Btu/gal. C. 15 hp above 2500 ft. D. 20 hp above
2500 ft. E. 20 hp above 2000 ft. 7-1/2 5 1/2 1/2 5 7-1/2 5 1/2 1/2
5 15 10 1/2 1/2 5 7-1/2 7-1/2 1/2 1/2 7-1/2 10C 7-1/2I 3/4 1/2
7-1/2 15D 15 3/4 3/4 7-1/2 10C 10C 3/4 3/4 10 7-1/2 15E 15E 3/4 3/4
10 7-1/2 20F 20F 3/4 3/4 10 7-1/2 30G 30G 1 3/4 10 7-1/2 40K 40K 1
3/4 10 7-1/2 50H 50H 1 3/4 10 7-1/2
F. 30 hp above 2500 ft. G. 40 hp above 2000 ft. H. 60 hp above
3000 ft. I. 10 hp above 2500 ft. J. Sea level to 2,500 ft for 300
and 350 hp sizes. K. 50 hp above 2500 ft.
A2-607-02
Firetube Boilers
Model CB Boilers
Table A2-5. Steam Boiler Safety Valve OpeningsVALVE SETTING
BOILER HP 15 PSIG STEAM NO. OF VALVES REQ'D OUTLET SIZE (IN.) 100
PSIG STEAM NO. OF VALVES REQ'D OUTLET SIZE (IN.) 125 PSIG STEAM NO.
OF VALVES REQ'D OUTLET SIZE (IN.) 150 PSIG STEAM NO. OF VALVES
REQ'D OUTLET SIZE (IN.) 200 PSIG STEAM NO. OF VALVES REQ'D OUTLET
SIZE (IN.) 250 PSIG STEAM NO. OF VALVES REQ'D OUTLET SIZE (IN.)
15 20 25 30 40 50 60 70 80 100 125 150 200 250 300 350 400 500
600 700
1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 3 3 3 4 5
1-1/2 1-1/2 2 2 2-1/2 2-1/2 2 2 2-1/2 2-1/2 3 3 2-1/2 (1) 2-1/2
(1) 3 3 (1) 2 (2) 3 (2) 3 (1) 2-1/2 3 (1) 2-1/2 (3) 3 (3) 3
(2)2-1/2 (3) 3 (2)2-1/2 (3) 3 (2)2-1/2
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 3 3 3 4 5
1 1 1 1-1/4 1-1/4 1-1/2 1-1/2 2 2 2 1-1/2 (1) 2 (1) 1-1/2 2 (1)
2-1/2 (1) 2 2-1/2 (1) 2-1/2 (2) 2 (1) 2 (2) 2-1/2 2-1/2 (3) 2-1/2
(1) 2 (3) 2-1/2 (2) 2 (3) 2-1/2 (2) 2 (3) 2-1/2 (2) 2
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 3 3 4
3/4 1 1 1 1-1/4 1-1/2 1-1/2 1-1/2 1-1/2 2 (1) 1-1/2 (1) 1-1/4
1-1/2 (2) 1-1/2 2 (1) 2-1/2 (1) 2 2-1/2 2-1/2 (2) 2-1/2 (1) 2 2-1/2
(3) 2-1/2 (1) 2 (3) 2-1/2 (1) 2 (3) 2-1/2 (1) 2
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3
3/4 3/4 1 1 1 1-1/4 1-1/4 1-1/4 1-1/2 1-1/2 (1) 1-1/2 (1) 1-1/4
(1) 1-1/2 (1) 1-1/4 2) 1-1/2 (1) 2 (1) 1-1/2 2 (1) 2-1/2 (1) 2 (1)
2-1/2 (1) 2 2-1/2 2-1/2 (1) 2 (2) 2-1/2 (1) 2 (2) 2-1/2 (1) 2 (2)
2-1/2 (1)2
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2
3/4 3/4 3/4 3/4 1 1 1-1/4 1-1/4 1-1/4 1-1/2 (1) 1-1/4 (1) 1
1-1/4 (1) 1-1/2 (1) 1-1/4 1-1/2 (1) 2 (1) 1-1/2 2 2 (1) 2-1/2 (1) 2
2-1/2 2-1/2
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2
3/4 3/4 3/4 3/4 1 1 1 1-1/4 1-1/4 1-1/4 1 (1) 1 (1) 1-1/4 (2)
1-1/4 (1) 1-1/2 (1) 1-1/4 1-1/2 (1) 1-1/2 (1)2 (1) 2 (1) 1-1/2 2
(1) 2 (1) 2-1/2 2-1/2
750
5
5
4
3
2
2-1/2
2
2-1/2
800
5
5
4
3
2
2-1/2
2
2-1/2
NOTE: Valve manufacturers are Kunkle, Consolidated or Conbraco,
depending on availability.
A2-707-02
Model CB BoilersTable A2-6. Hot Water Boiler Relief Valve
OpeningsVALVE SETTING BOILER HP 15 20 25 30 40 50 & 50A 60 70
80 100 100A 125 125A 150 175A 200 250 300 350 400 500 600 700 750
800 30 PSIG HW NO. OF VALVES REQ'D 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2
2 2 3 3 4 4 5 5 5 OUTLET SIZE (IN.) 1 1 1-1/4 1-1/4 1-1/4 2 2 2 2
2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 (1) 1 (1) 2-1/2 (1) 2-1/2 (1) 1-1/4
(1) 2 (1) 2-1/2 2-1/2 (2) 2-1/2 (1) 1 (1) 2 (2) 2-1/2 (1) 1 (3)
2-1/2 (3) 2-1/2 (1) 2 (1) 1 (4) 2-1/2 (1) 1 (4) 2-1/2 (1) 1 (4)
2-1/2 60 PSIG HW NO. OF VALVES REQ'D 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 2 2 2 2 3 3 3 3 OUTLET SIZE (IN.) 1 1 1 1 1 1-1/4 1-1/4 2 2 2 2
2 2 2-1/2 2-1/2 2-1/2 2-1/2 (1) 1 (1) 2-1/2 (1) 2-1/2 (1) 2 (1) 2
(1) 2-1/2 (2) 2-1/2 (1) 1-1/4 (2) 2-1/2 (1) 2 (2) 2-1/2 (1) 2 (2)
2-1/2 (1) 2 (2) 2-1/2 100 PSIG HW NO. OF VALVES REQ'D 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 OUTLET SIZE (IN.) 1 1 1 1 1 1 1
1-1/4 1-1/4 1-1/4 1-1/4 2 2 2 2 2 2-1/2 2-1/2 2-1/2 (1) 1 (1) 2-1/2
(1) 2-1/2 (1) 1-1/4 (1) 2 (1) 2-1/2 (2) 2-1/2 (2) 2-1/2 (2)
2-1/2
Firetube Boilers
125 PSIG HW NO. OF VALVES REQ'D 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 2 2 2 2 2 OUTLET SIZE (IN.) 1 1 1 1 1 1 1 1 1-1/4 1-1/4
1-1/4 1-1/4 1-1/4 2 2 2 2 2-1/2 2-1/2 2-1/2 (1) 1 (1) 2-1/2 (1)
2-1/2 (1) 1-1/4 (1) 2-1/2 (1) 2 (1) 2-1/2 (1) 2 (1) 2-1/2 (1) 2
NOTES: 1.Hot water relief valves are Kunkle #537. 2. BHP
followed by A designates hot water boilers furnished in a smaller
vessel size with additional tubes in the upper portion of the
vessel.
