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Boiler operation
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Produced by the Employees of
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-BrooksP.O. Box 421
Milwaukee, WI 53201
(414) 359-0600email: [email protected]
www.cleaver-brooks.com
Printed in the U.S.A.
The Boiler Book
iii
Performance Proven Worldwide
The Boiler Book is intended for use by qualified 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 CONTENTS
Firetube Boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section A
A1 GeneralA2 Model CB BoilersA3 Model CB (LE) BoilersA4 Model CBW Boilers
A6 Model CB Ohio Special BoilersA7 Model CBE BoilersA8 Model CEW BoilersA9 Model CEW-LN BoilersA10 Model CEW Ohio Special BoilersA11 Model CBL BoilersA12 Model ICB BoilersA13 Model ICB-LN Boilers
Commercial Boilers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section B
B1 Model FLX BoilersB2 Model 4 BoilersB3 Model 5 BoilersB4 Electric Boilers
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section D
Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section E
Stacks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section F
Economizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section G
Feedwater Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section H
H1 Spraymaster Deaerators (Single Tank)H2 Spraymaster Deaerators (Duo Tank)H3 Boilermate DeaeratorsH4 Surge TanksH5 Boiler Feed SystemsH6 Chemical Feed Systems and Metering PumpsH7 FiltersH8 SoftenersH9 DealkalizersH10 Blowdown SeparatorsH11 Blowdown Heat Recovery SystemsH12 Flash Tank Heat ExchangersH13 Sample Coolers
System Fundamentals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section I
I1 Boiler Selection ConsiderationsI2 Hot Water SystemsI3 Steam SystemsI4 General Engineering Data
Glossary/Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section J
A5 Discontinued
Industrial Watertube Boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section C
B5 - TrueFire BoilersB6 - ClearFire Boilers
http://www.speci-fire.com/SPECI-FIRE_PDF/J-Glossary-Index.pdfA1-1
12-02
Model CB Boilers
Section A1
GENERAL
Model CBE Boilers
Model CB-LE Boilers
Model CB Ohio Special Boilers
A2
A3
A4
A5
A6
A7
Model CEW Boilers
Model CEW-LN Boilers
A8
A9
Model CEW Ohio Special Boilers A10
Model CBL Boilers A11
A12
A13
Model ICB Boilers
Model ICB-LN Boilers
A1_TEXT.fm Page 1 Tuesday, December 10, 2002 2:35 PM
Model CBH Boiler (discontinued)
Model CBW Boilers
A1-2
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12-02
FEATURES AND BENEFITS
The following Cleaver-Brooks firetube boiler models (CB, CB-LE, CBW, CB Ohio Special) include the following fea-tures and benefits.
Packaged Design with Integral Front Head:
Integral front head provides proper burner/boiler compatibility for maximum efficiency 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 simplifies 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, efficiency, and reliability.
Low Stack Temperatures:
Guaranteed efficiency verified by low stack temperatures.
Reduced fuel and operating costs.
Low Excess Air:
Operates at 3% O
2
with less than 200 ppm CO for maximum combustion efficiency.
High efficiency 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.
Heavy duty motor with direct drive, maintenance free, case-less 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 efficiency and durable construction.
All units finished with hard enamel paint coating.
Customer Service and Support:
Boiler start-up, final adjustment, and operator training provided with all firetube 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.
A1-3
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12-02
PRODUCT OFFERING
Cleaver-Brooks firetube boilers are available in low pressure steam, high pressure steam, and hot water designs. Burners are available to fire natural gas, light oil, heavy oil, or a combina-tion of oil and gas. Optional alternate fuel (propane, mixed gas, digester gas, etc.) burners are also available.
The firetube product offering is available in the following models.
The Model CB Boiler (standard offering) is the premium fire-tube product offering providing maximum boiler efficiency, 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 firing.
The Model CB (LE) Boiler is the premium firetube 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 firing.
The 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 firing.
The Model CBE Boiler (standard offering) provides high qual-ity 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 firetube 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.
A1-4
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12-02
The 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 firing.
The Model ICB Boiler is a baseline firetube product, designed to provide high quality steam or hot water. Its revolutionary design incorporates the key features and benefits of both the wetback and dry back firetube 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 firing.
The Model ICB-LN Boiler is a baseline firetube product, designed to provide high quality steam or hot water with a low emission package. Its revolutionary design incorporates the key features and benefits of both the wetback and dry back firetube 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 firing.
MODEL NUMBER, FUEL SERIES NUMBER, HORSEPOWER, AND DESIGN PRESSURE
The model designation for Cleaver-Brooks firetube 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 fired, 350 hp, 150 psig steam design pressure.
All Cleaver-Brooks firetube 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 represen-tative for assistance in completing your specification or for additional information and optional equipment.
Refer to Table A1-1 for information on the standard product offering for each firetube boiler model.
Table A1-1. Quick Comparison of Standard Features for Cleaver-Brooks FIretube Boilers
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.
MODEL
CB15-800 HP
(SECTION A2)
CBLE125-800 HP
(SECTION A3)
CBW 100-800 HP
(SECTION A4)
CB OHIO SPECIAL100-225 HP
(SECTION A6)
CBE60-350 HP
(SECTION A7)
CEW125-800 HP
(SECTION A8)
CEW-LN125-800 HP
(SECTION A9)
CEW OHIO SPECIAL
100-225 HP(SECTION A10)
CBL800-1500 HP
(SECTION A11)
ICB100-800 HP
(SECTION A12)
ICB-LN100-800 HP
(SECTION A13)
Rated Capacity 15-800 hp 125-800 hp 100-800 hp 100-225 hp 60-350 hp 125-800 hp 125-800 hp 100-225 hp 800-1500 hp 100-800 hp 100-800 hp
DesignPressure
A
Steam15-300 psig
Steam15-300 psig
Steam15-250 psig
Steam Only15-250 psig
Steam15-300 psig
Steam15-250 psig
Steam15-250 psig
Steam15-250 psig
Steam150-250 psig
Steam15-300 psig
Steam15-300 psig
Hot Water30 & 125 psig
Hot Water30 & 125 psig
Hot Water30 & 125 psig
Hot Water30 & 125 psig
Hot Water30 & 125 psig
Hot Water30 & 125 psig
Hot Water30 & 125 psig
Hot Water30 & 125 psig
Boiler Type 4-Pass Dry Back 4-Pass Dry Back 3-Pass Wet Back Passes Vary C
3-Pass Dry Back 3-Pass Wet Back 3-Pass Wet Back 3 Pass Wet Back 3 or 4-Pass Wet Back
4-Pass Intercooled3-Pass Option
4-Pass Intercooled3-Pass Option
Shell Size 36" 15-40 hp48" 50-100 hp
60" 125-200 hp78" 250-350 hp96" 400-800 hp
60" 125-200 hp78" 250-350 hp96" 400-800 hp
60" 100-200 hp78" 250-400 hp96" 500-800 hp
48" 100 hp60"125-225 hp
48" 60-100 hp60" 125-200 hp78" 250-350 hp
60" 125-200 hp78" 250-400 hp96" 500-800 hp
60" 125-200 hp78" 250-400 hp96" 500-800 hp
60" 100-225 hp 114" or 126"
E
55" 100-125 hp60" 150-200 hp72" 250-300 hp78" 350-400 hp92" 500-600 hp
106" 700-800 hp
55" 100-125 hp60" 150-200 hp72" 250-300 hp78" 350-400 hp92" 500-600 hp
106" 700-800 hp
Fuel 15-800 hpNo. 2 Oil, Gas,Combination
Oil/Gas
No. 2 Oil,Gas,
Combination Oil/Gas
No. 2 Oil,Gas,
CombinationOil/Gas
100-225 hpNo. 2 Oil,
Gas,Combination
Oil/Gas
No. 2 Oil,Gas,
Combination Oil/Gas
No. 2 Oil,Gas,
CombinationOil/Gas
No. 2 Oil,Gas,
Combination Oil/Gas
No. 2 Oil,Gas,
Combination Oil/Gas
800-1300 hpNo. 2 Oil, Gas, Combination
Oil/Gas
No. 2 Oil,Natural Gas
Combination Oil/Gas
No. 2 Oil,Natural Gas
Combination Oil/Gas
50-800 hpNo. 6 Oil
B
,Gas,
CombinationOil/Gas
No. 6 Oil
B
,Gas,
Combination Oil/Gas
100 hpNo. 6 Oil,
Gas,Combination
Oil/Gas
800-1500 hpGas
800-1000 hpNo. 6 Oil, Gas, Combination
Oil/Gas
Firing Method 15-20 hpOn-off
