DIMENSIONS AND RATINGS

Figure 1. CBJT-4W - Steam 100-800 HP

DD
FF B 4
I D H
LL BB
L K U T

J
O OO X
Z (NEARSIDE)
S
(BOTH SIDES)
P

Q R
N W W
M F C G
A
FRONT VIEW RIGHT SIDE VIEW

Table 1: CBJT-4W Dimensions - Steam

*800
BOILER H.P. DIM 100 125 150 200 250 300 350 400 500 600 700 800
Note "C”

LENGTHS
Overall Length A 174 198 186 227.5 220.3 244.3 245.3 263.3 276.8 311.8 296.5 304 331
Shell B 131 155 143 177 172.5 196.5 189.8 207.8 213.8 248.8 232.8 232.8 259.8
Base Frame C 110 124 122 156 150.12 174.13 167.25 185.25 188.25 223.75 207.25 207.25 234.75
Burner Extension D 39 39 39 46.5 43.75 43.75 51.5 51.5 59 59 59.75 67.25 67.25
Smokebox to Base F 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Rear Ring Flange to Base G 20.5 20.5 20.5 20.5 22 22 22 22 25 25 25 25 25
Smokebox to Steam Nozzle H 50.88 74.88 63.88 97.88 86.25 110.3 95.63 113.6 106 141 115.6 115.6 142.6
WIDTHS
Overall Width I 85 85 92 92 103 103 110 110 123 123 133 133 133
I.D. Boiler J 60 60 67 67 78 78 85 85 96 96 106 106 106
Center to Water Column K 45 45 48.5 48.5 54 54 57.5 57.5 64 64 69 69 69
Center to Lagging L 33 33 36.75 36.75 42 42 45.5 45.5 51 51 56 56 56
Center to Auxiliary LWCO LL 40 40 43.5 43.5 49 49 52.5 52.5 59 59 64 64 64
Base Outside M 52.5 52.5 51 51 64 64 60 60 71.88 71.88 74.75 74.75 74.75
Base Inside N 44.5 44.5 43 43 56 56 47 47 58.88 58.88 61.75 61.75 61.75
HEIGHTS
Base to Rear Davit OO 86.12 86.12 92.75 92.75 98.88 98.88 112.8 112.8 125.1 125.1 134.3 134.3 134.3
Base to Vent Outlet O 87 87 92.63 92.63 106 106 115 115 126 126 135.6 135.6 135.6
Base to Boiler Centerline P 46 46 50 50 56 56 61 61 67 67 71 71 71
Height of Base Frame Q 12 12 12 12 12 12 12 12 12 12 12 12 12
Base to Bottom of Boiler R 15.63 15.63 16.13 16.13 16.5 16.5 18 18 18.5 18.5 17.5 17.5 17.5
Base to Steam Outlet X 82.38 82.38 89.88 89.88 101.5 101.5 110 110 121.5 121.5 130.5 130.5 130.5
BOILER CONNECTIONS
Feedwater Inlet (Both Sides) S 1.25 1.5 1.5 2 2 2 2.5 2.5 2.5 2.5 2.5 2.5 2.5
Surface Blowoff (150 lb only) T 1 1 1 1 1 1 1 1 1 1 1 1 1
Steam Nozzle 15 lb (See Note U 8 8 8 10 12 12 12 12 12 12 12 12 12
Steam Nozzle 150 lb (See Note U 4 4 4 4 6 6 6 6 8 8 8 8 8
Blowdown-Front & Rear (15 lb) W 1.5 1.5 1.5 2 2 2 2 2 2 2 2 2 2
Blowdown-Front & Rear (150 lb) W 1.25 1.5 1.5 1.5 1.5 1.5 1.5 2 2 2 2 2 2
Chemical Feed Z 1 1 1 1 1 1 1 1 1 1 1 1 1

Boiler Book | 5
DIMENSIONS AND RATINGS

Table 1: CBJT-4W Dimensions - Steam (Continued)

*800
BOILER H.P. DIM 100 125 150 200 250 300 350 400 500 600 700 800
Note "C”

VENT STACK
Vent Stack Diameter (Flanged) BB 16 16 16 16 20 20 24 24 24 24 24 24 24
MINIMUM CLEARANCES
Rear Door Swing DD 36 36 40 40 46 46 50 50 55 55 60 60 60
Tube Removal - Front Only FF 96 120 108 142 132.5 156.5 148 166 169 204 188 188 215
MINIMUM BOILER ROOM LENGTH ALLOWING FOR DOOR SWING AND TUBE REMOVAL FROM:
Thru Window or Door RD 234 258 261 295 307.5 331.5 337 355 377 412 411 411 438
Front of Boiler RF 263 311 291 359 351 399 388 424 438 508 481 481 535
WEIGHTS IN LBS
Normal Water Weight - 5,870 7,310 7,625 9,995 12,590 14,850 16,025 17,950 21,050 25,350 28,700 28,700 32,770
Approx. Shipping Weight - (15 - 10,860 12,080 13,090 15,260 19,110 21,050 24,760 27,640 33,295 38,150 42,320 42,320 46,300
Approx. Shipping Weight - (150 - 11,320 12,920 13,980 16,620 21,620 23,970 26,850 29,650 36,190 39,560 46,290 46,290 50,830
NOTES:
Accompanying dimensions, while sufficiently accurate for layout purposes, must be confirmed for construction by certified dimension diagram/drawing. All Connections are
Threaded Unless Otherwise Indicated:
NOTE “A”: ANSI 150 psig Flange
NOTE “B”: ANSI 300 psig Flange
NOTE “C”: *800 hp w/ 4000 sq. ft. of heating surface