A2-807-02
Firetube Boilers
Model CB Boilers
NOTES
A2-907-02
Model CB Boilers
Firetube Boilers
NOTE: ALLOW 3 FEET FOR DOOR SWING PER NEC
BOILER HP
DIM
15
20
30 LENGTHS
40
50
60
70
80
100
Overall Shell Base Frame Front Head Extension Rear Head
Extension Front Ring Flange to Nozzle - 15 psig Front Ring Flange
to Nozzle - 150 psig Ring Flange to Base
A B C D E F F G
96-5/8 62-5/8 59 18-1/2 15-1/2 36 36 1-13/16
96-5/8 62-5/8 59 18-1/2 15-1/2 36 36 1-13/16
114-5/8 80-5/8 77 18-1/2 15-1/2 45 45 1-13/16
140-5/8 106-5/8 103 18-1/2 15-1/2 57 57 1-13/16
129 92 91 18-1/2 18-1/2 46 46 5/8
129 92 91 18-1/2 18-1/2 46 46 1/2
168 131 130 18-1/2 18-1/2 65-1/2 72-1/2 1/2
168 131 130 18-1/2 18-1/2 65-1/2 72-1/2 1/2
187 150 148 18-1/2 18-1/2 75 82 1/2
WIDTHS Overall ID, Boiler Center to Water Column Center to
Outside Hinge Center to Lagging Center to Auxiliary LWCO Base,
Outside Base, Inside I J K KK L LL M N 61 36 33 22 20 28 28 22 61
36 33 22 20 28 28 22 61 36 33 22 20 28 28 22 61 36 33 22 20 28 28
22 73 48 39 29 27 34 37-5/8 29-5/8 73 48 39 29 27 34 37-3/8 29-5/8
73 48 39 29 27 34 37-3/8 29-5/8 73 48 39 29 27 34 37-3/8 29-5/8 73
48 39 29 27 34 37-3/8 29-5/8
Figure A2-1. Model CB Steam Boiler Dimensions and Weights (15
and 150 psig Design Pressure 15 to 100 hp) Sheet 1 of 2
A2-1007-02
Firetube BoilersBOILER HP DIM 15 20 30 HEIGHTS Base to Steam
Outlet (15 psig only) Overall Base to Vent Outlet Base to Steam
Outlet (150 psig only) Height of Base Base to Bottom of Boiler PL
OO O PH Q R 50-1/4 66 53-1/2 50-1/4 8 12 50-1/4 66 53-1/2 50-1/4 8
12 50-1/4 66 53-1/2 50-1/4 8 12 50-1/4 66 53-1/2 50-1/4 8 12 64-3/4
78-3/4 70 66-31/2 12 16 64-3/4 78-3/4 70 66-1/2 12 16 40 50 60
Model CB Boilers70 80 100
64-3/4 78-3/4 70 66-1/2 12 16
64-3/4 78-3/4 70 66-1/2 12 16
64-3/4 78-3/4 70 64-3/4 12 16
BOILER CONNECTIONS Chemical Feed Feedwater, Right and Left Low
Pressure (15 psig only) Steam Nozzle Drain, Front and Rear High
Pressure (150 psig only) Surface Blowoff, Top CL Steam Nozzle
Blowdown, Front and Rear H S U W T Y W 1 1 4 1 1 1-1/2 1 1 1 4 1 1
1-1/2 1 1 1 4 1 1 2 1 1 1 6A 1-1/4 1 2 1 1 1-1/4 6A 1-1/4 1 3 1-1/4
1 1-1/4 6A 1-1/4 1 3 1-1/4 1 1-1/4 6A 1-1/2 1 3 1-1/4 1 1-1/4 6A
1-1/2 1 3 1-1/4 1 1-1/4 8A 1-1/2 1 4B 1-1/4
VENT STACK Diameter (flgd connection) Front Ring Flange to Vent
CL BB CC 6 4 6 4 8 5 8 5 10 6 10 6 12 7 12 7 12 7
MINIMUM CLEARANCES Rear Door SwingC
DD EE FF GG
44 44 56 46
44 44 56 46
44 44 74 64
44 44 100 90
55 55 84 74
55 55 84 74
55 55 123 113
55 55 123 113
55 55 142 132
Front Door SwingC Tube Removal, Rear Tube Removal, Front
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE
REMOVAL FROM: Rear of Boiler Front of Boiler Thru Window or Doorway
RR RF RD 163 153 151 163 153 151 199 189 169 251 241 195 231 221
202 231 221 202 309 299 241 309 299 241 347 337 260
WEIGHT IN LBS Normal Water Capacity Approx. Ship Wgt - 15 psig
Approx. Ship Wgt - 150 psig Approx. Ship Wgt - 200 psig 1340 3000
3100 3300 1300 3100 3200 3400 1710 3650 3800 4100 2290 4350 4500
4700 3130 6900 7000 7400 2920 7000 7200 7600 4620 8100 8800 9300
4460 8200 9000 9500 5088 9000 9500 10000
NOTES: 1. Air compressor belt driven from blower motor on sizes
15 thru 40 2. Air compressor module on sizes 50 thru 100 hp. 3.
Accompanying dimensions, while sufficiently accurate for layout
purposes, must be confirmed for construction by certified dimension
prints. A. ANSI 150 psig flange. B. ANSI 300 psig flange. C. 15
thru 100 hp standard hinged door.
