section a2 calderas cleaver brooks especificaciones tecnicas

8/20/2019 Section a2 Calderas Cleaver Brooks Especificaciones Tecnicas

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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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 Design Pressure - 125 - 800 hp) - Sheet 1 of 2 . . . . . . A2-16

Figure A2-5. Space Required to Open Rear Head on Model CB Boilers Equipped with Davits . . . . . . . . . . . . . . . . . . . A2-18

Figure A2-6. Lifting Lug Location, Model CB Boilers - Sheet 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-18

Figure A2-7. Model CB Boiler Mounting Piers 20

Figure A2-8. Predicted Stack Temperature Increase for Pressure Greater Than 125 psig . . . . . . . . . . . . . . . . . . . . . . . . A2-23

Section A2

MODEL CB BOILERS

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Figure A2-9. Standard Gas Train Connection Size and Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-34

Figure A2-10. Typical Gas Piping Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-35

Figure A2-11. Model CB Gas Train Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-36

Figure A2-12. No. 2 Oil Connection Size, Location and Recommended Line Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-37

Figure A2-13. No. 6 Oil Connection Size, Location and Recommended Line Sizes, Model CB Boiler . . . . . . . . . . . . . . A2-37

Figure A2-14. No. 2 Oil Piping, Single Boiler Installation, Remote Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-38

Figure A2-15. No.2 Oil Piping, Single Boiler Installation Oil Pump Integral with Boiler . . . . . . . . . . . . . . . . . . . . . . . . A2-38

Figure 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 . . . . . . . . . . . . . . . . . . . . . A2-39

Figure A2-18. No. 2 Oil Piping, Multiple Boiler Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-40

Figure A2-19. No. 6 Oil Piping, Single Boiler Installation, Remote Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-40

Figure A2-20. No. 6 Oil Piping, Multiple Boiler Installation, Remote Oil Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-41

Figure A2-21. No. 6 Oil Piping, Multiple Boiler Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-41

Figure A2-22. No. 2 Oil Transfer Tank Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-42

Figure A2-23. Typical Fuel Storage Tank Arrangement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-42

Figure A2-24. Typical Cross Section of Bundled Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-43

Figure A2-25. Schematic of Standard Alstrom Hot Water Safety-Type Preheating System . . . . . . . . . . . . . . . . . . . . . . . A2-43

Figure A2-26. Boiler Room Length (Typical Layout) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-45

Figure A2-27. Boiler Room Width (Typical Layout) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-45

Figure A2-28. Breeching Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-46

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 . . . . . . . . . . . . . . . . . . A2-23Table 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 A2-26. 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

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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.

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• 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


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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 @212°F)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 @ 212°F)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


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 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.


6/66

A2-6


BOILER HP 15

c

20

c

30

c

40

c

50 60 70 80 100

RATINGS - SEA LEVEL TO 3000 FT

Rated Cap Btu Output (1000 Btu/hr) 502 670 1004 1339 1674 2009 2343 2678 3348

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

Heavy Oil (gph)

B

- - - - 14.0 16.5 19.5 22.5 28.0

Gas (cfh)MBtu- natGas (Therm/hr)

6256.3

8358.4

125512.6

167516.8

209521.0

251025.1

293029.3

335033.5

418541.9


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 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 A2-3. Model CB Hot Water Boiler Ratings (15 - 100 hp)

Table A2-4. Model CB Hot Water 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. Btu Output(1000 Btu/hr)

4184 5021 6695 8369 10043 11716 13390 16738 20085 23432 25106 26779

APPROXIMATE FUEL CONSUMPTON AT RATED CAPCITY

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 97.5 111.5 139.5 167.5 195.5 209.3 223.4

Gas (cfh)MBtu-Natural Gas(Therm/hr)

523052.3

628062.8

837083.7

10460104.6

12555125.5

14650146.5

16750167.5

20925209.3

25100251.0

29300293.0

31385313.8

33480334.8


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

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 (Oilfiring 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 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.


7/66

A2-7

Firetube Boilers Model CB Boilers

VALVESETTING

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

VALVESREQ'D

OUTLET

SIZE(IN.)

NO. OF

VALVESREQ'D

OUTLET

SIZE(IN.)