Table 2: CBJT-4W Ratings - Steam

BOILER H.P. 100 125 150 200 250 300 350 400 500 600 700 800
BURNER MODEL FP-3 FP-3 FP-3 FP-4 FP-4 FP-4 D145P D175P D210P D252P D300P D378P
RATINGS - SEA LEVEL TO 700 FT.
Rated Capacity (lbs-steam/hr from and 3450 4313 5175 6900 8625 10350 12075 13800 17250 20700 24150 27600
at 212 0F)
Btu Output (1000 Btu/hr) 3348 4184 5021 6695 8369 10043 11716 13390 16738 20085 23433 26780
APPROXIMATE FUEL CONSUMPTION AT RATED CAPACITY BASED ON NOMINAL 82% EFFICIENCY
Light Oil gph (140,000 Btu/gal) 29.2 36.4 43.7 58.3 72.9 87.5 102.1 116.6 145.8 175.0 204.1 233.3
Gas CFH (1000 Btu) 4082 5103 6123 8165 10206 12247 14288 16329 20412 24494 28576 32659
Gas (Therm/hr) 40.8 51.0 61.2 81.6 102.1 122.5 142.9 163.3 204.1 244.9 285.8 326.6
POWER REQUIREMENTS - SEA LEVEL TO 700 FT. (60 HZ)
Blower Motor hp 2 3 5 5 5 7-1/2 15 20 25 30 40 75
Circulating Oil Pump Motor hp (Oil only) 1/3* 1/3* 3/4* 1/2 1/2 3/4 3/4 3/4 3/4 3/4 1 1
Oil Metering Pump Motor hp (Oil only) - - - - - - - 1/2 3/4 3/4 3/4 1
Integral Oil/Air Motor hp (Oil only) - - - - - - 2 - - - - -
Air Compressor Motor hp (Oil only) ** ** ** 3 3 3 - 5 5 7-1/2 7-1/2 15
BOILER DATA
Heating Surface sq-ft. (Fireside) 500 625 750 1000 1250 1500 1750 2000 2500 3000 3500 Note "B"
* Base rail mounted oil pump will be 3-phase voltage.
** No air compressor required (pressure atomized).
NOTES:
A. All fractional hp motors will be single phase voltage except oil metering pump motor(3-phase); integral hp motors will be 3-phase voltage.
B. 800 hp boilers are available w/ 3500 or 4000 sq. ft. of heating surface

6 | CBJT-4W
 DIMENSIONS AND RATINGS

BOILER ALL DIMENSIONS IN INCHES

HP A B C D E
100-125 33 47 52 80 36
150-200 36.5 49 56 83 40
250-300 42 56 61 92 46
350-400 45.5 58 68 99 50
500-600 51 66 75 111 55
700-800 56 74 80 121 60

Figure 5. Space Required to Open Rear Head on Model CBJT-4W

D
D NEAR SIDE
E DIA OF HOLE FAIR SIDE
B C

BOILER ALL DIMENSIONS IN INCHES

HP A B C D E
100 79.5 21.375 84.75 10 3
125 79.5 21.375 108.75 10 3
150 87.125 21.375 96.75 10 3
200 87.125 21.375 130.75 10 3
250 99 28.75 104.25 10 3
300 99 28.75 128.25 10 3
350 107.625 33.25 126 10 3
400 107.625 33.25 144 10 3
500 125.375 34.5 145 10 3
600 125.375 34.5 180 10 3
700-800 134.5 34.5 164 10 3
NOTE: A, B, and C dimensions may vary by 1 inch.

Figure 6. Model CBJT-4W Lift Lug Locations

Boiler Book | 13
PERFORMANCE DATA

BOILER ALL DIMENSIONS IN INCHES

HP A B C D E F G X
100 6 9 110 39.5 57.5 4 44.5 8
125 6 9 124 39.5 57.5 4 44.5 8
150 6 9 122 38 56 4 43 8
200 6 9 156 38 56 4 43 8
250 6 9 150.125 51 69 4 56 11.5
300 6 9 174.125 51 69 4 56 11.5
350 6 12 167.25 41.5 65.5 6.5 47 11.5
400 6 12 185.25 41.5 65.5 6.5 47 11.5
500 6 12 188.25 53.375 77.375 6.5 58.875 10.5
600 6 12 223.25 53.375 77.375 6.5 58.875 10.5
700-800 6 12 207.25 56.25 80.25 6.5 61.75 10.5
NOTE:
6-inch high mounting piers recommended for use beneath the boiler base frame. The use of these piers provides
increased inspection accessibility to the boiler and added height for washing down the area beneath the boiler.

Figure 7. Model CBJT-4W Mounting Piers

PERFORMANCE DATA
Contact your local Cleaver-Brooks authorized representative for efficiencies.
Cleaver-Brooks CBJT-4W boilers are available with the standard burner package, or optional model Profire LE or
Profire NT if NOx reductions of between 75 and <9 PPM on natural gas are required, or 70 PPM on #2 oil with
0.02% fuel bound nitrogen.

ENGINEERING DATA
The following engineering information is provided for Model CBJT-4W Boilers. Additional detail is available from
your local Cleaver-Brooks authorized representative.
Boiler Information
• Table 11 shows steam volume and disengaging area for model CBJT-4W boilers.
• Table 12 lists quantity and outlet size for safety valves supplied on Model CBJT-4W steam boilers.
• Table 13 lists quantity and outlet size for relief valves supplied on Model CBJT-4W hot water boilers.
• Table 14 gives recommended steam nozzle sizes on Model CBJT-4W Boilers.
• Table 15 shows recommended non-return valve sizes for Model CBJT-4W Boilers.

14 | CBJT-4W