Figure A2-1. Model CB Steam Boiler Dimensions and Weights (15
and 150 psig Design Pressure 15 to 100 hp) Sheet 2 of 2
A2-1107-02
Model CB Boilers
Firetube Boilers
NOTE: ALLOW 3 FEET FOR DOOR SWING PER NEC
BOILER HP
DIM
125
150
200
250
300
350
400
500
600
700
750
800
LENGTHS Overall Shell Base Frame Front Head Extension Rear Head
Extension Front Ring Flange to Nozzle 15 psig Front Ring Flange to
Nozzle 150 psig Ring Flange to Base A B C D E F F G 174-1/2 125 124
30 19-1/2 62-1/2 55 1/2 199-/12 149 148 31 19-1/2 74-1/2 66 1/2
232-1/2 180 179 33 19-1/2 90 78 1/2 197 144 143 29 24 72 59-1/2 1/2
WIDTHS Overall ID, Boiler Center to Water Column Center to Outside
Hinge Center to Lagging Center to Auxiliary LWCO Base, Outside
Base, Inside I J K KK L LL M N 85 60 45 35 33 40 52-1/2 44-1/2 85
60 45 35 33 40 52-1/2 44-1/2 85 60 45 35 33 40 52-1/2 44-1/2 103 78
54 51 42 49 64-3/8 52-3/8 103 78 54 51 42 49 64-3/8 52-3/8 103 78
54 51 42 49 64-3/8 52-3/8 123 96 64 62 51 59 72 56 123 96 64 62 51
59 72 56 123 96 64 62 51 59 72 56 123 96 64 62 51 59 72 56 123 96
64 62 51 59 72 56 123 96 64 62 51 59 72 56 227 171 170 32 24 85-1/2
73 1/2 257 201 200 32 24 100-1/2 88 1/2 210 152 151 26 32 76 62 1/2
244 186 185 26 32 93 79 1/2 284 222 221 30 32 111 97 1/2 317 255
254 30 32 127-1/2 127-1/2 1/2 319 255 254 32 32 127-1/2 127-1/2 1/2
319 255 254 32 32 127-1/2 127-1/2 1/2
Figure A2-2. Model CB Steam Boiler Dimensions and Weights (15
and 150 psig Design Pressure 125 to 800 hp) Sheet 1 of 2
A2-1207-02
Firetube Boilers
Model CB Boilers
BOILER HP
DIM
125
150
200
250 HEIGHTS
300
350
400
500
600
700
750
800
Base to Steam Outlet (15 psig only) Overall Base to Vent Outlet
Base to Steam Outlet (150 psig only) Davit (Front) Davit (Rear)
Height of Base Base to Bottom of Boiler
PL OO O PH DF DR Q R
77 88 85 77 84-3/4 12 16
77 88 85 77 84-3/4 12 16
77 88 85 77 84-3/4 12 16
96 106 106 96 104 104 10 17
96 106 106 96 104 104 10 17
96 106 106 96 104 104 10 17
116 126 126 116 125 126 12 19
116 126 126 116 125 126 12 19
116 126 126 116 125 126 12 19
116 126 126 116 125 126 12 19
116 126 126 116 125 126 12 19
116 126 126 116 125 126 12 19
BOILER CONNECTIONS Chemical Feed Feedwater, Right and Left Low
Pressure (15 psig only) Steam Nozzle (Note A) Drain, Front and Rear
High Pressure (150 psig only) Surface Blowoff, Top CL Steam Nozzle
(Note B) Blowdown, Front and Rear H S U W T Y W 1 1-1/2 8 1-1/2 1 4
1-1/2 1 1-1/2 8 1-1/2 1 4 1-1/2 1 2 10 2 1 4 1-1/2 1 2 10 2 1 6
1-1/2 1 2 12 2 1 6 1-1/2 1 2-1/2 12 2 1 6 1-1/2 1 2-1/2 12 2 1 6 2
1 2-1/2 12 2 1 8 2 1 2-1/2 12 2 1 8 2 1 2-1/2 12 2 1 8 2 1 2-1/2 12
2 1 8 2 1 2-1/2 12 2 1 8 2
VENT STACK Diameter (flgd. connection) Front Ring Flange to Vent
CL BB CC 16 9 16 9 16 9 20 10-1/2 20 10-1/2 20 10-1/2 24 12-1/2 24
12-1/2 24 12-1/2 24 12-1/2 24 12-1/2 24 12-1/2
MINIMUM CLEARANCES Rear Door Swing Front Door Swing Tube
Removal, Rear Tube Removal, Front DD EE FF GG 32C 67 115 103 32C 67
139 127 32C 67 170 158 43C 89C 131 116 43C 89C 157 142 43C 89C 187
172 53C 108C 135 116 53C 108C 169 151 53C 108C 205 187 53C 108C 238
220 53C 108C 238 220 53C 108C 238 220
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE
REMOVAL FROM: Rear of Boiler Front of Boiler Thru Window or Doorway
RR RF RD 307 260 224 355 308 248 417 370 279 364 303 275 417 356
302 477 416 332 395 322 313 463 390 347 535 462 383 601 528 416 601
528 416 601 528 416
WEIGHT IN LBS Normal Water Capacity Approx. Ship Wgt - 15 psig
Approx. Ship Wgt - 150 psig Approx. Ship Wgt - 200 psig 5750 12200
12800 13400 7250 12900 13800 14500 8625 15200 16300 17100 10670
21800 23400 25200 13000 24000 26000 28000 15465 27300 28500 30000
15340 33500 36500 38300 19300 38400 41400 44000 23425 44000 47000
50500 27790 51400 54100 57700 27790 51400 54100 57700 27790 51400
54100 57700
NOTES: 1. Air compressor belt driven from blower motor on sizes
125 thru 350 hp. 2. Control Panel relocation on boilers 250 hp and
up. 3. Air compressor module on sizes 400 thru 800 hp. 4.
Accompanying dimensions, while sufficiently accurate for layout
purposes, must be confirmed for construction by certified dimension
prints. A. ANSI 150 psig flange. B. ANSI 300 psig flange. C. Davit
equipped, standard, 125 - 800 hp (rear door). D. Davit equipped,
standard, 250- 800 hp (front door)
Figure A2-2. Model CB Steam Boiler Dimensions and Weights (15
and 150 psig Design Pressure 125 to 800 hp) Sheet 2 of 2
A2-1307-02
Model CB Boilers
Firetube Boilers
LWCO
NOTE: ALLOW 3 FEET FOR DOOR SWING PER NEC
BOILER HP
DIM
15
20
30 LENGTHS
40
50
60
70
80/ 100A
100/ 125A
Overall Shell Base Frame Front Head Ext. Rear Head Ext. Front
Ring Flange to Return Front Ring Flange to Outlet Ring Flange to
Base
A B C D E F G H
97 62-5/8 59 18-1/2 15-1/2 43-5/8 55-1/8 1-13/16
97 62-5/8 59 18-1/2 15-1/2 43-5/8 55-1/8 1-13/16
114-5/8 80-5/8 77 18-1/2 15-1/2 62 73-1/8 1-13/16
140-5/8 106-5/8 103 18-1/2 15-1/2 81 98-1/2 1-13/16
129 92 91 18-1/2 18-1/2 69 84-5/8 5/8
129 92 91 18-1/2 18-1/2 69 84-5/8 5/8
168 131 130 18-1/2 18-1/2 108 123-5/8 5/8
168 131 130 18-1/2 18-1/2 108 123-5/8 5/8
187 150 148 18-1/2 18-1/2 127 142-5/8 1
WIDTHS Overall ID, Boiler Center to Entrance Box Center to
Outside Hinge Center to Lagging Base, Outside Base, Inside I J K KK
L M N 48-3/4 36 28-3/4 22 20 28 22 48-3/4 36 28-3/4 22 20 28 22
48-3/4 36 28-3/4 22 20 28 22 48-3/4 36 28-3/4 22 20 28 22 63 48 36
29 27 37-5/8 29-5/8 63 48 36 29 27 37-5/8 29-5/8 63 48 36 29 27
37-5/8 29-5/8 63 48 36 29 27 37-5/8 29-5/8 63 48 36 29 27 37-5/8
29-5/8
Figure A2-3. Model CB Hot Water Boiler Dimensions (30 psig and
125 psig Design Pressure 15 to 100 hp) - Sheet 1 of 2
A2-1407-02
Firetube Boilers
Model CB Boilers
BOILER HP
DIM
15
20
30 HEIGHTS
40
50
60
70
80/ 100A
100/ 125A
Overall Base to Vent Outlet Base to Return and outlet Davit