NO. OF

VALVESREQ'D

OUTLET

SIZE(IN.)

NO. OF

VALVESREQ'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 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) 12 1

150 1 3 2(1) 2

(1) 1-1/22 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) 32

(1) 2-1/2(1) 2

2 2 2(1) 2

(1) 1-1/22 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) 22 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) 2-1/23

(1) 2(2) 2-1/2

2 2-1/2 2(1) 2-1/2

(1) 22 2 2

(1) 2(1) 1-1/2

500 3 3 3 2-1/2 3(2) 2-1/2

(1) 22 2-1/2 2

(1) 2-1/2 (1) 2

2 2

600 4(1) 2-1/2

(3) 34

(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)2-1/25

(3) 2-1/2 (2) 2

4(3) 2-1/2

(1) 23

(2) 2-1/2(1) 2

2 2-1/2 2 2-1/2

750 5 (3) 3

(2)2-1/25

(3) 2-1/2 (2) 2

4(3) 2-1/2

(1) 23

(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


8/66

A2-8

Model CB Boilers Firetube Boilers

VALVESETTING

30 PSIG HW 60 PSIG HW 100 PSIG HW 125 PSIG HW

BOILERHP

NO. OFVALVESREQ'D

OUTLETSIZE(IN.)

NO. OFVALVESREQ'D

OUTLETSIZE(IN.)

NO. OFVALVESREQ'D

OUTLETSIZE(IN.)

NO. OFVALVESREQ'D

OUTLETSIZE(IN.)

15 1 1 1 1 1 1 1 120 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) 2-1/21 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) 2-1/21 2-1/2 1 2-1/2 1 2

300 2 2-1/2 2 (1) 1

(1) 2-1/21 2-1/2 1 2-1/2

350 3(2) 2-1/2

(1) 12

(1) 2-1/2(1) 2

1 2-1/2 1 2-1/2

400 3 (1) 2

(2) 2-1/22

(1) 2(1) 2-1/2

2 (1) 1

(1) 2-1/21 2-1/2

500 4 (1) 1

(3) 2-1/22 (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) 23

(1) 1-1/4(2) 2-1/2

2(1) 2

(1) 2-1/22

(1) 2-1/2(1) 1-1/4

700 5 (1) 1

(4) 2-1/23

(1) 2(2) 2-1/2

2 (2) 2-1/2 2(1) 2-1/2

(1) 2

750 5 (1) 1

(4) 2-1/23

(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


9/66

A2-9


NOTES


10/66

A2-10


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 toNozzle - 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


15 to 100 hp) Sheet 1 of 2

NOTE: ALLOW 3 FEET

FOR DOOR SWING

PER NEC


11/66

A2-11


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 CL

Steam NozzleBlowdown, Front and Rear

T

YW

1

1-1/21

1

1-1/21

1

21

1

21

1

31-1/4

1

31-1/4

1

31-1/4

1

31-1/4

1

4

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



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 dimensionprints.A. ANSI 150 psig flange.B. ANSI 300 psig flange.C. 15 thru 100 hp standard hinged door.


15 to 100 hp) Sheet 2 of 2


12/66

A2-12


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 Ouside 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


13/66

A2-13


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 86 86 86 106 106 106 126 126 126 126 126 126

Base to Vent Outlet O 85 85 85 106 106 106 126 126 126 126 126 126

Base to Steam Outlet (150 psigonly)

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


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



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


14/66

A2-14


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 80/100A

100/125A

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


15/66

A2-15


BOILER HP DIM 15 20 30 40 50 60 70 80/100A

100/125A

HEIGHTS

Overall OO 66 66 66 66 72-5/8 72-5/8 72-5/8 72-5/8 72-5/8Base 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 Rmoval, 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 psig

Approx. Ship. Wgt. – 125 psig

3000

3300

3100

3400

3650

3880

4350

4580

6800

7100

7000

7300

8000

8350

8100

8450

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


16/66

A2-16


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


17/66

A2-17


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 Rmoval, 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


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 constructionby certified dimension prints.2. Control panel relocated on boilers 250 hp and up.3. Air compressor belt dirven 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.


