Dimensions | High Velocity Burner
Table 1. 4441A Natural Gas Performance Data
(Performance for 16 osi main air pressure operating at stoichiometric ratio unless stated otherwise)
Burner Size
-2
-3
4-A
-4-B 7150 6000
-5
-6*
-7
Air Flow, not burning (scfh) Air Flow, burning (scfh)* Air Orifice DR,UA-DA, (in.w.c.) Gas Orifice DR, UG-DG (in.w.c.)
2750 2300
3800 5900 3300 5300
10 600 9 300
18 000 14 500
25 500 22 500
- - - - - - - -
16.8
18.2
18.3
15.0 6.2 10.1 12.5
4.2 2.9 4.4 5.7
11.0 5.7 7.2 9.9
6.7 9.9
7.2 9.2
7.0 8.5
Gas Pressure UG (osig)
Gas Pressure UG (osig), 30% XSF
14.3
14.4
10.9
Max. % XSA, (ignition and flame signal limit)** 3500
4500 6000+
6000+ 6000+
6000+
Max. % XSF, (ignition and flame signal limit)
30
30
30 24
30 24
50 24 4.5
50 42
Flame Length (in.) Flame Diameter (in.)
12
14
2
2
3
3
6
*Lab data for -6 size not available. Air flow values estimated.
DIMENSIONS (inches)
D
Y
E
fl ame supervision ¾ " fpt
C–mpt hot gas outlet
H
B–fpt gas inlet
1
DG
37-0289/HR
E
A –fpt (-7 only)
UA
A –fpt air inlet
F
F (-7 only)
45º
dimensions in inches
wt,
Burner
designation
A
B
C 2 2 2 2 3 3 4
D
E
F
H
lb
4441A-2 4441A-3 4441A-4
1 ¼ 1 ½
¾ ¾
7 ½ 7 ½ 7 ½ 7 ½
3 ¾ 3 ¾ 3 ¾ 3 ¾
13 7⁄8 13 7⁄8 13 7⁄8 13 7⁄8 15 2⁄5 15 2⁄5 25 1⁄8
2 ¾ 2 ¾ 2 ¾ 2 ¾ 3 5⁄8 3 5⁄8 3 5⁄8
40 40 40 40 75 75 95
2 2
1 1
4441A-4-B
4441A-5 4441A-6 4441A-7
2 ½
1 ¼ 1 ½
10 10 10
5 5 5
3 4
2
4441A-7 has special arrangement of air and gas connections. See Specifications 4441
Discharge Connections . The Aardvark's threaded tile discharge connection can be connected to distribution piping with a straight or reducing coupling or flange union.
Caution : All fittings, flanges, and distribution piping must be suitable for temperatures anticipated at burner discharge.
DIMENSIONS SHOWN ARE SUBJECT TO CHANGE. PLEASE OBTAIN CERTIFIED PRINTS FROM FIVES NORTH AMERICAN COMBUSTION, INC. IF SPACE LIMITATIONS OR OTHER CONSIDERATIONS MAKE EXACT DIMENSION(S) CRITICAL .
Bulletin 4441A page 3
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