(Front) Davit (Rear) Height of Base Base to bottom of boiler
OO O P DF DR Q R
66 53-1/2 50 8 12
66 53-1/2 50 8 12
66 53-1/2 50 8 12
66 53-1/2 50 8 12
72-5/8 70 67 12 16
72-5/8 70 67 12 16
72-5/8 70 67 12 16
72-5/8 70 67 12 16
72-5/8 70 67 12 16
BOILER CONNECTION Waterfill Conn. Right & Left Water Return
- Threaded Water Outlet - ThreadedA Air Vent Drain, Front and Rear
Auxiliary Connection S T U v W X 1 2-1/2 2-1/2 1 1 1 1 2-1/2 2-1/2
1 1 1 1 3 3 1 1 1 1 3 3 1 1-1/4 1 1-1/4 4 4 1-1/4 1-1/4 1 1-1/4 4 4
1-1/4 1-1/4 1 1-1/4 4 4 1-1/4 1-1/2 1 1-1/4 4 4 1-1/4 1-1/2 1 1-1/4
4 4 1-1/4 1-1/2 1
VENT STACK Diameter (flgd. connection) Front Ring Flange to vent
CL BB CC 6 4 6 4 8 5 8 5 10 6 10 6 12 7 12 7 12 7
MINIMUM CLEARANCES Rear Door Swing Front Door Swing Tube
Removal, Rear Tube, Removal, Front DD EE FF GG 44 44 56 46 44 44 56
46 44 44 74 64 44 44 100 90 55 55 84 74 55 55 84 74 55 55 123 113
55 55 123 113 55 55 142 132
MINIMUM BOLER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE
REMOVAL FROM: Rear of Boiler Front of Boiler Thru Window or Doorway
RR RF RD 163 153 151 163 153 151 199 189 169 251 241 195 231 221
202 231 221 202 309 299 241 309 299 241 347 337 260
WEIGHT IN LBS Water Capacity Flooded Approx. Ship. Wgt. 30 psig
Approx. Ship. Wgt. 125 psig 1500 3000 3300 1460 3100 3400 1915 3650
3880 2585 4350 4580 3665 6800 7100 3500 7000 7300 5420 8000 8350
5250 8100 8450 5960 8800 9150
NOTES: 1. Accompanying dimensions and ratings while sufficiently
accurate for layout purposes, must be confirmed for construction by
certified dimension prints. 2. Air compressor belt driven from
blower motor on sizes 15 thru 40 hp. 3. Air compressor module on
sizes 50 thru 100 hp. 4. 15 - 100 hp, hinged door standard. 5. Add
370lbs to the 80 hp ship weight for 100A and 485 lbs to the 100 hp
ship weight for the 125A. A. Dip Tube included.
Figure A2-3. Model CB Hot Water Boiler Dimensions (30 psig
Design Pressure 15 to 100 hp) - Sheet 2 of 2 A2-1507-02
Model CB Boilers
Firetube Boilers
LWCO
NOTE: ALLOW 3 FEET FOR DOOR SWING PER NEC
A
BOILER HP
DIM
125
150/ 175A
200
250
300
350
400
500
600
700
750
800
LENGTHS Overall Shell Base Frame Front Head Extension Rear Head
Extension Front Ring Flange to Return Front Ring Flange to Outlet
Ring Flange to Base A B C D E F G H 174-1/2 199-1/2 232-1/2 125 124
30 19-1/2 91 114 1/2 149 148 31 19-1/2 102 136 1/2 180 179 33
19-1/2 131 167 1/2 197 144 143 29 24 227 171 170 32 24 257 201 200
32 24 210 152 151 26 32 244 186 185 26 32 139 170 1/2 284 222 221
30 32 175 206 1/2 317 255 254 30 32 207 239 1/2 319 255 254 32 32
207 239 1/2 319 255 254 32 32 207 239 1/2
104-1/2 131-1/2 161-1/2 111-1/2 131 1/2 WIDTHS 158 1/2 188 1/2
146 1/2
Overall ID, Boiler Center to Entrance Box Center to Outside
Hinge Center to Lagging Base, Outside Base, Inside
I J K KK L M N
75-1/2 60 42-1/2 35 33 52-1/2 44-1/2
75-1/2 60 42-1/2 35 33 52-1/2 44-1/2
75-1/2 60 42-1/2 35 33 52-1/2 44-1/2
93 78 51 51 42 64-3/8 52-3/8
93 78 51 51 42 64-3/8 52-3/8
93 78 51 51 42 64-3/8 52-3/8
113 96 62 62 51 72 56
113 96 62 62 51 72 56
113 96 62 62 51 72 56
113 96 62 62 51 72 56
113 96 62 62 51 72 56
113 96 62 62 51 72 56
Figure A2-4. Model CB Hot Water Boiler Dimensions (30 psig
Design Pressure - 125 - 800 hp) - Sheet 1 of 2
A2-1607-02
Firetube Boilers
Model CB Boilers
BOILER HP
DIM
125
150/ 175A
200
250 HEIGHTS
300
350
400
500
600
700
750
800
Overall Base to Vent Outlet Base to Return and Outlet Davit
(Front) Davit (Rear) Height of Base Base to Bottom of Boiler
OO O P DF DR Q R
88 85 77 84-3/4 12 16
88 85 77 84-3/4 12 16
88 85 77 84-3/4 12 16
106 106 96 104 104 10 17
106 106 96 104 104 10 17
106 106 96 104 104 10 17
126 126 116 125 126 12 19
126 126 116 125 126 12 19
126 126 116 125 126 12 19
126 126 116 125 126 12 19
126 126 116 125 126 12 19
126 126 116 125 126 12 19
BOILER CONNECTION Waterfill Conn. Right & Left Water Return
FlangeA Water Outlet Flange Air Vent Drain, Front and Rear
Auxiliary Connection S T U V W X 1-1/2 6 6 1-1/2 1-1/2 1 1-1/2 6 6
1-1/2 1-1/2 1 2 6 6 1-1/2 2 1 2 8 8 1-1/2 2 1-1/4 VENT STACK
Diameter (flgd. connection) Front Ring Flange to vent CL BB CC 16 9
16 9 16 9 20 10-1/2 20 10-1/2 20 10-1/2 24 12-1/2 24 12-1/2 24
12-1/2 24 12-1/2 24 12-1/2 24 12-1/2 2 8 8 1-1/2 2 1-1/4 2-1/2 8 8
1-1/2 2 1-1/4 2-1/2 10 10 2 2 1-1/4 2-1/2 10 10 2 2 1-1/4 2-1/2 12
12 2 2 1-1/4 2-1/2 12 12 2 2 1-1/4 2-1/2 12 12 2 2 1-1/4 2-1/2 12
12 2 2 1-1/4
MINIMUM CLEARANCES Rear Door Swing Front Door Swing Tube
Removal, Rear Tube, Removal, Front DD EE FF GG 32B 67 115 103 32B
67 139 127 32B 67 170 158 43B 89B 131 116 43B 89B 157 142 43B 89B
187 172 53B 108B 135 117 53B 108B 169 151 53B 108B 205 187 53B 108B
238 220 53B 108B 238 220 53B 108B 238 220
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE
REMOVAL FROM: Rear of Boiler Front of Boiler Thru Window or Doorway
RR RF RD 307 260 224 355 308 248 417 370 279 364 303 275 417 356
302 477 416 332 395 322 313 463 390 347 535 462 383 601 528 416 601
528 416 601 528 416
WEIGHT IN LBS Water Capacity Flooded Approx. Ship. Wgt. 30 psig
Approx. Ship. Wgt. 125 psig 7670 12100 12500 9295 12800 13200 11130
15100 15500 13880 21700 22500 16840 23900 24700 20090 27200 28000
20630 33400 34400 25925 38300 39300 31510 43900 44900 36600 51300
52300 36600 51300 52300 36600 51300 52300
NOTES: 1. Accompanying dimensions and ratings while sufficiently
accurate for layout purposes, must be confirmed for construction by
certified dimension prints. 2. Control panel relocated on boilers
250 hp and up. 3. Air compressor belt driven from blower motor on
sizes 125 thru 350 hp. 4. Air compressor module on sizes 400 thru
800 hp. 5. Davited front doors are standard on 250 - 800 hp. 6. Add
480 lbs to the 150 hp ship weight for 175A. A. Dip Tube included.