18/66

A2-18


BOILER HP DIMENSION (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 boilers are standardly equipped with hinges. Davitavailable 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


19/66

A2-19


BOILERHP

VIEWALL 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


20/66

A2-20


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

accessiblity 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


21/66

A2-21


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) = 69.98

Hydrogen, % (wt) = 22.31Sulfur, % (wt) = 0.0

Heating value, Btu/lb = 21,830

• No. 2 Oil

Carbon, % (wt) = 85.8

Hydrogen, % (wt) = 12.7

Sulfur, % (wt) = 0.2


• No. 6 Oil

Carbon, % (wt) = 86.6

Hydrogen, % (wt) = 10.9

Sulfur, % (wt) = 2.09


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 manufacturer’s 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 notlisted, 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 availablefrom your local Cleaver-Brooks authorized represen-

tative.

http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://www.speci-fire.com/speci-fire_pdf/A3-CB-LE.pdfhttp://www.speci-fire.com/speci-fire_pdf/A3-CB-LE.pdfhttp://www.speci-fire.com/speci-fire_pdf/A3-CB-LE.pdfhttp://www.speci-fire.com/speci-fire_pdf/A3-CB-LE.pdfhttp://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/http://0.0.0.0/


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A2-22


BOILERHP

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 A2-1. Predicted Fuel-to-Steam EfÞciencies (%),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 A2-2. Predicted Fuel-to-Steam EfÞciencies (%),

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


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 A2-4. Predicted Fuel-to-Steam EfÞciencies (%),Model CB Boilers - 125 psig, No 6 Oil

(Rev. 8/2000)


23/66

A2-23

Firetube Boilers Model CB Boilers

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 A2-5. Predicted Fuel-to-Steam EfÞciencies (%),Model CB Boilers - 10 psig, No. 2 Oil

BOILERHP

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 85.5500 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


Model CB Boilers - 125 psig, No. 2 Oil

Figure A2-1. Predicted Stack Temperature Increase for Pressure Greater Than 125 psig

(Rev. 8/2000)


24/66

A2-24


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 Board’s 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

NOx ppmA

100 185 502Lb/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

PMppmA - - -

Lb/MMBtu 0.01 0.025 0.160

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 weightSulfur content = 0.5% by weightAsh content = 0.01% by weight

C. Based on fuel constituent levels of:Fuel-bound nitrogen content = 0.7% by weightSulfur content = 0.5% by weightAsh content = 0.1% by weightConradson carbon residue = 16% by weight

Table A2-13. Model CB Boiler Emission Data

BOILERHP

HEATING SURFACE (SQ-FT)

FIRESIDE WATERSIDE

15 75 85

20 100 109

25 125 144

30 150 162

40 200 219

50 250 266

60 300 323

70 350 388

80 400 441

100 500 544

125 625 679

150 750 820

200 1000 1092

250 1250 1346

300 1500 1623

350 1750 1932

400 2000 2151

500 2500 2691

600 3000 3262

700 3500 3810

750 3500 3810

800 3500 3810

Table A2-14. Heating Surface, Model CB Boilers


25/66

A2-25


BOILER HPSTEAM VOLUME CU-FT STEAM RELIEVING AREA, SQ-IN

HIGH PRESSUREA LOW PRESSUREB HIGH PRESSUREA LOW PRESSUREB

15 2.9 5.9 1356 1637

20 2.9 5.9 1356 1637

25 & 30 3.9 7.9 1817 2195

40 5.3 10.8 2485 2999

50 9.7 16.0 2959 3372

60 9.7 16.0 2959 3372

70 14.3 23.7 4367 4975

80 14.3 23.7 4367 4975

100 16.6 27.4 5053 5757

125 25.4 36.6 5371 5887

150 30.7 44.3 6511 7138

200 37.7 54.4 7985 8752

250 49.2 70.6 7980 8695

300 59.5 85.3 9651 10516

350 70.9 101.7 11507 12538

400 75.8 102.5 10148 10960

500 95.0 128.5 12722 13740

600 115.4 156.1 15448 16685

700-750-800 134.0 181.3 17948 19385

NOTE: Based on normal water level.A. Based on 150 psig design pressure.B. Based on 15 psig design pressure.

