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
¾ " NPT – 3 holes for Flame Detector, Observation Port, and Pilot Tip. † ¾ " 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 - 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
228.6 for 4425 342.9 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 " NPT gas line.
dimensions in mm
Burner
Wt, Recommended
designation
A
B C
D
E
F
G
J
K
N
P
R
S
T
kg
Pilot Set
4425-2 4425-3 4425-4 4425-5 4425-6
31.75 25.4 127 215.9 12.7
133.35 50.8 111.13 133.35 50.8 111.13 133.35 50.8 111.13 133.35 50.8 111.13
212.73 269.88 133.35 152.4 304.8 76.2 34.5 212.73 269.88 133.35 152.4 304.8 76.2 34.5 212.73 269.88 133.35 152.4 304.8 76.2 34.5 212.73 269.88 133.35 152.4 304.8 76.2 34.5 212.73 269.88 133.35 152.4 304.8 76.2 34.5 212.73 269.88 133.35 152.4 304.8 76.2 34.5
38.1
25.4 127 215.9 12.7
50.8 31.75 127 215.9 12.7
63.5 38.1 76.2 38.1 76.2 38.1
127 215.9 12.7 127 215.9 12.7 127 215.9 12.7
4011-11 or 4011-12
141.29 141.29
50.8 111.13 50.8 111.13
4425-6-B
101.6 63.5 177.8 254 14.29 101.6 63.5 177.8 254 14.29
176.21 66.68 149.23 176.21 66.68 149.23
279.4 357.19 155.58 171.45 342.9 114.3 279.4 357.19 155.58 171.45 342.9 114.3 279.4 357.19 155.58 171.45 342.9 —
58 58 63
4425-7-A 4425-7-B 4425-8-A
152.4 63.5 177.8 254 14.29 271.46 66.68 149.23
* 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. ‡ 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 4
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