Product Overview | 6514 Fire•All ™
Gas. Atomizing air (4 osi minimum) should be left on to protect the atomizer. Maximum required natural gas pressure at the burner for stoichiometric ratio is less than 4osi. Air/Fuel Ratio. 6514 Dual-Fuel Burners are stable throughout a wide range from excess fuel to excess air. They can operate with excess fuel without forming carbon, but additional air for complete combustion must be available in the furnace near the burner.
6514 FIRE • ALL™ Dual-Fuel Burners are nozzle mix, sealed- in burners for gas, light oil, or heavy oil. Capable of efficient operation throughout a wide temperature range, these burners are equally at home on low temperature ovens and high temperature forge and melting furnaces. Ruggedly built for sustained, maintenance-free operation, 6514 Burners also provide for quick change of fuels without disturbing process operations. Sealed mountings help maintain furnace pressure, controlled atmosphere, and closer air/fuel ratio control--all contributing to better product quality. Fire • All™ Burners are a proven workhorse on all types of furnaces. COMBUSTION CHARACTERISTICS Oil. Oil viscosity at the burners must not exceed 100 SSU. Oil pressure at air/fuel Ratiotrol™ should be between 25 and 30 psi. Oil pressure at rated capacity is 10 to 15psi at Sensitrol™ and less than 2 psi at burner. Minimum atomizing air pressure at the burners is 14 osi for light oil, 22 osi for heavy oil.
For limits in a specific case, either rich or lean, consult North American.
Turndown. Fire • All™ Burners can be turned down to atomizing air only (with fuel to match) except when burning residual oils in a cold, tight furnace.
Total air capacities (including main and atomizing air)
16 osi air pressure drop across the burner
24 osi air pressure drop across the burner
Approx.
flame lengths Burner designation
Air scfh
Light oil Heavy oil Gas
Air Light oil Heavy oil Gas
with 16 osi main air (in open furnace)
gph
gph
scfh
scfh
gph
gph
scfh
17 900 28 400 48 900 81 500 165 000 247 000
13 21
12 19
1 790 2 840 4 890
21 900 34 800 60 000
16
15
2 190 3 480 6 000 10 000 20 200
4' - 5' 5' - 6' 8' - 9' 9' - 12' 15' - 18'
6514-6 6514-7
26 44 74
23 40 67
6514-8-A 6514-8-B 6514-9 6514-10
36 60
33 54
8 150 100 000
122 183
110 165
16 500 202 000 150 24 700 303 000 224
135
202 30 300
20'
For Btu/hr, multiply by 100
Light oil at 135 000 Btu/gal.
Heavy oil at 150 000 Btu/gal.
Natural gas at 1000 Btu/cf.
Total air capacities (including main and atomizing air)
Main air capacities in scfh
Atomizing air capacities in scfh
Burner
Air pressure drop across the burner in osi
Air pressure drop across the burner in osi
designation
1
5
6
8
12
16
14
16
18
20
22
24
3 710
8 300
9 100
10 500 17 200
12 900 14 900 21 000 24 400 36 700 42 400 60 500 70 000
2 800 3 770 6 050 10 600 17 200 27 200
3 000 4 030 6 500
3 180 4 270 7 000
3 360 4 500
3 510 3 660 4 720 4 900
6514-6 6514-7
6 100 13 600 15 000
6514-8-A 6514-8-B 6514-9 6514-10
10 600 23 700 26 000 30 000 17 600 39 200 43 000 49 600
7 300 7 600
7 850
11 300 12 000 18 400 19 600 29 100 30 900
12 700 13 200 13 800 20 700 21 600 22 500 32 600 34 100 35 500
36 600 82 000 89 500 104 000 127 000 146 000 54 500 122 000 135 000 154 000 189 000 218 000
Bulletin 6514 Page 2
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