Table A2-15. Steam Volume and Disengaging Area

BOILER

HP

BOILER

OUTPUT

(1000)

BTU/HR

SYSTEM TEMPERATURE DROP - DEGREES F

10 20 30 40 50 60 70 80 90 100

MAXIMUM CIRCULATING RATE - GPM

15 500 100 50 33 25 20 17 14 12 11 10

20 670 134 67 45 33 27 22 19 17 15 13

30 1005 200 100 67 50 40 33 29 25 22 20

40 1340 268 134 89 67 54 45 38 33 30 27

50 1675 335 168 112 84 67 56 48 42 37 33

60 2010 402 201 134 101 80 67 58 50 45 40

70 2345 470 235 157 118 94 78 67 59 52 47

80 2680 536 268 179 134 107 90 77 67 60 54

100 3350 670 335 223 168 134 112 96 84 75 67

125 4185 836 418 279 209 168 140 120 105 93 84

150 5025 1005 503 335 251 201 168 144 126 112 100

200 6695 1340 670 447 335 268 224 192 168 149 134

250 8370 1675 838 558 419 335 280 240 210 186 167

300 10045 2010 1005 670 503 402 335 287 251 223 201

350 11720 2350 1175 784 587 470 392 336 294 261 236400 13400 2680 1340 895 670 535 447 383 335 298 268

500 16740 3350 1675 1120 838 670 558 479 419 372 335

600 20080 4020 2010 1340 1005 805 670 575 502 448 402

700 23450 4690 2345 1565 1175 940 785 670 585 520 470

750 25106 5025 2510 1675 1255 955 840 720 625 555 500

800 26780 5360 2680 1785 1340 1075 895 765 670 595 535

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.

Table A2-16. Water Circulation Rate and Temperature Drop for Hot Water Boiler


26/66

A2-26


BOILER HP

OPERATINGPRESSURE

PSIG15 20 25 30 40 50 60 70 80 100 125 150 200 250 300 350 400 500 600 700 750 800

15 4 4 4 4 6 6 6 6 6 8 8 8 10 10 12 12 12 12 12 12 12 12

30 2 2 2.5 2.5 3 4 4 4 4 6 6 6 8 8 8 10 10 10 12 12 12 12

40 2 2 2.5 2.5 3 3 4 4 4 6 6 6 6 8 8 8 10 10 10 12 12 12

50 1.5 2 2 2.5 2.5 3 3 4 4 4 6 6 6 6 8 8 8 8 10 10 12 12

75 1.5 2 2 2 2.5 3 3 3 4 4 4 4 6 6 6 8 8 8 8 10 10 10

100 1.5 1.5 2 2 2 3 3 3 3 4 4 4 6 6 6 6 6 8 8 8 8 10

125 1.5 1.5 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 8 8 8 8 8

150 1.5 1.5 2 2 2 2.5 2.5 2.5 2.5 2.5 3 3 4 4 6 6 6 6 6 8 8 8

200 1.5 1.5 2 2 2 2.5 2.5 2.5 2.5 2.5 2.5 3 4 4 4 4 6 6 6 6 6 6

250 1.5 1.5 2 2 2 2 2 2 2 2 2.5 2.5 3 4 4 4 4 6 6 6 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): 3x2-1/2x30, 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 decreasethe standard size, request the change with your local Cleaver-Brooks authorized representaive.

Table A2-17. Recommended Steam Nozzle Size (To Maintain 4000 to 5000 fpm Nozzle Velocity)

BOILERHP

BOILERCAPACITY(LBS/HR)

OPERATING PRESSURES (PSIG)

50 75 100 125 150 175 200 250

100 3450 3 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2 2-1/2

125 4313 4 3 3 3 3 2-1/2 2-1/2 2-1/2

150 5175 4 4 3 3 3 3 2-1/2 2-1/2

200 6900 4 4 4 3 3 3 3 3

250 8625 4 4 4 4 3 3 3 3

300 10350 6 4 4 4 4 4 4 3

350 12025 6 6 4 4 4 4 4 3

400 13800 6 6 4 4 4 4 4 4

500 17210 6 6 6 6 4 4 4 4

600 20700 8 8 6 6 6 4 4 4

700 24150 8 8 6 6 6 6 6 6

750 25875 8 8 6 6 6 6 6 6

800 27600 8 8 6 6 6 6 6 6

Note: Valve sizes (300 psig flanges) given in inches.