B. Davited rear doors are standard on 125 - 800 hp units.
Figure A2-4. Model CB Hot Water Boiler Dimensions (30 psig
Design Pressure - 125 - 800 hp) - Sheet 2 of 2
A2-1707-02
Model CB Boilers
Firetube Boilers
DIMENSION (INCHES) BOILER HP A 15 - 40, 50A 50 - 100, 100A, 125A
125 - 200, 175A 250 - 350 400 - 800 20 27 33 42 51 B 36 48 55 69 88
C 28 38 45 58 71 D 45 60 68 86 109 E 20 26 32 43 53 PLAN VIEW
NOTE: 1. Dimensions in inches. 2. 15 - 100 hp (100A & 125A)
boilers are standardly equipped with hinges. Davit available as an
option.
Figure A2-5. Space Required to Open Rear Head on Model CB
Boilers Equipped with Davits
Figure A2-6. Lifting Lug Location, Model CB Boilers - Sheet 1 of
2
A2-1807-02
Firetube BoilersBOILER HP 15 Steam Hot Water 20 Steam Hot Water
25 Steam Hot Water 30 Steam Hot Water 40 Steam Hot Water 50A Water
50 60 70 80 100 100A 125A 125 150 175A 200 250 All All All All All
Hot Water Hot Water All All Hot Water All Steam Hot Water 300 Steam
Hot Water 350 Steam Hot Water 400 Steam Hot Water 500 Steam Hot
Water 600 Steam Hot Water 700 Steam Hot Water 750 Steam Hot Water
800 Steam Hot Water B B B B B B B B B A B B B B B B B B B B B B B B
B B B B B B 50-1/2 68 68 68 68 68 68 68 80-1/4 80-1/4 80-1/4 80-1/4
99 99 99 99 99 99 119 119 119 119 119 119 119 119 119 119 119 119
12 18 18 27 27 27 27 27 29-3/4 29-3/4 29-3/4 29-3/4 36 36 36 36 36
36 34-1/2 34-1/2 34-1/2 34-1/2 34-1/2 34-1/2 34-1/2 34-1/2 34-1/2
34-1/2 34-1/2 34-1/2 82-3/4 57 57 67 67 86 67 100 70-1/2 83-1/2
83-1/2 114-1/2 72 72 99 99 129 129 83 83 117 117 153 153 186 186
186 186 186 186 VIEW A B A B A B A B A B ALL DIMENSIONS IN INCHES A
51-3/4 50-1/2 51-3/4 50-1/2 51-3/4 50-1/2 51-3/4 50-1/2 51-3/4
50-1/2 B 12 12 12 12 12 12 12 12 12 12 C 38-3/4 38-3/4 38-3/4
38-3/4 56-3/4 56-3/4 56-3/4 56-3/4 82-3/4 82-3/4
Model CB Boilers
D 6 6 6 6 6
E 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2
2-1/2
6 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 11 11 11
11 11 11 11 11 11 11 11
2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2
2-1/2 2-1/2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
NOTE: 1. A, B and C Dimensions may vary by 1/2 inch. 2. BHP
followed by A designates hot water boilers furnished in a smaller
vessel size with additional tubes in upper portion of vessel.
Figure A2-6. Lifting Lug Location, Model CB Boilers - Sheet 2 of
2
A2-1907-02
Model CB Boilers
Firetube Boilers
BOILER HP 15-20 25-30 40-50A 50-60 70-80, 100A 100, 125A 125
150, 175A 200 250 300 350 400 500 600 700-750-800
A 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6
B 8 8 8 8 8 8 9 9 9 12 12 12 14 14 14 14
C 59 77 103 91 130 148 124 148 179 143 170 200 151 185 221
254
D 17 17 17 26 26 26 39-1/2 39-1/2 39-1/2 46 46 46 50 50 50
50
E 33 33 33 42 42 42 57-1/2 57-1/2 57-1/2 70 70 70 78 78 78
78
F 3 3 3 4 4 4 4 4 4 6 6 6 8 8 8 8
G 22 22 22 29-5/8 29-5/8 29-5/8 44-1/2 44-1/2 44-1/2 52-3/8
52-3/8 52-3/8 56 56 56 56
X 9-3/4 9-3/4 9-3/4 8-1/4 8-1/4 8-1/4 10-1/4 10-1/4 10-1/4
22-1/2 22-1/2 22-1/2 24-1/2 24-1/2 24-1/2 24-1/2
NOTE: 1. All numbers in table are in inches. 2. 6-inch high
mounting piers recommended for use beneath the boiler base frame.
The use of these piers provides increased inspection accessibility
to the piping beneath the boiler and added height for washing down
the area beneath the boiler.
Figure A2-7. Model CB Boiler Mounting Piers
A2-2007-02
Firetube Boilers
Model CB Boilers4. Any efciency verication testing will be based
on the stack loss method. When specifying the efciencies in the
tables, be sure to include the specic guarantee conditions to
maximize the effectiveness of your efciency specication. If you
have any questions regarding the efciency specications, please
contact your local Cleaver-Brooks authorized representative. For
efciencies and stack temperatures at operating pressures not
listed, follow these procedures: When the operating steam pressure
is between 10 psig and 125 psig, interpolate the values from the
efciency tables. When the operating steam pressure is above 125
psig, estimated efciency can be calculated as follows: Example:
Boiler: 350 hp. Fuel: natural gas. Operating steam pressure: 200
psig. Find the fuel-to-steam efciency at 100% ring rate. From Table
A2-8 for a 350 hp boiler operating at 100% ring rate and an
operating steam pressure of 125 psig, the efciency is 82.5%. Using
Figure A2-8, note that the stack temperature increases 36 F at the
higher operating pressure. To estimate boiler efciency, use this
rule of thumb: For every 40 F increase in stack temperature,
efciency decreases by 1%. Since the stack temperature rise is 36 F,
the decrease in the boiler efciency at 200 psig operating pressure
is calculated as follows: 36/40 = .9%. Therefore, the boiler
efciency at 200 psig operating pressure is 82.5 - .9 = 81.6%.
