Dimensions | 4425 Fire•All™
DIMENSIONS IN INCHES
3.594" rad.
See Warning •
45°
1.25"
Section Y-Y thru Pilot or Flame Rod opening.
E
Insulating refractory
¾ " NPT – 3 holes for Flame Detector, Observation Port, and Pilot Tip. † ¾ " NPT pipe plug furnished for use if no Pilot. § Observation Port
7.5" BC for -3, -4, -5 & -6 8 - 3⁄8 " bolts
Y
45°
P
Y
See ‡
Y
Y
C dia.
G
D * sq.
0.75" wide slotted holes
P
3.594" rad.
9.375" BC for 7-A, 7-B and 8-A 8 - ½ " bolts
F
4425- -MB Milk Bottle shaped hole T –dia.
Inconel Air Tubes
A pipe size combustion air inlet
B pipe size gas inlet
P
P
J
9" for 4425 13.5" for 4425- -MB
R
R
K
S sq.
N
NOTE: For 4425-8-A, the air and gas connections cannot be piped in the same plane, as shown on other side, because the "flower pot" type air connection flange would interfere with the 2 ½ " gas line.
dimensions in inches
Burner
Wt, Recommended
designation
A
B C
D
E
F
G
J
K
N
P
R
S
T
lb
Pilot Set
4425-2 4425-3 4425-4 4425-5 4425-6
1.25 1
5 5 5 5 5 5 7 7 7
8.5 8.5 8.5 8.5 8.5 8.5
0.5 0.5 0.5 0.5 0.5 0.5
5.25 5.25 5.25 5.25 5.56 5.56 6.94 6.94
2 4.38 2 4.38 2 4.38 2 4.38 2 4.38 2 4.38 2.63 5.88 2.63 5.88 2.63 5.88
8.38 8.38 8.38 8.38 8.38 8.38
10.63 10.63 10.63 10.63 10.63 10.63 14.06 14.06 14.06
5.25 5.25 5.25 5.25 5.25 5.25 6.13 6.13 6.13
6 6 6 6 6 6
12 12 12 12 12 12
3 3 3 3 3 3
76 76 76 76 76 76
1.5
1
2 1.25 2.5 1.5
4011-11 or 4011-12
3 3
1.5 1.5
4425-6-B
10 10 10
0.56 0.56
11 11 11
6.75 6.75 6.75
13.5 13.5 13.5
4.5 4.5
130 130 139
4425-7-A 4425-7-B 4425-8-A
4 2.5 4 2.5
6
0.56 10.69
2.5
—
* Opening in furnace shell or outer wall must be 0.5" larger than dimension "D" to allow for mounting plate fillet and draft. • Warning: Mounting plate and tile can be separated from burner body for convenience during furnace construction; but for -2 through -6 sizes, tile must be set in wall with notches for pilot and flame rod in proper position relative to desired air pipe direction. † Pilot, Flame Detector, and Observation Port positions are interchangeable as long as Pilot and Flame Detector are in adjacent holes. ‡ ¼ " NPT air pressure tap on -2, -3, -4, -5 and -6. 1⁄8 " NPT air pressure tap on -7-A, -7-B and -8-A. "Flower pot" type flange for -8-A. Note larger F dimension. § For 4425- -MB Burners, a second observation port is substituted for the Pipe Plug. The milk bottle tile is not offered with the 4425-8-A Burner.
DIMENSIONS SHOWN ARE SUBJECT TO CHANGE. PLEASE OBTAIN CERTIFIED PRINTS FROM FIVES NORTH AMERICAN COMBUSITON, INC. IF SPACE LIMITATIONS OR OTHER CONSIDERATIONS MAKE EXACT DIMENSION(S) CRITICAL .
Bulletin 4425 Page 3
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