Natural Gas Operation | Tempest®
NATURAL GAS OPERATION Main Air Pressure, (UA pressure tap), "w.c
4441-8-A
0.3
1.7
6.9
15.6
20.8
27.7
34.6
Air Flow, not burning scfh
36000
Air Flow, scfh
4000
7500
15000
23200
26900
31000
34500
Air Orifice , UA-DA, “w.c.
— —
0.9
3.3
8.4
10.5
13.8
18.5
Gas Orifice , UG-DG, “w.c., stoich.
0.3
0.7
1.6
1.8
2.5
2.9
Tile Pressure, "w.c.
0.2
0.6
2.7
5.4
6.7
9.1
10.6
Max. % XSA fs, ignition
1000
2000
3000
3000
3000
3000
2000
Max. % XSFuel, fs
30
30
30
30
30
30
30
Flame Length in.
36
40
45
45
48
50
50
Flame Diameter in.
12
12
12
12
12
12
12
4441-8-B
0.3
1.7
6.9
15.6
20.8
27.7
34.6
Air Flow, not burning scfh
50000
Air Flow, scfh
5500
10000
20000
32000
36000
42000
47000
Air Orifice , UA-DA, “w.c.
— —
0.7
2.3
5.7
8.4
11.9 4.6 8.4
14.6
Gas Orifice , UG-DG, “w.c., stoich.
0.4
1.1
2.6
3.3
5.7
Tile Pressure, "w.c.
0.2
0.7
2.6
5.5
6.8
10.1
Max. % XSA fs, ignition
1000
2000
2000
3000
3000
3000
2500
Max. % XSFuel, fs
30
30
30
30
30
30
30
Flame Length in.
46
49
53
53
55
60
62
Flame Diameter in.
13
13
13
13
14
14
14
4441-8-C
0.3
1.7
6.9
15.6
20.8
27.7
34.6
Air Flow, not burning scfh
63000
Air Flow, scfh
6500
12500
25000
38000
45000
54000
60000
Air Orifice , UA-DA, “w.c.
— — 0.1
0.5 0.2 0.5
1.6
3.8 3.8
5.9
8.3
9.9 9.2 6.5
Gas Orifice , UG-DG, “w.c., stoich.
1.7
5.3
7.3
Tile Pressure, "w.c.
1.9
3.9
4.9
5.8
Max. % XSA fs, ignition
2000
3000
3000
3000
3000
3000
2000
Max. % XSFuel, fs
30
30
30
30
30
30
30
Flame Length in.
48
53
57
59
60
68
72
Flame Diameter in.
14
14
14
14
14
14
15
Bulletin 4441 page 8
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