PERFORMANCE DATAEfficiencyTables A2-7, A2-8, A2-9, A2-10, A2-11,
and A2-12 show predicted fuel-to-steam efciencies (including
radiation and convection losses) for Cleaver-Brooks Model CB
Firetube boilers. For specic efciencies on retube boiler offerings
not listed here, contact your local Cleaver-Brooks authorized
representative. Cleaver-Brooks offers an industry leading
fuel-to-steam boiler efciency guarantee for Model CB Firetube
Boilers. The guarantee is based on the fuel-to-steam efciencies
shown in the efciency tables and the following conditions. The
efciency percent number is only meaningful if the specic conditions
of the efciency calculations are clearly stated in the specication
(see Cleaver-Brooks publication CB-7768 for a detailed description
of efciency calculations). The boiler manufacturer shall guarantee
that, at the time of startup, the boiler will achieve fuel-to-steam
efciency (as shown in the tables listed above) at 100% ring rate
(add efciency guarantees at 25%, 50%, and 75% of rating, if
required). If the boiler(s) fail to achieve the corresponding
guaranteed efciency as published, the boiler manufacturer will
rebate, to the ultimate boiler owner, ve thousand dollars ($5,000)
for every full efciency point (1.0%) that the actual efciency is
below the guaranteed level. The specied boiler efciency is based on
the following conditions. 1. Fuel specication used to determine
boiler efciency: Natural Gas Carbon, % (wt) = 69.98 Hydrogen, %
(wt) = 22.31 Sulfur, % (wt) = 0.0 Heating value, Btu/lb = 21,830
No. 2 Oil Carbon, % (wt) = 85.8 Hydrogen, % (wt) = 12.7 Sulfur, %
(wt) = 0.2 Heating value, Btu/lb = 19,420 No. 6 Oil Carbon, % (wt)
= 86.6 Hydrogen, % (wt) = 10.9 Sulfur, % (wt) = 2.09 Heating value,
Btu/lb = 18,830 2. Efciencies are based on ambient air temperature
of 80 F, relative humidity of 30%, and 15% excess air in the
exhaust ue gas. 3. Efciencies are based on manufacturers published
radiation and convection losses. (For Cleaver-Brooks radiation and
convection losses, see Boiler Efciency Facts Guide, publication
number CB-7767).
EmissionsThe emission data included in this section consists of
typical uncontrolled emission levels for Cleaver-Brooks Model CB
Firetube Boilers. Cleaver-Brooks Firetube boilers are available
with the standard burner package for Model CB, or optional internal
ue gas recirculation on Model CB (LE) (refer to Section A3). The
Cleaver-Brooks IFGR packages are integrated boiler/ burner/control
packages designed specically for CleaverBrooks boilers. For
detailed information on Cleaver-Brooks IFGR packages, refer to
Model CB (LE) in Section A3.
NOTICEThe data in Table A2-13 represents typical emission levels
only. Guaranteed emission levels are available from your local
Cleaver-Brooks authorized representative.
A2-2107-02
Model CB BoilersTable A2-7. Predicted Fuel-to-Steam Efciencies
(%), Model CB Boilers - 10 psig, Natural GasBOILER HP 50 60 70 80
100 125 150 200 250 300 350 400 500 600 700 750 800 FIRING RATE (%)
25 83.0 82.9 84.5 84.6 84.4 83.3 84.4 85.0 85.0 85.3 85.3 84.5 85.5
85.7 85.7 85.8 85.8 50 83.2 83.1 84.7 84.8 85.0 83.6 84.6 85.3 84.7
85.3 85.7 84.7 85.7 86.0 86.2 86.1 86.1 75 82.9 82.7 84.3 84.5 84.8
83.4 84.5 85.1 84.0 84.6 85.2 84.6 85.5 85.8 86.0 85.9 85.9 100
82.4 82.3 83.9 84.0 84.4 83.2 84.3 84.9 83.3 83.9 84.5 84.4 85.2
85.6 85.7 85.6 85.6
Firetube BoilersTable A2-9. Predicted Fuel-to-Steam Efciencies
(%), Model CB Boilers - 10 psig, No. 6 OilBOILER HP 50 60 70 80 100
125 150 200 250 300 350 400 500 600 700 750 800 FIRING RATE (%) 25
86.8 86.7 88.4 88.5 88.2 87.2 88.4 88.9 88.8 89.1 89.1 88.4 89.4
89.5 89.6 89.7 89.7 50 87.0 86.9 88.6 88.7 88.5 87.4 88.5 89.2 88.5
89.2 89.5 88.5 89.5 89.9 90.0 90.0 90.0 75 86.6 86.5 88.2 88.3 88.3
87.2 88.3 88.9 87.8 88.4 89.0 88.4 89.3 89.7 89.8 89.8 89.8 100
86.1 86.0 87.7 87.8 88.0 87.0 88.1 88.7 87.1 87.7 88.4 88.1 89.2
88.4 89.6 89.5 89.5
Table A2-8. Predicted Fuel-to-Steam Efciencies (%), Model CB
Boilers - 125 psig, Natural GasBOILER HP 50 60 70 80 100 125 150
200 250 300 350 400 500 600 700 750 800 FIRING RATE (%) 25 80.2
80.1 81.7 81.8 81.5 80.4 81.5 82.2 82.0 82.6 82.6 81.8 82.8 82.9
83.0 83.1 83.1 50 80.5 80.4 82.0 82.1 82.4 80.9 82.0 82.7 82.0 82.7
83.2 82.2 83.2 83.5 83.6 83.6 83.6 75 80.4 80.3 81.9 82.0 82.3 81.0
82.0 82.7 81.6 82.2 82.8 82.4 83.3 83.6 83.6 83.7 83.7 100 80.1
80.1 81.7 81.8 82.2 81.0 82.1 82.7 81.3 81.9 82.5 82.2 83.1 83.5
83.6 83.5 83.5
Table A2-10. Predicted Fuel-to-Steam Efciencies (%), Model CB
Boilers - 125 psig, No 6 OilBOILER HP 50 60 70 80 100 125 150 200
250 300 350 400 500 600 700 750 800 FIRING RATE (%) 25 83.9 83.8
85.5 85.6 84.6 84.1 85.3 86.0 85.8 86.3 86.4 85.5 86.5 86.7 86.8
86.9 86.9 50 84.2 84.1 85.8 85.9 85.8 84.6 85.8 86.5 85.7 86.4 87.0
85.9 86.9 87.3 87.3 87.4 87.4 75 84.0 83.9 85.6 85.7 85.9 84.7 85.8
86.4 85.3 86.0 86.6 86.0 87.0 87.4 87.4 87.5 87.5 100 83.8 83.8
85.4 85.6 85.8 84.8 85.8 86.5 85.0 85.6 86.2 85.9 86.9 87.2 87.4
87.3 87.3
A2-2207-02
Firetube BoilersTable A2-11. Predicted Fuel-to-Steam Efciencies