Full Modulation Full Modulation Full Modulation Full Modulation Full Modulation Full Modulation Full Modulation Full Modulation Full Modulation Full Modulation
30-40 hpLow-High-Low-Off
50-800 hpFull Modulation
Air Damper Type Single Blade15-40 hp
Rotary 50-800 hp
Rotary Rotary Rotary Multi-Blade Multi-Blade125-350 hp,
Rotary 400-800 hp
Rotary Multi-Blade Rotary & Louvers Multiblade100-250 hp
Rotary 300-800 hp
F
Rotary
Paint Color Blue Blue Blue Blue Blue Blue Blue Blue Blue Blue Blue
Approvals UL & ULCBoiler/Burner
UL & ULCBoiler/Burner
UL & ULCBoiler/Burner
N/A UL & cULBoiler/Burner
UL & cUL Boiler/Burner
UL & cULBoiler/Burner
N/A 800-1000 hp UL & CSA
(Burner Only)
UL & cUL Boiler/Burner
UL & cUL Boiler/Burner
Steam Trim-Low Water Control
McD&M 157 McD&M 157 McD&M 157 McD&M 157 McD&M 157 McD&M 157 McD&M 157 McD&M 157 McD&M 193-7 McD&M 157, McD&M 193
McD&M 157, McD&M 193
Steam Trim AuxLow Water Control
Warrick 3C-2 Warrick 3C-2 Warrick 3C-2 Warrick 3C-2 Warrick 3C-2 Warrick 3C-2 Warrick 3C-2 Warrick 3C-2 Warrick 3C-2 Warrick 3C-2 Warrick 3C-2
Water Trim-LowWater Control
McD&MPS 750-MT-120
McD&M PS 750-MT-120
McD&MPS 750-MT-120
N/A McD&MPS 750-MT-120
McD&MPS 750-MT-120
McD&MPS 750-MT-120
N/A N/A McD&MPS 750-MT-120
McD&MPS 750-MT-120
12-02
Table A1-1. Quick Comparison of Standard Features for Cleaver-Brooks FIretube Boilers (Continued)
MODEL
CB15-800 HP
(SECTION A2)
CBLE125-800 HP
(SECTION A3)
CBW 100-800 HP
(SECTION A4)
CB OHIO SPECIAL100-225 HP
(SECTION A6)
CBE60-350 HP
(SECTION A7)
CEW125-800 HP
(SECTION A8)
CEW-LN125-800 HP
(SECTION A9)
CEW OHIO SPECIAL
100-225 HP(SECTION A10)
CBL800-1500 HP
(SECTION A11)
ICB100-800 HP
(SECTION A12)
ICB-LN100-800 HP
(SECTION A13)
ControlsSteam & Hot
Water Controls
Hi Limit (MR),Oper. Limit,Firing Rate30-800 hp
Hi Limit (MR),Oper. Limit,Firing Rate
Hi Limit (MR),Oper. Limit,Firing Rate
Hi Limit (MR),Oper. Limit,Firing Rate
Hi Limit (MR),Oper.Limit,Firing Rate
Hi Limit (MR),Oper. Limit,Firing Rate
Hi Limit (MR),Oper. Limit,Firing Rate
Hi Limit (MR),Oper. Limit,Firing Rate
Hi Limit (MR),Oper. Limit,Firing Rate
Hi Limit (MR),Oper. Limit,Firing Rate
Hi Limit (MR),Oper. Limit,Firing Rate
Surface BlowoffConn. & Dip
Tube on top C/L
HPS-StdLPS-Conn. Only
HPS-StdLPS-Conn. Only
HPS-StdLPS-Conn. Only
HPS-StdLPS-Conn. Only
HPS-StdLPS-Conn. Only
HPS-StdLPS-Conn. Only
HPS-StdLPS-Conn. Only
HPS-StdLPS-Conn. Only
HPS-Std HPS-StdLPS-Conn. Only
HPS-StdLPS-Conn. Only
Air Vent Connection
HW-Std. HW-Std. HW-Std. N/A HW-Std. HW-Std. HW-Std. N/A N/A HW-Std HW-Std
Stack Thermometer
Yes Yes Yes Yes No No No No Yes No No
Drain Valve-HW & 15 psig-Steam
No No No No No No No No N/A No No
Front Door Hinge 15-200 hpDavit/Hinge250-800 hp
Hinge 125-200 hpDavit /Hinge250-800 hp
Hinge 100-200 hpDavit/Hinge250-800 hp
Hinge Davit Davit Davit Davit Davit Davit Davit
Rear Door Hinge 15-100 hpDavit 125-800 hp
Davit Davit Hinge 100 hpDavit 125-225 hp
Davit Davit Davit Davit Davit Davit Davit
Insulation 2 inch 2 inch 2 inch 2 inch 2 inch 2 Inch 2 Inch 2 Inch 2 Inch 2 inch 2 inch
StandardVoltage
Requirements
3 Phase 3 Phase 3 Phase 3 Phase 60-80 hp-1 Phase
100-350 hp-3 Phase
3 Phase 3 Phase 3 Phase 3 Phase 3 Phase 3 Phase
Fuse Protection Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control Circuit &All 3 Phase Loads
Except RemoteOil Pump
Control CircuitTransformer
Yes Yes Yes Yes Yes-3 Phase Only Yes Yes Yes Yes Yes Yes
Flame SafeguardControl
Cleaver-BrooksCB780
Cleaver-BrooksCB780
Cleaver-BrooksCB780
Cleaver-BrooksCB780
Cleaver-BrooksCB110
Cleaver-BrooksCB110
Cleaver-BrooksCB110
Cleaver-BrooksCB110
Cleaver-BrooksCB110
Cleaver-BrooksCB110
Cleaver-BrooksCB110
Scanner Type Infrared Infrared Infrared Infrared Ultraviolet Ultraviolet Ultraviolet Ultraviolet Ultraviolet (Gas & No. 2 Oil)
Infrared (No. 6 Oil)
Ultraviolet Ultraviolet
Control PanelLocation
Front Head withKey Lock
Front Head withKey Lock
Front Head withKey Lock
Front Head withKey Lock
Burner withoutKey Lock
Burner withoutKey Lock
Burner withoutKey Lock
Burner withoutKey Lock
Burner withoutKey Lock
On Burnerwithout Key Lock
Remote-Right Side without
Key Lock
Indicating Lights 50-800 hpLD, FV, LW, FF
LD, FV, LW, FF LD, FV, LW, FF LD, FV, LW, FF LD, FV, LW, FF LD, FV, LW, FF LD, FV, LW, FF LD, FV, LW, FF LD, FV, LW, FF LD, FV, LW, FF LD, FV, LW, FF
Type of Pilot Interrupted Gas Pilot-Gas,
No. 6 Oil & All Combination15-800 hp
Interrupted Gas Pilot-Gas & All Combination
Interrupted Gas Pilot-Gas,
No. 6 Oil & All Combination
Interrupted Gas Pilot-Gas, No. 6 Oil
& All Combination
Interrupted Gas Pilot-Gas & All Combination
Interrupted Gas Pilot-Gas, No. 2 Oil & All Combination
Interrupted Gas Pilot-Gas, No. 2 Oil
&All Combination
Interrupted Gas Pilot-Gas, No. 2 Oil
&All Combination
Interrupted Gas Pilot-Gas, No. 2 Oil,
No. 6 Oil&
All Combination
Interrupted Gas Pilot-Gas, No. 2 Oil
All Combination
Interrupted Gas Pilot-Gas, No. 2 Oil
All Combination
Direct SparkIgnition-No. 2 Oil
15-40 hp
Spark Ignited Oil Pilot No. 2 Oil
Spark Ignited Oil Pilot No. 2 Oil
Spark Ignited Oil Pilot No. 2 Oil
No. 2 OilDirect Spark
Ignition60-100 hpGas Pilot
125-350 hp
Spark Ignited Oil Pilot-No. 2 Oil
50-800 hp
12-02
D
Altitude, size, and fuel series limitations may apply.
MODEL
CB15-800 HP
(SECTION A2)
CBLE125-800 HP
(SECTION A3)
CBW 100-800 HP
(SECTION A4)
CB OHIO SPECIAL100-225 HP
(SECTION A6)
CBE60-350 HP
(SECTION A7)
CEW125-800 HP
(SECTION A8)
CEW-LN125-800 HP
(SECTION A9)
CEW OHIO SPECIAL
100-225 HP(SECTION A10)
CBL800-1500 HP
(SECTION A11)
ICB100-800 HP
(SECTION A12)
ICB-LN100-800 HP
(SECTION A13)
Gas Burner Type High Radiant Multi-Port-All Except
125-200 hp-Annular Entry
High Radiant Multi-Port-All Except
125-200 hp-Annular Entry
High Radiant Multi-Port-All Except
125-200 hp-Annular Entry
High RadiantMulti-Port 100 hp
Annular 125-225 hp
High RadiantMulti-Port
High RadiantMulti-Port
High RadiantMulti-Port
High RadiantMulti-Port
High RadiantMulti-Port
High RadiantMulti-Port
High RadiantMulti-Port
Main Gas Valve Motorized Motorized Motorized Motorized Solenoid, Motorized Solenoid, Motorized Solenoid, Motorized Solenoid, Motorized Motorized Solenoid, Motorized Solenoid, Motorized
Main Gas Control System
Butterfly Valve Butterfly Valve Butterfly Valve Butterfly Valve Butterfly Valve Butterfly Valve Butterfly Valve Butterfly Valve Butterfly Valve Butterfly Valve Butterfly Valve
Gas Pressure Regulator
Required, Not Included
Required, Not Included
Required, Not Included
Required, Not Included
Included Included Included Included Included Included Included
Gas PilotRegulator
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
High & Low Gas Pressure Switches
No-15-50 hpYes-60-800 hp
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Oil Burner Type Air Atomizing Air Atomizing Air Atomizing Air Atomizing Pressure Atomizing60-200 hp
Air Atomizing250-350 hp
Air Compressor-Shipped Loose
Pressure Atomizing125-200 hp
Air Atomizing250-800 hp
Air Compressor -Shipped loose
Air AtomizingAir Compressor
125-300 hp-Mounted
350-800 hp-Shipped Loose
Air Atomizing Air Atomizing Pressure Atomizing
100-150 hp Air Atomizing 200-800 hp
Air Atomizing
Main Oil Valves Solenoid Solenoid Solenoid Solenoid Solenoid Solenoid Solenoid Solenoid Motorized Solenoid Solenoid
Oil ControlSystem
Metering Valve Metering Valve Metering Valve Metering Valve Metering System Metering System Metering System Metering System Metering System Metering System Metering System
Oil Pump Included Included Included Included Included Included Included Included Included Included Included
Location of Oil Pump
No. 2 Oil 15-40 hp on Front Head;
50-800 hp Remote
No. 2 Oil125-800 hp
Remote
No. 2 Oil 100-800 hp Remote
No. 2 Oil100-225 hp
Remote
No. 2 Oil 60-200 hp Burner Mounted
No. 2 Oil 250-350 hp
Remote
No. 2 Oil125-200 hp
Burner MountedNo. 2 Oil
250-800 hpRemote
No. 2 Oil125-800 hp
Remote
No. 2 Oil100-225 hp
Remote
No. 2 Oil Remote
No. 2 Oil100-150 hp
Burner Mounted No. 2 Oil
200-800 hp Remote
No. 2 Oil100-800 hp
Remote
No. 6 Oil 50-800 hp, Remote
No. 6 Oil100-800 hp Remote
No. 6 Oil100-225 hp
Remote
No. 6 Oil Mounted on Oil Pump/Oil
Heater Skid
NOx Control No-Use CBLE Induced FGR
D
(LE Option)125-800 hp20-60 ppm
(Natural Gas)
No-Use CEW-LN N/A N/A No-Use CEW-LN Induced FGR30 ppm(Natural
Gas)
N/A Optional-Induced FGR 30 ppm
(Natural Gas) up to 1300 hp.
