Sheet 6435-3 Page 6
6435-6 – 800°F Main Air, Cold Atomizing Air
Main Air Pressure, osi
Burning Natural Gas
0.1
1
4
9
16
20
Main air, scfh, stoich.
1200 2600 5200 7900 10 700 12 400
Atom. air, scfh at 20 osi, stoich. †Total air, scfh, stoich. Gas flow, stoich., scfh Gas pressure, stoich., osi Flame length, in., stoich. Flame diameter, in., stoich. Tile pressure, osi, stoich.
410
410
400
400
400
380
1750 3150
5750 8450 11 200 12 900
175 0.1
315 0.6
575
845
1 120 1 300
2.2 24
4.6
7.8 24
9.5
15
21
24
24
4 0
4
5
6
6
7
0.3
1.0
2.0
3.7
4.2
Max. %XSAir
‡Flame supervision
25
200 300 250
400 750 500
500 750 500
550 750 400
650 650 250
‡Stability
125 100
‡Ignition--pilot
Max. %XSFuel
30
30
30
30
30
30
Burning #2 Oil
0.1
1
4
9
16
20
Main air, scfh, stoich.
1400 2650 5350 8100 10 800 12 400
Atom. air, scfh at 30 osi, stoich.
510
510
500
500
510
460
†Total air, scfh, stoich. Oil flow, stoich., gph
2050 3300 6000 8750 11 500 13 000
1.5 1.4
2.4
4.3
6.3 1.8
8.2 2.0
9.3
Oil pressure, stoich., psi Flame length, in., stoich. Flame diameter, in., stoich. Tile pressure, osi, stoich
1.5 24
1.7 24
2.1 24
12
24
24
6
7
8
8
8
9
0.04
0.15
0.9
1.9
3.4
4.4
Max. %XSAir
‡Flame supervision
25 50 25 30
125
250 400 250
400 600 400
675 700 675
500 800 500
†Stability
200
†Ignition--pilot
125
Max. %XSFuel
30
30
20
20
20
The external metal temperatures recorded with neutral furnace pressure and in a cold chamber with preheated air were as follows:
Metal temperature, F
Body
Preheat Air
Body
(Main Air
temperature, F (near flange)
Inlet Flange)
400 600 800
410 560 720
310 440 570
† Total air is main air plus atomizing air plus 140 scfh for pilot air. ‡ Honeywell Ultravision Flame Detector C7027A and Honeywell Flame Supervision Protectorelay RA890G yielded 1.5 micro amps or greater for all above rates. 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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