Dimensions | 4425 Fire•All™
DIMENSIONS IN MM
91.29 rad.
See Warning •
45°
28.58
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
190.5 BC for -3, -4, -5 & -6 8 - 3/8 " bolts
Y
45°
P
Y
See ‡
Y
Y
C dia.
G
D * sq.
19.05 wide slotted holes
P
91.29 rad.
238.125 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
228.6 for 4425 342.9 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 " NPT gas line.
NPT
dimensions in mm
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 11/2
1 127 216 1 127 216
13 13 13 13 13 13 14 14
133 133 133 133 133 133 176 176
51 111 213 270 133 152 305 51 111 213 270 133 152 305 51 111 213 270 133 152 305 51 111 213 270 133 152 305 51 111 213 270 133 152 305 51 111 213 270 133 152 305
76 76 76 76 76 76
35 35 35 35 35 35 58 58 63
2
11/4 11/2 11/2 11/2 21/2 21/2 21/2
127 216 127 216 127 216 127 216 178 254 178 254 178 254
21/2
3
4011-12
4425-6-B 3 4425-7-A 4 4425-7-B 4 4425-8-A 6
67 149 279 357 156 171 343 114 67 149 279 357 156 171 343 114
14 272
-
67 149 279 357 156 171 343
* Opening in furnace shell or outer wall must be 12.77 mm 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 4
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