No-Use ICB-LN Induced FGR 30 ppm
(Natural Gas)
Maximum StackPressureVariation
15-40 hp+ or-0.25" W.C.
+ or-0.25" W.C. + 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-0.50" W.C. + or-0.25" W.C. + or-0.25" W.C.
50-800 hp+ or-0.50" W.C.
+ or-0.25" W.C.With FGR
Start-Up Included Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Table A1-1. Quick Comparison of Standard Features for Cleaver-Brooks FIretube Boilers (Continued)
12-02
A1-8
GGGGeeeennnneeeerrrraaaallll FFFFiiiirrrreeeettttuuuubbbbeeee BBBBooooiiii lllleeeerrrrssss
12-02
Notes
A2-1
07-02
CONTENTS
FEATURES AND BENEFITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-3 PRODUCT OFFERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-3DIMENSIONS AND RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-4PERFORMANCE DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-21
Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-21Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-21
ENGINEERING DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-24Blowdown Water Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-24Sound Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-27Gas-Fired Burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-30Gas Pressure Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-31Oil-Fired Burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-36No. 6 Oil Piping, Storage Tank Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-36Boiler Room Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-44Stack Support Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-44Stack/Breeching Size Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-44Boiler 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-10
Figure A2-2. Model CB Steam Boiler Dimensions and Weights (15 and 150 psig Design Pressure - 125 to 800 hp) Sheet 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-12
Figure A2-3. Model CB Hot Water Boiler Dimensions (30 psig and 125 psig Design Pressure - 15 to 100 hp) - Sheet 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-14
Figure A2-4. Model CB Hot Water Boiler Dimensions (30 psig and 125 psig Design Pressure - 15 to 100 hp) - Sheet 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-16
Figure A2-5. Space Required to Open Rear Head on Model CB Boilers Equipped with Davits . . . . . . . . . . . . . . . . . . . A2-18Figure A2-6. Lifting Lug Location, Model CB Boilers - Sheet 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-18Figure A2-7. Model CB Boiler Mounting Piers 20Figure A2-8. Predicted Stack Temperature Increase for Pressure Greater Than 125 psig . . . . . . . . . . . . . . . . . . . . . . . . A2-23Figure A2-9. Standard Gas Train Connection Size and Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-34
Section A2
MODEL CB BOILERS
A2-2
Model CB Boilers Firetube Boilers
07-02
Figure A2-10. Typical Gas Piping Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-35Figure A2-11. Model CB Gas Train Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-36Figure A2-12. No. 2 Oil Connection Size, Location and Recommended Line Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-37Figure A2-13. No. 6 Oil Connection Size, Location and Recommended Line Sizes, Model CB Boiler . . . . . . . . . . . . . . A2-37Figure A2-14. No. 2 Oil Piping, Single Boiler Installation, Remote Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-38Figure A2-15. No.2 Oil Piping, Single Boiler Installation Oil Pump Integral with Boiler . . . . . . . . . . . . . . . . . . . . . . . . A2-38Figure A2-16. No. 2 Oil Piping, Multiple Boiler Installation, Remote Oil Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-39Figure A2-17. No. 2 Oil Piping, Multiple Boiler Installation, Oil Pump Integral with Boiler . . . . . . . . . . . . . . . . . . . . . A2-39Figure A2-18. No. 2 Oil Piping, Multiple Boiler Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-40Figure A2-19. No. 6 Oil Piping, Single Boiler Installation, Remote Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-40Figure A2-20. No. 6 Oil Piping, Multiple Boiler Installation, Remote Oil Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-41Figure A2-21. No. 6 Oil Piping, Multiple Boiler Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-41Figure A2-22. No. 2 Oil Transfer Tank Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-42Figure A2-23. Typical Fuel Storage Tank Arrangement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-42Figure A2-24. Typical Cross Section of Bundled Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-43Figure A2-25. Schematic of Standard Alstrom Hot Water Safety-Type Preheating System . . . . . . . . . . . . . . . . . . . . . . . A2-43Figure A2-26. Boiler Room Length (Typical Layout) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-45Figure A2-27. Boiler Room Width (Typical Layout) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-45Figure A2-28. Breeching Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-46
TABLES
Table A2-1. Model CB Steam Boiler Ratings (15 - 100 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-5Table A2-2. Model CB Steam Boiler Ratings (125 - 800 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-5Table A2-3. Model CB Hot Water Boiler Ratings (15 - 100 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-6Table A2-4. Model CB Hot Water Boiler Ratings (125 - 800 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-6Table A2-5. Steam Boiler Safety Valve Openings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-7Table A2-6. Hot Water Boiler Relief Valve Openings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-8Table A2-7. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 10 psig, Natural Gas . . . . . . . . . . . . . . . . . A2-22Table A2-8. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 125 psig, Natural Gas . . . . . . . . . . . . . . . . A2-22Table A2-9. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 10 psig, No. 6 Oil . . . . . . . . . . . . . . . . . . . A2-22Table A2-10. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 125 psig, No 6 Oil . . . . . . . . . . . . . . . . . . A2-22Table A2-11. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 10 psig, No. 2 Oil . . . . . . . . . . . . . . . . . . A2-23Table A2-12. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 125 psig, No. 2 Oil . . . . . . . . . . . . . . . . . A2-23Table A2-13. Model CB Boiler Emission Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-24Table A2-14. Heating Surface, Model CB Boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-24Table A2-15. Steam Volume and Disengaging Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-25Table A2-16. Water Circulation Rate and Temperature Drop for Hot Water Boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-25Table A2-17. Recommended Steam Nozzle Size (To Maintain 4000 to 5000 fpm Nozzle Velocity) . . . . . . . . . . . . . . . A2-26Table A2-18. Recommended Non-Return Valve Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-26Table A2-19. Model CB Blowdown Tank Sizing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-27Table A2-20. Sound Pressure Level Summary (50 - 800 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-27Table A2-21. Model CB Boiler Sound Pressure Level Details (40 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-27Table A2-22. Model CB Boiler Sound Pressure Level Details (50 - 125 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-28Table A2-23. Model CB Boiler Sound Pressure Level Details (125 - 200 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-29Table A2-24. Model CB Boiler Sound Pressure Level Details (250 - 350 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-29Table A2-25. Model CB Boiler Sound Pressure Level Details (400 - 800 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-30Table A2-26. Minimum Required Gas Pressure at Entrance to Standard and FM Gas Trains
(Downstream of Gas Pressure Regulator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-31Table A2-27. Minimum Gas Pressure at Entrance to Gas Trains Equipped with Industrial Risk Insurers
(IRI) Requirements (Downstream of Gas Pressure Regulator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-31Table A2-28. Under and Oversized Standard and FM Gas Trains, Model CB Boilers (50 - 800 hp) . . . . . . . . . . . . . . . . A2-32Table A2-29. Under and Oversized IRI Gas Trains, Model CB Boilers (50 - 800 hp) . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-33Table A2-30. Minimum Required Gas Pressure Altitude Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-33Table A2-31. Maximum Gas Consumption (CFH) for Natural Gas and Propane Vapor & Gas Pilot Data. . . . . . . . . . . . A2-34
A2-3
Firetube Boilers Model CB Boilers
07-02
FEATURES AND BENEFITS
In addition to the features provided on all Cleaver-Brooks Firetube Boilers, the following features apply specifically to Model CB Firetube Boilers. The CB four-pass dryback boiler is the premium firetube boiler design available.
Four-Pass Dryback Design:
Four-pass design provides high flue gas velocities and low stack temperature for guaranteed maximum efficiency.
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 efficiency and long boiler life.
Highest guaranteed fuel-to-steam efficiencies.
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 fired) 8:1 (No. 2 oil fired) standard on 250 hp through 800 hp.
Advanced burner design provides maximum combustion efficiencies and high turndown.
Reduced boiler cycling and maintenance.
Boiler stays on line during low load conditions for optimum efficiency 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 efficiencies.
Air atomizing oil burner available for proper oil atomization, maximum combustion efficiency, 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 firing gas.
Low NOx Capability Available:
20 ppm NOx guarantee available on Model CB (LE) Boilers.
PRODUCT OFFERING
Model CB Firetube Boilers are available in low pressure steam, high pressure steam, and hot water designs. Burners are available to fire natural gas, light oil, heavy oil, or a combina-tion 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 firing.