(%), Model CB Boilers - 10 psig, No. 2 OilBOILER HP 50 60 70 80 100
125 150 200 250 300 350 400 500 600 700 750 800 FIRING RATE (%) 25
86.5 86.3 87.9 88.1 87.8 86.7 87.8 88.4 88.3 88.6 88.6 87.9 88.9
89.0 89.1 89.2 89.2 50 86.7 86.6 88.2 88.3 88.4 86.9 88.0 88.7 88.1
88.7 89.0 88.1 89.0 89.4 89.5 89.5 89.5 75 86.3 86.2 87.8 87.9 88.1
86.7 87.8 88.4 87.4 88.0 88.5 87.9 88.9 89.2 89.3 89.3 89.3 100
85.8 85.7 87.3 87.4 87.7 86.6 87.6 88.2 86.7 87.3 87.8 87.6 88.6
89.0 89.1 89.0 89.0
Model CB BoilersTable A2-12. Predicted Fuel-to-Steam Efciencies
(%), Model CB Boilers - 125 psig, No. 2 OilBOILER HP 50 60 70 80
100 125 150 200 250 300 350 400 500 600 700 750 800 FIRING RATE (%)
25 83.6 83.5 85.1 85.2 84.8 83.7 84.8 85.6 85.3 85.9 85.9 85.1 86.1
86.2 86.3 86.4 86.4 50 84.0 83.8 85.4 85.6 85.7 84.2 85.3 86.0 85.3
86.0 86.6 85.5 86.5 86.8 86.9 86.9 86.9 75 83.8 83.7 85.3 85.4 85.6
84.3 85.3 86.0 84.9 85.5 86.1 85.6 86.6 86.9 87.0 87.0 87.0 100
83.5 83.5 85.1 85.3 85.5 84.3 85.4 86.0 84.7 85.2 85.8 85.5 86.4
86.8 86.9 86.8 86.8
Figure A2-8. Predicted Stack Temperature Increase for Pressure
Greater Than 125 psig
A2-2307-02
Model CB BoilersTable A2-13. Model CB Boiler Emission Data
Firetube Boilers
ESTIMATED LEVELS - UNCONTROLLED POLLUTANT NATURAL GAS CO ppmA
Lb/MMBtu ppmA Lb/MMBtu ppmA Lb/MMbtu ppmA Lb/MMBtu ppmA Lb/MMBtu
200 0.15 100 0.12 1 0.001 40 0.016 0.01 NO. 2 OILB 90 0.07 185 0.25
278 0.52 50 0.025 0.025 NO. 6 OILC 95 0.075 502 0.67 278 0.52 70
0.035 0.160
NOx
SOx
HC/VOCs
PM
NOTES: Refer to Section E for detailed emission information. A.
ppm levels corrected to 3% O2, dry basis. B. Based on fuel
constituent levels of: Fuel-bound nitrogen content = 0.05% by
weight Sulfur content = 0.5% by weight Ash content = 0.01% by
weight C. Based on fuel constituent levels of: Fuel-bound nitrogen
content = 0.7% by weight Sulfur content = 0.5% by weight Ash
content = 0.1% by weight Conradson carbon residue = 16% by
weight
ENGINEERING DATAThe following engineering information is
provided for Model CB Firetube Boilers. Additional detail is
available from your local Cleaver-Brooks authorized representative.
Refer to Tables A2-14 through A2-18.
Table A2-14. Heating Surface, Model CB BoilersBOILER HP 15 20 25
HEATING SURFACE (SQ-FT) FIRESIDE 75 100 125 150 200 250 300 350 400
500 625 750 1000 1250 1500 1750 2000 2500 3000 3500 3500 3500
WATERSIDE 85 109 144 162 219 266 323 388 441 544 679 820 1092 1346
1623 1932 2151 2691 3262 3810 3810 3810
Blowdown Water RequirementsSome local codes require blowdown
tanks to be constructed in accordance with recommendations of the
National Board of Boiler and Pressure Vessel Inspectors. The
National Boards recommendations base the size of the blowdown tank
on the removal of at least 4 inches of water from the boiler. Table
A2-19 lists the approximate quantity of water represented by 4
inches of water at normal operating level for Cleaver-Brooks Model
CB Boilers.
30 40 50 60 70 80 100 125 150 200 250 300 350 400 500 600 700
750 800
A2-2407-02
Firetube BoilersTable A2-15. Steam Volume and Disengaging
AreaSTEAM VOLUME CU-FT BOILER HP 15 20 25 & 30 40 50 60 70 80
100 125 150 200 250 300 350 400 500 600 700-750-800 NOTE: Based on
normal water level. A. Based on 150 psig design pressure. B. Based
on 15 psig design pressure. 2.9 2.9 3.9 5.3 9.7 9.7 14.3 14.3 16.6
25.4 30.7 37.7 49.2 59.5 70.9 75.8 95.0 115.4 134.0 HIGH
PRESSUREA
Model CB BoilersSTEAM RELIEVING AREA, SQ-INB
LOW PRESSURE 5.9 5.9 7.9 10.8 16.0 16.0 23.7 23.7 27.4 36.6 44.3
54.4 70.6 85.3 101.7 102.5 128.5 156.1 181.3
HIGH PRESSUREA 1356 1356 1817 2485 2959 2959 4367 4367 5053 5371
6511 7985 7980 9651 11507 10148 12722 15448 17948
LOW PRESSUREB 1637 1637 2195 2999 3372 3372 4975 4975 5757 5887
7138 8752 8695 10516 12538 10960 13740 16685 19385
Table A2-16. Water Circulation Rate and Temperature Drop for Hot
Water BoilerBOILER HP 15 20 30 40 50 60 70 80 100 & 100A 125
&125A 150 175A 200 250 300 350 400 500 600 700 750 800 BOILER
OUTPUT (1000) BTU/HR 500 670 1005 1340 1675 2010 2345 2680 3350
4185 5025 5858 6695 8370 10045 11720 13400 16740 20080 23450 25106
26780 SYSTEM TEMPERATURE DROP - DEGREES F 10 20 30 40 50 60 70 80
90 100
MAXIMUM CIRCULATING RATE - GPM 100 134 200 268 335 402 470 536
670 836 1005 1172 1340 1675 2010 2350 2680 3350 4020 4690 5025 5360
50 67 100 134 168 201 235 268 335 418 503 586 670 838 1005 1175
1340 1675 2010 2345 2510 2680 33 45 67 89 112 134 157 179 223 279
335 391 447 558 670 784 895 1120 1340 1565 1675 1785 25 33 50 67 84
101 118 134 168 209 251 293 335 419 503 587 670 838 1005 1175 1255
1340 20 27 40 54 67 80 94 107 134 168 201 234 268 335 402 470 535
670 805 940 955 1075 17 22 33 45 56 67 78 90 112 140 168 195 224
280 335 392 447 558 670 785 840 895 14 19 29 38 48 58 67 77 96 120
144 167 192 240 287 336 383 479 575 670 720 765 12 17 25 33 42 50
59 67 84 105 126 147 168 210 251 294 335 419 502 585 625 670 11 15
22 30 37 45 52 60 75 93 112 130 149 186 223 261 298 372 448 520 555
595 10 13 20 27 33 40 47 54 67 84 100 117 134 167 201 236 268 335
402 470 500 535
NOTES: 1. Minimum recommended return water temperature is 150 F.
