Instructions 4832-2 Page 3
FLAT FLAME TM PATTERNS SUGGESTED BURNER SPACING
4832 Flat Flame Patterns. The following data is based on Flat Flame Burners operating on correct air/fuel ratio in an open cold furnace.
Table 2. FLAT FLAME DIAMETERS, inches (cold air).
Table 1. MAXIMUM FORWARD FLAME TRAVEL, from tile face, inches (cold air).
air pressure drop across burner
air pressure drop across burner
Burner
1 osi
4 osi
16 osi
Burner
1 osi
4 osi
16 osi
2 ½
1 1
6 8
8
-0 ( ¾ " )
† †
-0 ( ¾ " )
† †
-1 (1 " )
2 1 /
-1 (1 " )
12
2
-2 (1 ¼ " ) -3 (1 ½ " )
6-7 6-8
10-12 13-15 19-21 20-22 18-22 20-24
13-15 15-17 22-24 24-26 28-32 32-36
-2 (1 ¼ " ) -3 (1 ½ " )
6
4-5 3-4
3-4 2-3 3-4 3-4 3-4 3-4
4-5 4-5
-4 (2 " )
13-15
-4 (2 " )
4
-5 (2 ½ " )
10-12 10-12 10-12
-5 (2 ½ " )
4-5
4
-6 (3 " ) -7 (4 " )
-6 (3 " ) -7 (4 " )
6 6 3 4
4-5 4-5
-8-A (6 " ) -8-B (6 " )
28 24
28 30
30 36
-8-A (6 " ) -8-B (6 " )
3 4
3 4
Suggested Flat Flame Burner Spacings and Burner-to-Load Distances. The burner spacing will depend to a great extent on the desired firing rate and the shape of area to be heated, but the following general guides are suggested. CONSULT A FIVES NORTH AMERICAN ENGINEER FOR ASSISTANCE IN LOCATING BURNERS.
Table 3. BURNER SPACING and BURNER-TO-LOAD DISTANCES.
Suggested burner CLto CL
Suggested tile face to load *
Burner size
minimum
maximum
-0 ( ¾ " )
7" 7" 9" 9" 9"
7 ½" 7 ½"
16" 20" 30" 36" 48" 62" 77"
-1 (1 " )
-2 (1 ¼ " ) -3 (1 ½ " )
13 ½" 16" 1 / 18" 1 / 24" 1 / 27" 1 / 33" 1 / 35" 1 / 40" 1 /
2
-4 (2 " )
2
-5 (2 ½ " )
11" 12" 14" 15" 15"
2
-6 (3 " ) -7 (4 " )
2
100"
2
-8-A (6 " ) -8-B (6 " )
120" 140"
2
2
The minimum center-to-center spacing will give a very high firing rate. The dimensions for maximum centers may be exceeded if desired, but no performance data is available. As burners are spaced farther apart, the burner-to-load distance should be increased accordingly, up to 18" or 24" depending on size.
* Minimum to avoid flame impingement. In some cases better results may be attained by greater distances. † Flame is entirely within tile.
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