The Model CBBoiler is the premium firetube product offering providing maximum boiler efficiency, the widest range of size and pressures, and premium control packages.
Available options: For option details, contact your Cleaver-Brooks authorized representative. Options include the following:
Boiler Options
Auxiliary low water cut-off (standard on steam boilers).
Drain valves.
Additional screwed or flanged tappings.
Special design pressures.
Surge load baffles.
Seismic design.
A2-4
Model CB Boilers Firetube Boilers
07-02
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-proofing.
Blend pump.
Burner/Control Options
Special modulation controls.
Low NOx equipment.
Optional flame 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 efficiency).
Remote contacts.
Special purpose indicator lights.
Main disconnect.
Elapsed time meter.
Voltmeter/micro-ammeter.
NEMA enclosures.
Low fire 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.
Alternate fuel firing (propane, digester gas, etc.).
Special oil pumps.
DIMENSIONS AND RATINGS
Dimensions 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
A2-5
Firetube Boilers Model CB Boilers
07-02
BOILER HP 15
C
20
C
30
C
40
C
50 60 70 80 100
RATINGS - SEA LEVEL TO 3000 FT
Rated Cap. (lbs steam/hr @212F)Btu Output (1000 Btu/hr)
518502
690670
10351004
13801339
17251674
20702009
24152343
27602678
34503348
APPROXIMATE FUEL CONSUMPTION AT RATED CAPACITY
Light Oil (gph)
A
4.5 6.0 9.0 12.0 15.0 18.0 21.0 24.0 30.0
Heavy Oil (gph)
B
- - - - 14.0 16.5 19.5 22.5 28.0
Gas (cfh) 1000 Btu-NatGas (Therm/hr)
6256.3
8358.4
125512.6
167516.8
209521.0
251025.1
293029.3
335033.5
418541.9
POWER REQUIREMENTS - SEA LEVEL TO 3000 FT, 60 HZ
Blower Motor hp (except gas) 1 1 1-1/2 2 2 2 2 2
D
3
Gas Models (only) 1 1 1-1/2 2 2 2 2 2
D
3
Oil Pump Motor, hp No. 2 Oil Belt-Driven From Blower 1/3 1/3 1/3 1/3 1/3
Oil Pump Motor, hp No. 6 Oil - - - - 1/3 1/3 1/3 1/3 1/3
Oil Heater kW No. 6 Oil - - - - 5 5 5 5 5
Air Compressor Motor hp (Oil firing Only)
Air Compressor Belt-Driven from Blower Motor 2 2 2 2 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. No. 6 Oil not available in 15-40 hp range.D. 3 hp above 2000 ft.
Table A2-1. Model CB Steam Boiler Ratings (15 - 100 hp)
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)
43134184
51755021
69006695
86258369
1035010043
1207511716
1380013390
1725016738
2070020085
2415023432
2587525106
2760026779
APPROXIMATE FUEL CONSUMPTION AT RATED CAPACITY
Light Oil (gph)
A
37.5 45.0 60.0 74.5 89.5 104.5 119.5 149.5 179.5 209.0 224.2 239.3
Heavy Oil (gph)
B
35.0 42.0 56.0 69.5 83.5 97.5 111.5 139.5 167.5 195.5 209.2 223.4
Gas (cfh)MBTU-natGas(Therm/hr)
5230
52.3
6280
62.8
8370
83.7
10460
104.6
12555
125.5
14650
146.5
16750
167.5
20925
209.3
25100
251.0
29300
293.0
31385
313.8
33480
334.8
POWER REQUIREMENTS - SEA LEVEL TO 3000 FT, 60 HZ
Blower Motor hp (except gas) 5 7-1/2 15 7-1/2 10
C
15
D
10
C
15
E
20
F
30
G
40
L
50
H
Gas Models (only) 5 5 10 7-1/2 7-1/2
I
15 10
C
15
E
20
F
30
G
40
L
50
H
Oil Pump Motor, hp No. 2 Oil 1/2 1/2 1/2 1/2 3/4 3/4 3/4 3/4 3/4 1 1 1
Oil Pump Motor, hp No. 6 Oil 1/2 1/2 1/2 1/2 1/2 3/4 3/4 3/4 3/4 3/4 3/4 3/4
Oil Heater kW No. 6 Oil 5 5 5 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2
K
7-1/2
K
7-1/2
K
7-1/2
K
7-1/2
K
Air Compressor Motor hp (Oil firing Only)
Air Compressor Belt-Driven From Blower Motor 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2
NOTES:1. For altitudes above 3000 ft, contact your local Cleaver-Brooks autho-rized 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.
A2-6
Model CB Boilers Firetube Boilers
07-02
BOILER HP 15
c
20
c
30
c
40
c
50 60 70 80 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
4.5 6.0 9.0 12.0 15.0 18.0 21.0 24.0 30.0 30.0 37.5
Heavy Oil (gph)
B
- - - - 14.0 16.5 19.5 22.5 28.0 28.0 35.0
Gas (cfh)MBtu- natGas (Therm/hr)
6256.3
8358.4
125512.6
167516.8
209521.0
251025.1
293029.3
335033.5
418541.9
418541.9
523052.3
POWER REQUIREMENTS - SEA LEVEL TO 3000 FT, 60 HZ
Blower Motor hp (except gas) 1 1 1-1/2 2 2 2 2 2
D
3 3 3
Gas Models (only) 1 1 1-1/2 2 2 2 2 2
D
3 3 3
Oil Pump Motor, hp No. 2 Oil Belt-Driven From Blower 1/3 1/3 1/3 1/3 1/3 1/3 1/2
Oil Pump Motor, hp No. 6 Oil - - - - 1/3 1/3 1/3 1/3 1/3 1/3 1/2
Oil Heater kW No. 6 Oil - - - - 5 5 5 5 5 5 5
Air Compressor Motor hp (Oil firing Only)
Air Compressor Belt-Driven from Blower Motor
2 2 2 2 2 2 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. No. 6 Oil not available in 15-40 hp range.D. 3 hp above 2000 ft.
Table A2-3. Model CB Hot Water Boiler Ratings (15 - 100 hp)
Table A2-4. Model CB Hot Water Boiler Ratings (125 - 800 hp)
BOILER HP 150 175A 200 250 300 350 400 500 600 700 750 800
RATINGS - SEA LEVEL TO 3000 FT
J
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 52.5 60.0 74.5 89.5 104.5 119.5 149.5 179.5 209.0 224.2 239.3
Heavy Oil (gph)
B
42.0 49.0 56.0 69.5 83.5 97.5 111.5 139.5 167.5 195.5 209.3 223.4
Gas (cfh)MBtu-Natural Gas (Therm/hr)
628062.8
732073.2
837083.7
10460104.6
12555125.5
14650146.5
16750167.5
20925209.3
25100251.0
29300293.0
31385313.8
33480334.8
POWER REQUIREMENTS - SEA LEVEL TO 3000 FT, 60 HZ
Blower Motor hp (except gas) 7-1/2 7-1/2 15 7-1/2 10
C
15
D
10
C
15
E
20
F
30
G
40
K
50
H
Gas Models (only) 5 5 10 7-1/2 7-1/2
I
15 10
C
15
E
20
F
30
G
40
K
50
H
Oil Pump Motor, hp No. 2 Oil 1/2 1/2 1/2 1/2 3/4 3/4 3/4 3/4 3/4 1 1 1
Oil Pump Motor, hp No. 6 Oil 1/2 1/2 1/2 1/2 1/2 3/4 3/4 3/4 3/4 3/4 3/4 3/4
Oil Heater kW No. 6 Oil 5 5 5 7-1/2 7-1/2 7-1/2 10 10 10 10 10 10
Air Compressor Motor hp (Oil firing Only) 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2
NOTES:1. For altitudes above 3000 ft, contact your local Cleaver-Brooks au-thorized 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. 50 hp above 2500 ft.
A2-7
Firetube Boilers Model CB Boilers
07-02
VALVE SETTING 15 PSIG STEAM 100 PSIG STEAM 125 PSIG STEAM 150 PSIG STEAM 200 PSIG STEAM 250 PSIG STEAM
BOILERHP
NO. OF VALVESREQ'D
OUTLET SIZE(IN.)
NO. OF VALVESREQ'D
OUTLET SIZE(IN.)
NO. OF VALVES REQ'D
OUTLET SIZE(IN.)
NO. OF VALVESREQ'D
OUTLET SIZE(IN.)
NO. OF VALVESREQ'D
OUTLET SIZE(IN.)
NO. OF VALVES REQ'D
OUTLET SIZE(IN.)