Table A2-18. Recommended Non-Return Valve Size


27/66

A2-27


Sound Level

Table 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 alti-

tude condistions can increse sound levels.

Units

The units for the sound level tables are dBA (decibels, mea-

sured 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 pres-

sure 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 mea-

sured on the boiler centerline 4-1/2 feet vertically above thebottom of the base rails and 3 feet horizontally in front of the

end of the blower motor or front surface of the electrical cabi-

net.

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.

BOILER HP WATER (GAL.)

15-20 26

25-30 34

40 47

50-60 55

70-80 80

100 93

125 97

150 118

200 145

250 146

300 176

350 210

400 183

500 230

600 280

700-750 325

800 325

NOTE: Quantity of water removed from boiler by lowering normal wa-ter line 4".

Table A2-19. Model CB Blowdown Tank Sizing Information

BOILERHP

50 60 70 80 100 125A 125 150 200 250 300 350 400 500 600 700 750 800

HFO, dBA 79 79 79 79 81 82 83 83 83 88 88 89 83 83 83 85 87 88

LFO, dBA 78 78 78 78 79 79 81 82 81 86 86 85 80 82 82 82 83 84

HFG, dBA 77 77 78 78 78 79 81 80 82 84 86 86 82 82 82 85 86 87

LFG, dBA 72 73 74 75 75 75 78 77 78 81 82 83 80 81 81 82 83 84

NOTES:1. Boiler No. followed by an “a” designates hot water boilers furnished in a smaller vessel size with additional tubesin 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 A2-20. Sound Pressure Level Summary (50 - 800 hp)

FIRINGRATE

FUEL

SOUND LEVEL

dBA

OCTAVE BAND SOUND PRESSURE LEVELS IN dB RE .0002 MICROBAR

31Hz 63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz 16kHz

40HPA

LFG 76 73 75 72 74 76 70 67 68 64 57

LFO 77 73 75 75 76 75 72 67 66 66 58

HFG 79 81 78 74 80 78 71 69 68 64 58

HFO 79 72 77 77 81 78 73 69 66 66 58

NOTE:ABBREVIATIONS:HF = High Fire

LF = Low FireO = OilG = Gas

A. The data shown above was taken on the 40 hp. Since the highest Sound Level is below 80dBA, no additional 36" diameter Firetubes were tested. If Sound Level predictions are requiredfor the 15 thru 30 hp, use the values shown for the 40 hp.

Table A2-21. Model CB Boiler Sound Pressure Level Details (40 hp)


28/66

A2-28


FIRINGRATEFUEL

SOUNDLEVEL

dBA



50 HP

LFG 72 71 65 71 71 70 68 63 60 53 46

LFO 78 71 76 78 73 72 72 76 61 56 54

HFG 77 72 68 75 76 74 74 66 61 54 47

HFO 79 72 70 75 75 77 77 70 63 56 54

60 HP

LFG 73 70 75 72 72 73 68 61 56 50 45

LFO 78 68 77 74 74 75 74 71 58 53 48

HFG 77 73 75 72 72 75 76 63 55 50 44

HFO 79 75 75 75 75 77 77 72 59 52 45

70 HP

LFG 74 70 70 75 74 73 71 62 56 51 46

LFO 78 70 73 77 74 75 74 70 59 53 57

HFG 78 72 72 77 78 75 76 68 58 52 57

HFO 79 73 73 80 77 77 76 70 60 54 48

80 HP

LFG 75 70 75 75 73 75 76 66 62 62 53

LFO 78 69 77 76 74 76 74 73 63 62 57

HFG 78 72 74 78 75 75 76 57 61 59 52

HFO 79 75 75 75 74 76 75 69 62 59 54

100 & 100A HP

LFG 75 69 69 75 76 73 71 65 63 59 50

LFO 79 68 73 78 78 75 79 76 63 59 54

HFG 78 69 70 77 77 74 74 69 63 59 50

HFO 81 68 70 77 78 78 77 71 64 59 57

125A HP

LFG 75 69 70 76 78 73 71 65 63 59 50

LFO 79 68 73 78 78 75 74 76 63 59 54

HFG 79 70 70 77 79 75 75 69 63 59 50

HFO 82 70 71 78 80 79 78 71 64 59 57

NOTES:1. ABBREVIATIONS:HF = High FireLF = Low FireO = OilG = Gas2. Boiler HP followed by an “A” designates hot water boilers furnished in a smaller vessel size with additional tubes in the upper portion ofthe vessel.

