Natural Gas Operation | Tempest®
NATURAL GAS OPERATION Main Air Pressure, (UA pressure tap), "w.c
4441-3
0.3
1.7
6.9
15.6
20.8
27.7
34.6
41.6
Air Flow, not burning (scfh)
4000
Air Flow, (scfh)
340
800
1600
2450
2900
3300
3750
4100
Air Orifice , UA-DA, (“w.c.) Gas Orifice , UG-DG, (“w.c.)
0.25
0.9
4
9.5
10.5
17.4
21.9
26.6
0.1 0.1
0.5
1.8
4.7
6.6
8.5
9.2
11.3
Tile Pressure, DG ("w.c.)
0.6
2.5
5.1
7.9
8.6
10.6
12.5
Max. % XSAir, fs, ignition
1500
3000
3000
4000
4000
4000
4000
4000
Max. % XSFuel, fs
50
50
50
50
50
50
50
50
Max. % XSFuel, ignition
30
30
30
30
30
30
0
0
Flame Length (in.)
10
12
14
11
12
12
12
12
Flame Diameter (in.)
1
2
2
2
2
2
2
2
4441-4-A
0.3
1.7
6.9
15.6
20.8
27.7
34.6
41.6
Air Flow, not burning (scfh)
6100
Air Flow, (scfh)
600
1200
2600
3850
4400
5250
5900
6650
Air Orifice , UA-DA, (“w.c.) Gas Orifice , UG-DG, (“w.c.)
— — —
0.9
4.5
9.2
12.7
16.4
21.2
27
0.5
1.8
3.5
4.6
6.5
8
10.3
Tile Pressure, DG ("w.c.)
0.3
1.9
3.7
4.8
7.9
8.3
10.5
Max. % XSAir, fs, ignition
1600
3400
5000
6000
6000
6000
6000
6000
Max. % XSFuel, fs
50 50
50 50
50 50
50 50
50 50
50 50 20
50
50
Max. % XSFuel, ignition
30
0
Flame Length (in.)
16
18
18
18
19
24
24
Flame Diameter (in.)
3
3
3
3
3
3
3
4
4441-4-B
0.3
1.7
6.9
15.6
20.8
27.7
34.6
41.6
Air Flow, not burning (scfh)
8200
Air Flow, (scfh)
750
1650
3400
5100
5800
6900
7700
8500
Air Orifice , UA-DA, (“w.c.) Gas Orifice , UG-DG, (“w.c.)
— — —
1.1
4.4
9.8
12.6
16.5
21.6
26.8
0.5 0.5
2.4
5.1
6.4
8.5
11
12.5
Tile Pressure, DG ("w.c.)
1.3
3.1
3.9
5.5
6.9
7.2
Max. % XSAir, fs, ignition
1400
5000
6000
6000
6000
6000
6000
6000
Max. % XSFuel, fs
50 50 20
50 50
50 50
50 50
50
50
50
50
Max. % XSFuel, ignition
30
30
0
0
Flame Length (in.)
24
26
26
26
26
26
27
Flame Diameter (in.)
3
4
4
4
4
4
4
5
Bulletin 4441 page 6
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