Sheet 4442-2
North American Tempest
®
I
Engineering Data
for -H Model for 800°F Hot Air
Air Pressure, osi (UA Pressure Tap)
4442-1-H – 800°F Main Air
1
4
9
16
20
Capacity, scfh main air (burning stoichiometric)
220
450
750
950
1100
Max. % XSAir
300+
600+
950+
1250+
1500+
Max. % XSFuel
30+
30+
30+
30+
30+
Flame Length, in.
6
7
8
10
10
Flame Diameter, in.
2
2
2
2
2
Air Pressure, osi (UA Pressure Tap)
4442-2-H – 800°F Main Air
1
4
9
16
22
Capacity, scfh main air (burning stoichiometric)
430 825
1250
1700 1950
Max. % XSAir
1000+ 3000+
3000+ 3000+ 3000+
Max. % XSFuel
30+
30+
30+
30+
30+
Flame Length, in.
14
12
12
14
14
Flame Diameter, in.
2.0
1.5
1.5
1.5
1.5
Air Pressure, osi (UA Pressure Tap)
4442-3-H – 800°F Main Air
1
4
9
16
22
Capacity, scfh main air (burning stoichiometric)
615
1210
1840 2480
2920
Max. % XSAir
950
2000
3000
3000+ 3000+
Max. % XSFuel
30+
30+
30+
30+
30+
Flame Length, in.
8
8
10
12
14
Flame Diameter, in.
2
2
2
2
2
Limited by reading on 8697-02-62 plate.
It is not economical to fi eld convert a standard Tempest® I Burner (good for 400°F preheated air) to the -H Model good for 800°F, since
the gasket, mounting plate, and tile have to be replaced.
The following fl ow data is provided as guideline information only. In the fi eld, it is hard to accurately measure and maintain the
temperature at each burner. As a result, the fl ow rates at other main air pressures are not proportional to the square root of the pressure
drop. Capacities in the following tables are correct only if air and gas pipe nipples screwed into the burner have a straight length equal
to at least 5 pipe diameters. Data listed is for stoichiometric fi ring. Burners can be operated stably at up to 24 osig. Actual lab data is
listed below.
For maximum accuracy, use a fl ue gas analyzer or external metering orifi ces (see Bulletin 8697).
Sizes -1 through -7 are available in the -H Models.
ENERG
Y | C
OMBUSITION