Table A2-22. Model CB Boiler Sound Pressure Level Details (50 - 125 hp)


29/66

A2-29


FIRINGRATEFUEL

SOUNDLEVEL

dBA



125 HP

LFG 78 76 70 78 80 80 73 65 58 56 51

LFO 81 80 75 82 82 81 77 74 67 63 60

HFG 81 79 73 87 78 80 76 71 64 57 51

HFO 83 78 78 89 79 82 81 77 64 70 58

150 & 175A HP

LFG 77 75 70 78 76 77 72 67 63 58 55

LFO 82 76 68 80 78 79 75 71 66 60 58

HFG 80 71 72 82 76 80 76 71 64 58 52

HFO 83 70 71 83 79 82 77 73 65 60 55

200 HP

LFG 78 74 74 78 79 79 72 65 58 54 50

LFO 81 76 74 79 77 81 75 71 62 60 55

HFG 82 77 76 82 79 81 78 72 62 55 50

HFO 83 76 76 81 78 82 79 73 66 59 53

NOTES:1. ABBREVIATIONS:HF = HighFireLF = Low FireO = OilG = Gas2. Boiler HP followed by an “A” designates hot water boilers furnished in a smaller vessel size with additional tubes in the upper portion of the vessel.


FIRING

RATEFUEL

SOUNDLEVEL

dBA



250 HP

LFG 81 72 81 85 84 82 75 68 60 56 53

LFO 86 76 87 87 85 84 82 73 70 76 68

HFG 84 78 85 84 84 84 79 72 62 55 50

HFO 88 79 84 84 84 85 86 74 68 67 65

300 HP

LFG 82 75 74 80 83 83 78 71 65 58 53

LFO 86 80 77 80 84 82 81 75 75 77 72

HFG 86 77 78 84 87 85 82 77 67 60 53

HFO 88 82 80 84 85 85 83 79 72 67 69

350 HP

LFG 83 75 78 87 86 83 78 70 58 55

LFO 85 82 79 84 84 84 84 70 66 66

HFG 86 78 79 87 85 84 84 72 65 61

HFO 89 82 82 85 85 86 86 79 68 68

NOTE:ABREVIATIONS:HF = High FireLF = Low FireO = OilG = Gas



30/66

A2-30


Sound Pressure

On large size boilers, the need for auxiliary equipment, and the

necessary interconnecting piping, make it impractical (and

sometimes impossible) to provide a boiler testing environment

that is suitable for obtaining the data needed to develop Sound

Pressure Power levels.

Typical Values

Sound pressure levels (dBA) for identical boilers will vary

between boiler rooms. In addition, variations will occur

between different people using different sound meters on the

same boiler. And finally, no two boilers can be expected togive precisely the same sound levels. For these reasons, we can

only predict, but not guarantee, sound levels (dBA).

Octave Band

When predicting sound pressures in octave bands (e.g., dB at

125 Hz), even greater variations between boilers, between

sound meters, and between operators can be expected. These

larger variations in the low and high frequencies make octave

band levels a less reliable method of reporting than A-scale

sound levels. (Since A-scale sound levels are dominated by

mid-frequency sounds, the A-scale sound levels between two

boilers can be in reasonable agreement even though the low

and high frequencies of octave band measurement do not

closely correspond).

Gas-Fired Burners

NOTICE

A gas pressure regulator must be installed in the gaspiping to each boiler. Gas pressure regulators forModel CB Firetube Boilers are sized and selected on

a job-by-job basis. Therefore, gas pressure requirements shown in Tables A2-26 , A2-27 , A2-28 , A2-29 ,

and A2-30 list "regulated" gas pressure. Regulatedgas pressure is the pressure downstream of the gas

pressure regulator. Total gas pressure required forthe boiler equals regulated gas pressure plus the

pressure drop of the selected gas pressure regulator.

