Dimensions | 4425 Fire•All™
3 19⁄32 " rad.
See Warning •
45°
1 1⁄8 "
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 " pipe plug furnished for use if no Pilot. § Observation Port
7 ½ " BC for -3, -4, -5 & -6 8 - 3⁄8 " bolts
Y
45°
P
Y
See ‡
Y
Y
C dia.
G
D * sq.
¾ " wide slotted holes
P
3 19⁄32 " rad.
9 3⁄8 " 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 ½ " 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 ¼ 1 ½
1 1
5 5 5 5 5 5
8 ½ 8 ½ 8 ½ 8 ½ 8 ½ 8 ½
5 ¼ 5 ¼ 5 ¼ 5 ¼
2 2 2 2 2 2
4 3⁄8 4 3⁄8 4 3⁄8 4 3⁄8 4 3⁄8 4 3⁄8
8 3⁄8 10 5⁄8 8 3⁄8 10 5⁄8 8 3⁄8 10 5⁄8 8 3⁄8 10 5⁄8 8 3⁄8 10 5⁄8 8 3⁄8 10 5⁄8
5 ¼ 5 ¼ 5 ¼ 5 ¼ 5 ¼ 5 ¼ 6 1⁄8 6 1⁄8 6 1⁄8
6 6 6 6 6 6
12 3 12 3 12 3 12 3 12 3 12 3
76 76 76 76 76 76
½ ½ ½ ½ ½ ½
2
1 ¼ 1 ½ 1 ½ 1 ½ 2 ½ 2 ½
2 ½
4011-11 or 4011-12
3 3 4 4
5 9⁄16 5 9⁄16 6 15⁄16 6 15⁄16
4425-6-B
4425-7-A 4425-7-B 4425-8-A
7 10 7 10 7 10
2 5⁄8 5 7⁄8 2 5⁄8 5 7⁄8 2 5⁄8 5 7⁄8
11 11 11
14 1⁄16 14 1⁄16 14 1⁄16
6 ¾ 6 ¾ 6 ¾
13 ½ 4 ½ 130 13 ½ 4 ½ 130 13 ½ — 139
9⁄16 9⁄16 9⁄16
6 2 ½
10 11⁄16
* Opening in furnace shell or outer wall must be ½ " 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 " air pressure tap on -2, -3, -4, -5 and -6. 1⁄8 " 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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