15 1 1-1/2 1 1 1 3/4 1 3/4 1 3/4 1 3/4
20 1 1-1/2 1 1 1 1 1 3/4 1 3/4 1 3/4
25 1 2 1 1 1 1 1 1 1 3/4 1 3/4
30 1 2 1 1-1/4 1 1 1 1 1 3/4 1 3/4
40 1 2-1/2 1 1-1/4 1 1-1/4 1 1 1 1 1 1
50 1 2-1/2 1 1-1/2 1 1-1/2 1 1-1/4 1 1 1 1
60 1 2 1 1-1/2 1 1-1/2 1 1-1/4 1 1-1/4 1 1
70 1 2 1 2 1 1-1/2 1 1-1/4 1 1-1/4 1 1-1/4
80 1 2-1/2 1 2 1 1-1/2 1 1-1/2 1 1-1/4 1 1-1/4
100 1 2-1/2 1 2 1 2 1 1-1/2 1 1-1/2 1 1-1/4
125 1 3 2 1-1/2 2 (1) 1-1/2(1) 1-1/4 2(1) 1-1/2(1) 1-1/4 2
(1) 1-1/4(1) 1 2 1
150 1 3 2 (1) 2(1) 1-1/2 2 1-1/2 2(1) 1-1/2(1) 1-1/4 2 1-1/4 2
(1) 1(1) 1-1/4
200 2 2-1/2 2 2 2 (2) 1-1/2 2 2) 1-1/2 2 (1) 1-1/2(1) 1-1/4 2 (2) 1-1/4
250 2 (1) 2-1/2(1) 3 2(1) 2-1/2
(1) 2 2 2 2(1) 2
(1) 1-1/2 2 1-1/2 2(1) 1-1/2(1) 1-1/4
300 2 3 2 2-1/2 2 (1) 2-1/2 (1) 2 2 2 2 (1) 2
(1) 1-1/2 2 1-1/2
350 3 (1) 2 (2) 3 3(1) 2-1/2
(2) 2 2 2-1/2 2(1) 2-1/2
(1) 2 2 2 2(1) 1-1/2
(1)2
400 3 (2) 3(1) 2-1/2 3(1) 2
(2) 2-1/2 2 2-1/2 2(1) 2-1/2
(1) 2 2 2 2(1) 2
(1) 1-1/2
500 3 3 3 2-1/2 3 (2) 2-1/2 (1) 2 2 2-1/2 2(1) 2-1/2
(1) 2 2 2
600 4 (1) 2-1/2(3) 3 4(3) 2-1/2
(1) 2 3 2-1/2 32-1/2 (1) 2 2 2-1/2 2
(1) 2(1) 2-1/2
700 5 (3) 3 (2)2-1/2 5(3) 2-1/2
(2) 2 4(3) 2-1/2
(1) 2 3(2) 2-1/2
(1) 2 2 2-1/2 2 2-1/2
750 5 (3) 3 (2)2-1/2 5(3) 2-1/2
(2) 2 4(3) 2-1/2
(1) 2 3(2) 2-1/2
(1) 2 2 2-1/2 2 2-1/2
800 5 (3) 3 (2)2-1/2 5(3) 2-1/2
(2) 2 4(3) 2-1/2
(1) 2 3(2) 2-1/2
(1)2 2 2-1/2 2 2-1/2
NOTE: Valve manufacturers are Kunkle, Consolidated or Conbraco, depending on availability.
Table A2-5. Steam Boiler Safety Valve Openings
A2-8
Model CB Boilers Firetube Boilers
07-02
VALVE SETTING 30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW
BOILERHP
NO. OF VALVES REQ'D
OUTLETSIZE (IN.)
NO. OF VALVES REQ'D
OUTLET SIZE(IN.)
NO. OF VALVES REQ'D
OUTLET SIZE(IN.)
NO. OF VALVES REQ'D
OUTLET SIZE(IN.)
15 1 1 1 1 1 1 1 1
20 1 1 1 1 1 1 1 1
25 1 1-1/4 1 1 1 1 1 1
30 1 1-1/4 1 1 1 1 1 1
40 1 1-1/4 1 1 1 1 1 1
50 & 50A 1 2 1 1-1/4 1 1 1 1
60 1 2 1 1-1/4 1 1 1 1
70 1 2 1 2 1 1-1/4 1 1
80 1 2 1 2 1 1-1/4 1 1-1/4
100 1 2-1/2 1 2 1 1-1/4 1 1-1/4
100A 1 2-1/2 1 2 1 1-1/4 1 1-1/4
125 1 2-1/2 1 2 1 2 1 1-1/4
125A 1 2-1/2 1 2 1 2 1 1-1/4
150 1 2-1/2 1 2-1/2 1 2 1 2
175A 2 (1) 1(1) 2-1/2 1 2-1/2 1 2 1 2
200 2 (1) 2-1/2(1) 1-1/4 1 2-1/2 1 2 1 2
250 2 (1) 2(1) 2-1/2 1 2-1/2 1 2-1/2 1 2
300 2 2-1/2 2 (1) 1(1) 2-1/2 1 2-1/2 1 2-1/2
350 3 (2) 2-1/2(1) 1 2(1) 2-1/2
(1) 2 1 2-1/2 1 2-1/2
400 3 (1) 2(2) 2-1/2 2 (1) 2
(1) 2-1/2 2 (1) 1
(1) 2-1/2 1 2-1/2
500 4 (1) 1(3) 2-1/2 2 (2) 2-1/2 2(1) 2-1/2(1) 1-1/4 2
(1) 1 (1) 2-1/2
600 4 (3) 2-1/2(1) 2 3 (1) 1-1/4(2) 2-1/2 2
(1) 2(1) 2-1/2 2
(1) 2-1/2(1) 1-1/4
700 5 (1) 1(4) 2-1/2 3(1) 2
(2) 2-1/2 2 (2) 2-1/2 2(1) 2-1/2
(1) 2
750 5 (1) 1(4) 2-1/2 3 (1) 2
(2) 2-1/2 2 (2) 2-1/2 2(1) 2-1/2
(1) 2
800 5 (1) 1(4) 2-1/2 3 (1) 2
(2) 2-1/2 2 (2) 2-1/2 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 theupper portion of the vessel.
Table A2-6. Hot Water Boiler Relief Valve Openings
A2-9
Firetube Boilers Model CB Boilers
07-02
NOTES
A2-10
Model CB Boilers Firetube Boilers
07-02
BOILER HP DIM 15 20 30 40 50 60 70 80 100
LENGTHS
Overall A 96-5/8 96-5/8 114-5/8 140-5/8 129 129 168 168 187
Shell B 62-5/8 62-5/8 80-5/8 106-5/8 92 92 131 131 150
Base Frame C 59 59 77 103 91 91 130 130 148
Front Head Extension D 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2
Rear Head Extension E 15-1/2 15-1/2 15-1/2 15-1/2 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2
Front Ring Flange to Nozzle - 15 psig F 36 36 45 57 46 46 65-1/2 65-1/2 75
Front Ring Flange to Nozzle - 150 psig F 36 36 45 57 46 46 72-1/2 72-1/2 82
Ring Flange to Base G 1-13/16 1-13/16 1-13/16 1-13/16 5/8 1/2 1/2 1/2 1/2
WIDTHS
Overall I 61 61 61 61 73 73 73 73 73
ID, Boiler J 36 36 36 36 48 48 48 48 48
Center to Water Column K 33 33 33 33 39 39 39 39 39
Center to Outside Hinge KK 22 22 22 22 29 29 29 29 29
Center to Lagging L 20 20 20 20 27 27 27 27 27
Center to Auxiliary LWCO LL 28 28 28 28 34 34 34 34 34
Base, Outside M 28 28 28 28 37-5/8 37-3/8 37-3/8 37-3/8 37-3/8
Base, Inside N 22 22 22 22 29-5/8 29-5/8 29-5/8 29-5/8 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
NOTE: ALLOW 3 FEET
FOR DOOR SWING PER NEC
A2-11
Firetube Boilers Model CB Boilers
07-02
BOILER HP DIM 15 20 30 40 50 60 70 80 100
HEIGHTS
Base to Steam Outlet (15 psig only) PL 50-1/4 50-1/4 50-1/4 50-1/4 64-3/4 64-3/4 64-3/4 64-3/4 64-3/4
Overall OO 66 66 66 66 78-3/4 78-3/4 78-3/4 78-3/4 78-3/4
Base to Vent Outlet O 53-1/2 53-1/2 53-1/2 53-1/2 70 70 70 70 70
Base to Steam Outlet (150 psig only) PH 50-1/4 50-1/4 50-1/4 50-1/4 66-31/2 66-1/2 66-1/2 66-1/2 64-3/4
Height of Base Q 8 8 8 8 12 12 12 12 12
Base to Bottom of Boiler R 12 12 12 12 16 16 16 16 16
BOILER CONNECTIONS
Chemical Feed H 1 1 1 1 1 1 1 1 1
Feedwater, Right and Left S 1 1 1 1 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4
Low Pressure (15 psig only)Steam NozzleDrain, Front and Rear
UW
41
41
41
6
A
1-1/46
A
1-1/46
A
1-1/46
A
1-1/26
A
1-1/28
A
1-1/2
High Pressure (150 psig only)Surface Blowoff, Top CLSteam Nozzle Blowdown, Front and Rear
TYW
11-1/2
1
11-1/2
1
121
121
13
1-1/4
13
1-1/4
13
1-1/4
13
1-1/4
14
B
1-1/4
VENT STACK
Diameter (flgd connection) BB 6 6 8 8 10 10 12 12 12
Front Ring Flange to Vent CL CC 4 4 5 5 6 6 7 7 7
MINIMUM CLEARANCES
Rear Door Swing
C
DD 44 44 44 44 55 55 55 55 55
Front Door Swing
C
EE 44 44 44 44 55 55 55 55 55
Tube Removal, Rear FF 56 56 74 100 84 84 123 123 142
Tube Removal, Front GG 46 46 64 90 74 74 113 113 132
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM:
Rear of Boiler RR 163 163 199 251 231 231 309 309 347
Front of Boiler RF 153 153 189 241 221 221 299 299 337
Thru Window or Doorway RD 151 151 169 195 202 202 241 241 260
WEIGHT IN LBS
Normal Water Capacity 1340 1300 1710 2290 3130 2920 4620 4460 5088
Approx. Ship Wgt - 15 psig 3000 3100 3650 4350 6900 7000 8100 8200 9000
Approx. Ship Wgt - 150 psig 3100 3200 3800 4500 7000 7200 8800 9000 9500
Approx. Ship Wgt - 200 psig 3300 3400 4100 4700 7400 7600 9300 9500 10000
NOTES:1. Air compressor belt driven from blower motor on sizes 15 thru 402. 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
A2-12
Model CB Boilers Firetube Boilers
07-02
Figure A2-2. Model CB Steam Boiler Dimensions and Weights (15 and 150 psig Design Pressure - 125 to 800 hp) Sheet 1 of 2
BOILER HP DIM 125 150 200 250 300 350 400 500 600 700 750 800
LENGTHS
Overall A 174-1/2 199-/12 232-1/2 197 227 257 210 244 284 317 319 319
Shell B 125 149 180 144 171 201 152 186 222 255 255 255
Base Frame C 124 148 179 143 170 200 151 185 221 254 254 254
Front Head Extension D 30 31 33 29 32 32 26 26 30 30 32 32