FIRINGRATEFUEL

SOUNDLEVEL

dBA



400 HP

LFG 80 70 79 85 87 78 70 66 61 55 50

LFO 80 74 83 86 87 78 71 67 63 58 50

HFG 82 73 84 87 89 80 74 70 64 57 50

HFO 83 75 85 87 89 80 75 71 73 58 52

500 HP

LFG 81 78 83 87 87 78 73 66 62 58 54

LFO 82 77 83 87 87 81 75 70 63 59 55

HFG 82 79 87 87 84 79 76 70 63 57 55

HFO 83 77 87 87 84 81 77 71 62 58 55

600 HP

LFG 81 78 83 87 87 79 73 66 62 58 54

LFO 82 77 83 87 87 81 75 70 63 59 55

HFG 82 79 87 87 84 79 76 70 63 57 55

HFO 83 77 87 87 84 81 77 71 62 58 55

700 HP

LFG 82 80 87 91 87 80 75 70 66 62 56

LFO 82 79 88 90 87 81 76 72 67 63 57

HFG 85 80 90 89 89 82 77 76 66 64 57

HFO 85 81 90 91 89 82 80 77 68 65 57

750 HPLFG 83 82 89 93 87 81 76 71 67 63

LFO 83 80 90 92 87 82 77 73 68 64

HFG 86 81 91 90 89 83 79 89 68 66

HFO 87 82 91 92 89 83 81 80 70 68

800 HP

LFG 84 83 90 94 87 82 77 73 68 64

LFO 84 82 91 93 87 82 78 74 68 65

HFG 87 82 92 91 89 83 81 82 70 68

HFO 88 83 92 92 89 83 82 83 71 70

NOTE:ABBREVIATIONS:HF = High FireLF = Low FireO = OilG = Gas



31/66

A2-31


Table A2-26 shows regulated gas pressure requirements for

Model CB Boilers with standard or FM gas trains.

Table A2-27 shows regulated gas pressure requirements for

Model CB Boilers with IRI gas trains.

Table A2-28 and A2-29 show regulated gas pressure with over

and undersized gas trains.

Table A2-30 shows minimum required gas pressure altitude

conversion.

Gas Pressure Regulator

The following items should be considered when selecting a

regulator:

• Pressure Rating: The regulator must have a pressure rating at

least equivalent to that of the gas distribution system.

• Capacity: The capacity can be determined by multiplying the

maximum burning rate (CFH) by 1.15, see Table A2-31. This

15 percent over-capacity rating of the regulator provides for

proper regulation.

• Spring Adjustment: The spring should be suitable for a range

of adjustment from 50 percent under the desired regulated

pressure to 50 percent over.

• Sharp Lock-Up: The regulator should include this feature toprevent the downstream pressure (between the regulator and

the boiler) from climbing when there is no gas flow.

• Regulators in Parallel: This type of installation can be used

if the required gas volume is very large and if the pressure

drop must be kept to a minimum.

• Regulators in Series: This type of installation can be used if

the available gas pressure is over 5, 10, or 20 psig.

BOILERHP

MODEL CB

CONN SIZE (IN.)

NET REG’DPRESS.REQ'D

(IN. WC)

HTBB MIN GASPRESS. REQ'D

15 1-1/4 4.0 -

20 1-1/4 4.0 -

25 - - -

30 2 4.0 -

40 2 4.5 -

50A 2 6.5 -

50 2 4.5 -

60 2 5.5 -

70 2 8.0 -

80 2 9.5 -

100A 2 8.5 -

100 2 9.5 -

125A 2-1/2 11.5 -

125 2-1/2 7.5 -

150 2-1/2 8.5 -175A 2-1/2 11.5 -

200 2-1/2 15.5 -

250 3 17.5 22.0

300 3 23.0 31.0

350 3 32.5 42.5

400 4 16.5 21.0

500 4 25.5 35.0

600 4 36.0 41.5

700 4 50

section a2 calderas cleaver brooks especificaciones tecnicas

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