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WATERTUBE
CLEARFIRE
CLEVER BROOKS STEAM BOILER FROM U.S.A HIGH PERFORMANCE WITH LESS MAINTENANCE

CB 50-800 HP
SPECIFICATION
- HEATING or PROCESSING
- STEAM(15to450psi) or HOT WATER(30lbs.AND UP)
- 15 to 800 HORSEPOWER
- OIL., GAS or COMBINATION
- ALTERNATE FUEL CAPABILITY
- LOW NOx CAPABILITY

1. Fuel Cost Savings and Fuel Conservation

The boiler with the hightset guaranteed fuel-to-osteam efficiency* will burn least amount of fuel for the same output. You pay your fuel bills based on the fuel-to-steam efficiency of your boiler!

GURANTEED FUEL-TO-STEAM EFFICIENCIES ON MODEL CB FIRETUBE BOILERS AT 50% AND 100% OF RATING

BOILER

SIDE(HP)

GAS FUEL
NO.2 OIL
NO.5 & NO.6 OILS

15#Design

10PSIG Operation

150#Design

10PSIG Operation

15#Design

10PSIG Operation

150#Design

125PSIG Operation

15#Design

10PSIG Operation

150#Design

125PSIG Operation

% of Load
% of Load
% of Load
% of Load
% of Load
% of Load
 
50%
100%
50%
100%
50%
100%
50%
100%
50%
100%
50%
100%
100
83.5
83.5
80.5
81.0
86.5
86.5
80.5
81.0
84.0
87.0
84.0
84.5
125
82.0
82.0
79.0
79.5
85.0
85.5
79.0
79.5
82.5
86.0
82.5
83.5
150
83.0
83.0
80.0
80.5
86.0
86.5
80.0
80.5
83.5
83.5
83.5
84.5
200
83.5
83.5
80.5
81.5
87.0
87.0
80.5
81.5
84.5
84.5
84.5
85.0
250
82.0
82.0
79.5
80.0
85.5
85.5
79.5
80.0
83.5
80.0
83.5
83.5
300
82.5
82.5
80.0
80.5
86.0
86.0
80.0
80.5
84.0
80.5
84.0
84.0
350
83.0
83.0
80.5
81.0
86.5
86.5
80.5
81.0
84.5
81.0
84.5
85.0
400
83.0
83.0
80.0
80.5
86.0
86.5
80.0
80.5
84.0
80.5
84.0
84.5
500
84.0
84.0
81.0
81.5
87.0
87.5
81.0
81.5
84.5
81.5
84.5
85.5
600
84.0
84.5
81.0
82.0
87.5
87.5
81.0
82.0
85.0
82.0
85.0
86.0
700
84.5
84.5
81.5
82.0
87.5
88.0
81.5
82.0
85.0
82.0
85.0
86.0
800
84.5
84.5
81.5
82.0
88.0
88.0
81.5
82.0
85.5
82.0
85.5
86.0

*Fuel Heating Valves:Natural Gas - 1,000 BTU/Cu.Ft.

#2 Oil - 140,000 BTU/Gal.

#5&6 Oil - 150,000 BTU/Gal.

*Fuel-to-Steam Efficiency (Base on Hi Heating Value of Fuel & With out Economizer) includes an allowance for Radiation and Convection boiler heat losses from the Unit to the boiler room

2. Extremely low noise levels

An outstanding feature of the CB is its unusually Quiet operation. Fan noise is often a problem with mechanical equipment --- not so with Cleaver-Brooks. the exclusive CB caseless fan design draws combustion air into the large plenum chamber of the front head, which confines and deadens fan and air noise. At peak loads, the CB more than meets the low sound levels required for schools,hospitals and institutions. Air inlet is accoustically lined.

SOUND PRESSURE LEVEL SUMMARY

FIRETUBE BOILERS 48" THRU 96" DIA.

Sound Pressure levels measured on boilers operating in various locations and expressed in dBA are as follow

Boiler
CB-50
CB-60
CB-70
CB-80
CB-100
CB-125A
CB-125
CB-150
CB-200
HFO,dBA
79
79
79
79
81
82
83
83
83
LFO,dBA
78
78
78
78
79
79
81
82
81
HFG,dBA
77
77
78
78
78
79
81
80
82
LFG,dBA
72
73
74
75
75
75
78
77
78

 

Boiler
CB-250
CB-300
CB-350
CB-400
CB-500
CB-600
CB-700
CB-800
HFO,dBA
88
88
89
83
83
83
85
88
LFO,dBA
86
86
85
80
82
82
82
84
HFG,dBA
84
86
86
82
82
82
85
87
LFG,dBA
81
82
83
80
81
81
82
84

SOUND PRESSURE LEVEL SUMMARY : HF = HIGH FIRE , LF = LOW FIRE , O = OIL , G = GAS