Rear Head Extension E 19-1/2 19-1/2 19-1/2 24 24 24 32 32 32 32 32 32
Front Ring Flange to Nozzle - 15 psig
F 62-1/2 74-1/2 90 72 85-1/2 100-1/2 76 93 111 127-1/2 127-1/2 127-1/2
Front Ring Flange to Nozzle - 150 psig
F 55 66 78 59-1/2 73 88 62 79 97 127-1/2 127-1/2 127-1/2
Ring Flange to Base G 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2
WIDTHS
Overall I 85 85 85 103 103 103 123 123 123 123 123 123
ID, Boiler J 60 60 60 78 78 78 96 96 96 96 96 96
Center to Water Column K 45 45 45 54 54 54 64 64 64 64 64 64
Center to Outside Hinge KK 35 35 35 51 51 51 62 62 62 62 62 62
Center to Lagging L 33 33 33 42 42 42 51 51 51 51 51 51
Center to Auxiliary LWCO LL 40 40 40 49 49 49 59 59 59 59 59 59
Base, Outside M 52-1/2 52-1/2 52-1/2 64-3/8 64-3/8 64-3/8 72 72 72 72 72 72
Base, Inside N 44-1/2 44-1/2 44-1/2 52-3/8 52-3/8 52-3/8 56 56 56 56 56 56
NOTE: ALLOW 3 FEET
FOR DOOR SWING PER NEC
A2-13
Firetube Boilers Model CB Boilers
07-02
BOILER HP DIM 125 150 200 250 300 350 400 500 600 700 750 800
HEIGHTS
Base to Steam Outlet (15 psig only) PL 77 77 77 96 96 96 116 116 116 116 116 116
Overall OO 88 88 88 106 106 106 126 126 126 126 126 126
Base to Vent Outlet O 85 85 85 106 106 106 126 126 126 126 126 126
Base to Steam Outlet (150 psig only)
PH 77 77 77 96 96 96 116 116 116 116 116 116
Davit (Front) DF - - - 104 104 104 125 125 125 125 125 125
Davit (Rear) DR 84-3/4 84-3/4 84-3/4 104 104 104 126 126 126 126 126 126
Height of Base Q 12 12 12 10 10 10 12 12 12 12 12 12
Base to Bottom of Boiler R 16 16 16 17 17 17 19 19 19 19 19 19
BOILER CONNECTIONS
Chemical Feed H 1 1 1 1 1 1 1 1 1 1 1 1
Feedwater, Right and Left S 1-1/2 1-1/2 2 2 2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2
Low Pressure (15 psig only)Steam Nozzle (Note A) Drain, Front and Rear
UW
81-1/2
81-1/2
102
102
122
122
122
122
122
122
122
122
High Pressure (150 psig only)Surface Blowoff, Top CLSteam Nozzle (Note B)Blowdown, Front and Rear
T
YW
1
41-1/2
1
41-1/2
1
41-1/2
1
61-1/2
1
61-1/2
1
61-1/2
1
62
1
82
1
82
1
82
1
82
1
82
VENT STACK
Diameter (flgd. connection) BB 16 16 16 20 20 20 24 24 24 24 24 24
Front Ring Flange to Vent CL CC 9 9 9 10-1/2 10-1/2 10-1/2 12-1/2 12-1/2 12-1/2 12-1/2 12-1/2 12-1/2
MINIMUM CLEARANCES
Rear Door Swing DD 32C 32C 32C 43C 43C 43C 53C 53C 53C 53C 53C 53C
Front Door Swing EE 67 67 67 89C 89C 89C 108C 108C 108C 108C 108C 108C
Tube Removal, Rear FF 115 139 170 131 157 187 135 169 205 238 238 238
Tube Removal, Front GG 103 127 158 116 142 172 116 151 187 220 220 220
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM:
Rear of Boiler RR 307 355 417 364 417 477 395 463 535 601 601 601
Front of Boiler RF 260 308 370 303 356 416 322 390 462 528 528 528
Thru Window or Doorway RD 224 248 279 275 302 332 313 347 383 416 416 416
WEIGHT IN LBS
Normal Water Capacity 5750 7250 8625 10670 13000 15465 15340 19300 23425 27790 27790 27790
Approx. Ship Wgt - 15 psig 12200 12900 15200 21800 24000 27300 33500 38400 44000 51400 51400 51400
Approx. Ship Wgt - 150 psig 12800 13800 16300 23400 26000 28500 36500 41400 47000 54100 54100 54100
Approx. Ship Wgt - 200 psig 13400 14500 17100 25200 28000 30000 38300 44000 50500 57700 57700 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
A2-14
Model CB Boilers Firetube Boilers
07-02
Figure A2-3. Model CB Hot Water Boiler Dimensions (30 psig and 125 psig Design Pressure - 15 to 100 hp) - Sheet 1 of 2
BOILER HP DIM 15 20 30 40 50 60 70 80/ 100A100/125A
LENGTHS
Overall A 97 97 114-5/8 140-5/8 129 129 168 168 187
Shell B 62-5/8 62-5/8 80-5/8 106-5/8 92 92 131 131 150
Base Frame C 59 59 77 103 91 91 130 130 148
Front Head Ext. D 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2
Rear Head Ext. E 15-1/2 15-1/2 15-1/2 15-1/2 18-1/2 18-1/2 18-1/2 18-1/2 18-1/2
Front Ring Flange to Return F 43-5/8 43-5/8 62 81 69 69 108 108 127
Front Ring Flange to Outlet G 55-1/8 55-1/8 73-1/8 98-1/2 84-5/8 84-5/8 123-5/8 123-5/8 142-5/8
Ring Flange to Base H 1-13/16 1-13/16 1-13/16 1-13/16 5/8 5/8 5/8 5/8 1
WIDTHS
Overall I 48-3/4 48-3/4 48-3/4 48-3/4 63 63 63 63 63
ID, Boiler J 36 36 36 36 48 48 48 48 48
Center to Entrance Box K 28-3/4 28-3/4 28-3/4 28-3/4 36 36 36 36 36
Center to Outside Hinge KK 22 22 22 22 29 29 29 29 29
Center to Lagging L 20 20 20 20 27 27 27 27 27
Base, Outside M 28 28 28 28 37-5/8 37-5/8 37-5/8 37-5/8 37-5/8
Base, Inside N 22 22 22 22 29-5/8 29-5/8 29-5/8 29-5/8 29-5/8
LWCO
NOTE: ALLOW 3 FEET
FOR DOOR SWING PER NEC
A2-15
Firetube Boilers Model CB Boilers
07-02
BOILER HP DIM 15 20 30 40 50 60 70 80/ 100A100/ 125A
HEIGHTS
Overall OO 66 66 66 66 72-5/8 72-5/8 72-5/8 72-5/8 72-5/8
Base to Vent Outlet O 53-1/2 53-1/2 53-1/2 53-1/2 70 70 70 70 70
Base to Return and outlet P 50 50 50 50 67 67 67 67 67
Davit (Front) DF - - - - - - - - -
Davit (Rear) DR - - - - - - - - -
Height of Base Q 8 8 8 8 12 12 12 12 12
Base to bottom of boiler R 12 12 12 12 16 16 16 16 16
BOILER CONNECTION
Waterfill Conn. Right & Left S 1 1 1 1 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4
Water Return - Threaded T 2-1/2 2-1/2 3 3 4 4 4 4 4
Water Outlet - Threaded
A
U 2-1/2 2-1/2 3 3 4 4 4 4 4
Air Vent v 1 1 1 1 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4
Drain, Front and Rear W 1 1 1 1-1/4 1-1/4 1-1/4 1-1/2 1-1/2 1-1/2
Auxiliary Connection X 1 1 1 1 1 1 1 1 1
VENT STACK
Diameter (flgd. connection) BB 6 6 8 8 10 10 12 12 12
Front Ring Flange to vent CL CC 4 4 5 5 6 6 7 7 7
MINIMUM CLEARANCES
Rear Door Swing DD 44 44 44 44 55 55 55 55 55
Front Door Swing EE 44 44 44 44 55 55 55 55 55
Tube Removal, Rear FF 56 56 74 100 84 84 123 123 142
Tube, Removal, Front GG 46 46 64 90 74 74 113 113 132
MINIMUM BOLER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM:
Rear of Boiler RR 163 163 199 251 231 231 309 309 347
Front of Boiler RF 153 153 189 241 221 221 299 299 337
Thru Window or Doorway RD 151 151 169 195 202 202 241 241 260
WEIGHT IN LBS
Water Capacity Flooded 1500 1460 1915 2585 3665 3500 5420 5250 5960
Approx. Ship. Wgt. 30 psigApprox. Ship. Wgt. 125 psig
30003300
31003400
36503880
43504580
68007100
70007300
80008350
81008450
88009150
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
A2-16
Model CB Boilers Firetube Boilers
07-02
Figure A2-4. Model CB Hot Water Boiler Dimensions (30 psig Design Pressure - 125 - 800 hp) - Sheet 1 of 2
A
BOILER HP DIM 125 150/175A 200 250 300 350 400 500 600 700 750 800
LENGTHS
Overall A 174-1/2 199-1/2 232-1/2 197 227 257 210 244 284 317 319 319
Shell B 125 149 180 144 171 201 152 186 222 255 255 255
