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
3/4 " NPT – 3 holes for Flame Detector, Observation Port, and Pilot Tip. † 3/4 " 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 - 1/2 " 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 D
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 1/2 " gas line.
NPT
dimensions in inches
Burner design.
Wt, lb
Rec'd Pilot set
A B C D E
F
G J
K N P R S
T
4425-2 4425-3 4425-4 4425-5 4425-6
11/4 1 5.0 8.50 0.50 5.25 2.0 4.38 8.38 10.63 5.25 6.0 12.0 3.0 76 11/2 1 5.0 8.50 0.50 5.25 2.0 4.38 8.38 10.63 5.25 6.0 12.0 3.0 76
2
11/4
5.0 8.50 0.50
5.25 2.0 4.38 8.38 10.63 5.25 6.0 12.0 3.0
76
21/2
11/2 5.0 8.50 0.50 5.25 2.0 4.38 8.38 10.63 5.25 6.0 12.0 3.0 76 11/2 5.0 8.50 0.50 5.25 2.0 4.38 8.38 10.63 5.25 6.0 12.0 3.0 76 11/2 5.0 8.50 0.50 5.25 2.0 4.38 8.38 10.63 5.25 6.0 12.0 3.0 76 21/2 7.0 10.0 0.56 6.94 2.63 5.88 11.0 14.06 6.13 6.75 13.50 4.50 130 21/2 7.0 10.0 0.56 6.94 2.63 5.88 11.0 14.06 6.13 6.75 13.50 4.50 130
3
4011-12
4425-6-B 3 4425-7-A 4 4425-7-B 4 4425-8-A 6
7.0 10.0 0.56 6.94
21/2
2.63 5.88 11.0 14.06 6.13 6.75 13.50
-
139
* 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. ‡ 1/4 " 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. D 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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