Dimensions | 4821 Air Burners
FF - Diameter linning
P - Diameter
DIMENSIONS in inches
H - bolt circle
M°
DD R tile only exit diameter
G°
E - Diameter F - # of holes
J - Diameter
K - Diameter L - # of holes
N - bolt circle
BB - Minimum tile length
B - 150 ANSI raised flange gas inlet
A - Main air connection (ANSI)
2 .50
V
W
X
½
AA - NPT pilot conn. 45° to mfg. fl ange
¼" NPT fuel tap
.50 mounting fl ange
T
U
¼" NPT air tap
1" NPT for flame detector 45° to mfg. fl ange
CC dia
BB dia
C - NPT jet air inlet
1" NPT obs. port conns.
Z - Obsrv. port
BB - Minimum tile length 3° taper for standard tile only
S - Diameter
EE - Clearance reqd. to remove internals Y
D - Hole on a R - Bolt circle Q - # of holes (straddle centerline)
DIMENSIONS IN INCHES AND DEGREES
Burner Designation A
B
C
D
E
F
G °
H J
K
L M °
N
P
Q
R
S
T
4821-9
8
2.5 1 2.5 1 2.5 1
0.75 0.75 0.75 0.75 0.75
0.75 4 0.75 4 0.75 4 0.75 4 0.75 8 0.75 8
45 45 45 45
5.5 7 5.5 7 5.5 7
0.88 8 22.5
11.75
13.5
16 20.5 16 20.5
22.25 22.25
11.75 11.75
4821-10-A 4821-10-B
10 10 12 14 16 18 20 22
1 1
12 12 12
15 15 15 15
14.25 16 14.25 16
16 16
22.5 24.5
24.25 13.75 26.25 14.75 28.25 14.81 30.25 14.81 32.25 14.81
4821-12 4821-14 4821-16 4821-18 4821-20 4821-22
3 4 4 4 6 6
1 1
6
7.5 1
17
19 21
22.5 7.5 9 22.5 7.5 9 22.5 7.5 9 22.5 9.5 11 22.5 9.5 11
1.13 12 1.13 16 1.25 16 1.25 20 1.25 20
18.75
20 26.5
1¼ 0.75
11.25 21.25 23.5 20 28.5
2 0.88 0.75 8 2 0.88 0.88 8 2 0.88 0.88 8
11.25 22.75 25
20 30.5
9 9
25 26
27.5 24 32.5 29.5 24 34.5
34.25 36.25
15.5 15.5
DIMENSIONS IN INCHES
Burner
Estimated Recommended
AA BB
CC DD
Designation
U
V
W
X
Y
Z
EE
FF
weight, lb
pilot assy.
4821-9
11 11
13
12.31 5.75
33.56 33.56 37.19 42.25 45.56
1.5 1.5 1.5
10 10
16 16 18 20 22 24 26 28 30
5.75 6.25
60
7 9 9 11
343 343 443 580 715 795 915 1035 1152
4014-2-T 4014-2-T 4014-2-T 4014-3-AT 4014-3-AT 4014-3-AT 4014-3-BT 4014-3-BT 4014-3-BT
¾ ¾ ¾ ¾ ¾
4821-10-A 4821-10-B
12.25 13.06 5.75
61
12.5 13.5 14.5 15.5 16.5 17.5 18.5
15
13.94 5.75 15.44 6.81 16.88 7.69 17.25 7.31 18.88 7.5 21.25 8.88
11
7
69 83 86 87 92
4821-12 4821-14 4821-16 4821-18 4821-20 4821-22
17.5 18.5
2 2 2 2 2 2
12.5
8.5
14.75
10
13.63 15.63 17.63 19.63 21.63
19
46.06 2 48.38 2
17
11.25 12.75 14.25 15.75
19.5 20.5 21.5
19.25
53.13
2 2
21.5
100 100
23.13 8.88 56
24
Furnace opening should be ½" larger than dimension CC for 10A thru 14 and ¾" larger than dimension CC for 16 thru 22. Whenever the tile length is greater than BB × 1.2, the tile beyond BB should flare out at a 30° angle (60° included angle). Flat face companion flange available upon request. Max capacity at "DD" is as shown in 1000°F column in capacity table. Consult engineering for R-tile use at higher capacities.
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 4821 Page 3
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