Base Frame C 124 148 179 143 170 200 151 185 221 254 254 254
Front Head Extension D 30 31 33 29 32 32 26 26 30 30 32 32
Rear Head Extension E 19-1/2 19-1/2 19-1/2 24 24 24 32 32 32 32 32 32
Front Ring Flange to Return F 91 102 131 104-1/2 131-1/2 161-1/2 111-1/2 139 175 207 207 207
Front Ring Flange to Outlet G 114 136 167 131 158 188 146 170 206 239 239 239
Ring Flange to Base H 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2
WIDTHS
Overall I 75-1/2 75-1/2 75-1/2 93 93 93 113 113 113 113 113 113
ID, Boiler J 60 60 60 78 78 78 96 96 96 96 96 96
Center to Entrance Box K 42-1/2 42-1/2 42-1/2 51 51 51 62 62 62 62 62 62
Center to Outside Hinge KK 35 35 35 51 51 51 62 62 62 62 62 62
Center to Lagging L 33 33 33 42 42 42 51 51 51 51 51 51
Base, Outside M 52-1/2 52-1/2 52-1/2 64-3/8 64-3/8 64-3/8 72 72 72 72 72 72
Base, Inside N 44-1/2 44-1/2 44-1/2 52-3/8 52-3/8 52-3/8 56 56 56 56 56 56
LWCO
NOTE: ALLOW 3 FEET
FOR DOOR SWING PER NEC
A2-17
Firetube Boilers Model CB Boilers
07-02
Figure A2-4. Model CB Hot Water Boiler Dimensions (30 psig Design Pressure - 125 - 800 hp) - Sheet 2 of 2
BOILER HP DIM 125 150/175A 200 250 300 350 400 500 600 700 750 800
HEIGHTS
Overall OO 88 88 88 106 106 106 126 126 126 126 126 126
Base to Vent Outlet O 85 85 85 106 106 106 126 126 126 126 126 126
Base to Return and Outlet P 77 77 77 96 96 96 116 116 116 116 116 116
Davit (Front) DF - - - 104 104 104 125 125 125 125 125 125
Davit (Rear) DR 84-3/4 84-3/4 84-3/4 104 104 104 126 126 126 126 126 126
Height of Base Q 12 12 12 10 10 10 12 12 12 12 12 12
Base to Bottom of Boiler R 16 16 16 17 17 17 19 19 19 19 19 19
BOILER CONNECTION
Waterfill Conn. Right & Left S 1-1/2 1-1/2 2 2 2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2
Water Return FlangeA T 6 6 6 8 8 8 10 10 12 12 12 12
Water Outlet Flange U 6 6 6 8 8 8 10 10 12 12 12 12
Air Vent V 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 2 2 2 2 2 2
Drain, Front and Rear W 1-1/2 1-1/2 2 2 2 2 2 2 2 2 2 2
Auxiliary Connection X 1 1 1 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4
VENT STACK
Diameter (flgd. connection) BB 16 16 16 20 20 20 24 24 24 24 24 24
Front Ring Flange to vent CL CC 9 9 9 10-1/2 10-1/2 10-1/2 12-1/2 12-1/2 12-1/2 12-1/2 12-1/2 12-1/2
MINIMUM CLEARANCES
Rear Door Swing DD 32B 32B 32B 43B 43B 43B 53B 53B 53B 53B 53B 53B
Front Door Swing EE 67 67 67 89B 89B 89B 108B 108B 108B 108B 108B 108B
Tube Removal, Rear FF 115 139 170 131 157 187 135 169 205 238 238 238
Tube, Removal, Front GG 103 127 158 116 142 172 117 151 187 220 220 220
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM:
Rear of Boiler RR 307 355 417 364 417 477 395 463 535 601 601 601
Front of Boiler RF 260 308 370 303 356 416 322 390 462 528 528 528
Thru Window or Doorway RD 224 248 279 275 302 332 313 347 383 416 416 416
WEIGHT IN LBS
Water Capacity Flooded 7670 9295 11130 13880 16840 20090 20630 25925 31510 36600 36600 36600
Approx. Ship. Wgt. 30 psig 12100 12800 15100 21700 23900 27200 33400 38300 43900 51300 51300 51300
Approx. Ship. Wgt. 125 psig 12500 13200 15500 22500 24700 28000 34400 39300 44900 52300 52300 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.
A2-18
Model CB Boilers Firetube Boilers
07-02
BOILER HPDIMENSION (INCHES)
A B C D E
15 - 40, 50A 20 36 28 45 20
50 - 100, 100A, 125A 27 48 38 60 26
125 - 200, 175A 33 55 45 68 32
250 - 350 42 69 58 86 43
400 - 800 51 88 71 109 53
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
PLAN VIEW
Figure A2-6. Lifting Lug Location, Model CB Boilers - Sheet 1 of 2
A2-19
Firetube Boilers Model CB Boilers
07-02
BOILER HP VIEW
ALL DIMENSIONS IN INCHES
A B C D E
15 Steam A 51-3/4 12 38-3/4 - 2-1/2
Hot Water B 50-1/2 12 38-3/4 6 2-1/2
20 Steam A 51-3/4 12 38-3/4 - 2-1/2
Hot Water B 50-1/2 12 38-3/4 6 2-1/2
25 Steam A 51-3/4 12 56-3/4 - 2-1/2
Hot Water B 50-1/2 12 56-3/4 6 2-1/2
30 Steam A 51-3/4 12 56-3/4 - 2-1/2
Hot Water B 50-1/2 12 56-3/4 6 2-1/2
40 Steam A 51-3/4 12 82-3/4 - 2-1/2
Hot Water B 50-1/2 12 82-3/4 6 2-1/2
50A
Water B 50-1/2 12 82-3/4 6 2-1/2
50 All B 68 18 57 10 2-1/2
60 All B 68 18 57 10 2-1/2
70 All B 68 27 67 10 2-1/2
80 All B 68 27 67 10 2-1/2
100 All B 68 27 86 10 2-1/2
100A Hot Water B 68 27 67 10 2-1/2
125A Hot Water B 68 27 100 10 2-1/2
125 All B 80-1/4 29-3/4 70-1/2 10 2-1/2
150 All A 80-1/4 29-3/4 83-1/2 10 2-1/2
175A Hot Water B 80-1/4 29-3/4 83-1/2 10 2-1/2
200 All B 80-1/4 29-3/4 114-1/2 10 2-1/2
250 Steam B 99 36 72 10 3
Hot Water B 99 36 72 10 3
300 Steam B 99 36 99 10 3
Hot Water B 99 36 99 10 3
350 Steam B 99 36 129 10 3
Hot Water B 99 36 129 10 3
400 Steam B 119 34-1/2 83 10 3
Hot Water B 119 34-1/2 83 11 3
500 Steam B 119 34-1/2 117 11 3
Hot Water B 119 34-1/2 117 11 3
600 Steam B 119 34-1/2 153 11 3
Hot Water B 119 34-1/2 153 11 3
700 Steam B 119 34-1/2 186 11 3
Hot Water B 119 34-1/2 186 11 3
750 Steam B 119 34-1/2 186 11 3
Hot Water B 119 34-1/2 186 11 3
800 Steam B 119 34-1/2 186 11 3
Hot Water B 119 34-1/2 186 11 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
A2-20
Model CB Boilers Firetube Boilers
07-02
BOILER HP A B C D E F G X
15-20 6 8 59 17 33 3 22 9-3/4
25-30 6 8 77 17 33 3 22 9-3/4
40-50A 6 8 103 17 33 3 22 9-3/4
50-60 6 8 91 26 42 4 29-5/8 8-1/4
70-80, 100A 6 8 130 26 42 4 29-5/8 8-1/4
100, 125A 6 8 148 26 42 4 29-5/8 8-1/4
125 6 9 124 39-1/2 57-1/2 4 44-1/2 10-1/4
150, 175A 6 9 148 39-1/2 57-1/2 4 44-1/2 10-1/4
200 6 9 179 39-1/2 57-1/2 4 44-1/2 10-1/4
250 6 12 143 46 70 6 52-3/8 22-1/2
300 6 12 170 46 70 6 52-3/8 22-1/2
350 6 12 200 46 70 6 52-3/8 22-1/2
400 6 14 151 50 78 8 56 24-1/2
500 6 14 185 50 78 8 56 24-1/2
600 6 14 221 50 78 8 56 24-1/2
700-750-800 6 14 254 50 78 8 56 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
A2-21
Firetube Boilers Model CB Boilers
07-02
PERFORMANCE DATA
Efficiency Tables A2-7, A2-8, A2-9, A2-10, A2-11, and A2-12 show pre-dicted fuel-to-steam efficiencies (including radiation and con-vection losses) for Cleaver-Brooks Model CB Firetube boilers. For specific efficiencies on firetube boiler offerings not listed here, contact your local Cleaver-Brooks authorized representa-tive.
Cleaver-Brooks offers an industry leading fuel-to-steam boiler efficiency guarantee for Model CB Firetube Boilers. The guar-antee is based on the fuel-to-steam efficiencies shown in the efficiency tables and the following conditions. The efficiency percent number is only meaningful if the specific conditions of the efficiency calculations are clearly stated in the specifica-tion (see Cleaver-Brooks publication CB-7768 for a detailed description of efficiency calculations).
