Engineering Data | HiRAM ® High Velocity
Main Air Pressure, osi (inch w.c.)
4575-10-B
0.2 (.35)
1 (1.73)
4 (6.9)
9 (15.6) 16 (27.7)
Main Air Flow, not burning, scfh Main Air Flow, burning, stoich., scfh Maximum %XSAir with flame signal (UV)
—
—
—
—
177 000
12 500
28 000
57 500
85 000 119 000
1 300
1 100
1 500
1 300
1 200
Maximum %XSFuel
25
25 7.5 24 0.6 0.6
25
25 7.5 24 5.3 5.0
25 10
Flame Length, stoich., ft. Flame Diameter, stoich., in. Gas Pressure, stoich., osi Tile Pressure, stoich., osi
6
6.5
18
24
30 9.2 8.6
0.2 0.2
2.4 2.3
Maximum %XSAir, ignition--pilot
1 300 1 300
1 100 1 100
1 500 1 500
1 300 1 300
1 200 1 200
Maximum %XSAir, ignition--direct spark
Main Air Pressure, osi
4575-12
0.2
1
4
9
16
Main Air Flow, not burning, scfh Main Air Flow, burning, stoich., scfh Maximum %XSAir with flame signal (UV)
—
—
—
—
199 000
19 100
42 700
81 500
118 000 164 000
800
1 500
1 500
1 200
1 000
Maximum %XSFuel
30
30
30
30 8.5
10 10 18
Flame Length, stoich., ft. Flame Diameter, stoich., in. Gas Pressure, stoich., osi Tile Pressure, stoich., osi
6
7
8
14
14
16
18
0.1 0.1
0.9 0.5
3.0
6.3 3.0
11.1 5.0
1.4
Maximum %XSAir, ignition--pilot
300
700 400
1 000
1 000
— —
Maximum %XSAir, ignition--direct spark
xx500
300
—
Main Air Pressure, osi
4575-14
0.2
1
4
9
16
Main Air Flow, not burning, scfh Main Air Flow, burning, stoich., scfh Maximum %XSAir with flame signal (UV)
—
—
—
—
388 000
39 500
68 500
125 700 186 000 251 400
1 500
1 500
1 500
1 500
1 250
Maximum %XSFuel
15
15 10
15 13
15 16
15 18
Flame Length, stoich., ft. Flame Diameter, stoich., ft. Gas Pressure, stoich., osi Tile Pressure, stoich., osi
8
2.5
3
3
3
3.5
.1
.5
2.1
4.8 8.0
—
—
1.2 2.3 3.6 — — — — — —
Maximum %XSAir, ignition--pilot
750 500
1 000
Maximum %XSAir, ignition--direct spark
500
Medium velocity 4575 burners operate at reduced air pressures compared to the high velocity versions listed above.
Bulletin 4575 Page 8
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