Minimum recommended outlet temperature for Model CB Hot Water
Boilers is 170 F. Contact your local Cleaver-Brooks authorized
representative for special hot water application information. 2.
See Section H2 for over-pressure requirements.
A2-2507-02
Model CB Boilers
Firetube Boilers
Table A2-17. Recommended Steam Nozzle Size (To Maintain 4000 to
5000 fpm Nozzle Velocity)BOILER HP OPERATING PRESSURE PSIG 15 30 40
50 75 100 125 150 200 250 15 4 2 2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 20 4
2 2 2 2 1.5 1.5 1.5 1.5 1.5 25 4 2.5 2.5 2 2 2 2 2 2 2 30 4 2.5 2.5
2.5 2 2 2 2 2 2 40 6 3 3 2.5 2.5 2 2 2 2 2 50 6 4 3 3 3 3 3 2.5 2.5
2 60 6 4 4 3 3 3 3 2.5 2.5 2 70 6 4 4 4 3 3 3 2.5 2.5 2 80 6 4 4 4
4 3 3 2.5 2.5 2 100 8 6 6 4 4 4 4 2.5 2.5 2 125 8 6 6 6 4 4 4 3 2.5
2.5 150 8 6 6 6 4 4 4 3 3 2.5 200 10 8 6 6 6 6 4 4 4 3 250 10 8 8 6
6 6 6 4 4 4 300 12 8 8 8 6 6 6 6 4 4 350 12 10 8 8 8 6 6 6 4 4 400
12 10 10 8 8 6 6 6 6 4 500 12 10 10 8 8 8 8 6 6 6 600 12 12 10 10 8
8 8 6 6 6 700 12 12 12 10 10 8 8 8 6 6 750 12 12 12 12 10 8 8 8 6 6
800 12 12 12 12 10 10 8 8 6 6
NOTES: 1. Steam nozzle sizes given in inches. 2. Recommended
steam nozzle sizes based on 4000 to 5000 fpm steam velocity. Spool
pieces (300 lb flanges) are available in the following sizes (in
inches): 3x21/2x30, 4x3x30, 6x4x36, 8x6x48, 10x8x48, and 12x8x48.
3. All standard steam nozzle sizes for 150 psig design pressure or
greater are the same as 125 psig operating pressure on the above
table. To increase or decrease the standard size, request the
change with your local Cleaver-Brooks authorized
representative.
Table A2-18. Recommended Non-Return Valve SizeBOILER HP 100 125
150 200 250 300 350 400 500 600 700 750 800 BOILER CAPACITY
(LBS/HR) 3450 4313 5175 6900 8625 10350 12025 13800 17210 20700
24150 25875 27600 OPERATING PRESSURES (PSIG) 50 3 4 4 4 4 6 6 6 6 8
8 8 8 75 2-1/2 3 4 4 4 4 6 6 6 8 8 8 8 100 2-1/2 3 3 4 4 4 4 4 6 6
6 6 6 125 2-1/2 3 3 3 4 4 4 4 6 6 6 6 6 150 2-1/2 3 3 3 3 4 4 4 4 6
6 6 6 175 2-1/2 2-1/2 3 3 3 4 4 4 4 4 6 6 6 200 2-1/2 2-1/2 2-1/2 3
3 4 4 4 4 4 6 6 6 250 2-1/2 2-1/2 2-1/2 3 3 3 3 4 4 4 6 6 6
Note: Valve sizes (300 psig flanges) given in inches.
A2-2607-02
Firetube BoilersTable A2-19. Model CB Blowdown Tank Sizing
InformationBOILER HP 15-20 25-30 40 50-60 70-80 100 125 150 200 250
300 350 400 500 600 700-750 800 WATER (GAL.) 26 34 47 55 80 93 97
118 145 146 176 210 183 230 280 325 325
Model CB BoilersSound LevelTable A2-20 summarizes predicted
sound pressure levels for Model CB Boilers. Tables A2-21 through
A2-25 give detailed octave band sound pressure levels for each
boiler. These values are based on standard motors. Optional motor
types and altitude conditions can increase sound levels. Units The
units for the sound level tables are dBA (decibels, measured on the
A-weighted scale) in reference to 0.0002 microbars (20
micro-Newtons per square meter). They are standardly referenced in
specifying and reporting sound pressure levels on industrial
equipment. Test Method The sound pressure levels in the above
tables were obtained from tests in accordance with the "ABMA Test
Code for the Measurement of Sound from Packages Boilers." In
accordance with this code, the sound pressure levels reported were
measured on the boiler centerline 4-1/2 feet vertically above the
bottom of the base rails and 3 feet horizontally in front of the
end of the blower motor or front surface of the electrical cabinet.
Sound Level Meter The sound level meter used complies with ANSI
S1.4, Type 1 (Precision). The readings are taken with the meter set
for slow response.
NOTE: Quantity of water removed from boiler by lowering normal
water line 4".
Table A2-20. Sound Pressure Level Summary (50 - 800 hp)BOILER HP
HFO, dBA LFO, dBA HFG, dBA LFG, dBA 50 79 78 77 72 60 79 78 77 73
70 79 78 78 74 80 79 78 78 75 100 81 79 78 75 125A 82 79 79 75 125
83 81 81 78 150 83 82 80 77 200 83 81 82 78 250 88 86 84 81 300 88
86 86 82 350 89 85 86 83 400 83 80 82 80 500 83 82 82 81 600 83 82
82 81 700 85 82 85 82 750 87 83 86 83 800 88 84 87 84
NOTES: 1. Boiler No. followed by an a designates hot water
boilers furnished in a smaller vessel size with additional tubes in
the upper portion of the vessel. 2. Sound Pressure levels measured
on boilers operating in various locations and expressed in dBA are
as follows:
ABBREVIATIONS: HF = High Fire LF = Low Fire O = Oil G = Gas
Table A2-21. Model CB Boiler Sound Pressure Level Details (40
hp)FIRING RATE FUEL SOUND LEVEL dBA OCTAVE BAND SOUND PRESSURE
LEVELS IN dB RE .0002 MICROBAR 31Hz 63Hz 125Hz 250Hz A 40HP LFG LFO
HFG HFO NOTE: ABBREVIATIONS: HF = High Fire 76 77 79 79 73 73 81 72
LF = Low Fire O = Oil G = Gas 75 75 78 77 72 75 74 77 74 76 80 81
76 75 78 78 70 72 71 73 67 67 69 69 68 66 68 66 64 66 64 66 57 58
58 58 500Hz 1kHz 2kHz 4kHz 8kHz 16kHz
A. The data shown above was taken on the 40 hp. Since the
highest Sound Level is below 80 dBA, no additional 36" diameter
Firetubes were tested. If Sound Level predictions are required for
the 15 thru 30 hp, use the values shown for the 40 hp.
A2-2707-02
Model CB Boilers
Firetube Boilers