The boiler manufacturer shall guarantee that, at the time of startup, the boiler will achieve fuel-to-steam efficiency (as shown in the tables listed above) at 100% firing rate (add effi-ciency guarantees at 25%, 50%, and 75% of rating, if required). If the boiler(s) fail to achieve the corresponding guaranteed efficiency as published, the boiler manufacturer will rebate, to the ultimate boiler owner, five thousand dollars ($5,000) for every full efficiency point (1.0%) that the actual efficiency is below the guaranteed level. The specified boiler efficiency is based on the following conditions.
1. Fuel specification used to determine boiler efficiency:
Natural Gas
Carbon, % (wt) = 69.98Hydrogen, % (wt) = 22.31Sulfur, % (wt) = 0.0Heating value, Btu/lb = 21,830
No. 2 Oil
Carbon, % (wt) = 85.8Hydrogen, % (wt) = 12.7Sulfur, % (wt) = 0.2Heating value, Btu/lb = 19,420
No. 6 Oil
Carbon, % (wt) = 86.6Hydrogen, % (wt) = 10.9Sulfur, % (wt) = 2.09Heating value, Btu/lb = 18,830
2. Efficiencies are based on ambient air temperature of 80 F, relative humidity of 30%, and 15% excess air in the exhaust flue gas.
3. Efficiencies are based on manufacturers published radiation and convection losses. (For Cleaver-Brooks radiation and con-vection losses, see Boiler Efficiency Facts Guide, publication
number CB-7767).
4. Any efficiency verification testing will be based on the stack loss method.
When specifying the efficiencies in the tables, be sure to include the specific guarantee conditions to maximize the effectiveness of your efficiency specification. If you have any questions regarding the efficiency specifications, please con-tact your local Cleaver-Brooks authorized representative. For efficiencies 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 efficiency tables.
When the operating steam pressure is above 125 psig, esti-mated efficiency can be calculated as follows:
Example:
Boiler: 350 hp.
Fuel: natural gas.
Operating steam pressure: 200 psig.
Find the fuel-to-steam efficiency at 100% firing rate. From Table A2-8 for a 350 hp boiler operating at 100% firing rate and an operating steam pressure of 125 psig, the efficiency is 82.5%.
Using Figure A2-8, note that the stack temperature increases 36 F at the higher operating pressure. To estimate boiler effi-ciency, use this rule of thumb: For every 40 F increase in stack temperature, efficiency decreases by 1%. Since the stack tem-perature rise is 36 F, the decrease in the boiler efficiency at 200 psig operating pressure is calculated as follows: 36/40 = .9%. Therefore, the boiler efficiency at 200 psig operating pressure is 82.5 - .9 = 81.6%.
Emissions The 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 flue gas recirculation on Model CB (LE) (refer to Section A3).
The Cleaver-Brooks IFGR packages are integrated boiler/burner/control packages designed specifically for Cleaver-Brooks boilers. For detailed information on Cleaver-Brooks IFGR packages, refer to Model CB (LE) in Section A3.
NOTICE
The data in Table A2-13 represents typical emission levels only. Guaranteed emission levels are available from your local Cleaver-Brooks authorized represen-tative.
A2-22
Model CB Boilers Firetube Boilers
07-02
BOILER HP
FIRING RATE (%)
25 50 75 100
50 83.0 83.2 82.9 82.4
60 82.9 83.1 82.7 82.3
70 84.5 84.7 84.3 83.9
80 84.6 84.8 84.5 84.0
100 84.4 85.0 84.8 84.4
125 83.3 83.6 83.4 83.2
150 84.4 84.6 84.5 84.3
200 85.0 85.3 85.1 84.9
250 85.0 84.7 84.0 83.3
300 85.3 85.3 84.6 83.9
350 85.3 85.7 85.2 84.5
400 84.5 84.7 84.6 84.4
500 85.5 85.7 85.5 85.2
600 85.7 86.0 85.8 85.6
700 85.7 86.2 86.0 85.7
750 85.8 86.1 85.9 85.6
800 85.8 86.1 85.9 85.6
Table A2-7. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 10 psig, Natural Gas
BOILERHP
FIRING RATE (%)
25 50 75 100
50 80.2 80.5 80.4 80.1
60 80.1 80.4 80.3 80.1
70 81.7 82.0 81.9 81.7
80 81.8 82.1 82.0 81.8
100 81.5 82.4 82.3 82.2
125 80.4 80.9 81.0 81.0
150 81.5 82.0 82.0 82.1
200 82.2 82.7 82.7 82.7
250 82.0 82.0 81.6 81.3
300 82.6 82.7 82.2 81.9
350 82.6 83.2 82.8 82.5
400 81.8 82.2 82.4 82.2
500 82.8 83.2 83.3 83.1
600 82.9 83.5 83.6 83.5
700 83.0 83.6 83.6 83.6
750 83.1 83.6 83.7 83.5
800 83.1 83.6 83.7 83.5
Table A2-8. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 125 psig, Natural Gas
BOILERHP
FIRING RATE (%)
25 50 75 100
50 86.8 87.0 86.6 86.1
60 86.7 86.9 86.5 86.0
70 88.4 88.6 88.2 87.7
80 88.5 88.7 88.3 87.8
100 88.2 88.5 88.3 88.0
125 87.2 87.4 87.2 87.0
150 88.4 88.5 88.3 88.1
200 88.9 89.2 88.9 88.7
250 88.8 88.5 87.8 87.1
300 89.1 89.2 88.4 87.7
350 89.1 89.5 89.0 88.4
400 88.4 88.5 88.4 88.1
500 89.4 89.5 89.3 89.2
600 89.5 89.9 89.7 88.4
700 89.6 90.0 89.8 89.6
750 89.7 90.0 89.8 89.5
800 89.7 90.0 89.8 89.5
Table A2-9. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 10 psig, No. 6 Oil
BOILERHP
FIRING RATE (%)
25 50 75 100
50 83.9 84.2 84.0 83.8
60 83.8 84.1 83.9 83.8
70 85.5 85.8 85.6 85.4
80 85.6 85.9 85.7 85.6
100 84.6 85.8 85.9 85.8
125 84.1 84.6 84.7 84.8
150 85.3 85.8 85.8 85.8
200 86.0 86.5 86.4 86.5
250 85.8 85.7 85.3 85.0
300 86.3 86.4 86.0 85.6
350 86.4 87.0 86.6 86.2
400 85.5 85.9 86.0 85.9
500 86.5 86.9 87.0 86.9
600 86.7 87.3 87.4 87.2
700 86.8 87.3 87.4 87.4
750 86.9 87.4 87.5 87.3
800 86.9 87.4 87.5 87.3
Table A2-10. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 125 psig, No 6 Oil
A2-23
Firetube Boilers Model CB Boilers
07-02
BOILERHP
FIRING RATE (%)
25 50 75 100
50 86.5 86.7 86.3 85.8
60 86.3 86.6 86.2 85.7
70 87.9 88.2 87.8 87.3
80 88.1 88.3 87.9 87.4
100 87.8 88.4 88.1 87.7
125 86.7 86.9 86.7 86.6
150 87.8 88.0 87.8 87.6
200 88.4 88.7 88.4 88.2
250 88.3 88.1 87.4 86.7
300 88.6 88.7 88.0 87.3
350 88.6 89.0 88.5 87.8
400 87.9 88.1 87.9 87.6
500 88.9 89.0 88.9 88.6
600 89.0 89.4 89.2 89.0
700 89.1 89.5 89.3 89.1
750 89.2 89.5 89.3 89.0
800 89.2 89.5 89.3 89.0
Table A2-11. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 10 psig, No. 2 Oil
BOILER HP
FIRING RATE (%)
25 50 75 100
50 83.6 84.0 83.8 83.5
60 83.5 83.8 83.7 83.5
70 85.1 85.4 85.3 85.1
80 85.2 85.6 85.4 85.3
100 84.8 85.7 85.6 85.5
125 83.7 84.2 84.3 84.3
150 84.8 85.3 85.3 85.4
200 85.6 86.0 86.0 86.0
250 85.3 85.3 84.9 84.7
300 85.9 86.0 85.5 85.2
350 85.9 86.6 86.1 85.8
400 85.1 85.5 85.6 85.5
500 86.1 86.5 86.6 86.4
600 86.2 86.8 86.9 86.8
700 86.3 86.9 87.0 86.9
750 86.4 86.9 87.0 86.8
800 86.4 86.9 87.0 86.8
Table A2-12. Predicted Fuel-to-Steam Efficiencies (%), Model CB Boilers - 125 psig, No. 2 Oil
Figure A2-8. Predicted Stack Temperature Increase for Pressure Greater Than 125 psig
A2-24
Model CB Boilers Firetube Boilers
07-02
ENGINEERING DATA The 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.
Blowdown Water Requirements Some 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 repre-sented by 4 inches of water at normal operating level for Cleaver-Brooks Model CB Boilers.
POLLUTANTESTIMATED LEVELS - UNCONTROLLED
NATURAL GAS NO. 2 OILB NO. 6 OILC
COppmA 200 90 95
Lb/MMBtu 0.15 0.07 0.075
NOxppmA 100 185 502
Lb/MMBtu 0.12 0.25 0.67
SOxppmA 1 278 278
Lb/MMbtu 0.001 0.52 0.52
HC/VOCsppmA 40 50 70
Lb/MMBtu 0.016 0.025 0.035
P