6131smh-7-1 page 2
4/5/6121 SERIES BURNERS For Firing Atlas Generators and neutral pressure boilers.
Method for closing off gas ports in Figure 4 is not identical to Figures 1, 2, and 3
Pipe Plug
Rectangular SST Cover
Forward Gas Ports
9 10 Rectangular SST Cover
Radial Gas Ports
8 9
8
11
7 8
7
10
6
9
6
7
5
Radial Gas Ports
7
6
4
5
Round SST Cover
5
Position No.
6
1
3
1
4
1
2
Forward Gas Ports
4
1
3 2
2
5
3 2
4 3
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 1.
Figure 3.
Atlas Boiler
Atlas
Gas Ports Closed Off
Atlas Boiler
Atlas
Gas Ports Closed Off
Burner
Forward
Radial
Burner
Forward
Radial
No. †
No. †
No.
Ports
Ports
No.
Ports
Ports
260 270 280 360 380 390
6121-2.5H6A65 6121-2.9H6A38 6121-3.4H6A39 6121-2.5H6A64 6121-3.4H6A50 6121-3.8H6A51 6121-4.2H6A40 6121-5.2H6B41 6121-6.3H6B42 6121-4.2H6A52 6121-4.2H6A53 6121-5.2H6B54 6121-5.2H6B37 6121-6.3H6B56
All All All All All All All
1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 2,4,6 2,4,6 1,2,3 1,2,3 2,4,6 2,4,6 2,4,6
2250 2300 2350 2400 3250 3300 3350 3400
6121-10.5H6CL44 6121-12.6H6D45 6121-14.7H6D46 6121-16.8H6D47 6121-10.5H6CL58 6121-12.6H6D59 6121-14.7H6D60 6121-16.8H6D61
2,3,5,6,8,9
2,3,5,6,8,9
2,3 2,3 2,3 2,3
2,3 2,3 2,3 2,3 2,3 2,3 2,3
All All All
2100 2125 2150 3100
2,4,6 2,4,6
All All
Figure 4.
3100X
Atlas Boiler
Atlas
Gas Ports Closed Off
3125
2,4,6
Burner
Forward
Radial
3125X
2,5,6 (1,3,4,7)
No. †
No.
Ports
Ports
3150
2,4,6
2500 2600 2700 3500 3600 3700
6121-21.0H6E48 6121-25.2H6E49 6121-29.4H6FA76 6121-21.0H6E62 6121-25.2H6E63 6121-29.4H6FA75
1,3,4,6,7,9,10 1,3,4,6,7,9,10 1,3,4,6,7,9,10 1,3,4,6,7,9,10 1,3,4,6,7,9,10 1,3,4,6,7,9,10 1,3,4,6,7,9,10 1,3,4,6,7,9,10 1,3,4,6,7,9,10 1,3,4,6,7,9,10 1,3,4,6,7,9,10 1,3,4,6,7,9,10
Figure 2.
Atlas Boiler
Atlas
Gas Ports Closed Off
Burner
Forward
Radial
No. †
No.
Ports
Ports
Tubes
2200 3200
6121-8.4H6C43 6121-8.4H6C57 6121-8.4H6C72
2,3,4,6,8,9 2,3,4,6,8,9
2,3 2,3
1,5,7 1,5,7
3200X
2,3,5,6,7
2,3,5,6,7
None
† All boiler numbers with prefix 2 refer to any 2-pass boiler with neutral firebox pressure. Orifice Plugs #11-12803-1.
WARNING: Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.
CONTACT fna.sales@fivesgroup.com T +1 800 626 3477 - F +1 216 373 4237
Fives North American Combustion, Inc. 4455 East 71st Street - Cleveland, OH 44105 - USA www.fivesgroup.com
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